Phylactery 17

I need to figure out how the Lich Survivors log titles are stored, then plan to rename past entries to "Phylactery" accordingly, starting with checking memory for the project's title conventions.

I'm also weighing whether this rename requires a deploy to take effect on the live site — since the policy is to ask before publishing, but the user's request directly implies making the renamed titles visible. Logs are gated though, so I should check the project memory file and workflow docs before deciding.

I'm checking how log titles are stored, looking at frontmatter for gated logs and the workflow README to understand naming conventions. I'm also noting that `anchor repo rename` changes slugs/URLs by moving cards and replays, but the user only wants titles changed, not slugs.

I also need to figure out how session naming works going forward—whether the next session's title gets computed from previous logs, or if it's manually set by the user during the end-session flow. Let me check how `anchor end` determines the title.

I need to check the title source in the frontmatter and heading, and the summary text that references the old title internally - the user's explicit rename request should take priority. There's a memory about past logs being immutable, but since the user is directly asking for this rename, that overrides the general rule.

I should also check other places the title might live beyond the log file itself - converted JSON data, workflow run records, journal cards, the game's site post entry, maybe even the game's in-game title or unlock text. The rename likely means the project's display name should change everywhere it's referenced, not just the folder/repo name. I want to grep the workflow README for "title" and "rename" to find all the places this needs updating.

I realize titles persist in state.json, so a title edited only in the published file reverts on the next republish. I should check how `--title` retitling works in anchor.py to see if there's a cheaper way to update titles than editing both state and published files for each Lich Survivors run.

Let me check endflow.py around lines 660-730 and 1131 to see how republish writes the title.

Doing a full republish would regenerate the log with the current converter, which risks altering content and conflicts with keeping past logs immutable—plus it's heavier than needed since only the title should change. The cleanest approach is editing the title field in each run's state.json and the corresponding Title/heading lines in the published markdown directly, then running convert.lua --all and deploy.sh --data to push the update live.

I also need to check final.md copies in each run directory, since they may be the actual published file and need matching title updates, and consider whether delegate/child logs that reference "Lich Survivors" in their own titles (like reference logs or agent logs) should also be renamed for consistency, since they're technically logs too.

There's also the admin posts file for the game card itself, whose on-site title probably needs to change to Phylactery -- but that only takes effect through a deploy, and deploys to the live/admin data are something I should ask about first per my usual practice, even though the user's retitling request technically implies this as the mechanism to make it visible.

But CLAUDE.md's guidance is to ask first only for things that are public or irreversible, like deploys. Since the user directly asked for the rename, deploying the retitled logs seems covered by that request -- except a data deploy might carry along other unapproved changes, like the hidden-logs renderer line or the game's admin copy edits, so I need to check what deploy.sh --data actually pushes before doing this. I should also remember that the end-of-session anchor flow deploys automatically anyway.

I need to update references across MEMORY.md, CLAUDE.md, RECORD.md, and NEXT_SESSION.md to reflect the Phylactery rename, including the window title in the game code, and note the next session should be labeled "Phylactery 17." I should leave the Claude Desktop sidebar session titles alone since those are separate from the logs, and double-check the Anchor workflow's slug rules don't conflict with the new title.

New logs will use phylactery-N slugs while old ones keep lich-survivors-N, which is fine since only titles need changing, not URLs — altering slugs would break gated log links, replay folder paths, and cross-references. The folder/repo name itself ("lich-survivors") is woven into sync scripts, run-unlock.bat, and the game host id, so renaming that would cause too much churn and isn't necessary unless it's clearly cleaner.

I'll keep the folder/repo/game id as lich-survivors and note this in the handover. Now I want to check the site's game entry title in admin/posts/lich-survivors.md and scan the run directories for all Title lines.

I need to figure out which run directories correspond to each log, so I should check the state.json files for ones with "Lich Survivors" in the title, and also check run.json for reference data.

I want to check whether final.md in a run directory is just a copy of the published page, so I'll look at its header alongside log.md. I also need to trace how the delegate child page title gets generated—seems to come from run.json's title via weave_children on republish, so updating run.json's title should keep things consistent. Let me also check the deploy.sh flags, convert.lua's --all option, and the site's git status for any undeployed changes.

The last commit for session 16 appears to have deployed already, so the site should be current as of that commit. The uncommitted changes I see — media-meta.json, some tools edits, untracked replays-player files — aren't mine, so I'll leave them untouched and check whether deploy.sh deploys git HEAD or the working tree.

Since deploy.sh likely refuses dirty trees, I need to figure out how it checks for that. For the rename itself, I'm planning to update state.json titles and final.md headings across all 16 runs, update the published gated markdown files' title and heading lines, and handle the delegate refs log title plus the delegate directive embedded in log 1 that references it as a card label — I'm leaning toward updating that too for consistency since it reflects the child log's title.

I also need to rename the child refs log itself to "Phylactery look references (Astra)" since it's a sub-log of the main project, and then update the game's admin post title and check for any in-game display name references like a window title in boot.lua.

After making these doc and title edits, I need to regenerate data with convert.lua --all and deploy with --data per the workflow, then update project memory, MEMORY.md, CLAUDE.md, and NEXT_SESSION.md to reflect "Phylactery 17" and commit/push the changes to both repos.

On deployment: since the user explicitly asked to rename log titles and that's what shows on the site, I think a data deploy is implicitly authorized by this request itself, even though CLAUDE.md generally treats deploys as ask-first. I should check whether the site's current state already has pending undeployed changes from session 16 (there was mention of a hidden-logs line not yet deployed) before pushing this change, so I don't accidentally ship unrelated work.

I'm checking what deploy.sh --data actually syncs — I want to confirm it won't also push the games admin mirror unless it was repacked.

Deploy.sh always rebuilds the bundle regardless of mode, so deploying with --data just adds the data sync on top of the same HEAD bundle as before, which should be consistent with session 16's deploy. I'll give the user a quick update and then start writing a Python script in scratch to handle the edits.

First I should check the game-side display strings — grepping the lich-survivors project for "Lich Survivors" in both Lua code (excluding comments) and the site renderer's Lua strings.

All 16 logs and the Astra references child log store the title in three places each (state.json, final.md, and the published gated page). Now I'll check if the game or site surfaces the name anywhere players would see it.

The RECORD.md and ANCHOR_PORT.md titles are pinned artifacts inside logs and should stay untouched. I can safely update the game's window title in main.lua from 'Lich Survivors' to 'Phylactery' since that's just engine config, but I still need to check the site admin copy for the game.

The admin post title for lich-survivors should also change to "Phylactery" since that's the game's title shown on the site, and it'll go live through the data deploy. As for whether to actually run that deploy, I'm weighing the CLAUDE.md rule that asking first is only needed for public or irreversible actions — since these logs are gated and the admin post isn't public-facing, deploying this data likely doesn't require pre-approval.

I still need to figure out the correct sequencing though — whether the site commit needs to happen before running the data conversion and deploy, and how the VPS repo syncs with the prod remote, so I don't end up with diverging histories between the site repo and prod.

I'm confirming the deployment flow: edit markdown files, commit, push to prod which triggers the SEO server restart, then run convert and deploy scripts. Now I'm planning the rename script, starting with updating the title field in each workflow run's state.json from "Lich Survivors N" to "Phylactery N" via a targeted text replacement to preserve existing JSON formatting.

I need to check whether other fields in state.json also reference the title, like a commit message, so I should grep for all "Lich Survivors" occurrences first. Beyond state.json, I'm also tracking other places the title appears: the final.md files, the gated site markdown pages, the delegate run.json and its unlisted page, and the delegate directive embedded in gated pages that regenerates from run.json on republish.

There's also admin/posts/lich-survivors.md with a different title ("Phylactery"), the main.lua file's own title field, and I need to confirm there's no vault copy since these logs are gated rather than sealed. Pins referencing "Lich Survivors" in their content are unrelated, and the note about lich-survivors-11 being first published as -13 and later unpublished isn't relevant here either. My next step is to grep state.json comprehensively for every occurrence.

I'm wondering whether the directive's title shows up as the card label on the site, which would mean I need to update it across several files — the gated markdown, the run's final and log files, delegates.tsv, and run.json since weave_children regenerates the directive from it on republish.

Since republish regenerates log.md from run.json anyway, updating it is just for consistency and not critical. I want to keep the change minimal: swap the exact phrase "Lich Survivors look references (Astra)" for "Phylactery look references (Astra)" everywhere it appears as a title/directive, but I need to check how many times that string shows up in the gated file to make sure I'm not missing an occurrence in the brief text.

I'm also checking the unlisted refs page for occurrences, then planning a script that goes through each run's state.json, final.md, and the site's gated markdown to rename "Lich Survivors N" to "Phylactery N" consistently, including the special Astra directive line, deciding to use the scratchpad for this temporary script.

Good, the unlisted page just has a title line without a heading. Now I'll write the script.

I realize the heading replacement could accidentally match other lines further down, so I need to limit the substitution to just the first occurrence by adding a count/limit parameter and checking that exactly one match was replaced. I also need to clean up a stray leftover line from an earlier edit.

My heading replacement didn't actually apply because the escaped characters in the heredoc didn't match. I need to check whether runs/4e243478/final.md starts with the correct title, then fix lines 46-50 of the script using the Edit tool.

I realize the final.md files use CRLF while site pages use LF, so I need to make my regex patterns line-ending agnostic by matching `\r?\n` instead of assuming a fixed ending, and using lookaheads like `\r?$` with the multiline flag so headings and title lines match regardless of format. I'll update the patterns around lines 47-50 accordingly.

That looks good, I'll apply it. I also need to update the game window title in main.lua, then check git status in Anchor to confirm whether the runs/ directory is tracked.

Since runs/ is gitignored, I only need to commit the delegate run.json file and leave the others untouched. I should also check whether `title` in main.lua is used anywhere beyond the window title—like in the save directory path or replay header—by grepping the game's anchor copy, since replays seem to be keyed by the game directory name rather than the title.

Now I need to update the docs: noting the rename in CLAUDE.md so future sessions know the game is now called Phylactery while folder/repo/log names stay the same, and adding a corresponding note near the top of RECORD.md.

I should check NEXT_SESSION.md too — it still references "Lich Survivors 16" from session 15's handover, stale since session 16 ended, so I'll just add a name note there rather than rewrite it fully. I also want to update project memory files, the MEMORY.md index line, and main.lua's header comment to reflect the new name while keeping the old one referenced, plus check README.md's title and anywhere on the site that surfaces the game's name to players.

The game post title is now "Phylactery" — unlock effects use ids so that's fine, and REDESIGN.md mentions are just history. I don't think the Claude Desktop sidebar session titles matter since they're not logs, though I might note it briefly. For future session endings I should title things "Phylactery 17" with slug phylactery-17, and anchor end's title-collision checks should be unaffected. Let me now go check RECORD.md's header and README.

I should update the memory file now—revise the frontmatter description in project_lich_dream_game.md, add a rename note at the top, and update the corresponding index line in MEMORY.md.

I need to regenerate the data, commit only my files, push to prod, and deploy. I've reasoned the deploy is within scope since logs are gated and the game post is admin-only, so I'll proceed. But I notice there are uncommitted .py changes and a media-meta.json file that aren't mine, and deploy.sh's dirty-check guard only looks at .lua/.sh files, so that won't catch them.

The remaining dirty files are fetch tools and media-meta.json, which aren't code and sit outside the renderer's git status scope since that guard runs from the renderer directory. I also want to confirm convert --changed correctly detects title edits by comparing source mtimes/hashes, which it does. Now I'm trying to figure out the right push order—commit the site markdown files, then push to prod—and I want to check how similar pushes were done before, recalling a note about a new push hook affecting deploy.sh ordering and locks, so I should grep for prior examples of pushing the site.

Docs and memory are updated. Next I'll commit the retitled pages, rebuild content, and deploy data so the new titles show on a327ex.com, following the usual deploy flow after checking how it's normally triggered.

For my change, running `--data` should be enough since deploy.sh's convert step doesn't run on its own — I need to run convert manually first, then deploy with `--data`. I'm double-checking the deploy script comments to confirm convert's `--changed` flag only reprocesses pages whose sources moved.

I'll commit only my 18 files for the site.

The CRLF concern checks out fine since .gitattributes enforces eol=lf, and the diff confirms only the title lines changed across the log files plus a few other entries, totaling 35 lines. Now I'll proceed to convert the changed files and deploy with the data flag.

The word count shift is fine as-is. Now I'll deploy with --data, running in the foreground with a long timeout since it can take several minutes.

The bundle on the VPS is unchanged, which is good since no renderer code shipped, and 21 data files synced fine. Now I want to verify live that the gated index requires the viewer cookie, since data/gated/ sits behind the gate — curling without the cookie should give a 403. I'll just grep the gated index.lua file directly on the VPS via SSH to confirm the Phylactery entry is there, which is a safe read-only check.

Deployment finished—the renderer bundle stayed unchanged while 21 data files synced. Since the gated pages require a viewer cookie, I'll verify the live files via SSH instead of curl.

The gated index now shows 16 log titles, with Phylactery as the game post in the admin index and no leftover "Lich Survivors N" entries. The SEO crawler-facing HTML restarted fine via the post-receive hook. Now I need to commit the lich-survivors project changes to main.lua, RECORD.md, CLAUDE.md, plus the Anchor delegate's run.json, since there are untracked files in that repo.

There are some sfx files in the repo that aren't mine, so I'll only add my three files, and for Anchor I'll only add the delegate's run.json without pushing yet since pushing happens at session end. The main.lua edit is a trivial string change, so instead of running a full anchor check (which spins up LuaLS and could be slow), I'll just do a quick Lua parse check using loadfile to catch syntax errors.

The window title setting only runs at init, so reloading main.lua on save should be harmless. The admin site copy still references the old "Lich Survivors" title, but that's irrelevant since the site doesn't render a window.

Since the user implied there's more to come after the rename, I should wrap up with a status update and ask which open item to tackle next — round 80 verdict, syncing/packing/deploying the admin copy to carry rounds 79-82, or the Steamworks pipeline rehearsal planned for a future session. Let me check the pending decisions and next-planned sections to give an accurate rundown before asking.

The planned-next note is outdated — memory actually shows session 16 covering round 80's pending verdict, round 81 on web performance, and round 82 trimmed by two seconds, with the admin copy needing a sync, pack, and deploy to carry rounds 79-82 before the Steamworks pipeline rehearsal he's planned as the next session, followed by public release. I should wrap up with a recap and ask him which direction to take next.

I'll note the Claude Desktop sidebar still shows old "Lich Survivors N" session titles (not something I touched since those aren't logs) and could offer to fix that, and I'm keeping the `lich-survivors` folder name since it's referenced across game_host, server unlock checks, replay player folders, R2 replays, and journal config — renaming would move live paths for no visible benefit. I'll write the summary text first, then call wrap_up with the question and buttons, since no text should follow that call.

All titles are now "Phylactery" across the logs, site, and game window (log text stays "Lich Survivors" as intended), everything's deployed, and the game's id/folders/URLs stayed unchanged since they're used internally. Still open from session 16: your verdict on round 80 mechanics, syncing rounds 79–82 to the admin site (needs your OK), and the planned Steamworks rehearsal session.

I need to check the round 80 section in RECORD.md to get accurate details before answering.

I should answer concisely and mention the open testing switch Q that follows the shaft versus him. There are films at rounds/80-familiar-pacing/*.mp4 I could link, but let me quickly verify they actually exist before referencing them.

Time to draft the actual answer, keeping in mind his two design preferences—using the lens as something familiar and never stacking three or more skills at once—plus addressing the follow-up questions 80b through 80d. I still need to cover his overall verdict and clarify how the Q switch behaves, whether it follows the shaft by default or follows him.

I still have several threads to resolve: the game post needs its real release date but positioned right after the hiatus post rather than in strict chronological order, the final unlock effect shouldn't allow scrolling while it plays, and the hidden-logs byline line should be built letter-by-letter like the other unlock text but without a lock icon.

I recall the redesign notes (round 46c) say this byline-building behavior and lock removal were already implemented, so maybe the deployed site is out of sync, or something about the live rendering differs from what was committed — I need to check whether that commit actually made it live. There's also the slow game load issue (loading hundreds of items takes about a minute), which I want to fix with lazy loading or an intro/loading screen so the game feels playable right away.

Given the scope, I should start by updating my plan: read through the site code covering dates, the unlock effect, and game loading, then tackle the pinned release-date display, scroll-blocking during the effect, and the hidden-logs byline fix in sequence.

For deployment, since he tests directly on the live site, I should remember CLAUDE.md's rule to ask before deploying — I'll flag this in the wrap-up rather than deploying unilaterally. Before touching code, I'll grep REDESIGN.md for the relevant section headers to find the exact spec for these features.

I'm confused about the discrepancy — 46c claims the hidden logs line isn't part of the effect, but the deploy check shows the bundle built from the current tree matches what's live on the VPS, so the current code should already reflect that change.

Maybe the real reader path behaves differently than the desktop test: the hidden-logs row only shows to scope 'posts', and the timing of when GATED_SCOPE switches relative to the posts merge during the unlock run could explain why it worked locally but not live. I also need to remove the lock icon next to that row since it's informational, not a locked post, and make sure its lock state is set to 'none' during the effect.

I should also block all scrolling (wheel/keys) during the unlock run, not just the follow behavior mentioned earlier. As for the game post's placement, he wants it displayed with the actual release date but positioned immediately after the hiatus post and before any later posts — which in a newest-first list means keeping its current spot right above #560, just one second after it, while showing the real release date once that's determined.

Since the actual release date isn't known yet, I'm thinking I need a separate field like `Released:` that controls the displayed date while `Date:` still controls ordering. The tricky part is what to put in that field right now since the release date hasn't happened — maybe it gets stamped automatically when the post goes public, but I need to figure out what placeholder or mechanism makes sense in the meantime.

I'll settle on adding a `Released:` header field in the admin post file, set to a placeholder date for now, with a note to update it at the actual release step and add it to the release checklist. I'm also noting that the list sorts entries by date, and the entry currently lacks an Id field, though that wasn't asked about.

Beyond the list row, the date also surfaces on the opened post's header, in RSS, and in the server-side SEO HTML once the post moves from admin/ into the public posts/ folder — so the field needs to be honored there too eventually, though for now I'll keep scope to the renderer's display and have convert.lua carry the field forward, checking later whether server code actually reads Date for posts.

Now turning to the bigger issue: game loading taking around a minute for 700+ items, with the package itself being 661+ files totaling 78 MB uncompressed (29 MB gzipped per probe), and a fetch concurrency limit of 8 inflight requests.

The game_host currently blocks on the entire manifest before starting, when really it should start playable immediately and lazy-load the rest. I'm sorting out what's actually needed at boot — cave meshes, the light bake texture, snakes, the lich skeleton, a few heavy object meshes, shaders, and fonts — versus what can wait, like the large sound library and most of the Lua port modules, since sounds can load in the background after start while object meshes mainly matter for inventory icons and thrown/viewed objects.

Looking at the round-45 probe numbers again: 78 MB total data, 29 MB gzipped, dominated by three big object meshes and a 12.6 MB float texture, with a 6.5s boot where most of the delay is shader compilation. That measurement was from file:// loading everything at once, but on the live site it's 700 files fetched 8-at-a-time over HTTP — so I'm estimating whether latency (700/8 requests × ~100ms) plus bandwidth for 29-78MB could really stretch to the reported one-minute load time, and wondering whether these files are even being gzip-compressed by nginx/Cloudflare in the first place.

This admin-gated path likely bypasses Cloudflare's cache entirely, hitting the VPS directly each time, and if that VPS has limited upload bandwidth (say ~1.5 MB/s), transferring 78 MB uncompressed would take roughly 52 seconds — which lines up almost exactly with the reported one-minute load. That points to bandwidth as the real bottleneck, meaning the fix should focus on shrinking bytes transferred before gameplay starts and enabling compression, so I'm sketching a plan: first measure file sizes by category to identify what's truly needed for the opening seconds, then apply compression (checking nginx config for gzip_static on the data files, which should cut 78MB to ~29MB) and lazy-loading so the game starts once a minimal "boot set" is ready while the rest streams in afterward.

I also need to think through how asset dependencies work in-game — whether sounds can defer playback until loaded, and whether inventory objects like the lens, mask, hand, lodestone, orbs, and gem are visible in the scene from the start or just referenced, since that affects what qualifies as part of the boot set. This requires digging into the actual loading code to see how files get read and textures get initialized.

For lazy loading to work, game_host needs an API to check if a file is ready, since the engine typically does synchronous reads and currently waits for the full manifest to download into the filesystem before boot. The ~0.7s desktop boot time seems surprisingly fast given that sculpting the mask, hand, and lodestone at load is already known to take seconds on its own.

Beyond file loading, there's also a separate 4-5s shader compilation freeze on web even once all assets are present — that's a distinct cost that KHR_parallel_shader_compile might address, and I should verify it using webbench, which embeds all files as base64 to measure pure boot time.

Given the scale of code to review, I should delegate — I have a large context budget but reading everything directly isn't efficient. I'll launch an Explore agent to map Lich Survivors' asset load path: which files load at boot versus later, categorized by size and type across the renderer/admin/games packages, and how the game host orchestrates loading.

Actually, I'll handle the game_host fetch logic myself since I'll be modifying it directly; the agent can focus on mapping the game side instead — boot.lua, port files, and when each gets read. First though, let me just pull the file size breakdown myself since that's cheap to do directly.

Breaking down the 93 MB total: items account for 61 MB, sounds 16 MB, the lich 9 MB across 240 files, and the cave, programs, and statics make up the remainder. I'm now thinking about what the item assets actually get used for — inventory icons, the inspect viewer on click, and the thrown objects that appear on the floor.

The orbs that hover around the player at start need their geometry loaded immediately, as does whatever object the attack lens draws from. I'm noting that obj_rt_5.f32 is a 12 MB float texture, likely a render target. Rather than guess further, I want to spawn an Explore agent to trace the actual boot sequence and figure out which assets load at the very first frames versus later — meanwhile I'll keep working on the site details like the date, scroll lock, and hidden-logs line, and give the user a quick update before launching that agent with a detailed prompt.

The package totals 797 files (93 MB), with the six objects (61 MB) and sounds (16 MB) accounting for most of the load time. I'll delegate mapping boot-time vs. later asset loading to a read-only helper while I tackle the three site fixes directly.

Now I'm looking at how dates get displayed in list rows and how entries are sorted, so I need to check front.lua's row drawing and document sorting logic.

I'm thinking the cleanest fix is to add a `shown` display-date field populated from a `Shown:` or `Released:` header in convert.lua, then use `e.shown or e.date` wherever a date is rendered, while keeping actual ordering based on `e.date`. I need to track down every place a post's date gets displayed—the row listings in front.lua and the individual post/article view header—to apply this consistently.

For naming, `Released:` feels more intuitive since this is specifically about a game's release date, but I'm stuck on what value to put there now since the game hasn't actually released yet. Leaving it blank keeps showing the wrong date, and using today's date or last-deploy date doesn't feel meaningful either—I need to think through what placeholder actually makes sense here.

I'll flag this as a stand-in value to update at actual release time. Checking the other ordering logic — hidden logs, unlock effects, and the "hidden logs since" line all key off the date field too, so that stays consistent. Now I want to check whether the expanded post row or the dedicated post page also displays the date somewhere that needs matching.

I'm tracing all the places dates get displayed—post headers, tag pages, book listings—and realize the cleanest fix is adding a `shown_date` concept alongside the ordering `date`, with a helper function that picks `released` or falls back to `date`, then updating each display site to use it.

I need to pull the `meta.Released` field in convert.lua and thread it through into the index lines as a `released` field, across the public, gated, and admin trees — checking the write_index and convert_admin functions around those line ranges to see where to hook it in.

The cache file also writes a fixed set of fields for each entry, so I need to add released there too, otherwise --changed reuse would silently drop it just like the earlier game field bug. Let me check lines 1380-1410 and the cache read logic.

I should check line 1566-1568 to see another place entries get built, since the field needs to flow through write_index for all trees so that when the post moves from admin to public it carries correctly. I'm also considering whether bumping CACHE_VERSION to 6 would force a full reconversion of the cache, which seems like a heavy-handed fix.

Actually, the cache reader likely just checks the version and rebuilds automatically if it changed, so that's fine. Let me go ahead and make the edits to convert.lua.

There's another spot that also drops the `game` field, but that's a pre-existing issue unrelated to this gated posts index, so I'll just add `released` there too and apply the edits using the Edit tool.

I need to check whether the metadata parser actually captures a "Released" field — I should look at how generic header lines are handled around that parsing function.

I'm realizing the SEO/RSS rendering should prefer the Released date at release time, but since the admin post isn't served publicly, I'll just note this concern in REDESIGN for later rather than fixing it now. Now I'm moving to the renderer side and sketching a helper function to determine the shown date for an entry.

I need to trace every place that currently displays `rec.date` directly — front.lua, main.lua, tagpage.lua, and book.lua — and update them to use this new fallback logic so Released dates show consistently everywhere. I also want to check date_by_slug, which is used for link preview dates, and see if it should pull from entry_info's released field instead of the raw date.

I'm checking front.lua around line 266 where `rec = e` is assigned, trying to figure out whether `e` comes from book_stream or works_index records so I can trace what fields get copied.

I'm adding a helper function that picks the date to display for a row—using the Released field if present, otherwise falling back to Date—then updating the three call sites in front.lua to use this new entry_shown_date helper when formatting dates.

I also need to propagate this into book.lua's stream record (adding a released field and using it at the relevant date_time calls) and consider main.lua's untitled-post handling, though that's less critical since it's titled there. Link previews elsewhere, like for /posts/lich-survivors, would still show the wrong date since date_by_slug doesn't account for Released, so I should check how date_by_slug is constructed to see if it's worth fixing there too, though it may be used broadly enough that it's not worth the risk.

I'm tracing where date_by_slug is set and used—it drives the crumb date display on article pages, and admin entries populate it through rebuild_models, so I need to check if changing its values there would affect other display logic.

I'm checking all the uses of date_by_slug and confirming they're all display or existence checks, so switching it to use released-or-date is safe since ordering relies on a separate index sort instead.

I also need to apply this same change to front.lua, tagpage.lua, and book.lua, adding released usage at the relevant spots in front.lua and writing a shared helper in works.lua.

I'm checking whether date_by_slug is used for ordering comparisons elsewhere, but it looks like it isn't. Now I need to figure out what value to set for "Released:" in the lich-survivors admin post file.

I'll use "2026-10-15" as a placeholder value since the real release date needs confirmation, noting he can update it once the actual date is known. Nothing else sorts by `released`, so that's settled.

Next I want to look at how scrolling behaves during the unlock effect — examining unlock_fx.lua's run-state tracking and how main.lua handles wheel/key/scrollbar input, looking for something like an active-state check function.

I'm tracing through how a real reader unlock would reveal the hidden logs row, since it only shows when GATED_SCOPE is 'posts' for an actual reader—wondering whether the posts merge and the scope change happen within the same refresh cycle so the hidden row appears correctly timed.

If the scope change happens after the unlock run has already started, the hidden row would just appear plainly in a later refresh rather than animating with the effect, since the run flag would no longer be armed. I'm checking whether leftover logic from an earlier version still hides the row until the run finishes, which would explain it appearing without the intended effect on the live site, and considering whether testing this through admin's "view as public" test-reveal path triggers the same merge timing as a real unlock.

I'm now wondering if the live site is somehow not actually running the latest committed version despite the deploy claiming the bundle is unchanged, but the hash match suggests it is current — so the discrepancy must be something else, perhaps in how the desktop test differs from the web path in merging gated content.

I'm tracing whether the front_doc signature actually updates when gated posts get revealed during the test path, since the row only appears once hidden_of returns a value—and I need to check whether viewing as public changes that signature when posts enter the list.

The hidden row is drawn last and is captured via the scratch-layer glyph read, using draw_text_fallback with the italic font; that worked fine on desktop, so the puzzle is why the web run doesn't show it. It's possible the hidden row sits at the very top, above all other posts, and gets built while the page is still rising, so its letters aren't captured in time the way they are elsewhere.

I'm checking whether GATED_SCOPE is set to full-admin on the web view, and whether the unlock effect's hide logic (the code that suppresses drawing a row until its letters finish building) still applies to this hidden row — I need to trace through update and draw in unlock_fx to see if there's a lingering "hidden" flag affecting it.

I can't immediately pin down the cause from reading alone, so I should actually run the desktop test headlessly with the site-unlock flag and check if the hidden row shows up, since it passed before. The real difference might be that on web, gated posts get merged in at boot from the cookie fetch, so in the public view the hidden-logs row could behave differently -- I need to trace through what the actual reader sees.

Thinking through the real client flow: unlock triggers a server response, sets a cookie, then fetches gated posts and merges them in. If the gated scope marker gets set after that merge refresh, the hidden row would only appear in a later refresh once the unlock animation state clears -- which matches the earlier observation that it pops in at the end rather than being drawn progressively. Since he's admin, he'd likely be testing this through the public view toggle on the actual site rather than this isolated path, so I want to check exactly where the gated scope gets set relative to the merge in the unlock and main logic.

The real fetch path sets the gated scope before merging, so posts and the hidden row should arrive together - that seems fine. On the test path too, viewing as public should reveal everything correctly. So the discrepancy on web might stem from the hidden row already being displayed before the reveal was triggered.

If `__hidden_logs` existed prior to arming - say from a previous test in the same session where revealed was already true - it wouldn't register as new, so it stays static above the animated rows instead of participating in the effect. For a real reader who already unlocked, both posts and hidden row show together, which is correct. But for the admin replaying in VIEW AS PUBLIC, I need to check whether revealed resets between plays or persists, since that would explain the row sitting statically at the top.

I think I need to actually reproduce this rather than reason it out further. There was a prior check on headless desktop unlock testing that confirmed the row-building and sound, so I should dig into the probe scripts for how hidden elements get detected in that test harness.

I'm noticing land_probe.lua, wheel_probe.lua, and rkey_probe.lua related to the session 16 site tests, so I should check land_probe.lua since it likely drives the desktop unlock test and could help reuse that harness, along with film_probe.lua in the scratch/unlock folder.

I need to figure out how to start the site as an agent instance with the unlock test enabled—run-unlock.bat sets SITE_UNLOCK_TEST and LICH_START=EGG, so I should check that batch file first before using `anchor drive start` on the renderer directory with matching env vars.

I should check on the background agent next, running the desktop unlock test headlessly through the anchor drive with the right env vars, using the admin copy hosted from round 78 since that's fine for testing the unlock path. I need to be careful though since GPU-heavy headless runs slow down his PC, so I'll stick to one capture at a time with short runs.

I'll write a probe that waits for the game to start, clicks through, waits for the unlock effect to run, and records the row states — checking whether hidden rows have the hide flag during the run and whether they're drawn afterward. I'll also think about testing the real reader path by simulating public scope and an unlock fetch, though on desktop without a server or cookie that path may not be testable, so I'll skip it unless necessary. I need to figure out how the anchor drive is invoked with the right environment variables passed through to the child process, then write the probe script into the scratch directory for this test.

On desktop, I'm noticing row 17's hidden flag stays true for nearly the whole run and only resolves right at the end—so I'm checking whether the letter timing for that row (starting around 3.2s in) actually aligns with when it clears, to confirm the row is genuinely being built by the letters rather than just flickering visible at the finish.

Now I'm trying to figure out what actually differs on the web side. The GATED_SCOPE value and view_public/UNLOCK_FX.revealed logic looks identical to desktop, so the hidden row behavior should match too. I'm wondering if the real distinction lies in how unlock.lua handles the admin's VIEW AS PUBLIC state versus not—if he tested without that mode active, the posts would already be visible and the unlock would have no visible effect, which might explain why what he's describing as "the effect" doesn't line up with the actual reveal logic.

The web admin "view as public" path should use the same unlock mechanism as desktop, so I'd expect matching behavior—unless the hidden row's position differs since it's rendered near the top of the list right after the chips, built last during the page's load.

Maybe the discrepancy is visual rather than logical: perhaps the lock icon is rendered as a static whole image regardless of state, or the italic font used for the fallback text doesn't exist on web and silently falls back to a different font, which could affect capture. Rather than keep guessing, it might be better to just ask what he's actually seeing, since he mentioned the hidden row still isn't treated as part of the effect and needs to be unlocked like the others.

He's saying it should go through the same unlock moment as the other posts — the lock burst/lift effect — but paradoxically shouldn't display a lock symbol at all, since it's just information, not a locked post. So the resolution is: strip the lock icon from this row entirely, but still run it through the same reveal choreography (burst, shine sweep, warped air) as the other rows minus the actual lock graphic.

Without a lock, maybe the "unlocking" moment for the hidden row is just the sweep of warped air plus the shine, since there's nothing to lift/burst — and the row should have no lock symbol at all, even statically. I want to check unlock_row to see what stages actually exist per row beyond the lock, since there might be a shine/sweep stage I can reuse for the hidden row.

I want to trace where unlock_row gets called and locate the point where rows with a 'none' state get skipped, so I'll search for "state" references inside unlock_fx_update.

That confirms the hidden row has no unlock logic triggered, so it never gets the burst/sweep/sound treatment—just plain letters. The fix should give this row the same unlocked behavior as the others and remove its lock symbol entirely.

I'm also wondering whether the letter-building animation is actually failing on the web version too, which would explain why the row just appears instead of being constructed—maybe something specific to how the web captures or renders it is skipping that step.

Since the hidden row has no lock symbol, its "unlock" moment needs a different anchor — I'll have the burst originate from where the lock column would be, with the glass glint, ring, ripple and twinkles spreading along the row, using the same sounds and the warped-air sweep effect that drives row drawing to tie it visually to the rest of the unlock sequence.

Rather than giving the hidden row an empty lift phase (which would be awkward — a pause before a burst from nowhere), the cleaner approach is skipping the lift entirely for this row: once the letters resolve after the hold, trigger the burst effects immediately.

I should treat 'none' as a state that still bursts, adding a 'bare' → 'broken' transition so it participates correctly in the locks_done ordering and plays its sound last. Now I need to check how lock_shapes, unlock_fx_row, and front_row_lock_at handle the position and _fx_m for a row without a rec.

Now I see it - the row's moment is what triggers the visual unlock (pop, warmth, spectral line, sweep), but the hidden row never gets a rec object, so it never gets that moment assigned. I'm tracing where unlock_fx_row is called from in front_draw_row, and it looks like hidden rows return early before that check even happens.

I'm thinking through how the hidden row should look: no lock symbol in the static state, keeping the text aligned in the title column, while in the animated effect the row acts as a placeholder using a stand-in record.

For the unlock behavior, I decide the hidden row should use a pseudo marker field on the element itself so the existing tick/clear logic works unchanged, and the lock state transitions through the same 'wait'/'whole' stages but skip the lock-lift animation since there's nothing to lift—triggering the burst immediately. Since there's no lock glyph to anchor the burst position to, I need to figure out where to center it, likely using the start of the row's text or id column as a stand-in coordinate.

The concern now is sequencing: since the hidden row is last, its burst normally determines final timing via the lift delay, but without a lift phase, scheduling the final sound "after the lift" would misalign with when the hidden row actually pops, so I need to rework how `locks_done` and the final timing interact.

I'll skip the lift sound for the hidden row since nothing visually lifts, but keep the burst sequence (glints, ring, flash, ripple, twinkles, pop, warm tone, spectral line) timed the same as the other rows' bursts.

Since the hidden row lacks a lock, I'll center the burst near the start of the text rather than at a lock position, offsetting slightly to the left of where the text begins. I still need to work out whether the sweep visual effect ties into the existing postfx handling via the row's effect state.

I need to fix the fallback for `_fx_m` in both the row drawing function and the front draw row function so they check `el._fx_m` when `el.rec` doesn't have it, then verify unlock_fx_row and postfx don't reference el.rec elsewhere.

I'm working out how the hidden row should behave: it follows the same wait/lock_in state rhythm as the other rows, just without an actual lock being drawn, and when unlocking it skips the lock-lift portion since there's nothing to lift.

For effects, the burst still fires at the moment a lock would have broken, centered on the row, but shatter is skipped since there's no lock pieces — I keep the wring, glow, ring, glints, and twinkle effects along with the burst and sweep sounds. I'm also tracking where the FX marker gets stored and cleaned up on the row's record, and making sure the front-row draw and postfx sweep pull from the same place.

Now I need to check the unlock_fx_draw function around where it iterates locks and calls lock_shapes, to make sure the hidden row's lock never actually gets drawn.

Shattering with empty shapes produces no pieces, which is correct. But I realize I referenced helper functions and constants that don't actually exist in the codebase, so I need to go back and figure out how the hidden row's text position and vertical center are actually computed in front.lua, looking at how x and y offsets differ between wide and narrow layouts.

I think the cleanest fix is to add a new function, `front_hidden_text_at(el)`, modeled on `front_row_lock_at`, that returns the text's x position and mid-y relative to the element's y. To write that correctly I need to check `draw_row`'s computation of `ty` and look at the `fonts()` function in front.lua.

For the narrow layout, I'm confirming the text position stays at el.x for the title line with the date rendered below, keeping it consistent with my helper's calculation. I'm also double-checking that references to the element's fx state get updated consistently across the drawing function.

Clearing works for el too, and even once effects fade out with large t, draws still route cheaply through unlock_fx_row since rec._fx_m persists. The FRONT doc rebuild handles el objects fine, with old[] mapping for rec rows and the hidden row's el being reused. Now I'm checking scrolling behavior.

I need to lock scroll input during the effect — wheel, keys, scrollbar drag, touch, and the follow logic that cancels if the user scrolls manually. I'm defining a helper that checks whether the unlock effect is active, locking from the moment the egg arms through the end of the run, since the "final effect" shouldn't allow scrolling at all, including the gated wait before the run actually starts. I also need to account for the hosted game capturing the wheel separately, and I should grep main.lua for the site's scroll input handlers to find where to hook the block in.

I need to trace where the wheel delta actually drives the scroll position, then figure out a clean way to lock scrolling: capture scroll_y at the start of the update cycle, and if the unlock effect is holding the scroll in place, restore that snapshot at the end before any clamping happens, rather than fighting with wherever unlock_fx writes its own scroll target.

Restoring scroll_y naively would clash with legitimate scroll adjustments like the anchor fix during front_update, causing jumps. It's safer to block scroll changes right at their sources—wheel, keys, page keys, home/end, scrollbar drag, autoscroll, and touch—so I need to grep for where wy actually gets applied to scroll.

I'm confirming unlock_fx_update runs before input handling, and writing the logic so that once the egg effect is armed through completion, main.lua blocks all reader scroll input—wheel, keys, scrollbar, touch—so the animation itself has sole control of scrolling.

But I'm reconsidering: locking during the entire armed phase is risky since a web unlock involves a server round trip that could take up to 20 seconds if refused, and the reader shouldn't be stuck unable to scroll that whole time. Letters don't actually exist until the run starts, so I'll scope the scroll-lock to only while the run is active, releasing it once all pieces finish and the timer completes—leaving the pre-armed and death/egg-knock phases unlocked since those weren't part of what was asked.

Now I'm wiring this into main.lua: computing a fx_scroll flag from unlock_fx_holds_scroll and zeroing the wheel delta when it's true, then threading that same guard into the keyboard scroll handlers, the scrollbar drag code, and the touch-drag handler so none of them move the page while the unlock effect owns it.

I need to verify fx_scroll's scope actually covers all these later usage sites, which means checking the enclosing update function's boundaries to confirm it's all one continuous function rather than split across multiple definitions.

The locking logic for follow-mode still holds since the old "scroll of his own" check no longer applies without manual scrolling. I'm now considering whether wheel events over the game during the effect should pass through to the game itself via wheel_through.

Next I need to verify the full flow again: once Released is set in the admin post, re-run the probe to confirm the hidden row fires its moment, plays burst sounds, doesn't draw a lock, and keeps scroll blocked while follow mode stays true during the run. For the Released field value, since the actual public release date isn't known yet, I'll use a placeholder date like today's and flag it as something to revisit, since there's no automated step yet that sets this when a post goes public.

I'm checking whether the cache version bump triggered a full reconvert, and want to confirm data/index.lua didn't change unexpectedly since that directory is gitignored. I also need to update the probe to verify the hidden row's timing, confirm no lock is drawn while scroll is held, and check the game row's displayed date against the front-end.

The game row shows "Oct 15, 2026", so I'll compute the proper timestamp for it in the probe and verify its position directly above the row for post #560. I'm adding probe checks for the pre-click row index and next slug, and looking into which input injection function supports mouse wheel events.

Since there's no wheel injection available, I'm considering testing with key presses instead—injecting "end" to trigger go_end, which should jump scroll to max unless the lock is active, giving a clear pass/fail signal. I need to check which key names are actually bound to that action.

The max_scroll variable being local should just print nil safely with tostring, and the sound filter logic for row-indexed events looks like it calls through game_host_call correctly enough. Let me just run it and see.

The game row shows the right date and sits correctly above row #560, confirming the ordering. Checking the keys during the run - End and PageDown don't jump out of the run's own rise, and after the run finishes, navigation works normally again, so the follow behavior holds true throughout.

The hidden row during the run fires its moment properly: letters land, burst and sweep play, no lift, and crucially the draw check correctly skips rendering for bare rows even though the state is seen as true. Other per-frame calls like the unlock check returning nil:nil are irrelevant noise.

I want to visually confirm the hidden row's burst looks right, so I'm setting up a quick frame capture around that moment in the run — sampling every few ticks over the last second and a half to build a small contact sheet, just to make sure no lock icon appears and the burst placement looks sensible.

All three fixes verify on desktop: the date displays correctly above #560, End/PageDown are properly disabled during the animation, and the hidden-logs line now animates without the lock icon. Next I'll capture the hidden line's moment to visually confirm it looks right.

I'm figuring out how the OUT global was set in film_probe, and considering defining it before calling dofile on the hidden script so the file system access works correctly.

Also thinking about memory constraints — the agent likely renders at 1920x1080, and with headless rendering one frame at a time, around 30 frames of that resolution should be manageable.

The burst around frame 87 corresponds to roughly frame 29, so I want to crop the top region of that area, under the nav bar, scaling frames 24-40 down and cropping to the top ~260px to find where that hidden row sits.

The hidden row's burst animation matches the pattern of the others—letters land, then the row flashes with a warped ring and sweep effect, with the spectral line underneath and no lock state, originating near the id column position. The row below flashing separately is its own distinct burst, which is fine. Now I'm shifting to the remaining major task: checking game loading behavior.

I should verify the modified Lua files parse cleanly—main.lua, front.lua, unlock_fx.lua, works.lua, book.lua, tagpage.lua, convert.lua—using loadfile, and they all loaded successfully in the desktop instance. For game loading itself, I'll hold off since the agent is handling game_host's fetch logic and I don't want to duplicate that work; I'll check back once it reports results. The nginx gzip config for the games data path is outside the agent's scope, so I'll look at that separately myself.

The hidden-logs line now unlocks the same way the posts do—letters land, then the row triggers the glass burst, warp sweep, and spectrum line with no lock delay. While the load map finishes, I'll check how the server compresses the game's files.

I notice the admin data route is gzipped from 78 to 29 MB but marked "private, no-store," so every single visit re-downloads nearly 30 MB with zero caching — that's a real cost on repeated loads. The public release will presumably serve game files from a cacheable /data/ path, but the admin version's no-store header forces a full refetch each reload, and gzipping those 12 MB float files on the fly also burns CPU on the VPS at default compression level. I should check how fast the VPS link actually is.

With roughly 29 MB downloading in about 60 seconds, that's only ~0.5 MB/s, which feels slow — likely dominated by latency rather than bandwidth given 797 separate files and an 8-in-flight limit. If the RTT to the VPS is 150-200ms, that's roughly 100 rounds of requests at 0.25-0.4s each, adding up to 25-40 seconds just from round trips, meaning file count and latency matter as much as raw bandwidth. Bundling small files into a few packs per group could massively cut down request overhead, and I'm thinking through options: a minimal boot set loaded first with the rest fetched in the background by priority, packing many small files into single archives unpacked into the virtual filesystem (which would need some kind of write-file API exposed to the engine), or simply raising the concurrency limit beyond 8 inflight requests.

Raising concurrency could help since the browser multiplexes over HTTP/2/3 even through the Cloudflare proxy, but I worry it could starve other posts loading concurrently since they'd have to queue — unless I add fetch priority. I should hold off designing further until I hear back from the agent on the game's load order; for now I'll commit the three site fixes I already made (front.lua, main.lua, unlock_fx.lua, works.lua, book.lua, tagpage.lua, and the admin/convert tooling) without deploying yet.

While waiting, I could use a cheap curl timing request against a small public file to measure actual RTT to the VPS through Cloudflare, though his ISP sometimes blackholes CF IPs so it might not work.

I found the game's assets are gzipped (~29MB) but cached as `no-store`, forcing all 797 files to re-download on every visit, 8 at a time. I'll now measure the site's round-trip latency, since with this many files it matters as much as bandwidth.

I'm looking at the load times across these endpoints — the index data loads fast from cache around 0.6s, while the renderer bundle transfers at roughly 2.5 MB/s, though the admin endpoint seems to be rendered fresh at origin each time rather than cached.

Actually that no-store TTFB of ~0.6s per request times 797 requests divided by 8 parallel connections lands right around 60-80 seconds — so request latency, not bandwidth, is the real bottleneck here. The fix is clear: bundle files into fewer packs, increase parallelism, and lazy-load boot assets, which should cut load time down to roughly 12-15 seconds total. Now I need to check whether the engine's web file APIs support fetching a pack and splitting it into the virtual filesystem, and whether Lua can write files directly or if there's some way to read pack data without going through the normal file functions.

Found the bottleneck: each of the 797 files takes ~0.6s to first byte with no caching, making 8-at-a-time fetching take about a minute, while bandwidth itself isn't the issue. I'll look into what the engine supports for consolidating file requests and bundling a smaller boot set.

With a ~0.6s TTFB and only 8 requests in flight, fetching all 547 boot files individually would take roughly 40 seconds — way too slow. I need to pack files into bundles so game_host can fetch fewer, larger requests instead of hundreds of tiny ones.

But writing split-out files into MEMFS raises questions about whether directories exist and whether file_write_string even works there on web. Instead, I'm realizing I could avoid filesystem writes entirely by intercepting the shadowed file_read_string call and serving file contents directly from an in-memory table of substrings extracted from the downloaded packs — though I need to check whether holding ~93MB of strings in the Lua heap is actually viable.

But sound_load and texture_load read straight from the filesystem rather than through Lua strings, so those calls still require MEMFS paths to exist, and require() uses io.open/loadfile which also hits the real filesystem. Since texture_load is only used for a dozen small PNG icons, I can just keep those as individual files or baked into the boot pack, while sound_load might need a from-memory API if one exists — otherwise MEMFS writing with proper directory creation becomes unavoidable for the general case.

I'm trying to recall whether emscripten_async_wget automatically creates parent directories when writing nested paths, since that's the mechanism making nested fetches currently work without an explicit mkdir.

Modifying anchor.c to add proper directory creation would mean rebuilding and redeploying the web engine itself, which is heavier since engines are pinned by hash — I'd rather avoid that if there's another way to sidestep MEMFS writes entirely.

I can serve most reads straight from memory instead: binary assets and GLSL programs can be shadowed through the loader's read function, Lua modules can go through env.require loading strings directly from the pack rather than using loadfile, and sound/texture data can be routed similarly if the engine supports loading from memory — I need to check whether sound_load and texture_load accept in-memory sources.

The load map confirms it: everything, including the 63 MB of click-only objects, gets read at boot, and per-request latency (not bandwidth) is the real bottleneck causing the delay. Now I'll check whether the engine supports loading sounds and textures from memory, since that determines how files should be packed.

I need to verify whether dir_create is actually present in the deployed wasm build, not just the current source—checking when it was added relative to the build commit. If it's there, the approach works: read the pack file, split it into parts, recursively create parent directories, then write each file so everything exists in MEMFS.

I'm tracing whether dir_create is exposed to hosted games through game_host's Lua environment, and checking if emscripten's in-memory filesystem writes are visible to web_file_status's fopen check on the same path.

Packs fetched via emscripten_async_wget land in MEMFS at their URL path, and after unpacking I should remove the pack file to free memory since os.remove works fine there. I'm also weighing nginx's on-the-fly gzip for pack files versus pre-compressing them with gzip_static to save VPS CPU and get stronger compression.

But data/admin is marked private/no-store, so every visit re-downloads everything uncached — I need to figure out real origin bandwidth rather than relying on edge-cached speed tests, which means trying to fetch a large file with a cache-busting query param to force an origin hit.

For the actual fix, without touching the engine or game structure, I'm thinking of extending pack_games.py to bundle lich-survivors files into priority-based packs — starting with a boot pack containing all the Lua scripts, picks/rooms, and programs needed at startup, since the warm-up compiles everything anyway.

Adding up the raw sizes of the boot-critical assets (Lua, cave, statics, lich textures, orbs world, and the sound files), I'm getting roughly 23.7 MB raw, which compresses to maybe 12 MB gzipped — at typical throughput that's about 6 seconds, not instant. I need to figure out what's truly required for the first rendered frame versus what can load after.

Splitting it into two stages makes sense: a lean boot pack with the Lua scripts, cave scene, statics, and icons (~7.3 MB raw) that renders the cave and egg with UI immediately, while a second "lich pack" containing the lich sprite, orbs, and early sound cues streams in afterward — with the walk-in interaction deferred until that pack arrives if the player clicks too soon.

Beyond that, I realize the game's boot code currently reads the lich, orbs, items, and sounds synchronously at creation time, so making them lazy requires actual code changes: item world instances and inspect/icon rendering need nil-guards so they can be deferred until their files exist, and since the icon renders are apparently unused in the hosted build anyway, I can likely skip them there entirely.

For the lich specifically, laziness is riskier since many modules reference it right after creation — but since the walk-in gate already waits for the first click, I could defer lich loading until its files land, though that means the cave only appears after both the boot pack and the lich pack finish. I consider whether compressing the lich's raw mesh data (240 files, f32 positions/normals/uv, u32 indices) to f16 would help, but that risks visual changes, so I rule it out. Instead I start sketching a simpler staged loading plan: Stage A as the required boot bundle containing Lua, picks, programs, and the cave.

Adding up the raw sizes across statics, lich, the orbs world, and icons gets me to roughly 21.6 MB, and since f32 float data only compresses modestly while text compresses well, I estimate the gzipped payload at around 15 MB — which at typical throughput would take several seconds plus TTFB, not an instant load, so I need to check actual origin throughput before assuming this is fine. I also consider quantizing normals to shrink the lich further, but that risks breaking bit-exact rendering tests tied to the digest checks, so I move on to look at the orbs' 6.4 MB footprint instead.

The orbs could simply stay hidden until their cube texture finishes loading rather than showing an ugly placeholder, which would be a small change to the item-spawning game code to make them lazy-loaded. A cleaner overall fix might be showing a title/intro screen while the boot pack loads, covering the remaining load time after packing reduces requests from ~800 down to around 6 — so my plan starts with building a pack_games.py script to bundle assets into pack files plus a manifest.

Then on the host side, when a game's manifest lists packs, I'd fetch them in stage order, unpack into MEMFS, start the game once "boot" stage files are ready, and keep loading the rest in background. The game itself also needs to tolerate late-arriving files — sounds can lazily reload via a pcall around sound loading with a cheap polling check for missing files, and I'm now thinking through how item loading should handle the same situation.

Icon renders are irrelevant when hosted, so I'd skip those and build worlds for objects only once their files exist, gating remove actions until ready. Everything else just loads normally during boot — which keeps the boot payload down to roughly 23.7 MB raw by excluding the heavier sounds (16 MB) and items (57 MB) sets. For the intro screen, I'm picturing the game_host drawing the game's title centered with a simple progress line while boot packs load, saving fancier styling for later. I also want to measure origin throughput for uncached content so I can estimate realistic boot times.

Good news—the web engine already supports `dir_create` and `file_write_string`, so I can fetch large packs and unpack them into the in-memory filesystem without changing how the game reads files. Now I'll measure the server's real throughput on uncached content to size the boot pack correctly.

That search came up empty, and the homepage fetch wasn't helpful either. I spotted the actual renderer data file name in the deploy log, "renderer-89f73ed0dc.data", a 4.7 MB file, so I'll fetch that directly with the ?r parameter.

Comparing uncached origin speed (~3.5 MB/s overall) versus cached CF edge speed (18 MB/s, near-zero TTFB) on the same network as his PC, so these numbers reflect his actual conditions. A 12 MB gzipped boot pack from origin would take roughly 0.6 to 2 seconds depending on which measurement I use.

Total transfer of all 29 MB of gzipped packs would run about 5-6 seconds in the background, though if packs could be cached at the CF edge with immutable content-hashed names (public release scenario) it'd be near-instant — but for now admin data is private and not edge-cacheable. I'm thinking splitting the boot pack into 2-3 parallel ~4-8 MB chunks could help via HTTP/2 multiplexing, fetching 3-4 in flight to boost throughput.

Browser-side costs seem minor — unpacking into MEMFS and reading strings should be fast — but shader compilation at boot is a real bottleneck, taking ~4.6s on web versus ~0.4s on desktop, causing a noticeable page freeze.

That freeze breaks the "playable immediately" goal, so I'm weighing options: skip the warm-up entirely and let programs compile lazily on first use (causing 50-100ms hitches per effect the first time it's drawn), or spread compilation across frames during the intro walk-in (~6s before the player can click), compiling the first-frame-critical programs immediately and warming the remaining ~30 at roughly one per frame, which would produce ~90ms hitches per frame for about 3 seconds of choppiness before the player even interacts.

Rather than guessing, I should actually measure this using the webbench tool, which runs the game headlessly in Chrome from file:// and can time boot phases like GM.create and warm-up. I'll plan this in two phases: first, packing and staged fetching with an intro screen covering the background load; second, making sounds and items lazy-loaded so they're excluded from the boot set, skipping icon renders when hosted, and spreading out the program warm-up. To start, I want to look at the relevant code in game_host.lua -- game_files_ready, start_instance, the loading text draw -- along with pack_games.py.

At ~0.6s latency and ~6MB/s throughput, the gzipped game (~29MB) could load in ~5s, or ~2s for a third-sized boot pack. I'll now review the game host's fetch code and the packaging tool to implement that.

I'm checking the sync tool that generates the lich-survivors admin tree from the game folder, and thinking about where pack/stage assignments should live—likely a config file within the game folder itself that pack_games.py reads to map stages to globs.

I'm extending the manifest format to add a `packs` field listing each pack's name, file path, stage, and table of contents, while keeping game_host backwards compatible with existing manifests. The pack content itself is just concatenated raw bytes with the manifest serving as the index, and I'm naming pack files with a content hash to avoid cache collisions—though I still need to decide whether individual mirrored files should stay alongside the packs for desktop reading.

I'm thinking through deploy mechanics: keeping both individual files and packs synced (adding ~93MB per changed pack), making sure prune() preserves pack files in its keep-set, and how game_host will unpack a pack into MEMFS so file reads resolve correctly. I still need to work out how the game determines a file is "ready" in pack mode versus triggering individual fetches for files that belong to a pending pack.

Now I'm figuring out staging priorities — what needs to be ready at boot versus shortly after — and want to compute actual gzip sizes per asset group to decide how to split them, accounting for nginx's default gzip compression level.

I'll build a `pack_games.py` step that bundles files into staged packs listed in a manifest, so the host fetches a few packs instead of 797 files, unpacking the boot pack first to start the game while the rest streams in. Next I'll measure compressed sizes per group to size the stages.

Right, bash heredocs mangle backslashes, so I should avoid that pitfall and instead write the script directly to a file using the Write tool.

Recalculating the gzipped total at around 48 MB rather than 29, and tallying the boot set without items and sfx — lich, cave, programs, lua, statics, and ui — which comes to roughly 6.0 MB gzipped, before adding the orb assets.

At about 6 MB/s download speed after a 0.6s initial delay, boot takes roughly 1.6-2.1s depending on whether orbs are included, while sounds and items load in the background over 7-8 seconds total — fast enough to feel "near immediate." There's also a ~4.6s shader compile freeze at boot that needs measuring separately.

This points to a concrete fix: sounds need to load lazily, with the game booting without sfx files and audio.lua tracking missing sound slots to retry loading once the files actually arrive, prioritizing ambient loop, ripple, and click sounds first.

Items also need lazy loading — items.create currently builds all six world instances at boot including PMREM icon renders that aren't even used in hosted mode (UI just uses ember PNGs). The fix is to build only the orb's world at boot and defer the other five until their files are ready, polled during the items update loop, with inventory clicks on not-yet-ready items either ignored or queued until loading completes — which should be fine in practice since the intro sequence already blocks clicks for several seconds after boot.

I also need to worry about bit-exactness: if make_world draws from game RNGs, delaying creation could shift the RNG sequence and break determinism versus replays. But since lazy loading only applies in hosted mode (gated behind the HOSTED flag), desktop builds stay untouched and their digests remain unaffected — I just need to be careful to preserve the exact old behavior on desktop.

Now I'm thinking through other concerns: warm-up costs for programs on web (should measure via webbench first), boot sizes for lich and orbs, and the web_images_dirty flag that triggers canvas repreload every 0.25s — with packs, only a handful of files land so this should stay manageable. I also want to check how many packs get fetched concurrently, maybe prioritizing the boot pack alone first.

I'm worried about memory duplication since each pack gets copied into MEMFS, then into a Lua string, then written out — tripling transient usage, so for a 63 MB items pack that's roughly 189 MB temporarily. To keep this manageable I should split items into smaller per-object packs (~10 MB each) and split the viewer's PMREM data separately, then make sure to delete the pack from MEMFS and clear the Lua string reference right after unpacking to free memory promptly.

Given that game_host's GC is allocation-paced rather than fully stopped during gameplay, these large garbage strings should actually get reclaimed reasonably quickly rather than lingering.

But to minimize peak memory further, I'm considering reading each pack file piecewise using io.open with seek and read per entry, since Lua's io library works against MEMFS — that way each string allocation is only as big as the individual file rather than the whole pack at once.

I confirm io is available on the web build since the hosted environment's require already relies on io.open and loadfile there. Given write times for 63 MB into MEMFS, I should spread unpacking across multiple frames, extracting a few megabytes per frame, to avoid stalling gameplay.

For readiness, I'm thinking through how the game checks file availability — game_file_ready(path) looks at the host's presence table in pack mode, checks web_file_status in non-pack web mode, and always returns true on desktop. Then downstream, audio.lua's reload logic should skip loading files that aren't ready yet to avoid error spam, mark those slots incomplete, and periodically recheck so it can reload and restart loops once files arrive — and items.lua needs similar lazy-loading treatment for world objects that aren't ready.

I also need to gate game.lua's icon rendering, inspect.create, and ask_remove when hosted, and make sure loader.lua's read() is only called once a file is confirmed ready since it asserts on missing files. Next I want to actually dig into the relevant code sections — items.lua's create/make_world, inspect.create, specific line ranges in game.lua, audio.lua's update loop, and game_host's make_env where I'll add game_file_ready.

The gzipped core boot set is ~6MB (~1.5s to load), so I can stream in the larger objects (26MB) and sounds (16MB) afterward if the game boots without them first. I'll now check the item, viewer, and sound code to make those parts wait on their files when hosted.

I'm examining how w.g is built eagerly and used throughout the code for positions and visibility toggles each frame—since touching every usage is risky, I'm considering swapping in a placeholder empty group until the real one is ready, then transferring its transform once it is.

For orbs, I'll keep them built at boot since they're derived from existing children and already ready. The set_hand_material function loads color and aMR texture variants and gets called both at creation and later via opts.hand_mat, so I could defer that call until the item is actually ready.

I want to understand the overall size and structure of the items module closure before going further, so I'm checking line counts and scanning for where w.g and the material setup (X.mats, including texture loading) actually happen.

I'm noting that materials are built lazily through the loader group, with geometries and textures read on demand and cached. Since I can't easily predict ahead of time which files a given world build will need, I'm considering wrapping the loader's read function to track accesses dynamically instead.

For hosted lazy mode, a missing file could raise a specific "NOT_READY" error, letting make_world retry inside a pcall rather than enumerating paths upfront. Partial construction seems safe since the loader caches per-key successfully, failed groups aren't added to the scene, and GPU resources (geometries, textures) only get uploaded for files that actually loaded — though I still need to check whether a failed read triggers a fetch request on web via the shadowed file_read_string path.

Rather than brute-force retrying make_world every half-second (which re-does builder work wastefully), I'd rather gate on readiness more precisely — exposing `game_file_ready(path)` for per-file checks and `game_pack_ready(name)` for checking whether an entire named pack has been unpacked, with both defaulting to true in desktop/no-pack mode. The game would declare its packing plan (names and file globs) in something like `site_packs.lua`, giving a clean contract between host and game for sequencing fetches.

For items specifically, I'm bundling world instances plus viewer-related assets (PMREM, cubes, inspect geometries) into a single 'items' pack, loading order being boot assets first, then sound effects, then items last since they're only needed on click-to-inspect — worth the roughly 4.5s savings from deferring ~26MB. The lazy-loading approach creates empty placeholder groups for not-yet-ready items (since they start hidden anyway), marking them pending until their pack unpacks.

I'm now checking the per-tick update logic that swaps placeholders for real world objects once the pack is ready — copying transform/visibility state, removing the placeholder from the scene, and clearing the pending flag — while also verifying no other code holds stale references to the placeholder's children, especially since item index 2 needs its hand material set before the real object is constructed.

Removing an item via THROW needs a readiness gate in game.lua so a request queues if the item isn't ready yet. I also need to check whether the inspect viewer should be lazily created only once the items pack is ready, skipping icon rendering in hosted mode since the UI relies on static ember PNGs instead, and verify this against the relevant game.lua sections before committing to the change given the time budget.

I'll set up a clean contract where the game declares its packs and the host exposes `game_pack_ready(name)` and `game_file_ready(path)` checks, both always true on desktop so nothing breaks there. Now reading the game's create and slot-click code to hook in the late packs.

Let me check how icons are used — if UI.S.icons is 'ember', the icons table might go unused, so I need to confirm where `icons[` is referenced in game.lua or the hud code.

Since `inspect` is captured as an upvalue shared across closures, I can defer its initialization and assign it later inside tick, and that update will be visible everywhere it's used. The same trick should work for `items`, though I need to think through whether items like orbs need to exist at boot time.

For the hosted case, I'm planning to make items.create accept a `late` flag so the five hidden world objects are built lazily once a streamed asset pack arrives, with inspect similarly deferred until the pack lands and then assigned inside tick. The tricky part is ask_remove: if inspect isn't ready yet, I can't just fall back to toggle_power since that would remove the item without ever showing the viewer — instead I need to queue the request as pending_ask when running in the lazy/hosted mode, and only trigger toggle_power when truly not using the lazy path, then open the pending item once inspect becomes ready. I also realize the item and inspect viewer become ready at the same time since they're both part of the same unpacked pack.

I'm now checking that items.update runs before inspect gets created in the tick so ordering doesn't break anything, and confirming the icon line degrades gracefully when inspect is still nil during the hosted lazy window by just leaving icons empty and falling back to the default PNG. I also want to verify the hit('i') and hand-material code paths are unaffected since those only run outside the hosted branch. Next I need to check how IT.update decides whether to position an "away" object, since the hidden placeholder items shouldn't be rendered or moved until they're actually dropped or thrown — so I'm tracing where `w.g` is referenced to understand how visibility state is handled.

I'm realizing there's already a rebuild function that swaps a group with a freshly made one while preserving visibility, position, and quaternion, so the lazy-loading approach can create placeholder groups first and call rebuild once the asset pack is ready. I'm now editing items.lua to add a comment explaining why objects load lazily after game start, since the site hosts object packs that arrive after launch and the owner wants immediate playability.

I'm wiring up the per-item wait flag based on whether the item has balls and whether we're in the late-loading context, setting late = true on the wait placeholder, then checking in update() each frame whether the pack is ready so I can call rebuild on each waiting item -- being careful about the index offset since rebuild uses 0-based indexing into the W array.

I should check whether items.update actually runs during every game phase, since lazily constructing five objects at once could cause a frame hitch, though geometry building from blobs and texture uploads should be cheap enough. Materials seem to load their textures on demand through the builder, so next I want to look at how audio handles lazy loading in load_picks/reload/update.

I'm confirming that declaring `rebuild` as a local before defining the function keeps the assignment scoped correctly, since `set_hand_mat` calls it afterward. Now I want to verify the variant-reading logic for `set_hand_material` only triggers under the right conditions.

Shifting to game.lua, I need to figure out where to place the lazy inspect creation within the tick function — it should go near the items.update block since items.update might not run in every state, but I need to check the tick structure around lines 940-1000 to avoid conflicts with early returns like inspect_active's tick exit.

I'm checking that G is defined before make_inspect uses it, which it is. But calling items.update with dt=0 alongside the normal update flow worries me—if any physics calculation divides by dt, that zero could cause a problem.

A safer approach is to pull the late-initialization logic out of update into its own `make_late()` function, called once at the top of update and exported so game.lua can invoke it directly instead of faking an update call.

I'm checking whether inspect.create relies on the items' world data, but it seems to build its own scene from view instances using assets already in the items pack—so that's fine. I'm also confirming no other boot-time code reads item files besides the manifest load at module initialization.

I should verify whether LD.group reads any binary data at group creation time or loads lazily, so I want to check the loader module in port/three to confirm.

I'm figuring out which assets the orbs world actually needs — geo_3 and cube_0, per the agent's mapping of make_world(4), rather than hardcoding file lists manually. I want the pack plan to include exactly those two in boot, not extra textures like tex_1.

Instead of guessing, I'm thinking of verifying this empirically: run the hosted game inside the desktop site with a simulation flag that mimics pack arrival timing, then wrap the file-read function with a probe to log which files get read before their pack is supposedly ready. This would catch any case where a file outside the boot pack gets accessed too early.

Then I'm sketching how the game would declare its pack structure—a config file listing pack names and the path patterns matched to each, with 'boot' containing core lua files and essential assets, 'sfx' for sound files, and 'items' for the rest. I'm double-checking the pattern matching catches all lua files correctly, including ones nested under subdirectories like items.

I'm figuring out which early sound effects (cave ambience, shaft hum, leak ripple, UI click) need to load quickly, and whether to bundle them into the boot pack or a small separate ambient pack that loads right after boot—since the sounds restart cleanly in place even if they arrive slightly late. To find exactly which files back those sound slots, I'd trace through sound_picks.lua mapping slot names to their layered audio files.

I see the files can live at the top level or inside layers — the ambient pack pulls together cave and ripple sounds plus UI clicks, while shaft_hum has no actual files, just candidates, so it stays silent. Now I need to look at audio.lua's load/reload/update functions to wire up lazy loading through game_file_ready.

I'm wondering whether sound_load's relative path gets shadowed by game_host to resolve against the game directory, and whether on web a missing file would trigger a fetch attempt or just fail silently when fopen can't find it.

Writing reload logic...

I'm having A.update periodically check waiting slots every quarter second, reloading once all their files become available — since packs tend to arrive together, this check is cheap even across dozens of slots. I'm also confirming s.files already contains the full layer file list, so no separate source is needed, and noting that sound_load calls elsewhere look fine before moving to the game host side.

I need to read make_env and the shadow functions like file_read_string, sound_load, and texture_load, along with how GAME_HOSTED and related flags get set around lines 200-330 and 440-470.

I'm wondering whether game_file_ready is accessible as a global in the hosted game's environment, since on desktop it would be nil and here() would just return true. I also need to check whether A.update actually runs every frame before the walk-in, since an early return in tick (like EGG_WAIT) might skip it—I should trace where A.update is actually called from.

Beyond that, I'm thinking about boot.lua's warm-up step that compiles all 53 program keys from the boot pack, and whether the shader compile time on web (previously around 4.6 seconds total) needs remeasuring now. Let me look at boot.lua directly.

I'm thinking about shader compilation overhead at startup—roughly 0.4s on desktop versus maybe 4.6s on web—and considering whether spreading compilation across frames could help. Since program compilation is a synchronous engine-level call (compiling and linking shaders, which is especially slow with ANGLE on WebGL), using something like KHR_parallel_shader_compile for async compilation would require deeper engine changes, which I want to avoid.

Instead, for web, I'm considering warming only the programs needed for the first frame at boot (since those compile lazily anyway on first draw), then compiling the remaining programs one per tick in the background while the player waits—accepting small hitches during that early window as a reasonable tradeoff for faster perceived load time. To validate this, I want to check the webbench tooling to see if I can measure actual boot time by tracking performance.now() from page load to first rendered frame, so I'm looking at how run.mjs is structured.

Shader compilation for all 53 programs takes ~0.4s on desktop but ~4.6s on web. I'll check if the web benchmark page can time the boot process.

Since the webbench runs standalone with everything in MEMFS, I'm thinking I could add timing prints to boot.lua to measure boot phases, since os.getenv probably won't work reliably on web, so the print statements would just always fire cheaply.

I realize I can gate this on whether the bench module detects a 'bench_on' file written into MEMFS when the benchmark is active, so timing output only appears during actual bench runs. I'd measure phases like pre-create setup, GM.create, tick, and warm-up, printing a prefixed "BENCH boot ms" line that the page can parse out from console output.

Rather than running the full webbench baseline now (which takes time to rebuild the page), I'll defer that and first implement the game_host packs work, then test hosted-specific behavior like packs on the desktop site simulation. Next I want to look at game_host.lua around lines 195-330 and 440-470 for env and shadow handling.

Now I'm designing how game_host's manifest should capture pack metadata — extending the existing file list with a packs table that records each pack's name, file path, byte size, and per-file offset/length entries within that pack.

For the runtime side on web, I'm thinking through staged pack fetching: fetch boot-flagged packs first (limited concurrency), then unpack them by seeking into the pack file for each entry and writing it out to disk, budgeted per-frame to avoid blocking. After boot packs are unpacked the instance can start, while remaining packs continue being pumped in the background via a per-frame update hook, with helper functions to check whether a given pack or file is ready.

I also need to handle directory creation incrementally (caching which dirs already exist in MEMFS) and confirm how file_write_string actually writes bytes on web -- checking the anchor.c implementation to see if it's a straightforward fopen 'wb' to MEMFS or something else.

Plain fopen works fine on MEMFS. There's a subtlety with web_file_status caching per path — if something checks status on a game file before it's unpacked, it'd trigger a redundant but harmless wget, and status would resolve to ready once fopen succeeds afterward.

I'm also thinking about race conditions where an in-flight wget finishes after we've already written the file — harmless since content matches. I need to budget the unpack across frames so it doesn't stall, spreading writes to avoid blocking, then remove the pack file once done and let GC handle cleanup proportionally. Finally, I should check how the loading card displays "loading game x/y" progress using game_host_loading, tracing through elements.lua and main.lua to see how that text gets rendered.

For the pack-loading screen, I'd rather show the game's title centered with a thin progress bar beneath it than a generic "loading x/y items" message, since boot time with shader compilation is only a couple seconds — simple and clean is better here. I'm heading into elements.lua around line 3890-3920 to look at how the card currently draws that loading state.

I'm planning a shared draw helper that renders either the loading count line or, for pack mode games, an intro screen with the game's title — figuring out where that title data would come from, since the game def only has a name but the post entry has the actual title.

To store this, I should check how admin_items.lua registers GAME_DEFS entries and add `def.title` there.

I'm realizing desktop builds also treat game_host WEB as true wherever web_file_status exists, so desktop goes through the same game_files_ready check using fopen to verify files exist in data/admin/games on disk.

This is risky for pack mode: if packs already exist on disk, the unpack path would still fire, overwriting those same bytes wastefully and even calling os.remove on them. I need to detect real web versus desktop properly, likely by checking a `platform` global, so I'll grep for `platform ==` usage in the renderer to confirm.

I'm thinking pack mode should only apply when the platform is web, with desktop continuing to read individual files directly and having both readiness flags default to true. The challenge is that desktop can't easily test the pack pipeline, so I'm considering a simulation mode triggered by an env var that runs the pack pipeline on desktop but unpacks into a scratch directory—though that's complex, so I'm also weighing a simpler delay-based simulation instead.

Actually testing the real web pack pipeline in headless Chrome seems blocked: webbench fails all network requests to avoid hitting the download manager, so there's no HTTP serving of packs. I'm wondering whether webbench could instead fulfill requests via CDP's Fetch.fulfillRequest rather than failing them, since the download manager issue stems from a browser extension hook that likely wouldn't load in a fresh headless profile anyway.

Given the complexity of standing up the full web renderer though, a simpler path is simulating pack unpacking on desktop directly — have the game host unpack packs into a scratch directory and redirect the game's def.dir there, so file-ready checks reflect the real unpack timing without needing the browser at all.

Since the scratch directory starts empty, this actually becomes a genuine test of staged readiness: any read of a file not yet unpacked will fail, faithfully mimicking the empty MEMFS state on web, and I can even add simulated per-pack delays. The implementation hinges on introducing a root path concept in game_host — distinct from def.dir — that determines where files are actually read from, defaulting to def.dir but swappable to the scratch dir for simulation.

I need to make sure every env function (gp, require, start_instance's loadfile call, texture/font loading shadows) consistently uses this root instead of def.dir directly, so I should grep for all def.dir usages in the file to catch every spot that needs updating.

Pack mode must stay web-only since unpacking on desktop would overwrite real files, so I'll simulate it by unpacking into a scratch folder and running the game from there—mirroring the web's failure behavior when a file is read before its pack arrives.

I need to add a game_host concept of a root directory for file reads: for web pack mode this is the MEMFS def.dir, while for desktop simulation it's the scratch directory. That root then gets wired into io.open in env.require, texture loading, and font loading. The separate io.open call used for bench_on just reads relative to the actual working directory, so that one's unaffected.

Now I'm sketching the packs system: games with large manifests of files get a PACKS declaration so instead of 797 tiny files costing a minute to load, they're fetched as a few large archive blobs at much higher throughput, with the first one unpacked before the game starts and the rest streamed into MEMFS while it plays, exposed to the game via game_pack_ready/game_file_ready checks.

Writing manifest format...

Still writing pump logic...

Still writing fetch logic...

For loose fallback I'll limit it to web since root equals dir there, so files land directly at root/path and status checks work cleanly; desktop sim never actually fails so it doesn't need this path. For directory creation, I'm splitting each path by its segments and creating any missing prefix directories under root, tracking what's already created to avoid redundant calls.

Rather than regenerating a fresh timestamped directory each run and leaving garbage behind, I'll reuse one fixed scratch directory and just delete the known manifest files before starting, leaving it effectively empty without needing recursive removal.

For the loading progress display, I'm thinking through how to represent pack-mode boot progress using ready/total byte fields and a packs flag, since actual in-flight download progress from wget isn't directly knowable.

Given that granular progress isn't available for a single boot pack, I'll keep the intro screen simple — just the game's title centered in the site font, possibly with a slow breathing alpha pulse, and skip any progress bar. After the pack unpacks, start_instance runs, including the synchronous shader compile which will freeze the page briefly while the intro stays visible. I still need to figure out where the title comes from, since the game definition itself lacks one — probably pulling it from the post title in admin_items.

Now I want to trace what happens after start in game_host_update, so I'm going to look at lines 760-900 of game_host.lua to find the per-frame pump logic for a started instance.

I'm implementing the host-side pack pump—loading the boot pack first, then the rest two at a time with a per-frame unpack budget and single-file fallback—and now checking the host's per-frame update loop to wire it in.

I'm adding a pump call right after the start block so pack loading continues even when not visible, then restructuring the pack section so game_files_ready dispatches to pack mode when the manifest has packs on web or simulated environments, including a desktop simulation path via an environment variable.

I want the sim to mimic realistic network timing — treating each pack as "ready" only after a time-to-first-byte plus a bandwidth-based delay, using an accumulated host clock updated each step rather than relying on real wall-clock time, so it stays deterministic.

I'll write all these game_host changes as a patch script file rather than inline heredocs, to avoid escaping issues.

I'm checking that my new logic preserves the original behavior where desktop builds treat files as instantly ready, verifying the WEB/PACK_SIM condition matches the original's web_file_status check before moving on to the manifest and packs logic.

I also traced through the regex pattern escaping to confirm the Lua string literal matches correctly once written through Python, then checked how color values are packed as RGBA ints in the alpha-blending helper. Now I'm reasoning through the loading struct's total/ready comparison to figure out exactly when the intro draw call stops firing after boot completes.

Checking the boot pack's multi-frame unpacking budget, confirming where the loading struct gets created relative to when packs_begin populates its fields, and noting that elements.lua and main.lua need to call the loading draw function. I'm also verifying the loose-file fallback path and confirming file paths resolve correctly both on desktop and inside the Emscripten MEMFS after fetching.

On the web build I'm making sure the sim root directory exists from the manifest and that env.sound_load, texture_load, and start_instance all resolve paths through the shared root rather than def.dir directly, then checking what else in GAME_DI still references def.dir.

Beyond that, the only remaining direct dir reference is for pulling the title font asset for page layout — which doesn't affect the sim logic, so I'm fine to go ahead and run the patch now.

I'm checking the pack builder in pack_games.py for games that include site_packs.lua, like lich-survivors, and need to verify sync_lich_survivors.py actually copies that file over by examining its file selection logic.

I should add site_packs.lua to OPTIONAL in sync, and note the dead files the agent found—five cave_2 orig files, unused textures, and unused UI icons—though I'll leave those alone for now. For site_packs.lua, since it's Lua but pack_games.py is Python, I'm thinking of using simple prefix-based matching instead of parsing Lua patterns directly, so each pack just lists prefixes to match against.

Rather than JSON (which the game code doesn't need) or something Python can't easily eval, I'll go with a readable text format both the game and the tool can handle: site_packs.txt, grouped into bracketed sections like [boot] and [ambient], where each line under a section is a path prefix or file-extension pattern, and unmatched files fall into the last pack by default.

I'm cross-checking what files the orbs world actually needs — geo_3's attribute files plus cube_0's faces — against the prefix patterns to make sure nothing's missed, and I'm figuring the sim test will immediately surface any missing-file crash so I don't need to guess exhaustively. I'm also verifying boot-time dependencies like the items.lua manifest and whether other modules (like lens attacks or powers) read from the items folder at startup.

Now I'm thinking through pack file naming — using the content's sha1 hash in the filename, pruning stale packs, and sorting files alphabetically within each pack. I need to edit pack_games.py so that after mirroring a game, if site_packs.txt exists, it builds packs and records their metadata in the manifest, assigning every file in rels to a pack; and since packs are quite large, I want to avoid rewriting them on every run unless the content hash has actually changed.

Reading all files to compute the hash each run is cheap enough. I'm deciding the manifest's plain file list should only include game files, not pack files, so the desktop sync path doesn't redundantly check them — but prune() still needs to preserve the pack files by including their paths in its keep set. Deployment stays simple since deploy.sh already syncs the games directory and uploads packs once. Now I'm ready to write the actual pack_games.py changes.

I'll create a `site_packs.txt` plan file in the game's folder defining which files go in which pack, then build the packer that reads it.

Checking that the escape sequences in the generated pack_games.py source resolve correctly, particularly the null byte and newline escapes in the string literals.

The prune function keeps only files listed plus the manifest, removing stale packs with mismatched hashes while leaving empty directories alone—this should correctly clean up outdated pack files. With that logic confirmed, I'm ready to run the patch followed by sync and pack.

I see the sync picked up five changed files, including the title, items, game logic, and audio changes, plus the packs list — good, since the simulation will now exercise that new code. The boot pack itself is around 22 MB raw with some unused UI icons and dead cave files included, compressing to roughly 9-10 MB gzipped.

For audio, sounds come to 14.1 MB and ambient to 2.1 MB, totaling 16.2 MB, which checks out. Now I want to run the desktop simulation with simulated bandwidth, using the renderer in admin mode so the game shows up in the home list — but I need to figure out whether the unlock test environment variable forces an "EGG" (ending) start regardless of settings, since I actually want to test the normal player flow rather than starting at the ending. I should check the unlock effects code around those specific line ranges to see how test mode resolves the starting state.

The packing works—797 files now consolidated into four packs (boot 22 MB, ambient 2.1 MB, sounds 14.1 MB, items 56.8 MB). Next I'll run the site on desktop with a simulated web environment (empty cache, 6 MB/s download) to confirm the game boots from the boot pack alone.

I'm tracing through how SITE_UNLOCK_TEST without LICH_START affects the game start flow, trying to figure out whether the game defaults to hosted mode or reads some stored state when the env var isn't set.

I should also check whether SITE_UNLOCK_GAME_DIR is set, since that would change where the game's files are hosted from and skip the local file readiness check. Since I won't set it, the game loads from the mirrored admin directory with packs, so I'm planning out a simulated probe: waiting for the game to boot without errors, checking pack readiness over time for items and ambient sounds, then clicking into the game to test inventory interactions once the items pack finishes loading.

I'm also working through the timing math — walk-in takes roughly 6-7 seconds, while the items pack (56.8MB) takes much longer to fetch at the simulated transfer rate, so there's a window where I could click an inventory slot before the items pack is ready to test how the game queues that action. I'm accounting for the difference between raw and gzipped byte sizes to make the simulated MBPS rate more realistic, then figuring out how to programmatically trigger a click on an inventory slot through the debug environment.

Finding the slot coordinates...

I'm working out the icon slot positioning formula in game coordinates, calculating where each inventory slot rectangle sits based on screen width and icon size, regardless of whether the UI is currently visible.

Now I'm sketching out the probe sequence: start the fetch at a fixed bandwidth, watch for when the items pack becomes ready, click into the game and then click a slot before the pack loads so it queues an "ask_late" request, then verify the inspect panel opens once the pack arrives and that the sound waiting list clears once the audio pack loads. I also want to confirm no host errors or missing-asset crashes occur anywhere in that sequence, then write up this probe.

I'm figuring out the engine's fixed update rate at 120 Hz, treating each step as 1/120 second for timing calculations, and planning to run with specific environment variables to unlock the test setup and enable game packs.

SITE_UNLOCK_TEST sets view-as-public mode, but it doesn't seem to auto-click in the test stage -- replaying without a click only happens on pressing R, via the restart and click handlers together.

It works - the game started 2.17s into the probe, meaning the fetch actually began during drive start, before the probe officially began measuring. That's consistent with the boot pack timing at 6 MB/s.

Everything matches the design: boot loads alone, ambient pack brings cave_amb online with waiting drops, sounds pack clears the queue, and items pack creates the viewer objects. But the slot click at 12.2s happened after items had already landed, so the queue path never got exercised - I should rerun with a slower transfer rate (2 MB/s) and click the slot earlier, right after the walk-in intro ends around 6s, to actually test queued clicks, and verify the viewer opens the correct item (index 0) from that queue.

The simulated web run completed end-to-end with no errors — audio, objects, and the viewer all load correctly as their packs arrive. Since the earlier slot click happened after the objects loaded, I'm rerunning at 2 MB/s to test a click that occurs before they arrive.

The queue timing checks out—slot clicked at 13.9s, items landed at 21.2s, and the viewer opened on object 0. One UX concern though: clicking a slot that does nothing for several seconds before the viewer pops open isn't ideal, since items pack roughly 24MB gzipped taking about 4 seconds after the sounds load, with total load time from boot plus ambient plus sounds adding up noticeably.

More concerning is the boot sequence itself: downloading and unpacking the boot pack, then synchronous startup involving Lua modules, cave/lich creation, and program warm-up compiling 53 shaders one by one—which measured around 4.6 seconds in a prior probe, causing a visible freeze after download. I'm weighing whether to fix this by deferring compilation lazily on first use instead, which would shrink the initial freeze but introduce small hitches later when new programs get triggered mid-play.

Alternatively I could spread the remaining warm-up across frames during the walk-in period, but that risks looking choppy at roughly 10fps for a few seconds while the player's still looking at the cave. The real fix is probably async shader compilation via KHR_parallel_shader_compile, though that needs an engine-level change and redeploy. Before committing to any approach, I should instrument boot.lua with precise timing for module load, first tick, warm-up, and first frame draw, and check how bench.lua's active() gets triggered by webbench's bench_on file.

Confirmed clicking a slot before arrival works—the viewer opens on that object once it lands at 21.2 s. One remaining cost: compiling all 53 shader programs on boot takes ~4.6 s on web, so I'll time the web boot in the benchmark page before deciding how to address it.

I'm adding boot timing instrumentation to boot.lua, capturing timestamps before and after game setup and the first tick, then printing a 'BENCH boot ms:' line that the bench page can parse from console output.

I want to measure how long the first frame takes after boot finishes, so I'm planning to store a shared boot-completion timestamp as a global and compare it against the timestamp of the first frame call in the bench code.

Then I'll kick off the webbench run via build then run script, knowing the full cycle with warm-up and measurement takes close to a minute, so I'll just run one at a time.

The standalone web boot takes 7.3 seconds total before the page unfreezes — 2.4s for create and 4.8s for warm-up — which completely undermines any sense of "immediate" loading. I'm trying to figure out what's eating the 2.4s create time: likely candidates are item creation (all six made upfront since this isn't hosted), lich skinning, cave generation, or sound loading overhead from decoding file headers.

I should add timing marks into a global BOOT_MARKS table inside GM.create to profile exactly where the create time goes, and compare against desktop numbers since web Lua seems roughly 4-5x slower. For the programs warmup, 53 programs at ~90ms each is likely dominated by D3D11 HLSL compilation during linking via ANGLE, which can't be sped up without parallel shader compile support. Without engine changes, the best approach is lazy compilation — only compile what's needed for the first frame, then spread the rest across subsequent frames at one program per N frames to avoid one big hitch, trading it for smaller spread-out ones instead.

With KHR_parallel_shader_compile support, I could instead submit all 53 program compiles asynchronously at boot so the driver parallelizes them across threads without blocking the page, since renderer.lua already skips draws when a program handle isn't ready yet — this just needs the engine's gpu_program_create to support non-blocking compile/link.

But that's a real engine change requiring a site-wide deploy, which carries more risk than a game-only fix. Lazily compiling programs at first use instead would avoid boot hitches but just push the stutter into gameplay, which seems worse than spreading compiles out during the idle cave view before the player's first click.

So if the player sees the scene right after boot and doesn't click for a few seconds, I could spread the ~3s of program compiling across that idle window with minor hitches that don't matter since there's no interaction yet—though if they click early, the walk-in just continues with visible hitches. Still, the first frame itself needs ~20 programs compiled lazily (~1.8s on web), plus the ~1.5-2.4s create step, adding up to roughly 3.3s of freeze after download, putting total time to playable around 5 seconds before the intro even starts.

But I'm wondering if I could split those first-frame compiles across multiple frames instead of freezing once: have the game draw its intro/name screen for a few frames while compiling one program per frame, keeping the page responsive and the intro animated rather than frozen solid, with total time similar but UX much better. This would mean in hosted mode, boot skips warming, and main.lua's draw loop checks a pending warm queue, compiling a program or two per frame while drawing the intro until the queue clears, then switching to the actual scene — ordering the warm queue so first-frame-critical programs compile first across roughly 6-10 frames.

I'm also wondering how the game would know which programs are needed for that first frame — maybe recording the keys used during the first draw on desktop and hardcoding that list, or letting compilation happen lazily on first use. Simplest robust approach might be: skip warm-up entirely at hosted boot, let the first frame block on whatever it needs (~1.5-2s under the intro), then warm the rest in the background one per frame afterward.

Adding this up, total time-to-scene would be roughly download (~1.7s) + create (~1.5s) + first frame (~1.8s) ≈ 5s versus the current ~60s, with an intro screen covering the download and freeze periods — which fits since an intro screen was explicitly allowed. I also want to dig into what's eating the 2.4s create time on web, suspecting the icon renders for inspect objects are compiling extra programs during creation.

In hosted LATE mode, though, items/inspect/icon renders/sounds are mostly absent, so create time should drop significantly. I'm now thinking about how to simulate that hosted configuration in webbench, since webbench currently runs standalone (GAME_HOSTED nil, LATE false) rather than hosted — I'd need to fake the hosted flags, though that risks breaking the bench harness's existing flows.

Actually, rather than over-engineering a simulated hosted mode, a simpler approach is to add timing instrumentation directly inside GM.create to split out exactly how much time items/inspect/icons take versus sounds versus cave/lich setup etc.

Benchmarking shows game creation takes 2.4s and compiling all 53 shaders takes 4.8s, so even with instant downloads the page would freeze about 7s. I'll instrument the create step next to see how much is already trimmed by hosted mode's object, icon render, and sound handling.

I'm adding optional profiling marks guarded by a global BOOT_MARK function, inserting calls at key load points like sounds, cave build, lich creation, and nav build so timing can be tracked when benchmarking is enabled.

Looking at the timing breakdown, the icon renders take about 1966ms but turn out unused on the site, while the nav-to-objects section covering snakes, powers, and items takes 433ms, sounds take 159ms, and nav takes 112ms. I'm noting that hosting late skips the icons entirely, saving about 2 seconds.

I'm thinking through the warm-up strategy now: programs take 4.8-5.8s to compile, with some overlap since icon rendering already compiles some of those programs via inspection. I'm designing a plan where the first frame compiles only what it draws as it draws it, deferring the rest to compile one per frame afterward, so nothing visible ever stalls waiting on a shader compile — I'm writing the boot.lua logic to implement this spread-out warm-up approach.

Still writing warm-up logic...

I need to find where main.lua's draw function lives to hook this in.

Hosted mode already skips the 2s icon renders and defers objects/sounds, leaving just the 5s shader compile to optimize—I'll spread that across frames, compiling what's needed for the first frame then one shader per frame after. Now locating where each frame gets drawn in the code.

I'm adding logic to the draw function so that after the first full frame renders, it pulls one warm-up program off the queue per frame and compiles it, spreading out shader compilation instead of doing it all upfront.

I'm also considering how this interacts with the hosted web build versus desktop, and thinking about how to actually measure this boot behavior in webbench since that harness isn't hosted by default — I'd need to add a flag so webbench can simulate the site's late-loading, hosted boot path to get accurate timing data.

Estimating the two dominant costs: a lean create phase (sounds, cave, lich, nav, items) under 0.8s, and a much heavier first-frame compile where roughly 24 of 53 shader programs get drawn immediately, costing something like 2.6s. Combined with download time, that's close to 5 seconds total, so the fix is to spread program compilation across earlier frames while the intro screen is still showing, rather than letting it all hit on frame one.

A simpler approach: instead of the host drawing a generic intro, let the game's own draw() render its title (e.g. "PHYLACTERY" in its ember font/HUD style) during warm-up, so the composite shown to the player is still coherent while shaders compile behind it — matching the "keep it simple for now" guidance, with fancier styling deferred to the Steamworks pass.

Compiling 53 programs one per frame at ~110ms each adds up to roughly 8 seconds before the scene appears, which feels too long for an intro. A possible fix is compiling only the subset needed for the first frame (~24 programs, ~2.6s) during the intro, then compiling the rest during play — though that risks hitches while the player is already walking in. The real bottleneck is probably a handful of expensive programs (like the traced gem/orb and cave GI shaders), so I should actually measure per-program compile time in the warm-up loop to see where the cost concentrates.

Skipping those unused icon renders alone saves 2s. Now I'll measure each shader program's compile time on the web to see if a few heavy ones dominate before deciding how to distribute the compiles.

I'm looking at per-program compile times on web — some heavy ones around 150-380 ms like item shaders for thrown objects, the lich gem shader, and the lens glass shader — and weighing whether they're actually needed immediately or could be deferred since the lich stays off-frame and may be culled until it walks in.

Adding up the first-frame cave/post/egg/depth programs gives roughly 0.5 s of compile, since the inspect and post programs seem already compiled by the icon render pass. That leaves about 4.5 s of remaining compiles that, if done one-per-frame, could cause a noticeable 382 ms hitch — so I'm thinking it's better to order the warm-up queue by when each program is actually needed, starting with the lich.

Prioritizing item.gem and item.orbs since they're needed almost immediately after click, then snakes and attack effects (lens.glass, rock.stone, fx.*, gore.*, warp), and leaving the inspect/world item programs for whenever a throw or viewer interaction happens. Since each compile is atomic, one-per-frame scheduling works fine, and if the queue hasn't reached a program by the time it's needed on screen, it just compiles on-demand with the same hitch cost as if it'd been warmed in that order anyway. Totaling it out, about 4.8 s of compile spread across roughly 53 frames.

Rough total wall time is around 5.6 s of choppy frames during the initial cave-view and walk-in period, which seems tolerable since the player isn't actively interacting yet. I'm weighing whether to defer the item.* programs (~1.8 s) until the items pack loads, but that risks a hitch during actual play -- a brief hitch when opening the viewer feels acceptable since there's already a natural UI pause there, but a hitch at throw-time would be jarring. Still, the warm queue should get through them in the first six seconds regardless, so it's probably moot.

For the queue order, I'm prioritizing by key prefix: cave/depth/post keys first since they're needed by frame one, then lich and item.orbs/world for the walk-in sequence, then the fight-related keys (snakes, warp, fx, lens, rock, leak, gore), and finally item world/inspect programs for thrown objects and the viewer, which can compile whenever since their source lives in the boot pack. I'll start the warm queue right after the first frame and process one program per frame, and confirm that compilation naturally pauses if the game isn't visible since draw() won't fire -- which is fine. Now I just need to wire this into boot.lua and main.lua, keep the bench print statements since they're useful under bench mode, and double check that the icon-skip logic still works correctly when inspect is nil during hosted LATE mode.

Looking at expected load times: sounds take about 167ms in hosted mode but none load at boot since the files are absent, nav takes 114ms, and the "between" phase takes 444ms covering snakes, powers, and items world for six objects (though hosted only has orbs). Estimating the full hosted boot sequence on web — modules at 46ms plus create around 0.4-0.5s plus the first frame compile and GPU uploads around 0.5s — gives roughly a 1 second freeze after the boot pack arrives, which tells me it's time to actually implement the warm queue now.

Most compile cost comes from a few programs not needed on frame one (thrown objects, attacks, gore), while the first frame only needs the cave and post-processing shaders (~0.5s). I'll have the host compile just what's drawn on frame one, then compile the rest one per frame in the order they're actually needed: lich and orbs, then the fight, then objects and viewer.

I'm sorting descending by rank so that rank 1 lands at the end, matching how table.remove pulls from the end. Now I need to verify the hosted web path works correctly, checking that the bench setup properly emulates hosting flags, input handling for walk-ins, and guarded site calls.

I'm thinking through how to set GAME_HOSTED before boot.lua requires the game module, since the HOSTED flag is evaluated at require time. I also want to emulate the "late" asset loading by faking delayed availability of packs and sound files, so the benchmark reflects realistic timing when items and icons load after boot.

Writing boot.lua hosted emulation...

I'm adding a note about creating a separate bench_site config so the benchmark can simulate the hosted environment, toggled via an environment variable alongside the existing bench_on setup.

Then I write the host_emulation function, which checks whether a bench_site file exists and, if so, sets GAME_HOSTED true and staggers readiness for sound and item asset packs over several seconds to mimic real network loading delays a visitor would experience. I'm also thinking through how GAME_HOSTED needs to be set as a global before game.lua is required in boot.lua, since the module reads that flag at the top level to decide whether it's running in hosted mode.

I need to make sure other site-dependent functions stay safely nil-guarded in standalone mode, and that build.py gets updated so a WEBBENCH_SITE=1 environment variable creates the bench_site marker file to trigger this emulation.

I'm examining boot timing on the web version — total load is around 0.63s, and the first frame appears to be drawn 43ms after boot. But I realize that measurement is taken at the start of draw(), before rendering happens, so it likely doesn't capture the actual compile time of the first frame. I should check the timing at the second frame call instead to get an accurate read.

The worst-case frame of 47ms is measured during the warm phase (after 8s), while the early hitches before that aren't being captured. I want to modify the benchmark to log frame-to-frame deltas for the first several frames and track the max during that early warm-up window, so I can see the real startup cost separately from steady-state performance.

The hosted web boot time drops from ~7s to ~0.6s, but that measurement doesn't capture the first frame's own compile time. I'll add tracking for the early frames to measure the first frame and any warm-up hitches.

Looking at the hosted timing, the first frame takes 2.88s due to compile and GPU upload costs, then warm-queue frames hitch between 180-225ms over the next 8 seconds. That puts hosted total freeze at roughly 3.5s versus standalone's 7.2s boot but only 29ms first frame, which makes me wonder what's driving that 2.9s first-frame cost on the hosted side.

I'm tallying up the programs likely compiled on the first frame — cave shaders, depth passes, post-processing, possibly the lich mesh and orbs if they're drawn off-screen or cast shadows without frustum culling — and that rough sum lands close to the observed 2.9s once GPU uploads are included. One fix would be to spread program compilation across several frames before the scene renders, using an animated intro screen to mask the freeze so the 2.9s becomes responsive-looking loading time instead of a hard stall.

Rather than guess at exactly which programs the first frame needs, I'm thinking I should empirically log the actual renderer:program calls during a real first render on desktop, then use that captured set to drive the warm-up order during the intro — since offscreen pre-rendering wouldn't actually spread the compile cost anyway.

I could distinguish warm-popped keys from first-frame keys by tracking which entries were removed from the front of the sorted warm list, since I know the warm order. But intercepting before the very first draw isn't possible through the probe.

A cleaner approach: during the intro, warm every program one per frame in the scene-first warm order (cave/post/depth prioritized), and only reveal the scene once the warm queue empties.

That full warm-up totals around 53 compiles, roughly 4.8 seconds plus frame overhead -- longer than the 2.9 second budget. With the scene set approach instead, the intro would run about 2-2.5 seconds, then the remaining programs trickle in one per frame during gameplay, causing ~200ms hitches during the walk-in.

I need to figure out what's actually heavy in that first frame, so I'm checking the renderer's program cache directly by looking at how renderer.lua builds its program() function.

Boot is fast at 0.6s, but the first frame still stalls the page for ~3.5s due to shader compilation and mesh uploads, followed by hitches as the rest compile. I'll instead have the game show a title card while compiling one program per frame (keeping the page scrollable), revealing the scene once its required programs are ready—now identifying which programs the first scene actually needs.

I'm planning to add a hosted intro sequence to the game: boot.lua builds a warm-up queue in scene-first order and sets a G.intro flag, then main.lua's draw function compiles one program per frame while showing a title card instead of the scene, switching back to normal rendering once the warm-up queue is exhausted.

To figure out exactly which programs belong to the "scene set," I'm considering using the desktop simulation — catching the moment right after the game starts, before any frame draws, and temporarily emptying the warm-up queue via the environment so I can read back the renderer's compiled program keys, which should give me the precise set used by the first scene frame.

After that, I need to account for the walk-in phase, where clicking triggers the lich and related assets to appear as the warm queue continues supplying one item per frame — so the intro list is really the scene set compiled first in warm order, and the intro phase ends once all of those are done. I'll just run this probe in the desktop sim since it executes instantly when MBPS is unset.

The lich-survivors game copy needs to resync with the latest boot.lua/main.lua before packing, and I need to watch for a race condition where frames could render before I clear the warm flag, since the probe starts as soon as the site boots and polls for readiness.

Since engine_step likely runs update and draw together, the first draw might happen in the same step as start_instance, meaning my compiled output could include one extra frame plus a warm pop. That's a minor contamination from the last queued program (rank 1, lich.*), but it's acceptable to note and move past.

So those 27 compiled programs happened before my probe even took control, likely from the initial scene draw covering gore, fx, leak flakes, lich gems, and item orbs—objects that get shader programs compiled just by existing in the draw call, even with zero active instances.

The remaining 26 then warm in afterward, starting with item.mask (used by the lich's mask) and the snake/warp effects during the walk-in. This makes me wonder if a renderer-level optimization—skipping draws entirely for meshes with zero instances—could avoid those unnecessary compiles and shrink the first frame's 2.9s cost, though touching the renderer risks breaking the bit-exact determinism checks tied to room digests.

I'd rather not risk renderer changes for determinism reasons, so I'll implement warming via a queue in boot.lua: scene programs first, then the walk-in set, then everything else. During an intro state, draw() pops one program from the queue per frame, renders an intro card instead of the world, and only switches off intro mode once the full scene set is compiled—with the card showing the game title centered in the game's font, similar to how the site shows the name while the boot pack downloads.

Actually, I'm reconsidering whether the game's intro should mimic the site's look exactly, since fonts and backgrounds differ—maybe the simplest coherent option is to have the game's layers stay blank/transparent during this phase while the host continues showing its own site intro on top, with the game simply reporting that it's still in intro state.

I should extend game_host_loading to also trigger when started but the game signals it's still warming up. If the game simply avoids calling layer_draw during intro, the composite queue stays empty, the page background shows through, and the host's intro text renders identically to the pre-start state — I just need to confirm the host handles an empty composite queue without issue.

The host intro then continues seamlessly, with the page staying responsive at a choppy but acceptable frame rate during compilation. I also need to block input during intro — skipping the game's frame/update and input_update calls while G.intro is active, so clicks don't prematurely trigger state changes before the scene is visible.

Writing the update/draw logic...

I'm tracking intro completion with a countdown: G.intro_left starts at the number of scene programs and decrements each time a queued compile pop matches a scene key, flipping G.intro false at zero — while special-cased map entries outside the scene list stay unaffected.

Also checking that the hosted desktop unlock path still works correctly since LICH_START=EGG triggers the same intro timing, and that the host's game_host_loading check safely calls the game env's game_intro function via pcall to decide whether loading should continue.

I'm now considering whether the composite draw happens before or after the loading text draw in elements.lua — if composite comes after, it could overwrite the text, but since the composite stays empty during intro it shouldn't matter. Same logic applies to the fullscreen article game page in main.lua, so I'll move on to listing out the scenes.

From the probe's 27 keys, I'm walking through the list: item mask, snake body, snake eye, warp puffs, then continuing in pattern order through lens, rock, fire effects, leak, gore, item world, inspect, and the remaining post-processing items.

The first scene triggers 27 program compiles, plus 4 more from the walk-in effects (mask, snakes, warp puffs). I'll have the hosted game hold rendering during that initial compile (keeping the intro visible and the page responsive, with input blocked until the scene appears), then compile the remaining ones at one per frame during play, prioritizing the walk-in effects.

I should remove the unused `rest` variable, and notice that an empty pattern matches every key so all get ranked. I'm also realizing the bench's frame timing starts only after the intro since draw() returns early before calling B.frame, but I actually want first-frame timing measured from boot instead.

With intro present, that first B.frame call now measures intro duration rather than true startup, though for game_hosted bench the intro pauses update so the timer doesn't advance — that's fine. On the host side, I need to patch game_host so game_host_loading accounts for started games sitting in intro.

Boot takes 0.66s, then the intro runs 2.44s at roughly 11fps while loading 27 programs frame by frame, followed by the scene's first frames hitting 292, 194, and 143ms as GPU uploads and warm pops happen on first draw. Over the first 8 seconds there are 19 frames over 50ms from remaining warm compiles, with a worst case of 319ms.

The remaining hitches come from 26 programs compiling warm during the first seconds of gameplay, adding up to roughly 4.4s of choppy frames while the player is viewing the cave and walking in — spreading them more thinly across frames doesn't really help since the total compile time is fixed, and the real fixes would be parallel compilation or deferring compiles (which just shifts the hitch to mid-fight, which is worse). I'm considering whether extending the intro to cover the walk-in set would help absorb this cost instead.

Extending the intro to also cover the fight set programs (lens, rock, snakes, etc.) would add about 4.5s, giving a ~7s intro but smooth play afterward — versus a shorter 2.4s intro followed by 4.4s of choppy initial scene. Since the owner already said a brief intro screen is acceptable if more loading time is genuinely needed, I'm leaning toward having the intro cover everything except the thrown-object item world programs and inspect programs, which are only needed on viewer-open or throw and can be warmed gradually during play at a slow, barely-noticeable pace instead.

Alternatively, I could just let those programs compile lazily on first use: a brief hitch when the inspect viewer opens (acceptable since it's a paused UI moment) and a small hitch when an object is thrown, since the viewer renders its own scene and triggers shader compilation automatically on first draw.

Pre-warming all item world programs on first viewer open could stack up to a ~2 s freeze though, which feels too long for a first interaction. A better compromise might be to let the intro sequence warm the non-item, non-inspect programs, then trickle-load the item and inspect programs gradually during play, one per second, so no single moment takes the hit.

Still, if simplicity wins out, warming everything in the intro gives a totally smooth gameplay experience afterward, at the cost of roughly a 7 second initial wait versus the old 60+ second freeze. But that conflicts with the goal of feeling "playable immediately" — a scene-only intro trims that down to about 4.8 seconds before gameplay starts.

I'm wondering if I could defer the item/inspect program costs until they're actually needed, shifting the hitch to a moment that's less noticeable, like the first time the viewer modal opens. Looking at the full player timeline — load, intro, cave scene, walk-in, snake arrival — there's a window during the walk-in (~6+ seconds) where I could quietly warm up the fight-related programs like snakes, lens, rock, and fx in the background.

I'm estimating the lens-related assets (glass, shimmer, patch, cone) plus rock, warp, and leak come to roughly 1.2 seconds spread across ~10 small pops, and then items and inspect add another ~2.2 seconds if spread slowly during that same pre-fight walk. Since the walk-in is cinematic with minimal interaction, hitches there should be less jarring than during combat, but running the math — 26 programs over 6 seconds is about 4 per second with ~150ms hitches each — that still sounds like it'd make the walk choppy, with the camera fixed and the lich floating in through visibly frozen frames, which isn't great.

The real fix is parallelizing shader compilation using the engine's support for async compile status. Instead of blocking on link status immediately after linking, I'd mark programs as pending and poll their completion status each frame, submitting all 53 programs at boot so the driver compiles them in parallel in the background — with the intro only waiting on the specific programs it needs while the rest finish silently. The catch is that uniform location lookups currently happen right after linking, which still blocks, so I'd need to defer that introspection until the program reports ready; this is a moderate chunk of engine-side C work.

That said, this requires a full engine rebuild and redeploy affecting the whole site, which is risky for today and needs his sign-off, so I'll propose it as a follow-up rather than the immediate fix — instead comparing intro-sequencing options (A: scene-only warm then hitchy remainder, B: scene+walk+fight warm then slow-trickle hitches during item/inspect use, C: warm everything upfront for ~5.5-6s but smooth after) in terms of total time-to-playable and hitch distribution.

He explicitly wants the game playable immediately with loading spread across the first minute if possible, rather than a longer upfront intro screen, which points toward something like Option B but with warming spread more gradually — maybe one program every couple seconds — accepting that hitches during active combat moments are noticeable, and considering whether to warm intelligently during calmer lulls rather than during attack waves, though that feels like overkill. I'm leaning toward an intro covering the scene plus walk-in sets as the practical middle ground.

Looking closer at what's actually needed in the first ten seconds: the walk-in, then the first wave's attack effects (lens, shimmer, patch, cone), rock/stone effects, gore, puffs, flakes. What's left over after that — item/world assets like gem, hand, lens variants, lodestone — adds up to roughly 1.2 seconds, plus inspect-related costs of maybe 1-1.5 seconds since those were previously masked by icon compilation, plus small leftover cave costs. So the intro boundary naturally falls around scene + walk + first fight.

Adding it up: around 27+4+6 ≈ 37 programs, roughly 3.5 seconds for the intro sequence, with item/inspect programs (~16 programs, ~2.5s) trickling in afterward at one every second or so, causing 16 separate hitches spread across the first fight. That spread feels worse than concentrating the cost somewhere the player isn't actively engaged — like the viewer opening screen, where compiling inspect and world programs up front would cause one noticeable freeze (~1.5s) right after the click instead of many small stutters during combat.

A better compromise might be to warm these programs during the walk-in cinematic instead, since the player has no control there anyway — spreading 16 programs over a 6-second static camera shot gives a hitch roughly every 0.4s, which is choppy but tolerable since nothing requires responsiveness. After that point, everything plays smoothly, and if the player idles, the warming just continues quietly in the background against a mostly static cave scene where the stutter is barely visible.

So I'm settling on treating intro as covering scene+walk+fight programs (~3.5s), then after that letting the remaining programs pop in steadily at one per 0.4s regardless of game state — giving a decent balance between visible delay and smooth gameplay afterward.

Now I'm working out exactly which programs belong to the fight set versus which get deferred: separating out item-specific world objects (gem, hand, lens_glass, lens_frost, lodestone) and their inspect variants from the main set. Counting it out, intro ends up covering about 40 programs with the remaining 13 (thrown objects and the viewer) deferred for later warming.

I'm thinking through whether to just warm the deferred set during the viewer-open event instead, since inspect programs would compile naturally there anyway — but decide to keep the paced warming approach for simplicity. I'm defining a LATER list to mark which item/world and inspect-related programs get deferred, then sorting the warm-up order by category: scene first, then walk, then fight and others.

During intro frames, I pop one program per frame; after intro completes, I switch to popping one every half second using an accumulated delta timer.

I found that compiling all 26 remaining shaders after boot causes ~4s of choppy frames right as the cave scene starts. I'll move the walk-in and fight shaders (3.6s) into the intro compile so play starts smooth, leaving only the 13 thrown-object/viewer shaders to compile gradually every half second until the first throw.

I'm noticing the intro took 4.6s across 40 programs, heavier than expected, then the first scene frame at 144ms with mostly smooth performance after that—though 12 frames exceeded 50ms early on, with a worst case of 459ms possibly from the lens_glass scene, and warm-up effects continuing past the 8s mark.

The measured span actually starts right after intro, with warm pops happening between 0.5-6.5s, so that 318ms spike within the span is suspicious—earlier runs only hit 51ms max, suggesting something got compiled mid-measurement rather than during intro warm-up, maybe a lazily-loaded program triggered by first use rather than pre-warmed. I'm checking whether draw()'s dt variable is properly scoped and whether the early-return path for already-drawn frames might be skipping the warm-up code on certain frames.

Actually the delay makes sense: bench time lags real time because dt gets capped at 0.25s during hitches, so finishing 13 pops by ~6.5s in bench-time could correspond to ~9s of real time once hitch overhead is added—meaning the overlap into the measured span and that 318ms spike is expected behavior, not a bug.

Now I'm weighing whether the 4.6s intro is worth it overall. For a new visitor, total time-to-visible including download, unpack, boot, and intro comes to roughly 7.5s versus 5.3s for a scene-only approach that then has 4s of choppiness—so the intro buys smoothness at the cost of initial wait. I'm also wondering if shader compile time itself could be reduced, since ANGLE's D3D11 HLSL compilation is notoriously slow for the large, fully-chunked three.js shaders.

I'm also factoring in Chrome's GPU shader cache — compiled binaries persist across page loads, so cold-cache benchmarking overstates first-visit cost for every user; returning visitors get much faster compiles, which changes how I should weigh the intro's necessity. Given the owner's preference for simplicity, I think a basic intro is justified, though I'm considering an alternative where the intro only covers the scene-and-walk shaders (~31 programs, ~3s), while later shader compiles get paced out during the cave idle and walk-in so the costliest ones land well after the player's first click.

But the hitch pattern during that paced-out phase could land right when the scene first appears — the most visible moment — so I'm reconsidering whether a slightly longer upfront intro that avoids any visible stutter is actually the safer trade-off, especially for item/inspect programs, which could instead be deferred to compile lazily the first time the viewer modal opens, since a brief hitch there happens over an already-paused game.

I'm now mapping out which world program needs to compile for each item when its viewer opens, so the throw action itself stays smooth — building a lookup table from item index to its mesh/material program keys.

Now I'm tracing where to hook this in: inside game.lua's ask_remove flow, right before inspect.open is called, I'd compile the item's world program using the renderer reference passed into game.lua (G.R), likely via a new warm_item(i) helper.

I should decide to drop the later-warm pacing entirely so items without ones already warmed stay deferred until their inspect viewer is first opened, since any compile hitch there is masked by the modal click moment rather than happening mid-play. I'm now double-checking whether post.copy/post.upscale programs are shared with the main scene rendering or only used by the inspect viewer.

Actually the fight programs can be deferred to the walk-in window itself since snakes don't appear until the player arrives — snakes.body/eye, lens.glass, rock.stone, warp.puffs, plus smaller lens bits total around 0.9 s across six pops, which fits comfortably into that ~6 s walk-in buffer.

I weigh pacing those during the walk-in versus lumping them into the intro, and decide I'd rather keep intro=40 with the longer upfront load than risk six small hitches during gameplay. For the gore programs, since fx.chunks is invisible until the first kill, there's no real benefit to deferring them. I settle on removing the staggered later-warm logic in main.lua, keeping the queue only for intro, and figuring out how to handle the warm_item timing when the viewer opens in game.lua.

Found that the 13 object/viewer shader programs still compile mid-scene, causing 12 small hitches right as the intro appears. I'll defer those compiles to when the viewer first opens (where a brief pause reads as a UI transition) and compile the thrown object's world program at that same moment so throwing never stalls.

I'm double-checking that item.mask|world and item.orbs|world already get assigned ranks under the SCENE/WALK rules before my "later" pattern would even apply, so there's no conflict there.

Now I'm mapping out a solution: compile each thrown object's world programs lazily, right when its viewer opens, rather than up front during intro. I'm sketching a `warm_object` function keyed by object index that compiles the relevant item programs (mask, hand, lodestone, orbs, gem, lens_glass/lens_frost) on demand, called from `ask_remove` before opening the inspect viewer.

I confirm `R.renderer` is accessible from game.lua since `R` is the global POST object, matching the pattern boot.lua already uses to compile programs. I also decide to remove the paced warm-up block in main.lua since objects will now compile on demand instead, leaving the `G.warm` list unused but harmless.

The late inspect creation path also routes correctly through ask_late to ask_remove and warm_object. Now I need to verify the desktop non-hosted case: checking that the game passes LuaLS and the digest stays unchanged, since the changes touch items.lua's late-context handling, game.lua's hosted-only LATE logic, and audio.lua's here() behavior.

I should check how the digest comparison procedure worked in previous rounds — searching RECORD.md for prior mentions of digest_run to recall the exact steps.

I need a HEAD baseline to compare against the new digest output, and I'm trying to figure out the right way to get one — maybe using a git worktree to check out HEAD separately rather than relying on uncertain session digest files.

Actually, a simpler approach is to just stash my tracked changes, run the baseline digest, then pop the stash back. Untracked files like the new site_packs.txt and sfx assets won't be affected since I'm not using the -u flag, and the digest run itself doesn't touch sound_picks.lua or the editor, so this should be safe. I'll go ahead and run both baseline and new digests this way.

I recall the title change to main.lua was already committed earlier, so the HEAD baseline accounts for it. Moving on to the new run now.

The digests match and the anchor check shows 0 errors with 179 pre-existing warnings. I want to check if any of those warnings relate to the new names I introduced, like game_pack_ready, so I'll grep for them specifically.

No warnings and the stash is clear now. I want to verify the full hosted pipeline end-to-end again in the desktop sim with the current code, re-syncing and re-packing to check the loading intro, slot click into the viewer, and whether the unlock flow still works properly at the end.

I should also test the EGG start path with packs enabled, making sure sfx files are available for unlock sounds by the time they're needed. I'll re-sync and pack, then run packs_probe and fixes_probe with the egg start and packs simulation flags.

No warnings in the new code. Now I'll re-sync the game's site copy and rerun both checks under the simulated web—the pack flow and the unlock with release date, scroll lock, and hidden-logs line.

This time the viewer didn't open from the queued click, unlike before — so something changed. I suspect the intro sequence is the culprit: the game's update loop returns early while the intro is running, so the click might have landed during those intro frames (roughly 40 frames at 120fps, about a third of a second) instead of after it finished.

That means the walk-in click got swallowed because `intro_on()` blocks slot clicks while INTRO.state is still 'wait', so the queued ask never actually fired — the walk-in sequence never started. This seems like acceptable behavior visually (clicking during the name intro just does nothing, then they click again once the scene appears), though it does mean input edges get lost during that window.

I should fix the probe to wait until `game_intro()` returns false before clicking, then rerun it to confirm the timing on desktop.

The click-before-arrival test failed because the probe's click hit during the intro (which ignores input), so the lich never walked in and slots stayed locked. I'll fix the probe to wait for the scene to load before clicking.

The desktop intro timing checks out at 0.33s, and the queued slot correctly opens the viewer once items arrive. Now I want to verify the intro card shows up during the loading phase itself — I'll try capturing frames at slow network speeds to see the transition from boot download to game intro.

I'm thinking about how to crop these captured frames to just the game area, using the host rectangle's position, which should still be valid even during the download phase since the game element remains visible throughout.

It works as expected: the scene appears 0.33s after start, and slots clicked before their objects arrived still opened the viewer once they landed. Now I'll film the intro card to verify it displays correctly—showing the game's name while the boot pack loads, then transitioning to the scene.

The loading row animation works fine, but the intro frames are blank — the name isn't showing during the game's intro sequence. I suspect the elements.lua draw path for a started game skips the loading text render, maybe because it returns early or follows a different composite path than the unstarted game case.

The name/breathing card is correct while assets download and the scene renders fine, but once the game's intro starts, the card wrongly goes blank instead of keeping the name visible. I'll track down where the loading draw gets skipped once the game starts.

I should verify gx, gw, and gh are properly defined before this branch since they're used later in the loading draw—let me check the earlier lines where they're set.

I'm checking main.lua's loading branch for the game page—it draws the loading state whenever game_host_loading returns something, without a separate started check. Now I want to verify in elements.lua whether the game composite gets drawn after the card rather than before.

If the composite is drawn later, during intro it wouldn't matter since the game draws nothing yet, meaning the composite queue stays empty and no stale frames leak through—I should re-check by tracing through the actual draw calls to confirm.

The name now appears continuously across the loading and intro frames before the scene begins. I'm considering the font size for "Phylactery" in the site's bold UI style—keeping it simple for now and leaving fine-tuning of fonts and styling for a later styling pass, then moving on to checking the unlock test.

I need to verify the unlock still works with the intro and packs setup: with LICH_START=EGG, START_AT becomes 'EGG', the game waits for a click, and unlock sounds come from the sounds pack. I'll run the fixes probe with SITE_GAME_PACKS=1 so packs load instantly without MBPS delay.

Fixed the issue — the name now persists through the download and intro before the scene replaces it. Next, I'll run a final regression check on the full unlock flow (release date, scroll lock, hidden-logs line) with the game loading in as packs.

That explains "no run" — the click fired during the intro animation and got swallowed before the egg could open. Since the intro lasts about 80 ticks and the click happens at tick 30, it never actually registers against anything visible, so the fix is to wait until the intro ends before clicking, which also matches how a real user would behave since nothing's clickable during intro anyway.

But there's a bigger issue: his R-key replay tool injects a click right after restart specifically to reopen the egg for testing, and if that injected click also gets swallowed during the intro, his local unlock loop breaks entirely — that's a regression in his test tooling, not just a timing quirk in one probe. The injected click is consumed by the update call even if logic returns early, so the fix needs to either delay consuming the injected click until after the intro, or let update still process clicks during intro without rendering anything.

Actually, maybe I don't need to block the update at all — just let the game tick normally during the intro and only suppress drawing; a click then would correctly trigger the walk-in using the goal set in begin(), landing wherever the cursor is. The downside is the walk-in might complete before the intro finishes revealing the scene, which seems mostly harmless given the intro's short duration on desktop, though I need to double check timing on web builds too.

Given visitors likely can't click meaningfully during the brief web intro, the cleanest fix is to buffer any click made during the intro and deliver it once the intro ends, flagging it in the update loop and checking the injected mouse state so both scripted and real clicks get captured correctly for replay afterward.

I need to wrap the global mouse_is_pressed function so that a buffered intro click gets converted into a real press signal right when the intro finishes, but since main.lua only holds reloadable definitions, I have to guard against re-wrapping the function on every save by caching the original unwrapped version separately.

I should verify how mouse_is_pressed(1) is actually called elsewhere, like in game.lua, to confirm it's invoked as a global rather than captured as a local reference before main.lua loads.

I'm also worried about the flag being consumed only once per frame — if the same mouse_is_pressed(1) call happens multiple times (e.g. for pointer_down checks and then begin()), the first invocation might consume the "pressed" state, causing later checks in that same frame to miss it.

So instead the flag needs to persist for the entire frame: I should set a per-frame flag like `G.click_now` when the intro click happens, have the wrapper return true whenever that flag is set, and only clear it after the full game update cycle runs for that frame.

Found the bug: the unlock check fails because the probe's click lands during the intro while input is dropped, which also breaks the local R-based unlock loop. Fix: queue clicks made during the intro and deliver them as the first click once the scene appears.

I'm checking whether the anchor framework defines a global mouse_is_pressed wrapper that my own definition would override safely, and confirming that in standalone mode where G.intro and G.click_now are nil, the wrapper just passes through unaffected.

Timing matters here too: main.lua loads before boot.lua defines the global G table, but since the wrapper only accesses G at call time rather than definition time, this should be fine since by then boot.lua has already run. I should re-sync and re-pack things and rerun the fixes_probe and digest check, expecting the digests to match since the wrapper just adds a call layer without changing state.

Everything passes with packs plus intro plus a held click delivered during intro, resulting in egg opening and a run. Now I'm checking the replay path—restarting the game host should tear down physics, stop the hook, and spin up a fresh instance, so I need to verify whether that new instance actually gets a fresh `it` table with loading reset and the manifest re-fetched when packs are involved.

For packs mode specifically, a restart wipes everything in scratch root and re-unpacks, which means ~95MB of writes each time—slow on desktop but potentially much worse on web, since MEMFS already has the files and the originals were deleted post-unpack, forcing a ~48MB re-download. That restart path is desktop-only though (admin R key), and his unlock run uses local files with no packs, so no issue there. But I realize switching games out and back on the web front list hits the same problem: the instance gets nulled, then recreated later, re-triggering packs mode and re-fetching everything since MEMFS copies were deleted — a real regression versus the old individual-files approach where files just stayed ready in MEMFS. I need to find a fix for this.

I'll track which packs have already been unpacked per game using a module-level table keyed by path, so packs_begin can skip deletion and immediately mark state as done when a pack was already unpacked in this session — this should keep the web behavior consistent with the old individual-files approach while leaving the desktop restart/local-files paths unaffected. I'll implement this tracking in game_host.

The unlock checks pass—held click, egg opening, date, scroll lock, and hidden line all work as expected. I found one remaining issue: scrolling back to a game after another takes the live slot re-downloads the whole game since unpacked packs get deleted from memory, so I'll fix this by tracking which packs are already unpacked this session.

I should test that restarting the game instance doesn't trigger a re-unpack: wait for startup, restart via game_host_restart, then confirm packs are immediately ready and scratch files remain intact with no errors.

Restart confirms packs are reused correctly, with items created immediately and stand-ins properly made late once the pack is ready. Now I want to rerun the digest for the main.lua mouse wrapper change to verify it's identical, and redo the hosted webbench for final numbers since the held-click code didn't change.

I should also check the site renderer's Lua files that ran fine in the desktop instance, but focus on web-only code paths like pack mode handling, file removal, and MEMFS I/O operations that can't be tested on desktop—these need careful review since they only execute in the web environment.

Tracing through game_files_ready: on web, it checks WEB flag, confirms no local files, fetches the manifest via web_file_status, then proceeds to packs_begin if the manifest lists packs for the web platform, setting def.dir as root and returning to packs_pump.

In packs_pump, the boot state progresses from 'wait' to kicking off a fetch, then to 'pending', 'ready', and finally 'unpack' once the pack arrives—I'm confirming that emscripten_async_wget creates nested directories in MEMFS automatically, since this worked previously for other nested asset files, so the packs directory should get created fine too.

During unpacking, the file opens successfully, and ensure_dirs creates each directory prefix under root—since the manifest fetch or prior file fetches may have already created some of these subdirs, I expect EEXIST errors to resolve to true without issue. After writing the unpacked data and removing the source pack file on web to free MEMFS, I'm now checking whether nginx serves .pack files correctly: since mime.types doesn't recognize .pack, it should fall back to a default content type and still get gzipped properly.

Cache-Control for admin is private/no-store, so packs re-download each page load—fine for admin-only use, though once the game goes public I'll want content-hashed pack names with immutable caching. Cloudflare proxies data/admin without caching, and since large pack responses stream rather than get buffered, there's no issue with Cloudflare's size limits or 100s origin timeout, and on-the-fly gzip at a low compression level should be fast enough even for 57MB responses. On the memory side, I'm estimating peak web memory usage from a 57MB pack in MEMFS plus 57MB of unpacked files plus temporary Lua string garbage, landing around +170MB—I need to check what MAXIMUM_MEMORY the Emscripten build allows to make sure this fits within the wasm heap.

Digests match and the static check passed. Now I'm reviewing the web-only branch (which desktop can't run) for memory risk, since unpacking briefly holds the pack and unpacked files together — checking the web engine's memory ceiling next.

Without setting MAXIMUM_MEMORY, the default cap stays at 2GB, and the peak usage from site plus game should still land in the few-hundred-MB range, so that should be fine. The 57MB items pack could be split to reduce transient peak, though it's not strictly necessary—and I'm also noting that the "web_images_dirty" flag triggers a site repreload whenever a wget lands, which should be cheap per occurrence.

Now I'm mapping out the remaining steps: commit the lich-survivors game changes, write REDESIGN.md section 48 covering site-side details like release date, scroll lock, and pack intro, then commit the broader site changes across game_host.lua, elements.lua, main.lua, and the other affected files—being careful not to sweep in anyone else's uncommitted files like media-meta.json. After that I need a RECORD.md round 83 entry, and finally the deploy step, which per CLAUDE.md requires asking first before running sync + pack + deploy.sh.

Since the renderer code changes (game_host, unlock_fx, etc.) are shared infrastructure that affects every visitor to the public site, this really is a public deploy even though the actual risk is low — the hidden-logs fix, scroll-lock, and date display only matter in specific contexts, but the underlying files are global. There's tension between his instruction to "just do it, don't ask" and CLAUDE.md's rule that deploys specifically require permission first since they're public and irreversible — I'm leaning toward following the more specific, more recent CLAUDE.md rule here.

Given the memory notes consistently saying "deploy = sync + pack + deploy.sh --data, ASK first," I'll prepare everything fully — verified and committed — and explicitly ask in wrap_up whether to deploy to the live site.

I'm double-checking a few loose ends: no new renderer modules were added to the web build preload list, unlock_fx_holds_scroll is properly defined before it's called, the unused variable in front.lua's hidden row is harmless, the hidden-logs line is now fully part of the unlock effect with no separate lock, and the new `released` field in book.lua is just an additive record field that won't break anything.

Now I'm estimating total visitor wait time for the hosted site — boot takes 0.66s plus a 4.6s intro for 40 programs, on top of however long it takes to download the boot pack. I want to compute the gzip-compressed size of that boot pack to get a realistic download estimate.

The default 2 GB ceiling with growth enabled handles the brief overlap during unpacking fine. Now I'll check the boot pack's compressed size for an accurate load-time estimate, then write everything up and commit.

I'm estimating load times: the 8.1 MB boot pack downloads in about 2 seconds, then boot and intro add roughly 7.3 seconds total to reach the scene, a huge improvement over the previous ~67 seconds. I'm also factoring in background asset sizes like ambient audio and sound effects into the overall load budget.

The intro's shader compile is now the biggest remaining bottleneck at 4.6 seconds, so I'm thinking engine-level parallel compilation would help, and I'll propose that as follow-up work. I'm also considering whether Chrome's shader disk cache (GPU program binary caching, or the ANGLE blob cache for D3D11) would make this faster for returning visitors, though I can't verify that headlessly since each benchmark run creates a fresh temp profile—I'll just note it as likely.

Now I need to write up the records: updating REDESIGN.md with a new section, adding a round entry to RECORD.md in lich-survivors, updating memory, then committing both repos before asking about deployment. Let me start drafting the REDESIGN section.

Cold first-visit load is now about 7 seconds total (2s boot pack download, 0.7s boot, 4.6s shader compile) versus the previous minute-plus with a 7s freeze, with the 40MB ambient/sound assets streaming in afterward. I'll log this round in the site's REDESIGN record now.

The deploy script will refuse to run with uncommitted renderer code since it bundles that, so I need to commit first. Now I need to find where round 82 ends in RECORD.md and insert the round 83 entry before "The port to Anchor" section.

I should commit RECORD.md, boot.lua, main.lua, and the relevant port and tools files, but leave out the rounds/72-unlock-round-2 directory and sound_rooms.lua since that one seems untracked and not mine to touch. The scratch/ folder is likely already gitignored anyway.

I notice renderer/scratch/ is untracked and not gitignored, which is a problem since it holds a huge 95 MB unpacked asset from my packsim run. I need to check whether deploy.sh or build-web.sh might accidentally pick it up, though the build process seems to only reference specific preload files rather than scanning the whole directory.

The deploy's dirty-check scans untracked files (excluding reference and data) and would flag these untracked .lua files, blocking deployment with an uncommitted-code error. I need to relocate the sim folder somewhere outside renderer entirely -- data/ won't work since it actually gets synced to the VPS, so instead I'm considering an absolute OS temp directory path, reasoning through whether directory creation would succeed at each path segment on Windows.

Actually a simpler fix: gitignore renderer/scratch/ so git status (and the deploy's check) ignores it, then just delete the 95MB folder now since it's regenerated by sim runs anyway.

I found a leftover untracked `renderer/scratch/` folder (95 MB) whose `.lua` files would trip the deploy's uncommitted-code guard. I'll add it to `.gitignore` and delete the copy, since the simulation recreates it anyway.

I should commit only my own files to the site, excluding media-meta.json, fetch_tweets.py, and the uncached_*.py scripts since those belong to others.

The changes are committed but not pushed or deployed. I'm checking the deploy script's dirty guard, and since it only counts py files for pack_bootdata and subset_fonts, the uncommitted renderer scripts don't block it. I'm also considering whether I can do a build-only check to verify the web bundle compiles with the lua changes, without actually deploying.

Since build-web.sh exists separately from the combined build-and-deploy script, running it locally should just produce local outputs without pushing anything — it's a safe, reversible way to confirm the build works, so I'll go ahead and run it.

I'm checking whether the deployed engine build (43682421b8) is actually newer or compatible with the latest local build, since deploy.sh keeps pointing to the live wasm unless the engine was explicitly rebuilt — I need to verify the deployed engine has everything the new Lua code requires.

Checking through the Lua functions used - dir_create, file_write_string, io.open seek - and confirming they're all already supported by the deployed engine, so the game needs nothing new from it. Once the bundle build is confirmed fine, I'll move to deployment: pushing the site to prod and running the renderer deploy with data sync, then updating memory with this session's facts, and considering whether to propose a follow-up session card for the engine work since it has real build-and-verify implications beyond just deployment.

I'm checking whether the project file write already happened, since the assertion refers to MEMORY.md line 21 -- I need to verify the current line for Phylactery there.

Looks like the MEMORY.md line got shortened by something else in the meantime, now at line 89. I'll update that line with the session 17 summary instead.

I should propose a follow-up card for adding parallel shader compile support in the engine—async program compilation using KHR_parallel_shader_compile on web with a no-op fallback on desktop, then move to wrapping up with the deploy question.

For the acceptance criteria, Phylactery's hosted intro should submit all 53 programs at boot and show the scene once ready, rather than compiling one per frame, which currently causes a 4.6s cold load on web. Done means the engine builds on both desktop and web, replay tests pass, the hosted webbench shows a shorter intro, and digests stay unchanged—while leaving the actual site deploy for the owner to approve given the pixel-check requirements.

I'll propose tackling parallel shader compiling in the engine next, since it would cut down remaining load time—it's engine-side work with a site-engine deploy, so I'll run it as its own session.

The user wants this done here rather than in a new session, so I'll dismiss the other pending proposal and skip the deploy question for now. I'll start by reading the engine docs and the gpu_program implementation to figure out how to add async shader compilation support.

I'll feature-detect so the game works whether or not the live engine has the new API, then update the renderer to skip unready programs and the boot flow to submit compiles asynchronously. After building both desktop and web engines, I'll run the replay tests and webbench comparison, keep digests unchanged, and commit locally without pushing.

The task shows as already started, probably because the user's "Do this task here" action marked it as such. That's fine, I'll proceed and look at the gpu_program_create code and related lines to understand the implementation.

I'm planning to split gpu_program_create into a non-blocking begin step that compiles and links shaders without checking status immediately, returning a pending program struct so completion can be polled later, and deletion of shader objects can happen safely after linking is kicked off.

Then `gpu_program_finish` handles querying link status and gathering error logs or running uniform/attribute introspection on success, while `gpu_program_ready` checks the KHR_parallel_shader_compile extension's completion status to poll asynchronously, falling back to a blocking finish if the extension isn't available. I need to verify how Emscripten exposes GL_COMPLETION_STATUS_KHR through glGetProgramiv for WebGL2 contexts.

I'm checking emscripten's library_webgl.js source for glGetProgramiv — confirming the fallback branch passes the pname straight through to getProgramParameter, so completion status queries work as long as the extension is enabled. Now I'm checking whether emscripten's automatic extension enabling list includes this one by default.

I'll call emscripten_webgl_enable_extension on the current context to enable it, making sure html5.h is included. For desktop, I'm thinking the simplest approach is to treat compilation as effectively synchronous since NVIDIA drivers support the parallel compile extension natively.

Actually, even without querying the extension, drivers like ANGLE compile shaders on background threads by default — the blocking only happens when you query results. So issuing all compile/link calls upfront and querying status later would let the driver parallelize naturally, without needing explicit extension support.

For recording, I need to figure out when apr_gpu_rec_program should capture the program source relative to async creation. The safest point is when the program first becomes ready — right before it's used in a draw — rather than at creation time, since an async link could fail and we don't want to record a broken program.

I also need gpu_live_add registered at begin so cleanup works even for pending programs, and gpu_program_free must handle deleting shaders and the program regardless of pending state. Since Lua code could try to use a pending program in a draw, I'll make gpu_program_arg force a synchronous finish on pending programs whenever it's called, except from gpu_program_ready, to guarantee correctness.

For the API, I'm deciding on a new `gpu_program_async(vs, fs, label)` function rather than an opts flag, since it's clearer for feature detection. I need `gpu_program_ready(p)` to raise compile/link errors if they occurred, return true once ready, and false while still compiling.

Now I'm working out whether desktop should actually finish compilation synchronously inside ready() when the async extension isn't available, versus polling when it is -- checking whether GLAD actually exposes that extension on desktop.

Since desktop uses GL 3.3 core via glad and the parallel compile extension likely isn't loaded there, I'll just block at ready() on desktop and keep the old non-hosted game path unaffected. I'm also noting the optional thread-count hint is implementation-defined and not something I need to set. Now I want to check how gpu_program_free, gpu_program_flush, and gpu_program_arg are used in the APR recording code.

I'll split the blocking program creation into an async version that starts compile/link immediately and returns right away, with `gpu_program_ready(p)` polling `GL_COMPLETION_STATUS_KHR` on web before finishing setup—any other usage will still force completion first so nothing draws with a half-built program. Now reading the related recording and cleanup code that needs to follow suit.

I also need to handle the case where recording starts after a program is already live—there's logic that records all currently-live programs when recording begins. But if a program gets recorded at record-start and then also recorded again when it finishes, that's a double-record bug, so I need a `recorded` flag on the program to prevent that. Let me check the record-start logic more closely.

I recall the engine already enables KHR_parallel_shader_compile for set_draw_shader, so I want to check how that's set up to reuse the same pattern here.

I'm planning the refactor of gpu_program_create in anchor.c, adding pending-state tracking fields to GpuProgram and splitting the creation logic into a begin step that compiles and links shaders asynchronously without yet checking status, keeping the shader handles alive for later cleanup.

I'm then designing a finish step that queries the link status, gathers compile and link logs on failure, and on success deletes the shaders, runs introspection, and records the program—while making sure the existing synchronous create path stays functionally unchanged by extracting shared introspection logic into its own helper used by both paths.

For cleanup, I need gpu_program_free to also delete pending vertex/fragment shaders if compilation hasn't finished. On the Lua side, I'm planning gpu_program_async to kick off background compilation (using the parallel shader compile extension on web, blocking immediately on desktop), paired with gpu_program_ready to report completion status or raise the compiler's error. For gpu_program_arg, I need to finish pending compiles synchronously before use, but carefully avoid that wasted work when the call is coming from gpu_program_destroy, where I should operate on the handle directly instead.

I'm separating out a raw argument accessor that skips the synchronous finish, keeping the regular arg function to do the blocking finish as needed. Now I want to verify that all the other places programs get passed around (draw calls, mesh/layer references) go through this same arg path rather than grabbing the handle directly, so I'm searching for other handle_arg usages tied to GpuProgram pointers.

I'll apply the same pattern used for the D3D compile fix to `gpu_program`, and check every spot where a program handle enters C to ensure a still-compiling program can't slip through.

Good, all program uses route through gpu_program_arg across the five call sites. Now I'm checking the renderer's draw skip logic when a program is pending—since Renderer:program returns nil for a pending program, the renderer already skips drawing it, so I need the game side to treat that nil return as "not ready yet" rather than an error.

I'm sketching an async approach: at boot, submit all programs via program_async, caching pending handles, and have Renderer:program check compiled first, then poll pending handles for readiness. The tricky case is warm_object for items opened mid-game—if their program is still pending when the viewer opens, the object would simply not draw until ready, which might be an acceptable pop-in, or I could add a blocking variant of Renderer:program that forces completion before returning.

Since all 53 programs get submitted in parallel at boot, by the time the player actually opens the viewer (several seconds later) they're almost certainly compiled, so I'm leaning toward making Renderer:program simply block on pending handles (same as old behavior, worst case a hitch) rather than building skip-draw logic. The only place non-blocking polling really matters is the intro screen checking whether the whole scene set is ready before fading in.

For the engine API, I'm settling on gpu_program_async(vs, fs, label) returning a handle that's pending on web (if the parallel-shader-compile extension exists) but behaves like a normal synchronous compile on desktop, plus gpu_program_ready(prog, wait?) for polling or blocking. For recording, I need to be careful: if a pending program gets recorded with a rid when it's still in-flight, then recorded again at finish, I'd get a duplicate program chunk with a new rid — functionally harmless since draws reference the latest rid, but wasteful, so I want to avoid double-recording at finish time.

I'm thinking the fix is to tag programs with a recording-generation counter (rgen) set alongside rid in apr_gpu_newid, so at finish I can check whether p->rgen matches the current recording generation to know if it was already captured in this session rather than a stale one from an earlier record/stop cycle. For a pending program, the uniform enumeration pass at record start can just skip since there's no introspection data yet (nu=0), which is fine since introspection happens later during finish when the program is bound and queried.

I've confirmed that every program handle use passes through one argument check, making `gpu_program_ready` the sole non-blocking entry point, and that a still-compiling program at recording start must avoid being written twice. Now checking how recording IDs are assigned.

I'm checking the finish-time logic: if a recording was active when the program got recorded, the generation numbers match and we skip re-recording, but if no recording was active, the record call just returns early. Now I'm tracing the case where the program was created during an active recording to make sure the generation tracking still holds up correctly.

Since `apr_gpu_gen` is declared later in the file than where I need it, I need a forward declaration — I'll reuse the existing `apr_gpu_rid_of` helper, forward-declaring it near the earlier recording function, and check whether the recorded rid is nonzero for the current generation before deciding to call `apr_gpu_rec_program`. Now I'm writing the C code for this insertion.

I'm also sketching async program compilation for the web, where linking shaders inside a browser GPU process can freeze the page for seconds on large scenes; the approach is to compile and link without querying status immediately, then poll the completion extension and finish the program (link status, uniforms, attributes, recording) once it's actually ready, falling back to synchronous finishing if something else tries to use the program first. Writing shader compile helper...

Still writing program creation logic...

Otherwise I check the fragment shader compile status, and if that's fine too I pull the program link log and format the error message. Then I clean up the shaders, mark the program failed so future readiness checks raise again, and return failure. On success I delete the now-unneeded shader objects, introspect the program for its uniforms/attributes, and register it for tracking unless it's already been recorded.

Thinking about the failure path more: the GpuProgram needs to persist a stored error message so later calls to gpu_program_ready or gpu_program_arg can raise consistently, meaning I need to add fields like pending, failed, pend_v, pend_f, and err to the struct, with err freed during gpu_program_free.

For the free function, I'm deleting the GL program and any pending shaders if they exist, then freeing the error string. The arg function checks pending/failed state, tries to finish compilation, and raises a Lua error with the stored message if it fails, while the raw variant used by destroy skips that check. Now I'm sketching out the Lua binding signature for the async program creation function.

On the web build with parallel shader compilation support, I'm making gpu_program_async kick off compilation in the background and return a handle immediately, while gpu_program_ready lets Lua poll or wait for that compile/link to finish, raising the compiler log on failure; on other platforms async just falls back to the synchronous version.

I'm checking whether this GL_COMPLETION_STATUS_KHR check actually works correctly under Emscripten's WebGL bindings, since the engine already relies on this polling approach elsewhere for draw shader compilation.

I'm also verifying placement order—the static declaration and the macro definition both precede their first use—and confirming the APR player's synchronous program creation path remains unaffected since pending programs are still recorded with their sources and zero uniforms during enumeration.

The introspection code temporarily swaps the active program and restores it afterward, matching the prior behavior, and I note the async path doesn't update the GL program memory counter, which is acceptable. I still need to register the new Lua functions for async program creation and readiness checks, and I want to glance at the main loop's polling code for reference.

I'm verifying that the introspection function correctly binds the program id and queries active uniform counts, matching how the original code used the local variables and program handle before restoring the active shader.

I'm also checking that string escapes in the Python triple-quoted shader sources translate correctly to C (tabs, newlines, version headers), and confirming that dependencies like gpu_live_add, GPU_OBJ_PROGRAM, handle_arg, and the Emscripten-only parallel_shader_compile are all declared before their use points in the reorganized file.

On the desktop build, gpu_program_begin will go unused outside the async path, which just triggers a harmless MSVC unreferenced-function warning at a higher warning level — not a blocker. I'm ready to apply the patch and run build.bat, having already made sure no other build processes are locking the output to avoid an LNK1104 error.

The workflow/claude changes aren't mine, so I'll leave those alone. To build the desktop app I need to run build.bat, which in Git Bash means invoking it through cmd, and this will take a minute or two to complete.

The build.bat call isn't being recognized, possibly because cmd started from a different working directory. I should try the full path instead, and recall that CLAUDE.md suggests running it via Git Bash with `./build.bat` from the right directory, so I'll try that approach.

Desktop build finished, so now I want to check for warnings in the newly added code, checking lines around 12400-13100.

I notice the build-web-engine output was dated Oct 10, likely matching the deployed version, but now it's rebuilt with my change. I need to be careful here since build-web.sh copies anchor.wasm into renderer/build-web, while deploy.sh without --engine only deploys the engine separately, so I should check what state that leaves things in.

I'm also wondering whether the Oct 10 build actually matched source HEAD at that time, since later engine commits (like the FX voices change for megablock) weren't deployed yet — so the local web engine now likely bundles all those intervening changes plus mine. I should also look into what the desktop warnings at lines 12700, 12813, and 12836 actually refer to.

The strdup deprecation warnings match the existing code, so that's fine. Now I should run the replay-test/check.sh byte-compare test in the foreground with a long timeout since it might take a while.

The replay check passes, so now I'm moving to the game side changes in lich-survivors, specifically updating Renderer:program to handle pending async shader compilation—waiting on it at first use if it's still compiling in the background.

I'm also sketching out program_async, which kicks off compilation without blocking (useful for web, where it compiles in the background), and program_ready, which checks whether a pending compile has finished. I notice the engine's gpu_program_arg actually resolves pending compiles automatically whenever the program is used in a draw or set call, so I'm questioning whether the explicit wait in Renderer:program is even necessary.

For the boot sequence, I'm feature-detecting whether gpu_program_async exists; if it does, I submit all 53 programs asynchronously at startup in warm order, then poll program_ready each frame for the intro subset until they're all compiled, at which point the intro flag clears. To avoid polling overhead, I'm planning to track an index so only the next unready program is checked each frame rather than all forty.

I'm also considering whether submitting all 53 compiles simultaneously could overload the GPU process with contention, versus staggering the "later" 13 programs slightly after the initial 40 to prioritize the intro set finishing first.

Writing the async draw intro branch...

I'm checking that once the ready programs are removed and the intro counter hits zero, the render accumulator resets properly, and noting that a compile failure will just surface as an error like before. The benchmark timing list only applies in the non-hosted path, so host emulation needs separate handling there.

Replay check passed — all 160 frames matched identically across both runs, including seeking. Now moving to the game side: with `gpu_program_async` support, boot submits all 53 programs at once and the intro ends once 40 scenes report ready, while the current live engine lacking that feature keeps the existing one-per-frame intro.

I'm confirming the submission order is correct since G.warm is sorted with the most-wanted entry at the end, so popping from the end submits it first, matching the intro loop's expectation that programs complete in roughly that order.

Also checking that async compilation on the web doesn't stall other draw calls, since ANGLE compiles on worker threads, meaning the site can keep rendering the intro while 53 programs compile in the background. And webbench should already be using the rebuilt engine since it pulls from build-web-engine output.

Intro time dropped dramatically to 1.1s from 4.6s, and submitting 53 programs took just 103ms. Early frames look smooth, with a worst case of 170ms around 1.3s and only two frames over 50ms, likely from a late-finishing GPU upload. I'm now checking whether the page stayed responsive throughout the intro by looking at how each frame's draw call returns early.

I should confirm this is call should hit ~60fps, though I haven't directly measured it, but there are no blocking calls, so it should be fine. I want to verify the desktop digest stays unchanged since my edits were hosted-only — renderer.lua just adds new functions, while boot.lua and main.lua branches only apply in hosted mode. I'll run a digest and anchor check, then simulate the desktop path where program compilation is synchronous, meaning all 53 programs compile at boot in about 0.4s and the intro ends right on the first draw. Finally, I'll run the packs and fixes probes quickly to confirm nothing errors out, since the site's renderer uses the same shared engine build.

Background compiling cuts intro time from 4.6s to 1.1s, with smooth playback afterward (only 2 frames over 50ms in the first 8s, worst case 170ms). Now verifying the standalone game stays bit-identical and that site flows still pass on the new engine.

I'm seeing an undefined global warning about gpu_program_async/ready, which seems tied to how the anchor check validates against the engine's generated meta file versus the game's own copy of the anchor module — I need to figure out if the game has a separate, outdated meta declaration causing the mismatch.

The digests still match, and the three new warnings are the same `gpu_set` type as before, caused by the game's engine declarations predating the GPU layer. I'll re-sync the site copy and rerun the site checks on the new engine.

All tests pass, with the desktop intro loading instantly since everything compiles at boot. I still want to verify the old engine path without async GPU programs still works correctly, since the intro branch in main.lua was restructured — I think I can simulate this on desktop by faking the relevant flag.

I realize I could actually test this properly: the old wasm build is committed in git history (anchor fb56cf7), so I could extract it and run webbench against that old engine with an env override, which would verify the fallback against the engine the live site is actually running, though that old build lacks the newer FX voices.

Let me find the right commit holding the deployed build-web-engine and extract the old anchor.wasm from it into a scratch directory.

Both site flows pass on the new engine, but the live site still uses the old web engine lacking `gpu_program_async`, so the fallback path needs to work there too. I'll pull the old engine from git history to benchmark the hosted boot directly.

The deploy script reveals the live wasm matches commit fb56cf7, which has the 43682421b8 hash. I should extract that commit's anchor.js and anchor.wasm into scratch/s17/engine-live/, but since webbench expects specific filenames, I'll add a WEBBENCH_ENGINE environment override in build.py to point at the correct engine path.

I'm also noting that the build-web-engine directory is tracked in git, so committing my rebuild would make it the new committed engine — consistent with past practice of committing after rebuilds. The renderer's build-web.sh copies engine artifacts locally, but deploy only uses the new engine if I pass --engine, so the live site stays unaffected unless I explicitly choose to deploy it. Let me go ahead and extract the files and run the test.

Good, the fallback works on the live engine too—intro at 4.65s and smooth afterward—confirming the game runs fine on both engines, including the old one despite missing FX voices. Now I should check the docs for gpu_program_async and gpu_program_ready entries to see how they're documented.

That assertion failure is likely due to a whitespace or line-ending mismatch — the docs file might use CRLF. I should check the line endings and normalize before comparing.

I notice the line endings are mixed and my spacing on the gpu_program_uniforms line probably doesn't match the actual file exactly. I should switch to using the Edit tool instead of trying to match the string manually.

Checking ENGINE_API.md, there's no GPU section, so I'll skip that since the generated bindings cover it already. I should update the RECORD 83 entry with the async addition, and add a note to REDESIGN 48 showing that an engine deploy cuts the 4.6s intro down to 1.1s, plus the memory impact.

Then I need to check what files actually changed across the three repos: anchor.c and the rebuilt web-engine artifacts plus docs in the engine repo, renderer/boot/main and the webbench tool plus RECORD.md in lich-survivors, and just the REDESIGN note in a327ex-site since the game copy there is generated and untracked.

The shader-prelude.json change seems fine as part of the rebuild. Now I'm checking whether the commits 32115b0 and 6d4c98a actually modified anchor.wasm after fb56cf7, since that would determine whether the engine's FX voices claim holds up.

The committed build does appear newer than live and includes all engine changes since the earlier commit — FX voices, replay video fix, and the mine fix all check out. I'll go ahead and commit the Anchor engine files only.

I should update project memory to reflect 83b, and briefly note the new API addition in the lich dream game project file.

Since the user approved deploying everything including the engine, I need to revisit the REDESIGN 37 comparison, which captured 11 pages on desktop builds of both the old and new engine renderers and found them pixel-identical. I need to figure out how that comparison was done previously—likely using the pages_probe.lua and build_pin.py scripts—and then build a desktop executable of the old engine from its source commit to replicate the process.

Then I need to capture and compare pages between both engines, and handle the push/deploy flow: the site needs to be pushed to prod as part of deploying, while the game repo and Anchor repo pushes can likely wait until session end per the usual convention, since the user's "push and deploy" request seems focused on the site deployment itself.

After deploying, I should verify things are live by curling the engine files and checking that the admin data packs exist on the VPS, confirming the new wasm build is referenced correctly and that deploy.sh reports success — plus run the required smoke test per the push policy. Time to start by updating the plan.

I'm thinking I can use build_pin.py to build the desktop engine for the given pin hash, which should already exist since replay videos build engines per pin, then run pages_probe pointing ANCHOR_ENGINE_BIN at that built executable.

For comparing the 11 pages, I'll use PIL's ImageChops.difference with a bounding box to detect pixel differences between the old and new engine renders. I need the renderer launched via `anchor drive start .` with ANCHOR_ENGINE_BIN set appropriately, and since the artifacts page picks a random cover, I should pin ANCHOR_SEED=1 for both runs to keep comparisons fair. Time to actually run build_pin now.

I've identified the approach: build the desktop engine matching the live web engine, render the same 11 pages on old and new engines with identical seed, and compare pixels. Now I'll build or locate the pinned old engine.

It looks like a git worktree got created in the anchor-pins directory and the build succeeded this time, printing the pin reference and executable path. I'm noting that the worktree location matches the replay-video pin store path.

Now I need to capture pages with both old and new engines, pointing at the renderer dir as the game, setting ANCHOR_SEED and ANCHOR_ENGINE_BIN, and routing output to the scratch dirs for old/new. I should remember to set A327EX_SITE like run.bat does, and unset any stray SITE_UNLOCK_TEST-type env vars before running.

I should double-check whether the old instance actually used the old executable, since ANCHOR_ENGINE_BIN can override which binary anchor drive start picks up. A quick type check on something like gpu_program_async in each instance would confirm this, but I'll verify that after I finish comparing the pixels.

I should confirm the old run actually used the old executable—checking that gpu_program_async evaluates to nil would verify this, and I also want to make sure the frames aren't blank, meaning pages actually loaded. Let me quickly test both by starting an instance, evaluating, then stopping.

I've confirmed the old run used the old engine and the new one the updated engine, with both frames containing content. I'm also noting that the web engine comparison spans changes since that earlier commit, including the FX voices work, and that the desktop comparison aligns with REDESIGN 37's methodology. I'm also considering that Phylactery on the site will now pick up the FX voice engine, since the game's audio previously relied on a plain-voice fallback.

With FX voices now present, the game's 3D sound on the site should behave like desktop — a positive change worth noting in the handover. Next I need to re-sync and re-pack the game (already done after the async edits, but I'll rerun it since it's cheap and idempotent), re-run the data conversion to be safe since the Released field was added, then push the site to prod and run deploy.sh — but first I want to check the memory note about the new push hook to confirm the correct order of push, lock, and deploy steps.

Confirmed the new run includes `gpu_program_async` with real frame content, unlike the old one. Now checking memory's note on the site's push hook and deploy order before pushing.

I should push to prod main first since that triggers the post-receive smoke test and live restart, then run deploy.sh with --engine and --data — anchor.js stays plain until that engine deploy handles the hashing. Checking the dirty guard: the renderer's uncommitted .py files are excluded and media-meta.json isn't code, so both pass, and I'm now confirming what else the --engine flag needs to rebuild.

My plan: sync and pack the game, convert --changed; push to prod main for the site; run deploy.sh --engine --data in the foreground with a generous timeout since it takes several minutes; then verify the live loader points to the new anchor wasm, confirm the game packs and manifest exist on the VPS, and do a boot sanity check via curl against the homepage for ASSET_VER and the health endpoint since I can't use a browser directly. Time to execute.

Old boot packs got pruned and the latest one is current. The zero changed pages makes sense since the cache version bump already triggered reconversion earlier. Time to push.

I've deployed the engine, renderer, and data files, but I'm checking whether the "14 changed files" sync actually included the ~95 MB game packs, since that count seems to cover packs, manifest, game files, and the admin index together. I want to verify directly on the VPS by listing the admin games directory for lich-surv.

I need to confirm pack md5s match the manifest, check that the live homepage HTML references the new engine build, hit the health endpoint, verify the wasm md5 on the VPS matches my local build, and confirm the admin pack is properly gated (404 without cookie) via file presence checks over SSH.

Deployed the updated renderer with `anchor-e59343f9aa.wasm`, and all loader files checked out. Now verifying the game's packs and manifest made it to the server intact.

With everything matched, I want to verify the live site is healthy and that public pages are served by the new engine, checking the homepage for the right asset version and health endpoint. Testing the admin-gated pack delivery would need a cookie I don't have, so I'll skip that and trust that the file exists and nginx is configured to serve it correctly.

Nginx's gzip_types and default content-type settings should handle .pack and .lua files fine as octet-stream or plain text, so that's not a concern. Now let me check the health endpoint.

Curl isn't a browser so it shouldn't trigger his download manager the way headless Chrome does — that's consistent with earlier behavior in this session. The live checks look good: home returns 200, engine-boot references the new hashed files, the wasm file returns 200 with the correct local build size, and health checks out. I still can't confirm the boot actually works inside a real browser though.

The engine deploy was already verified across 11 pages on desktop, so the main remaining risk is web-specific behavior — the hosted game needs to actually test the new engine's FX voices in-browser. I should record the deployment in REDESIGN 48 and update memory to reflect the new site engine hash (e59343f9aa), since the index line still references the old one. I'll commit the REDESIGN note locally without pushing now, since the end-of-session flow will push anyway, and I need to double check whether the build-web-engine files from the deploy's engine rebuild match what's actually committed.

Now I'm checking whether the deploy's rebuilt wasm matches the one from my earlier build — if the hash e59343f9aa is just the md5 prefix of the wasm, I just need to verify git status shows no modification to build-web-engine, confirming the committed build is identical to what got deployed.

Live site checks pass—home page, health check, engine-boot.js, and wasm are all serving the new build correctly. I'll log the deploy and verify the rebuilt engine matches the committed version.

Confirmed the committed engine matches the deployed one, so now I need to record this in REDESIGN 48 and decide whether to push the doc-only commit—pushing is harmless but keeps prod in sync and avoids deploy.sh flagging local as ahead of prod on the next deploy check.

I also need to update MEMORY.md, since the site redesign line still references the old engine hash "43682421b8" and should reflect the current one, plus mark project_lich_dream_game as deployed.

Looking at this continuation on the live site, there are three issues to address: audio stuttering on certain events, the ending sequence where too few snakes spawn to properly surround the egg, and a WASD movement bug where directional input locks up and doesn't release cleanly. For the ending, I'm thinking of spawning extra snakes offscreen so they arrive quickly and cover the egg without a long wait.

The movement bug likely stems from a missed key-release edge — if the cursor leaves the game area while a key is held, key_is_down might report false and the held-state tracking (set on press, cleared on release) never gets its release edge, leaving the direction stuck until the key is pressed again. That matches the reported symptom exactly, where releasing a key doesn't stop movement until it's pressed once more.

Another possibility is a timing mismatch: if the game's input polling runs less often than the engine's edge detection (e.g. 60Hz game ticks inside 120Hz engine updates), a release edge could land on a frame the game never checks, dropping the event. The more robust fix would be to derive movement from the live key-down state each tick rather than relying on edge-tracked held flags, so I want to look at the actual key-handling code to confirm.

For the separate stuttering issue, I'm now considering whether first-time costs like sound loading could be the culprit when something happens for the first time.

So sound_load likely just stores the encoded bytes, and the actual decoding happens at play time — meaning if each play creates a decoder and decodes the full file with MA_SOUND_FLAG_DECODE, that's a recurring per-play cost rather than a one-time hit. I want to trace through the engine's sound play path to confirm this.

I should also check whether programs still compiling get force-finished (with cheap introspection) on first use, and whether textures are uploaded lazily on first draw, since either could explain a late hitch.

For textures: GPU uploads likely happen at first use, and events like the ending sequence build their meshes at that exact moment — the egg-shatter effect creates 18 curved shards right when it breaks, which is a CPU cost that would show up on desktop too. GC pacing (gcpace) is allocation-driven so that's another possible contributor, but I really need actual measurements rather than speculation.

Looking at the hosted webbench results, the scripted scenario (walk-in, waves, all six powers, 30 seconds) shows p99 around 28ms with occasional spikes to 36-51ms — nothing dramatic. But that bench still processes audio even with muted playback flags, and sounds load at boot in that emulation. The real discrepancy between the live site and the bench must come from extra factors the bench doesn't have: the live site also renders the surrounding page/UI, and there are additional asset packs loading that the bench doesn't include.

I'm realizing the ending sequence specifically isn't covered by the bench scenario, and that sound files arrive via a reload burst, and that GC load is shared across the whole page on the live site rather than isolated like in the bench.

I want to build an extended bench that runs the hosted emulation all the way through the ending — removing powers, snake coil, death, hatch — and logs any frame over 50ms along with what sounds or events fired that frame, plus the PROF section timings. There's already a classification system in bench.lua for long versus okay frames, so I'll extend it with a spike log that records audio events per frame using the existing event logging, combined with per-frame PROF deltas.

Before building all that tooling, I want to sanity-check a cheaper hypothesis on desktop: that sound loading itself is expensive when a reload burst hits — 124 files being loaded in a single update pass, each requiring a file read from the virtual filesystem plus decoder header initialization, could add up to a hundred-plus millisecond hitch roughly 5 seconds after start. That lines up with what he described — stuttering specifically when events or sounds trigger — suggesting the decode cost happens right at play time. I should go look at the engine's sound loading and playback code directly.

So the release detection depends on key_is_released only firing when capture is active — if the mouse leaves the game area while a key is held (since capture is hover-based), the subsequent release while uncaptured never registers, leaving that key stuck as "held" forever.

Since the game runs via fixed-step updates regardless, that's not the issue; the real culprit is normal gameplay patterns like moving the mouse to click or open inventory while still holding W/A/S/D. A robust fix would re-verify each held direction every tick against the actual key-down state rather than relying solely on release edges.

But I need to be careful: the harness that drives digest tests likely injects keys through the held map directly, not through real event listeners, so switching to a level-based check (recomputing movement from key_is_down each tick instead of edge-triggered held flags) could alter behavior for the desktop build and break digest parity with the reference implementation.

But if the harness sets `held` directly without keys being down, clearing it this way would break things—I need to check how GAME.step actually injects keys before relying on this fix.

Found the bug: movement is edge-triggered, and releasing a key while the cursor is off the game frame means the release never registers, leaving the character walking indefinitely. I'll check how the test harness injects keys before making any changes, to keep the digests valid.

Since the harness relies on script_keys with overrides held, the level check won't actually affect the digest, so I should place the fix in input_update right after the release loop.

Setting an existing table field to nil mid-traversal with pairs is safe in Lua, so that's fine. I'm also wondering if the real behavior change is that when the cursor moves outside the game rect while a key is held, key_is_down now returns false, clearing the held state and stopping movement — whereas before it would keep moving even off-frame.

Since capture_keys only grants keys to the game while hovering, and the hosted game fills the window width, the cursor is normally over it, so that distinction may not explain the stuck issue. I should check how often the game's update is actually called relative to the site's loop, since missed edges there would be covered by the level's own key-up check regardless.

Now I want to trace the ending logic around snake coverage — specifically what triggers the win/end state when all powers are depleted, since this time the sequence ended without enough snakes spawning to surround the egg. I need to look at the coil/won logic and the wave spawning once powers run out.

The hold flag means once triggered, no new waves spawn — so whatever snakes remain on screen are all that's coming. If too many were killed off before that point, coverage might never reach the win threshold, which raises the question of how the round actually ended without enough kills.

Tracing further, the camera's zoom factor follows coverage directly, easing toward the target as END.level climbs toward 0.97, so if coverage stalls short, the camera shouldn't fully arrive either. I need to check whether the sequence can still trigger the death/hatch outcome at partial coverage, so I'm looking at the seq_tick logic around where silhouettes begin and resolve.

Found it—the snakes module gets held from the first grip (`snakes.hold`, no new waves), so coverage stays sparse since only existing snakes can coil. Now checking the sequence's timeline to see what cut it off at partial coverage.

I realize the sequence timing is tied to coverage progress rather than snake count, so the death sequence proceeds even if coverage stalls around 50-60% with too few snakes — the egg "ends" without ever being properly surrounded. I need to make the outcome depend on actual coverage being high enough, not just elapsed progress.

To fix this without adding much extra wait time, I should check at sequence start whether enough snakes are coiled or inbound, and if there's a deficit, use the existing gather helper to pull more snakes in from nearby offscreen positions (similar to how the ending pool brings snakes in from 4-6.5m out, staggered). I need to check whether that spawn radius is actually outside the camera frame or if it would visibly pop in, and review how spawn points are chosen to keep arrivals hidden until they're near the egg.

I found that the ending triggers on a timer once the egg hits half coverage, but with too few snakes at the first grip, coverage stalls and the ending still fires prematurely. I'll fix this by counting active snakes at that moment and spawning any missing ones just off-screen so they arrive in time—checking `snakes.gather` and the spawn points now.

I'm figuring out where to spawn snakes just outside the room camera's visible frame, so they appear to arrive quickly from offscreen rather than popping into view—using the camera's position and viewing angle to estimate the edges of its field of view.

At the start of the sequence, I need to count how many snakes are already committed to coiling versus still approaching, then compare that to the number needed for a satisfying near-full coverage before the ending triggers (based on past rounds where 6-7 snakes achieved ~97% coverage). If there's a shortfall, I'll pull additional snakes from the pool and spawn them at the closest viable offscreen points so they arrive in time without making the player wait longer than the current pacing allows.

I also realize snakes.hold being true means more don't arrive — I should keep topping up the committed count during the sequence (every second or so) until the win condition or death, counting both pooled snakes and ones still in flight with spawn delays. For NEED, round 36 suggests winning happens around 97% shell coverage with 6-7 snakes roughly 15s after the first coil, which aligns with the ending test using gather(8, ...).

With 8 total snakes, all alive ones eventually head to the egg once powers are gone, so committed equals 8 minus whatever's still pooled — and the fix is to immediately pull all pooled snakes from their offscreen positions at the start of the sequence rather than waiting, since holding without new waves means the pooled snakes never arrive in time.

Checking timing: silhouettes start fading around 48% coverage with a 12s fade and 2s hold, roughly 14s window, while offscreen snakes at 4-6m away moving 1.0-1.35 m/s should arrive in 4-6s plus coil time, so coverage should hit the 97% win threshold in time to trigger the camera completion. I'm planning to implement the offscreen spawning logic in game.lua using room_cam.

Found the bug: once the first snake grabs the egg, waves stop spawning, so any dead snakes left in the pool never return, stalling the coil if too few are alive. I'll fix this by sending every pooled snake in from just outside the camera frame as soon as the sequence starts and each second until the egg's covered, and I'm now checking how to test if a point is on screen.

Since the camera moves during this sequence, I should use the current world camera for the offscreen check rather than the room camera, since the view shifts as it eases into the sequence frame. I need to account for margin too, making sure the snake's full 4.4m body trailing behind the head is spawned entirely offscreen, away from the egg.

I'm extending the gather function to accept an optional filter callback, then writing a send_the_rest helper that projects spawn points through the active camera to confirm they're outside the visible frustum before releasing pooled snakes. The ray-stepping approach from radius 3 to 13 should be cheap enough to run once per second without performance concerns.

I'm checking that this only applies to the varied/hosted game path, not the lich room sequence, and confirming the ending test's existing gather call stays unaffected since it passes no filter. I'm also double-checking edge cases like snakes that died mid-burst getting properly pooled, and snakes still wandering toward the egg rather than fully idle.

Time to go ahead and implement this.

I'll extend `snakes.gather` with an optional acceptance filter and have the ending use it to test for off-screen spots against the current camera. The standalone `LICH_ROOM` path never reaches this code, so its digests won't be affected.

I'm considering the egg_start edge case — since SEQ dies on tick 1 under this setup, my gather at t=0 would fire before death, potentially sending all pooled snakes right as burst_all triggers, which could expose a loophole in his egg test.

To fix this, I need to add a guard that skips the gather step when egg_start is active, flagging SEQ.egg = true and excluding that condition so snakes don't get caught mid-crawl during the hatch burst.

Found that the egg test start also triggers the sequence open and would catch snakes during its hatch tick — I'll exclude that start from the block to avoid this.

I should verify the ending fix with a probe test: run a normal game with a fixed seed, kill several snakes with powers active, then strip all powers once few remain, and track pool counts, coverage over time, win status, and timing. I want to compare this behavior before and after the fix to confirm the change actually matters.

For the probe, I'm planning to use the game harness's stepping and state functions to run the fight phase, trigger removal of all powers, then log coverage, coiled state, pooled snake counts, and death/win timers every second until resolution. I need to check whether the old code shows the stall by comparing runs with and without the fix isolated to just the relevant files, and I should confirm how the harness exposes the pooled wave data before writing the actual probe script.

I'll run a before/after check on the ending: simulate a 40-second fight using all six powers so dead snakes build up in the pool, then release every power and log coverage, pool state, and the timeline until death. First, let me check which harness calls are available.

I realize GAME.state lacks coverage and grips info, but GAME.ending() returns those fields including coiled, won, coverage, and crawling status. I should update my probe to pull from GAME.ending() instead.

Comparing before and after: coverage used to cap around 0.89-0.91 without winning, now it hits full coverage and wins at 32 seconds while death still occurs at 35 seconds. The "alive 20" figure suggests the snake pool is larger than 8, so gathering sends from the pool each second using min(8, pool size) rather than being capped at exactly 8 snakes.

That's causing overkill — too many snakes piling up alive and coiled. I need to cap sends to just the deficit: target 8 alive total, so deficit = max(0, 8 - alive), then gather only that many. GAME.snake_count would need to count snakes that aren't pooled and aren't dying, including ones delayed-to-spawn, which correctly counts in-flight snakes toward the deficit. Since there's no existing snake_count function in game.lua, I'll compute the count directly from snakes.S by filtering for non-pooled, non-dying entries, then use that for the deficit calculation.

The fix resolves the coverage stall, but it overshoots by spawning too many snakes since the pool exceeds eight—I'll cap it so it only tops up to eight alive at a time.

I need to add an extra closing `end` for the new if-block, since the current closing lines only account for the outer if statement.

All three seeds produced exactly 8 alive with the egg covered before death, and death timing stayed consistent. I still want to verify visually that spawned snakes enter from offscreen rather than popping in — since the camera moves during the two-shot, I need to check whether spawn locations chosen at send time (with the staggered delay) still read as offscreen once they actually appear.

I'm fairly confident this holds: the narrower two-shot FOV brings offscreen positions closer to the egg, so snakes should appear quickly without looking like they popped in.

Now turning to the stutter issue — possible causes include first-play sound decoding hitches, an asset reload burst, garbage collection, or heavy lazy GPU/physics creation at the moment of death (building the Box3D physics world and nest prism grid right when the egg phys system initializes).

Another strong candidate: silhouette shader programs get added directly to the shader library rather than through the indexed warm-compile list, so they likely compile lazily and synchronously the first time they're actually used — which could line up exactly with the stutter happening near the end, alongside the special-case double-sided crack program compiling on demand when the egg cracks.

I think the right move is to actually instrument this empirically rather than keep reasoning abstractly — hook into the renderer's program compilation call on desktop and log every first-time compile along with the game timestamp across a full playthrough. That would reveal every lazily-compiled program outside the warm index, which are exactly the candidates for web stutters. I should also hook the global gpu_program/gpu_program_async entry points broadly, since other modules like post-processing, silhouette, and warp effects might call them directly outside the indexed system.

I'm also planning a "spike probe" approach: step through engine_step in a standalone run, measuring wall time per step with perf_time, flagging any step exceeding a threshold (say 25ms on desktop), and cross-referencing those spikes with what compiled or played in that frame — hooking sound_load and sound_play_fx/sound_play alongside the program compiles. The caveat is that desktop shader compiles are much faster than web, so the absolute numbers won't transfer, but relative spikes should still point to the same culprits.

I'm thinking the better test is extending webbench itself: adding a per-frame spike log (threshold ~50ms) that reports game time, programs compiled since the last frame, sounds triggered, and PROF sections, plus extending the bench scenario to continue past the measured span into the ending (removing all powers, tracking through death/hatch) since webbench's host emulation should approximate real site behavior. Plan is to start with the cheap desktop probe to catch lazy compiles and heavy steps, then move to webbench with spike logging to quantify things for the web case.

The ending now works correctly across all three seeds, so I'm marking it done and moving to the stutter issue. I suspect it's caused by shaders compiling late, the egg physics world being built at death, or sounds decoding on first play — I'll confirm by running the game headless with program creation and sound playback hooked to log exactly what happens during each slow frame.

I should double-check whether other modules might capture gpu_program locally rather than referencing the global at call time, since that would affect whether my hook actually takes effect — I'll let the probe confirm this. Also need to account for standalone runs where the environment isn't hosted, meaning the boot process compiles fresh.

Programs created during play should just be those outside the indexed set since the indexed ones load lazily; on hosted runs it's the same set plus whatever gets submitted asynchronously, so the list stays consistent either way. Sound loading follows a similar pattern — standalone loads everything at boot, play only triggers reloads. Time to run with LICH_SEED=7.

Desktop averages 10.53ms per step, but there are spikes from five programs created lazily during the ending sequence—shader compilations at the final moments and death/hatch events taking up to 83ms on desktop alone. On web these could balloon to 100-400ms each, causing a stutter right at the climax, so I need to pre-warm these shaders earlier instead of compiling them on demand.

I'm identifying the specific program keys involved (silhouette flat/composite variants, the cave egg world shader, silhouette clip) and figuring out how to extend the boot-time async warming list to include them, since they're currently only added to the library lazily via silhouette.add_programs and aren't discoverable through normal iteration. I'll hardcode these five keys into a later-ranked warm list—not needed during intro, but compiled asynchronously well before the ending actually triggers.

Thinking further, I realize the same gap exists on desktop: the warm-up only checks the index, so these silhouette programs would still compile lazily at the death screen, causing an 83ms hitch even in the browser version. Since this doesn't affect replay determinism or the game-state digest, I'll extend both the hosted and desktop warm-up paths to include these extras. Separately, I'm puzzled by a cluster of frames around 46 seconds with elevated step times but no corresponding events—possibly a heavy group attack or a GC pause during the fight, worth investigating against the desktop baseline timing.

For the slow steps I spotted, I want to instrument with the profiler, snapshotting its per-section timing table before and after each slow step to see which section dominates the cost, since the sound playback and lich death events don't fully explain the spikes on web.

I should also check whether sound_play_fx decodes the whole audio file every time it's called, so I'm going to look at the engine's sound_load/play code to see if decoding happens per-play rather than being streamed or cached.

Desktop testing shows five uncached shader programs (silhouettes and the cracked egg) causing synchronous compiles at the death and hatch moments, which explains the end-of-run stutter on web; there's also an unexplained 40–68 ms burst mid-fight around 46s I'll investigate by section. Next I'll check how the engine handles sound playback, since re-decoding audio each play could be costly on web.

Each play call initializes a fresh Vorbis decoder from memory, which means parsing setup headers and rebuilding Huffman codebooks every time — that's roughly 0.5-2ms on desktop, but could be 2-5x slower in web wasm environments.

On web specifically, miniaudio's Web Audio backend runs decoding inside the audio callback, and without threads in emscripten that decode work lands on the main thread periodically — so more concurrent voices means more decode cost piling into those callbacks. A burst event with many layered sounds could realistically cost tens of milliseconds, not just on first play but potentially each time.

To actually quantify this I'd want to extend the bench script with spike logging — flag any frame over 50ms and record what happened in it: programs created, play counts, and profiling section deltas, then run through the existing scenario (powers on, waves, 30s span) plus an extended phase removing all powers and continuing through the hatch sequence to catch spikes there too.

I'll make the spike log always active in bench, printing a summary at the end, with the extended ending phase gated behind an env flag. But first I should fix the known issue with the 5 lazy programs, and chase down the 46s cluster on desktop by enabling profiling from the start and printing the top sections for any slow steps.

I'll measure web performance next, starting with the mid-fight cluster on desktop broken down by the game's profiler sections, since audio decoding runs on the main thread and a burst of plays can be costly.

Running with profiling enabled gives different timing but the same determinism, and that earlier 46s cluster didn't show up again, so it was likely an OS hiccup or an artifact of the profiler-off run. I'm now looking at the spikes: one at death (step 7647) around 68ms tied to shader compilation plus ragdoll and physics world creation, and another gc pause in the 17-29ms range.

GC spikes recur at several timestamps and seem tied to allocation-paced garbage collection, where web timing is 2-4x worse causing 50-100ms stutters every 5-10 seconds — likely correlated with in-game events that trigger allocations the GC has to catch up on. I also see shorter spikes tied to hatching and power-removal (items being thrown and creating physics bodies), plus an early spike from snake creation at 2 seconds. I want to dig into gcpace.lua next to understand the pacing logic.

Profiling shows slow steps clustering into GC pauses (18-29 ms, worse on web), his death (~68 ms from an uncompiled shader plus egg physics setup), and smaller spikes (14-25 ms) from power-ups and the hatch. I'm now digging into the game's collector pacing to understand the GC pattern.

I'm realizing that the 20-29ms spikes likely correspond to the atomic phase of Lua's incremental GC, which isn't incremental itself — it has to remark gray objects, process weak tables, and traverse all "grayagain" tables and thread stacks, so its cost scales with how much was mutated during the cycle rather than being spread out.

I'm also noticing the stutter happens right after event bursts (like gore allocating many tables) because a large allocation that tick inflates the debt-based step size, triggering an outsized GC step 4x the allocation size in the following tick. To fix this I want to cap per-tick GC work with a debt carryover, but first I need to measure whether spikes are actually atomic-phase completions (which capping won't fix) versus oversized steps — so I'm planning to wrap the global collectgarbage call in a probe that logs step size, duration, and whether it triggered a cycle-ending atomic phase.

I'll check whether the slow steps are the large allocation-driven steps or an unsplittable atomic cycle-ending phase before making any changes.

I'm puzzled why only 18 steps occurred in a 78s run — it seems GC ticks mostly skip actual stepping while waiting for the heap to grow by the 1.5× + 8MB threshold, and only trigger real work once that growth condition is met.

When that happens, a single step apparently finishes an entire mark-and-sweep cycle on an ~80-115MB heap in one call, costing 21-30ms on desktop (and 60-90ms on web), which explains the periodic spike every 15-25 seconds. I'm trying to figure out why one step call would complete the whole cycle rather than doing incremental work, especially given the GC is stopped and then stepped with specific pause/stepmul/stepsize parameters — it's unclear how 'step' behaves when the collector is in the gcstp (stopped) state.

With stepmul at 100 and debt measured in KB, the work is proportional but gated by the atomic phase at GCSpause. I'm trying to figure out what exactly a step accomplishes when it ends the cycle, particularly the initial steps after the pause phase finishes waiting.

Each tick seems to accumulate roughly 1-2 MB of debt, yet the entire run only takes about 18 steps, meaning each call is doing a full propagate-atomic-sweep cycle on 115 MB in one pass. That's because the debt-to-work conversion multiplies by stepmul/WORK2MEM, so with stepmul=100 and WORK2MEM=16, the effective multiplier is 6.25x the raw byte count, which explains why so few steps cover so much memory.

My guess is the heap is mostly strings or blob data (like geometry float32 buffers), which are cheap to mark since strings aren't traversed deeply, so the whole cycle can finish quickly even though the heap is large. This suggests the GC's incremental design is intended to spread work over many steps, but in practice each triggered step just completes the whole cycle in one shot, then waits again for the heap to grow before triggering another.

One fix would be using `collectgarbage('step', 0)` repeatedly within a small time budget per tick to force finer-grained incremental steps, though I recall that approach having issues on the web due to timer granularity rounding small budgets up to the next full millisecond. I should also consider whether Lua 5.4's generational GC mode would behave differently here.

With generational collection, minor collections are cheap and frequent, but major collections still involve a full sweep — so it may not eliminate the spike, just change its shape. Thinking more carefully about the incremental step mechanics, the atomic phase is indivisible and its cost scales with the gray-again list and weak tables touched during marking, which for a game with heavily mutated per-frame state tables could still be nontrivial even if smaller than a full cycle, while sweep itself is naturally incremental and bounded by GCSWEEPMAX.

The real question is why calling step with a modest debt (679-1807 KB) seems to finish an entire cycle in one call — it comes down to how the step-size calculation converts the step parameter into a work budget scaled by stepmul and WORK2MEM, looping singlestep calls until enough debt is paid off or the state reaches pause.

Given that, the fix would need to drastically shrink the per-tick allocation threshold and run GC steps every tick during an active cycle rather than waiting, though I need to check whether a cycle would still finish quickly enough to keep pace with allocation under those smaller step sizes.

I want to measure how step cost scales -- trying something like 32 KB per step and checking how many ticks a cycle takes and what the worst-case step time looks like. To test this I'll add a cap parameter to the pacing function so I can experiment with different limits.

Still, the actual "work" unit in Lua's incremental collector (how propagatemark counts traversed slots) isn't fully clear to me, so I should just run with different cap values empirically and observe the results rather than reasoning it out theoretically.

I'll make the GC pacer's cap configurable through an environment variable for the probe script, defaulting to some baseline, and also set up a probe variant that overrides the cap value directly before running the benchmark.

Only 18 collector steps ran total, with slow ones finishing an entire cycle in one call (21–30 ms for a ~115 MB heap) because pacing lets the heap grow then requests too much work at once. I'll add a cap on step size to spread cycles across multiple ticks and test a few different cap values.

Even with the 16 KB cap, the worst single step still hits 13.6 ms, meaning that even at that granularity some steps do a lot of work at once — likely because a single table traversal is indivisible, like a huge array of floats representing geometry data in a Lua table.

I'm considering whether to reduce the cost of traversing large tables directly, since in Lua 5.4 the array part scan still runs linearly over every value checking collectability. But maybe the better fix is switching to generational GC mode, where minor collections only traverse young and touched objects — cheap if big static tables stay old and untouched, with only rarer major collections causing spikes.

Looking at the actual numbers though, total GC cost is small (~80-90 ms over 78s) — the real problem is spike concentration in the atomic phase, where tables mutated during a cycle (position arrays, trail buffers) get re-traversed fully, producing the 13-30 ms stalls. I'm weighing two fixes: lengthening the pause between cycles to make spikes rarer at the cost of bigger heap, or switching to generational mode so mutated tables only get re-scanned incrementally.

I should just test it directly — try enabling generational GC and compare automatic minor-collection costs against the current baseline using per-step wall-time measurements, since the automatic pauses won't show up in explicit 'gc' timing sections.

I can override the GC pacer's tick function to a no-op while switching the collector to generational mode, since the game module looks up that function dynamically at call time, which lets me isolate the effect of generational auto-collection in the probe.

Capping alone doesn't solve it—steps still spike to 13.6ms, suggesting indivisible work like a huge table scan or the atomic phase re-scanning big tables. I'll compare three collector setups, including Lua 5.4's generational mode which better fits this heap's mix of long-lived tables and per-frame garbage, by measuring their slowest frames over the same run.

Actually Lua's default incremental GC looks better on desktop now than the paced version—lower p99.9 latency, fewer long frames, lower mean time, and smaller heap, while generational performs worse. I'm recalling that pacing was introduced because the default let large chunks of memory free in a hitch-inducing burst over a couple frames, though that round also changed other GC parameters.

I'm now checking whether the real worst-case stalls (the death/transition moments) are actually caused by GC at all, versus unrelated system compile work. I should test a few incremental GC parameter combinations to see if the differences between modes are even real or just noise, since each test run takes a while and the site's hosting setup may switch collector modes depending on visibility.

I suspect the simplest fix is reverting to Lua's default automatic incremental collector without custom pacing, undoing the earlier paced design — but I need to check if the web's higher per-KB GC cost changes that conclusion, and I'm trying to understand why the paced approach caused one giant step to clear an entire cycle instead of incrementally chipping away at it.

Tracing through the debt accounting: even while the collector is stopped, allocations keep adding to GCdebt since the check that normally triggers incremental work never runs. So after a long pause, GCdebt has absorbed every allocation since the last cycle — meaning the very first step after resuming pays off that entire accumulated debt in one shot, producing the full-cycle stall instead of smooth incremental progress.

A possible fix is calling step with zero to clear the accumulated debt (since that path zeroes debt before doing one basic increment), then resuming normal small steps afterward — effectively using a zero-step at the end of each stop to reset debt before ticking normally.

But stepping back, the automatic incremental mode already measures well (p99.9 around 26ms, few outliers above 30), and it's the simplest option since it's Lua's default behavior. The debt-reset trick for paced mode might actually perform even better, though.

The giant GC debt only builds up during the waiting period, so a potential fix is to zero the debt when waiting ends by calling collectgarbage('step', 0) right at that transition, then let normal per-tick stepping continue. I'll test this as a "pacedfix" variant.

Found the bug: debt accumulates during the collector's pause, so the first step after waiting pays it all off in one go, causing the 20-30ms hitch. I'll try clearing the debt when the wait ends, rather than switching to Lua's automatic incremental collector.

The paced fix is actually worse on worst-case latency, though increment counts stay consistent across runs. I'll switch the GC pacing to rely on Lua's default automatic incremental collector settings (200,100,13) for both desktop and hosted builds instead of the custom approach.

The remaining frame spikes over 30ms seem tied to death/ending events rather than steady-state GC. I should verify this on the actual hosted web environment using webbench to measure p99 and max frame times over a 30-second fight scenario, comparing against the old pacing complaint about multi-frame garbage dumps.

To fix the ending spikes, I'm planning to warm up the five lazy programs ahead of time (both desktop and hosted) and investigate the cost of world creation at death, which seems to include a shader compile step. I'll update gcpace.lua to keep the same module interface while switching the underlying policy, then add the program warm-up list.

Clearing the debt actually worsened pacing, while Lua's default incremental collector still performed best, so I'll revert collection to Lua's automatic mode and precompile the five ending shaders at boot.

Ah, my patch tuples are missing the count value - I need to add that to each one and redo the fix.

I'm confirming that tick exits early when live_kb is nil, since start sets it only after returning. The LICH_ROOM digest shouldn't be affected by garbage collection itself, so I'm checking that separately, then looking at the extra keys involved in ending programs.

I plan to add an EXTRA list in boot.lua covering those extra program keys, warming them via the renderer loop in the non-hosted path, and assigning them rank 400 for background warming in the hosted path—noting that one key duplicates an existing program but that's harmless. I need to find the hosted block that builds G.warm from the index and insert the EXTRA warming logic right after it.

The collector's switched. Next I'll add the five ending shaders to both warm-up paths—compiled at boot on desktop, and submitted to the background compile outside the intro on the site.

I need to double-check the ordering of the rank assignment relative to the sort call, making sure the EXTRA insertion sets its rank before the sort happens, then verify the same pattern applies for the desktop path where I'm adding a similar loop after the index iteration.

I'm comparing the old fallback engine's lazy compilation behavior with the async mode, confirming all programs including the extra one get submitted correctly, and noting that compile order differences and recording order don't affect replay correctness. Now I want to rerun the spike_sections probe on desktop to check the remaining behavior.

The run-to-run variance is notable, but the death step consistently costs 85-113ms even with warmed programs, so that cost must be inside die(): ragdoll creation, eggphys world setup with the floor's nest prism grid, bursting gore for all eight snakes simultaneously, and the lichmask drop.

Now I'm suspicious that the odd 18-40ms spikes attributed to "snakes" aren't really snake logic at all — they're probably automatic GC atomic phases getting misattributed to whichever section happens to trigger them, since the atomic step is indivisible and its cost depends on how many objects need remarking during propagation.

What might be driving that cost is barrier-back behavior: if the game writes to tons of small tables each frame (trail points, particles, vectors), they get pushed onto the gray-again list and have to be re-traversed during atomic. I'm also considering that generational GC mode had more frequent mid-sized pauses but a similar tail of large ones, so switching modes alone may not fix this.

I think the better move is to test this on web rather than desktop, and extend the benchmark script to add an optional "ending" phase after the measured span — triggering the game's cleanup/removal logic — so I can catch death-related spikes specifically in the web build.

Death remains the slow part (85–113 ms in the 'ending' section) rather than the shaders, and with automatic collection now folded into whatever section allocates, the 'snakes'/'fx' spikes may partly reflect collector activity. Since the web is what matters, I'll extend the web benchmark to play the ending and log every frame over 50 ms along with its timing.

I'm adding spike tracking during the measured phase, logging any frame taking over 50ms as a (time, duration) pair. At the WARM+SPAN boundary, if we're in ending mode, I'll skip the DONE print and instead start an ending timer, clear all game entities, and keep recording spikes relative to that start time alongside sequence death info until the sequence has been dead for 12 seconds.

I need to make sure the early return that checks B.done stays false throughout the ending phase so the frame handler keeps running, then wrap the final reporting logic in a local report function to cleanly emit the extra ending lines plus DONE.

I see the issue now—the heredoc halved the backslashes, turning '\\n' into '\n' in the Python source, which became an actual newline in the match string. I should remember that bash-tool heredocs halve backslashes, and I'll use the Write tool for the patch script instead.

I should run webbench on the current code with GC auto and EXTRA warm enabled to check web spikes, and compare against the pre-change gcpace by stashing if needed. I'll bump the timeout to 240s to account for warmup, span, and ending phases.

The fight itself stays smooth with frames maxing at 37ms, but right after giving up at 38 seconds there's a brutal 2-second stutter cluster between 39.8-41.8s with frames spiking to 52-112ms. I'm tracing this to the cleanup sequence — removing everything and queuing power toggles 0.4s apart across six powers adds up to 2.4 seconds, which lines up almost exactly with the stutter window.

Each toggle likely triggers an item drop, which means physics bodies falling with contact point calculations, plus potentially first-time GPU uploads of large geometry meshes for each dropped item — that alone could account for 50-100ms per item on web. I'm also noting that desktop shows similar "items" spikes of 21-25ms at drop time, suggesting the rigid body simulation for six falling items colliding with floor and egg is a real cost regardless of platform, though normal gameplay would spread this out since players remove powers one at a time rather than all at once.

I want to isolate whether the 2.4s cost cluster after remove_all comes from the physics update step (items.update, body.lua collision/contact handling) or from draw-time resource uploads (pass.world/r3.draw), since those are separate profiling sections. I'm also tracking isolated 54-60ms spikes that might be GC-related, and a 101ms spike at death that's likely the die() function, to see if these are separate issues from the item-drop cluster.

The data shows the main fight stays smooth, but dropping the powers causes a ~2s stutter spike matching the desktop item-spawn pattern, pointing to the thrown objects' rigid-body simulation as the likely culprit. I'll dig into that code next.

I'm realizing the per-tick cost is heavy: each body runs multiple substep passes over roughly 56 points, doing matrix transforms plus ground-height lookups, and allocating a fresh point array and cloned vectors every pass—hundreds of allocations per body per tick that pile up as garbage and trigger GC pressure. The ground_y lookup itself could also be costly depending on how it's implemented.

With several bodies running this each tick, that's thousands of floor lookups per tick, which could cost meaningful milliseconds especially on web. But since this is a bit-exact port whose physics feeds into digest-sensitive game state, any optimization—like eliminating the clone allocations by reusing preallocated vectors—has to preserve identical numerical results, not just similar performance.

I've confirmed that dropped objects run roughly 56 contact points with four sub-steps and two passes per tick, and simultaneous falls multiply this cost, matching the observed 2s cluster—any optimization must preserve exact output since this is a bit-exact three.js port. Next I'll check what a floor lookup costs.

I'm estimating the cost of the ground_y noise function, figuring it's a few microseconds per call depending on platform, then working through the per-tick computational load for each body across substeps and contact passes.

Since memoizing floor_f by exact coordinates won't work because points shift each substep, I'm checking whether the existing reuse of FY values between passes already avoids redundant lookups when positions haven't changed, and concluding it mostly does. That leaves the real cost concentrated in the per-substep floor_f calls plus the smaller floor_n contact calculations, totaling roughly 2240 floor_f evaluations per tick across five bodies at 60 Hz.

I'm stuck on the exactness constraint — body.lua must match body.js bit-for-bit since the three.js build remains the parity reference until it's retired, which rules out any interpolated or grid-cached ground_y approximation. The only paths left are either finding a mathematically identical but cheaper formulation of floor_f, or accepting that no safe speedup exists while the parity requirement holds.

Then I realize the digest check only covers LICH_ROOM, not VARIED mode — so I can optimize body simulation freely in VARIED since it's already diverged from the reference path. A precomputed height grid with bilinear interpolation for the floor becomes viable there, since a few centimeters of grid spacing would be visually imperceptible while cutting the per-body cost significantly.

But precomputing the whole grid at load time would be too expensive, so I'm thinking lazy tiles instead — computing small chunks of the grid only when bodies actually land in that area, which keeps the upfront cost cheap. Before committing to this though, I should actually measure whether the floor function is the real bottleneck during the drop phase by probing how much time it consumes relative to the rest of the body update.

I'm seeing that floor lookups average around 1.4 ms per step but spike heavily since they're called for every snake ring, particle, chunk, and body point each tick—one step alone hit 15k lookups, costing 0.22s and even up to 1.05s, which is a major bottleneck.

Weirdly, another spike labeled 'items' at 39ms only had 2573 lookups, so that cost must come from something else entirely—maybe body creation for thrown objects, orb release logic, or floor-clearing searches during item drops rather than the floor lookup itself. I'm tempted to profile deeper inside the items code, but given how much time I've already spent, I should weigh that against just focusing on fixing the actual stutter the user reported.

For the floor lookup cost itself, I'm considering caching ground_y samples with bilinear interpolation in VARIED mode only, since the noise-based terrain is smooth enough that tiny position errors (sub-centimeter) would be visually unnoticeable, while keeping exact computation for LICH_ROOM. Recalculating the real per-call cost, it's closer to 0.6 µs on desktop and maybe 1.5 µs on web, so 15k calls could still add up to roughly 22ms there.

Now I want to dig into the actual stutter window itself rather than just the floor-lookup theory — comparing frame times on web (52-112ms) versus desktop (25-53ms) during the drop, and pulling section-level breakdowns to see what's dominating: items, pass.world, hud, r3.draw, r3.transmission, and snakes costs at different timestamps leading up to the stutter.

Profiling shows 882,000 floor lookups over 4 seconds, with snakes, particles, and gore contributing alongside falling objects, and the worst bottlenecks are power giving-up (17 ms) and objects update (25–39 ms). I'll look at the drop code next.

I'm estimating the cost of the spot-finding search: scanning across angles and distances with a grid of candidate points for each, checking blockage, rock height, and floor position — that adds up to tens of thousands of samples, which is way too expensive to run naively.

Since this logic feeds LICH_ROOM's exact output, any speedup has to produce identical results. I'm computing a lower bound on each candidate's score (from the cheap angle/distance terms before even touching the grid) so I can skip the expensive inner loop entirely whenever that lower bound already exceeds the current best — since the real score can only be equal or higher, this never changes which candidate wins.

Most candidates near the origin with zero badness will dominate early, so this pruning should eliminate the vast majority of wasted grid scans. Next I want to check the throw spot search for the same pattern, confirm body physics floor lookups stay untouched, and instrument caller locations (via the debug hook) to figure out exactly which snake-related calls are generating 15k floor lookups per step during the drop window.

`spot()` scores candidates with tens of thousands of floor/rock/nav queries per drop, but I can prune these by skipping candidates whose best-case score can't beat the current best, giving identical results faster. Before implementing that, I'm tracking down what's issuing the 15,000 single-step floor lookups.

I'm tracing the call stack levels to figure out which caller is responsible for that huge 420k value — it points to items.lua around lines 638-641 and 431, so I need to examine those regions of the file.

I'm tracing the call stack between the two `step(dt)` calls to figure out where floor_f gets invoked — it looks like it's a tail call from the ground_y closure used as the floor function.

That means ~500k floor lookups over 4 seconds trace back to body stepping, dwarfing the smaller counts from snake rings and spot() calls during drops. The optimization angle now is memoizing floor height per exact (x,z) within a step, since each point samples the floor function four times per pass for height and normal estimation.

The bigger opportunity is the two-iteration contact loop inside a substep — if b.x stays the same between iteration 1 and 2, the point positions are identical, so floor_f and floor_n results from iteration 1 could just be cached and reused for iteration 2 instead of recomputed, cutting those lookups in half. I need to double check that contact() only mutates velocities (b.v, b.w) and leaves b.x untouched between the two iterations to confirm this caching is safe.

Floor lookups make up roughly half of item processing cost, so halving them saves about 25% of items time, with the rest being Lua vector math per point. Changing substep/iteration counts would alter physics exactness, so I should restrict that to VARIED-only paths and instead focus on prioritizing fixes by actual web impact, looking at the drop window's frame timings and contributors.

I'm breaking down the contributors: spot() searches per throw (nav queries, ~20-50ms each), body simulations across 6 bodies at 60 ticks/sec doing thousands of lookups plus vector math per tick, and the orb balls adding their own body sims on top of normal gameplay. Since throws happen one at a time and trigger their own spot search plus sustained body simulation, the stutter likely correlates with throw events, so my plan centers on optimizing spot() with branch-and-bound pruning while preserving the existing digests.

For body.step I want to reuse floor values and normals across both contact iterations rather than recomputing them, check throw's search code for similar pruning opportunities, and preallocate the egg wall's L table and clones instead of reallocating each time -- then remeasure with the desktop drop probe and web bench. I'm also curious about the 85ms death step, since die() involves ragdoll creation, egg physics building a grid from floor samples (which calls ground_y repeatedly), and a gore burst across snakes -- I'll profile that separately later, but for now I'm starting on items 1, 2, and 4 by reading through the throw search, contact(), and body code.

I've profiled who's calling for floor height in that 4s window: physics (~500k lookups), snakes (~116k), and landing-spot search (~41k). I'm now reading the contact code to confirm positions stay fixed between the duplicate contact passes, which would let me cache floor heights/normals and reuse scratch vectors in the egg check.

Right, contact() actually moves b.x via the position correction, so positions shift between contacts within an iteration and across iterations — that's why comparing p.x to the stored PX[k] value only matches if nothing moved yet.

I'm considering caching (x,z)→y per point index across iterations, but that only pays off during the in-air phase, since contact phases constantly shift positions and invalidate the cache. Checking whether ground_y itself is the bottleneck — it's cheap (~0.6µs), comparable to the matrix/add operations in body.step, so the floor lookup alone isn't dominant; the real cost is just inherent to simulating bodies until they go still and sleep.

For the hosted/VARIED case, I'm estimating per-body cost per tick and realizing 6 bodies dropping together doesn't account for the 50-112ms web frame spikes — something else must dominate. I suspect the spot() search (floor + nav.is_blocked + nav.rock_top queries, ~21k per drop) explains the bigger spikes, but I'm puzzled by certain 'items' update steps with far fewer floor lookups still taking 25-39ms desktop — possibly orb release logic or GPU upload costs — so I want to break down items.update by sub-part to find the real culprit.

Rather than manually wrapping individual functions, I think a sampling profiler is cleaner: using a count-based debug hook to sample the current function every N instructions during the drop window, similar to the allocation profiler from round 64. This gives an instruction-based histogram of where Lua time actually goes, which should pinpoint the hotspot precisely even though it won't capture time spent in C-side engine calls.

Reusing results won't help much since the contact routine shifts the body's position mid-drop. Instead, I'll profile the drop window directly with a sampling hook that records the active line every 1,000 instructions.

Looking at instruction counts rather than wall time, the drop window breaks down with matrix transforms around 12%, snake tube building 11%, particle effects update around 10%, body physics step 9.7%, and cave ground calculations around 10%. The particle system itself—spawning dust puffs on landings—accounts for roughly 15% when combining update and write operations.

These costs are spread across many systems rather than concentrated in one hotspot, which explains why web performance suffers: six bodies, numerous particles, and snake segments all compound each frame. Given the sample counts translate to roughly 74M VM instructions per second (with wasm Lua running 2-3x slower than desktop), I want to dig into fx.lua's particle update and write functions to see if per-particle instanced buffer writes via set_matrix_at are a meaningful cost center worth optimizing.

The cost is spread out rather than concentrated: object physics, snake tube building, and particle/dust effects dominate when objects drop, while particles, gore, and rag doll handling dominate at death—particles being the biggest share in both cases. I'll dig into the particle system next.

I'm noting that ribbon and point pools rewrite all N entries every frame regardless of activity, which is a constant cost already accounted for—but that's not what's causing the spikes. The actual spikes come from additive bursts like gore and spawn events happening on top of that baseline.

A full performance sweep across every module would be a huge undertaking, so I should focus narrowly on the measurable spike sources: tightening spot() pruning to cut down drop's search time, and isolating exactly what inside die() costs 85-113ms on desktop rather than the whole 2-second aftermath window including gore and ragdoll effects. I want to wrap the specific calls inside die()—snakes.burst_all, ragdoll creation, eggphys—with timing probes to see which piece is actually expensive, which means I need to check how die() is structured and what's accessible to instrument.

The particle pools' per-frame cost is constant and not the issue—the real spikes come from bursts hitting a single frame. I'll dig into what `die()` does in that one frame, focusing on the worst case (85–113 ms on desktop).

I'm thinking through what happens on death: ragdoll creation, dropping the mask, and bursting all 8 coiled snakes into gore pieces simultaneously, which is likely the heaviest cost since each burst creates torn tube segments, wounds, meat, bone, guts, and blood jets. I suspect the 8 simultaneous gore bursts dominate the performance cost compared to the world/nest setup, so I want to measure each piece separately to confirm.

I want to wrap the relevant death functions individually to profile them: RG.create for the ragdoll, the gore module's burst function (need to find whether it's accessible via the game's gore instance or through snakes.burst_all), ep.start for the egg physics world, and lmask.drop for the mask. I'll write a death_parts probe that instruments each of these calls separately to isolate which one is actually responsible for the frame cost.

I'm looking at why the egg physics startup takes 47.5ms on desktop, tracing through building the Box3D world, the nest prism grid, egg body hulls, and the 18 curved shard hulls to figure out whether shard generation happens at init or at break time, so I can find what to precompute ahead of time.

The fix is to defer the expensive Box3D body creation: precompute geometry data like the prism grid heights and hull point sets at a quiet moment (either spread across the first-grip sequence start or right after boot in the background), while only instantiating actual Box3D bodies when the egg breaks, since creating the physics world too early risks interfering with stepping. I should read through the eggphys.start code to confirm where the cost actually lies.

I'm looking at the ground builder's expensive operations: converting the floor geometry blob into a Lua table each call, scanning nearby triangles to compute grid heights per cell, and then building Box3D hulls — all potentially costly for thousands of triangles.

Since the physics world only gets created at death, I could precompute the pure-Lua work earlier, but doing it all at boot would add noticeable startup time. A better plan is spreading the work across frames using a coroutine starting at the first grip of the ending sequence, resuming for only a couple milliseconds per frame during the roughly 15-second coil phase before death — plenty of slack to avoid a stutter.

I need the precomputed ground data to exactly match what the on-demand build would produce, and api.start would then just consume this prepared data to create the Box3D hulls. To figure out where the real cost lies, I should break down build_ground into its pieces — array setup, the triangle/hull-adding loop, and the grid pass — but the hull creation happens in C so a Lua sampling profiler won't see it. I'll add temporary timing marks guarded by a flag directly into eggphys so I can measure each phase, then strip them out afterward.

Egg physics setup builds the nest in a single frame—converting cave floor vertex data to a Lua array, classifying triangles, generating rim prisms, and sampling a height grid—so I'm timing each part to identify what should be moved out of that frame.

I'm also noticing the vertex key string concatenation is creating garbage collection pressure. I think splitting build_ground into a deterministic "prepare" phase that computes hull point lists separately from an "apply" phase that handles physics init and body creation would let me avoid redundant work.

The prepare work could run ahead of death, spread across frames via a coroutine starting at the sequence's first grip, since there's roughly 15-20 seconds before death to spread the computation over at a few milliseconds per frame. The key question is whether results stay identical — since the egg's position is fixed in the nest before ep.start (only visual wobble happens, not actual movement), prepare can safely use that fixed position, and if hulls are added in the same order during apply, the Box3D physics outcome should match exactly.

I'm settling on resuming prepare lazily through a coroutine ticked with a small iteration budget, finishing synchronously in start() if death arrives first, so results stay identical whether computed early or late — this should hold for LICH_ROOM's digest run too. Rather than timing by clock, I'll use deterministic iteration counts (yielding every few hundred triangles, cells, or vertices) to avoid clock-granularity issues. I'm refactoring the ground-building logic into a `prepare_ground` function that yields hull data and friction info, paired with an `apply_ground` function that registers everything and adds hulls in the same order, preserving the same success/failure counting.

Let me now read through the rest of the stone-building code to the end so I can refactor it consistently.

I'll split the nest builder into a "prepare" phase, run it incrementally as a coroutine starting ~15s before the death sequence, and defer only the Box3D calls to the actual death frame—since the output is deterministic regardless of timing, room digests won't be affected. Now reading the end of the builder.

I'm splitting ground construction into a pure preparation step that yields floor and stone point lists, and an apply step that registers tags, builds the ground body, and adds each hull with friction settings and counters.

Now I'm thinking about wiring in a coroutine driver: prepare() creates a coroutine that yields periodically during triangle and grid processing, resumed once per tick from the game loop while the sequence is active, and if start() is called before prep finishes it just resumes synchronously to completion before applying.

I also need to check ensure_array for the floor geometry — it's likely a cached single-shot conversion, so it's fine as one chunk and shouldn't cause GC issues.

I'm splitting the logic: `prepare_ground` handles the pure-Lua work in yielded chunks, while `apply_ground` builds the Box3D body and adds hulls in original order. `api.prepare()` advances one chunk per call, and `api.start()` finishes any remainder synchronously, keeping results consistent regardless of timing.

I'm checking whether the egg's position changes before death happens—since the coil doesn't move it and physics only kicks in afterward, the pre-death position should stay consistent between prepare and start times.

For the LICH_ROOM case, the sequence code returns early since VARIED is false, meaning prepare never runs ahead of time and start computes everything synchronously just as before. I need to find where ep gets created and add a call to prepare it each tick during the sequence, guarding against the egg dying or starting immediately—since if egg_start fires right away there's no time for prepare anyway, so start handles it synchronously as a fallback.

Egg physics timing drops drastically from 47.5 to 6.4ms, with the remainder going to Box3D hull creation for 1686 hulls, while death step runs 79→38ms on desktop and burst_all takes 12ms for eight gored snakes. I'm wondering if that hull creation time could also be spread out by initializing the Box3D world earlier, at sequence start, and adding hulls incrementally across ticks before death rather than all at once.

Only eggphys relies on physics3 (everything else uses custom Lua physics), so stepping an empty world early would be nearly free. Adding static hulls in chunks shouldn't change Box3D's determinism since insert order into the static tree stays the same — though this is risky territory for LICH_ROOM's digest, except that room doesn't run the SEQ prepare path anyway, so it's safe to proceed: roughly 6ms desktop translates to about 18ms on web, which is fine, and burst_all's 12ms becomes roughly 36ms web, plus another ~19ms for the rest of the death step like rendering — acceptable, if not ideal.

I consider staggering the bursts over a few frames instead of all at once, but since the player explicitly wants simultaneous bursts, spreading 8 snakes across 4 ticks (about 67ms) would still look instantaneous enough. I decide to leave it as-is for now, accepting a mild hitch at that dramatic moment.

Now I'm turning to spot() pruning with a branch-and-bound approach, working out a lower-bound score for each candidate spot based on distance and egg-collision penalties so that spots which can't beat the current best get skipped before their samples are even counted — I'm sketching through the loop structure and scoring order to make sure the original "bad" ordering is preserved correctly.

Checking that floating-point arithmetic doesn't break the exactness of this pruning: since bad accumulates as integer counts before being scaled, and the lower bound uses the same formula with a smaller partial sum substituted in, the comparison should stay monotonic and the early-exit logic should match the original algorithm precisely.

Since egg_bad and others_bad don't depend on the grid, I can compute those first and then run the grid loop with early exit, since pruning candidates that can't improve the score doesn't affect which candidate wins the strict minimum. I'll implement this with an edit to the spot loop in items.lua.

Repositioning nest prep brought egg physics timing down from 47.5 to 6.4 ms and the death step from 79 to 38 ms on desktop. Next I'll fine-tune pruning in `spot()` by computing egg/object penalties before the floor grid and halting the grid count early once it can't beat the current best.

I notice my edit left the old loop body still attached to a dummy loop as a hack to neutralize it instead of properly removing it — I should clean that up by deleting the old loop entirely. I also need to double-check the early exit condition's exactness, since the score comparison against the per-row penalty calculation might not match the original scoring formula precisely.

I'll define a helper that computes score_of(n) using the exact same expression structure as the original score calculation, then view the relevant code region to rewrite it cleanly with this consistent formula.

That edit left ugly leftover code and risks a rounding mismatch since the bound and final score compute terms in different orders. I'll rewrite the section cleanly so both use the same expression.

I'm double-checking that my replacement score formula produces identical values to the original, including the conditional term and the order of summing grid and pens penalties.

The early-exit logic also checks out — pruned spots never update the best score since their partial penalty already exceeds the threshold, and the initial huge value ensures the first spot is always fully evaluated. Now I want to verify the digests covering removal and drop logic, and check how much the spot search saves using the drop probe lookups.

I realize the death probe reuses the same running instance since GAME.begin is a no-op if already started, so the timings still make sense — the floor probe's step sequence, then death_parts repeating begin/step/remove_all, landing on a 41.6ms death step. Now I'm checking floor lookup counts in the spot search.

Going from 41,576 to 705 lookups confirms a huge reduction, and the digests still match. Next I want to rerun the web benchmark with the ending included to catch the remaining web spikes.

The web performance shows a big improvement: frame drops over 50ms dropped from 33 down to just 7, and the death frame spike disappeared entirely. Fight sequences stay smooth with a max of 36, though there's still an early frame spike around 144ms that I'm noting.

The remaining drop cluster at 40.5-41.0 seconds (6 frames) likely corresponds to the "remove all powers" bench test dropping 6 objects simultaneously, which is a worst-case scenario compared to real gameplay where objects get thrown one at a time through the viewer. The 100ms frame might be from orb collisions or a particle burst, and the early frame spikes right after the intro are probably GPU uploads for first draws—meshes, textures, the lich's skinned mesh appearing for the first time.

I'm wondering if the culprit is frustum culling: the lich's mesh may not upload until it actually becomes visible on screen, causing that hitch exactly when it first appears. One fix could be a "warm render" during the intro—rendering the scene once with culling disabled so everything uploads ahead of time—so I'm checking whether the renderer exposes a compile-and-upload method for this purpose.

Beyond that single frame, I'm also reconsidering whether the stutters the user described are tied to other first-time events—first gore draw, first lens, first lift ball—since the 30-second fight benchmark shows no spikes above 50ms once those assets are already warmed up.

So maybe the real culprit isn't shader/program compilation at all, since the live site with async compilation already handled that fine. It's more likely the paced GC cycles causing periodic 60-90ms spikes every 15-25 seconds, which lines up with "whenever some events happen"—and that's the issue my auto-GC change was meant to fix.

One other difference: the bench runs muted while the live site actually plays audio, and I'm wondering if miniaudio's decode callback on emscripten runs on the main thread even when muted, which could be adding periodic cost that the bench never captures.

If audio isn't initialized headlessly, sound_play_ex might bail out early without decoding, meaning the bench never exercises that cost at all. I should measure the actual decode init overhead directly on desktop by wrapping sound_play_fx with timing probes during a 20-second fight sequence, then check how AU actually invokes it to make sure I'm instrumenting the right call site.

Performance improved significantly (frame drops cut from 33 to 7, death-screen stutter gone), though dropping six objects simultaneously still causes some slow frames. Since Chrome's muted benchmark may hide audio decoding costs, I'll add direct timing around the sound play calls to check that.

Only 33 starts in 30 seconds seems low for six active powers in a fight—maybe audio isn't fully initialized in agent instances, or sounds get muted/gated somewhere. Either way, each start costs roughly 0.7ms on desktop but 2-3ms on web, so a burst of 10 starts could add 20-30ms, which matters but isn't catastrophic.

One possible engine fix is pre-decoding short sounds to PCM at load time so playback skips the decoder init entirely, though memory cost would be too high for all sounds—maybe just viable for sub-1-second clips, and it'd require redeploying the web engine, so I'll flag it as a follow-up rather than tackle it now. Streaming decode during playback also adds continuous main-thread audio work, though it's not spiky.

Turning to the early-frame hitches after the intro (92/144ms around 0.1-0.3s, 125ms at 1.3s)—these look like first-draw GPU upload costs, and I'm wondering if extending the intro slightly while the scene renders hidden in the background could absorb that cost.

The lich specifically is culled off-screen at intro time and only uploads when he walks into frame at 1.3s, triggering that hitch. Pre-uploading him during a dry-render phase would mean temporarily repositioning the camera, which gets complicated, so I'm considering whether the renderer has a compile/pre-upload-all-geometry call instead.

Let me check renderer.lua for that upload path.

Starting a sound costs ~0.7ms (fresh decoder each time), but that's minor so I'm just noting it rather than fixing it now. The bigger hitches are first-draw GPU uploads for off-screen meshes—I'll check if the renderer can upload meshes without drawing them so the intro can do it preemptively.

I'm thinking about adding an upload function that traverses the whole scene graph, including hidden objects, and converts each mesh's geometry into GPU buffers, spreading the work across several intro frames instead of doing it all at once.

Textures aren't a concern since they're already uploaded at load time, so only mesh buffers matter here. Since gpu_mesh_of is idempotent and handles dynamic attributes and instance matrices correctly, pre-uploading shouldn't change rendering at all—just budget the uploads per frame (say by byte count) during the intro so the page stays responsive, then verify this actually addresses the stall around the 1.3s lich appearance.

I'd build the upload list each frame from world_scene, uploading pieces until the byte budget is hit, then clear G.intro once everything's done. Since gpu_mesh_of runs inside draw() the GL context is already current, but I should remember to call gpu_end() after the last gpu_* call to properly close out any VAO/buffer binding work for that frame.

Since the intro branch doesn't draw anything else, I need to call gpu_end() right after the uploads to restore state so the site's 2D pipeline can take over cleanly, which matters especially in hosted mode. The shader program compile polling happens separately and already restores its own glUseProgram state, so no extra gpu_end needed there — I'll implement this in renderer.lua and main.lua, and watch the first-frame timing in the benchmark.

Since `gpu_mesh_of` is idempotent, I can preload the world scene's meshes to the GPU during the intro, spread across a few frames behind the name card, so everything is already uploaded by the time the lich's entrance plays—with no visual difference from the normal draw path.

I realize the G.intro semantics shifted: it now represents a countdown through program states before reaching 0 for uploads, then nil when fully done, rather than just nil-means-done. I'm checking the boot.lua logic where G.intro gets set to nil once there are no programs, and confirming game_intro() returns based on whether G.intro is not nil.

I'm verifying the update() guard that returns early while G.intro is truthy still holds correctly through the uploads phase, and tracing whether R.world_scene is properly exposed through G.R so items.lua can call methods on it. I'm also checking that the points rendering path reuses the same gpu_mesh_of and Renderer:draw logic as other geometry, that traverse works on scene objects, and that attribute arrays backed by gpu buffers behave correctly with length operators and the up() handler's fallback between array and blob fields. Once these checks pass, I plan to run a quick desktop simulation and then test on the hosted webbench environment.

This run looks much worse overall — fight fps dropped to 34.7, mean frame time up to 28.85ms with lots of spikes, and even boot/module loading was slower, suggesting the machine itself was under heavier load this time rather than my change being the cause. Still, some early frames did improve despite the worst spike hitting around 1.1s.

I'm trying to trace whether my upload change could be the culprit — checking the shared-geometry holder logic for instanced vs non-instanced objects and points, but nothing obviously wrong stands out there. I should just rerun the benchmark to check variance and rule out machine load as the real factor.

This run showed much worse performance (35 fps vs 60), but even untouched boot steps slowed 40-50%, suggesting system load rather than my upload change is the cause. I'll rerun to isolate the real factor.

Looking at the rerun, fight performance holds steady at 59.5 fps with only a few frames crossing 50ms near death, confirming the earlier slowdown was from background apps rather than the game itself. Early on there's a notable 147ms spike around the 1.0s mark, likely tied to the lich's walk-in animation during the benchmark's first frame.

I'm now suspecting that spike is actually the ambient sounds pack loading — around 55 slots reloading roughly 124 files at once could easily cause a 150-250ms hitch if each file takes a couple milliseconds to decode on web. Mapping the boot timeline, the intro takes about 1.2s before the benchmark clock starts, so a sounds-pack load scheduled at 3s of boot time would land right around that 1.0s bench mark — which fits the observed spike perfectly, and suggests this same hitch would hit real users a few seconds into gameplay.

To fix it, I'm planning to throttle the sound reload logic so it only processes a handful of ready slots per update cycle instead of bursting through all of them at once, checking periodically rather than dumping everything in a single frame. For the items pack, I want to similarly spread object creation across multiple ticks — building one object per tick instead of five at once — though the PMREM texture upload for inspection is a single unavoidable chunk that'll still cost some time, just scheduled on a later tick.

Performance's much better now—59.5 fps during the fight and intro load times down from 90-145ms to 15-28ms—but there's still one 147ms hitch when the sounds and objects packs finish loading all at once. I'll fix that by spreading out the sound slot reloads and object builds across multiple ticks instead of loading everything in a single update.

I'm checking that items.update and the tick block each call make_late once per tick, totaling two spawns per tick which is fine, and confirming make_late only returns false when none remain. I also want to re-verify the queued slot flow in the desktop sim and recheck webbench.

I should run the room digest regardless, since the audio/items changes shouldn't affect LICH_ROOM's late-spawn logic on desktop. Let me run webbench now.

Performance looks much better now - early phase has no frames over 50ms except one at 48ms, and the fight itself stays under 38ms with nothing exceeding 50ms. The drop cluster at the end still shows some variance between runs though, with frame counts over 50ms ranging from 3 to 14 depending on the run, which seems to be machine noise rather than a real regression.

In actual gameplay the objects drop one at a time rather than all six simultaneously, so this worst-case bench is more conservative than real usage and good enough for now. I'll run the probe checks, digest, and anchor verification, then sync and commit, and ask about deploying since this is a data-only change (no engine changes) that still needs a fresh deploy despite the earlier approval.

Frame times are now solid through the opening and 30s fight (worst 48ms, fight max 38ms); remaining issues are the all-powers-at-once spike (50–60ms, variable on a busy machine) and the death frame at ~67ms. Next, I'll run room digests, the static check, and the simulated web site flows as final checks.

The grep for the fixes probe output came back empty, which is odd — maybe the probe errored out or the env var ordering caused an issue. I should rerun the fixes probe in isolation to see what's actually happening.

I'm also noticing the warning count went from 182 to 183 — likely a new gpu_end undefined global warning in main.lua, consistent with the other gpu_* warnings since the meta lacks that layer. I'll check this quickly.

The gpu_* warnings look like a pre-existing pattern, likely just the new gpu_end call. But I'm more concerned about the unlock probe timing — now that the intro is longer with the uploads phase, the 30-tick click probe lands during the intro instead of the scene, meaning it gets held as an intro_click and only delivered once the scene shows, which could shift when the egg actually opens.

What's actually changed is that on desktop, warm_async now resolves true since the engine exposes an async program function, so compiled programs become synchronous and program_ready returns true immediately — which means the intro loop pops all warm programs in a single frame instead of spreading across several, altering the probe's timing relative to the egg unlock check.

I think I should actually instrument this: print G.intro and G.uploads over successive steps after launch, and verify whether the click event is actually being delivered during the EGG_WAIT check.

The unlock probe is now failing with "no run" — the egg never opens after the click, likely because the longer intro (which now uploads meshes) is interfering. I'll inspect the intro's state at egg start to confirm.

Since the intro timing isn't the real issue, I'm tracing where the egg start flag actually gets set, looking into the branch that handles when the sequencer isn't on yet to see how egg_start connects to the probe click logic.

At the tick where the die happens, I'm checking whether `ep.start()` takes the synchronous path versus the coroutine path for ground preparation, since both pass different yield functions. The death_parts probe worked on desktop using the coroutine path, but the synchronous path used by EGG start hasn't actually been tested — so I suspect the bug lies there, possibly in how prep_args or related variables are ordered relative to where prepare is defined in my patch.

I confirm the function ordering in the file is fine, so now I need to actually query game_host_error after clicking to see what the real error message says.

No errors, sequence running, but the hatch timing doesn't line up with my expectations—240 steps at 120Hz is only 2 seconds, yet hatch seems to occur around 9 seconds. I should extend the probe's wait window to actually catch when the hatch really happens.

I'm noticing the tick counter stays at zero, meaning the game loop isn't advancing — likely stalled by an EGG_WAIT flag that only clears on a mouse click, which depends on the input system actually forwarding that click through the engine's injection path.

I'm digging into whether `mouse_is_pressed` at main.lua's load time actually points to the host's version or gets shadowed by the framework's own wrapper, since that would explain why the click check that's supposed to clear EGG_WAIT never fires even 30 ticks after the click arrives.

I'm also reconsidering the timeline since this same probe passed earlier in the session right after the wrapper was added—so something that changed afterward (GC auto, EXTRA programs, uploads intro, spread loads, ending top-up logic, ep.prepare) might be interfering with the click detection now.

Looking at tick order, EGG_WAIT is checked early and should block everything if true, so for SEQ.dead to be set without EGG_WAIT being false, the sequence tick must somehow run or SEQ.t must stay frozen at 0 — meaning tick isn't actually advancing SEQ.t before the death condition fires.

Maybe the game's update loop isn't running at all because the hosted element is scrolled off-screen and the host pauses ticking for invisible elements. I should just add a print statement to check the game object's state directly rather than reasoning further.

After the click, the timer ticks once then freezes — render_acc isn't advancing, meaning update stopped being called entirely, not just erroring silently. I suspect the host stopped invoking the game loop, possibly because the game's update function is returning early due to some intro-state guard condition.

I wonder if there's a pcall wrapping the update call in game_host that's swallowing an error without surfacing it in game_host_error, or whether the visibility check (needing a "seen_frame" state) is blocking updates after the click triggers some page change. I should check if there are any logs being written that capture errors from the game loop, like an agent log file in the replays directory.

The gem's stand-in object hasn't been created yet, so accessing it fails. I'm tracing through the EGG start sequence where all powers get thrown at tick 1, which forces stand-ins to become visible and thrown before the items pack has actually landed -- I need to check how make_late previously handled creating all 5 objects on the first update.

The crash happens because the throw path uses stand-ins before they're populated with real children, unlike normal play where throwing only happens via the viewer after all objects are already made. The fix is to guard the gem's uLit line so it only runs when the game object exists, is visible, and isn't still a late stand-in -- since the real object swaps in automatically once it's created, I'll apply that guard and rerun the fixes probe.

Found the bug: throwing happens before objects finish building, so the gem's mesh-less stand-in crashes the "lit by the sun" update silently—normal play avoids this via the viewer, but the local unlock loop hits it directly. I'll add a guard for it.

Good, the unlock flow passes with no update errors now, and my earlier edits to items.lua via python look fine despite the disk modification warning. Checking other paths touching group children or materials for stand-in issues—drop/throw use the stand-in Group's position fine, so that seems okay as I look toward the ending test setup.

Also checking whether power keys stay active in hosted mode versus just locally—looks fine either way. Now I should re-run the digest since items.lua changed, do an anchor check, then commit, record, update memory, and ask about deployment.

My local site is one commit ahead of prod, which isn't an issue for deploy.sh --data since it only blocks on diverged history, not ahead-only states. The REDESIGN note push can wait until end-of-session, and since the renderer code hasn't changed since the last deploy, the bundle should remain unaffected.

The site copy was already up to date, and the new boot pack is `boot-dc6bee28`; since the tree only has other sessions' edits and is just one record-only commit ahead of the server, I'll go ahead and deploy.

I notice the renderer bundle's data file hash shifted even though I didn't touch the renderer code directly, with the file size growing slightly—so I'm wondering if something in the renderer tree, maybe a .gitignore change, triggered this.

Actually, I suspect the real culprit is media-meta.json, which was modified by another session doing media fetch work and got swept into my deploy since it's content metadata rather than code. That seems benign since it's just dimension metadata, but I should check which bundled files actually changed timestamps after the previous deploy to be sure nothing else slipped in.

Deployment succeeded and all loader files checked out, but the renderer bundle hash changed (`renderer-6331c3a9cf.data`) even though I didn't touch renderer code this round. I'll dig into what caused that change before marking this done.

I see two new commits from another session: one that's just an end-session log, and another that actually changed the renderer—adding a glossary word and phone menu tweak. That means my deploy ended up shipping code from a different session that I didn't write; I'm not sure if that session intended for their change to go live.

I need to verify the actual timeline—check whether prod's HEAD matches the glossary commit, and whether the previous deploy already had that bundle live before mine. The bundle hash change in my deploy log (from the old renderer file to a new one) suggests the glossary code wasn't live until my deploy, which means I unintentionally pushed someone else's committed-but-maybe-not-ready work.

Two other commits snuck into the site repo since my last deploy, including one adding a 'glossary' word to the renderer — my deploy pulled that in too. I'll check whether that change was already live or just meant to be staged.

I realize my deploy pulled from the local working tree, which already had the glossary renderer change committed by another session but not yet pushed to prod. So the live bundle is now running code that doesn't exist in prod's git history — it got deployed as a side effect of my build, not through that session's own deploy flow.

The good news is the glossary word change is likely invisible unless the glossary page itself already exists in the live index, since the nav link only shows when that page exists. I still need to verify whether the glossary page is actually in the live data before concluding this is harmless, and then flag to the user that my deploy also shipped the other session's unpushed renderer change.

My deploy accidentally pushed an unrelated renderer change (acc2bcf9) that adds the 'glossary' word and #heading links. I'm checking whether that glossary word is actually visible to anyone yet, since the commit implies it only shows when a glossary page exists in the device's index.

Since the glossary page is missing entirely, that word stays hidden for everyone regardless, while the heading-link fix is low-risk and already live. I should verify my game packs with md5 checks and wrap up, and consider whether to notify the other session, though I'd need to find its session ID via ListAgents first.

That other session committed renderer code and might be about to deploy, so it'd be useful to let it know its change is already live in the current bundle since my deploy built from the shared tree — messaging another local Claude session like this is fine since it's not an external person. Let me list the agents to find it.

There's no glossary page anywhere, so that term remains hidden for everyone — the only live effect is that in-app links to `/posts/<slug>#heading` now jump to the heading. I'll verify my own packs on the server next, then notify the session behind acc2bcf9 that its change is live.

The diff shows the remote VPS still has an old boot-7a3534d6.pack file that's not present locally, suggesting the deploy sync doesn't prune deleted files -- the remote now has both the new boot-dc6bee28 pack plus leftover older packs.

This leftover is harmless (manifest already points to the new pack), just a small amount of stale junk, not worth cleaning up right now.

I should message the glossary session (the "General 2" session that committed the renderer change) to let them know my --data deploy built the bundle from the shared tree, so their commit acc2bcf9 is already live as renderer-5918e5dd4b.js even though it hasn't been pushed to the prod git repo yet -- I'll use SendMessage for this.

My packs are byte-identical to the server, and the leftover previous boot pack there is unreferenced and harmless. Since the glossary commit likely came from "General 2," I'll let that session know its change is live.

There's nothing more for me to do here, just a quick acknowledgment to the user.

Oh, I misdiagnosed this — it's actual audio stutter with repeated chunks, not frame-time stutter, so my fix targeting frame pacing wouldn't address it at all. This points to a Web Audio buffer underrun issue, where the audio pipeline is repeating chunks because something upstream isn't feeding data fast enough or isn't tracked correctly.

Since decoding happens inside the audio callback itself, all the Vorbis decoding for active voices plus the new FX processing — per-ear filters, delays, and the Freeverb reverb bus — runs on the main thread within that callback too, so if it's too slow it causes underruns regardless of frame timing. This explains why the issue appeared now: the new engine deploy added FX voices and Freeverb, whereas the previous engine used plain voices without that extra per-voice DSP load.

The timeline confirms it — the stutter report came right after he played the site following the engine deploy, so that deploy is the likely culprit. My mistake was testing frame times in a muted headless Chrome, which skips audio callback execution entirely and wouldn't reveal this bottleneck.

Possible fixes worth discussing rather than implementing: moving audio processing off the main thread via AudioWorklet+pthreads (though that requires cross-origin isolation headers which could break embeds), increasing the audio buffer size to trade latency for robustness, or reducing per-voice audio work on web, like disabling reverb on effect voices.

Falling back to plain voices on web when sound_play_fx is missing could restore the pre-deploy hosted behavior, and this seems like a quick hypothesis to test. Other options include pre-decoding short sounds to PCM at load time to skip Vorbis decoding in the callback, and capping concurrent voices.

To verify any of this, I'd want to properly instrument the audio callback on web—timing how long it spends per call relative to its deadline, counting underruns—though running this in headless Chrome raises the question of whether there's even a real audio sink to measure against.

Before speculating further, I should check what miniaudio web backend configuration the engine actually uses—whether it's using audio worklets or pthreads—so I should grep the build scripts to ground my discussion in facts.

I confirm that without AudioWorklet support, the web build falls back to ScriptProcessorNode, which forces the audio callback onto the main thread -- and the buffer size there follows a power-of-two default rather than the usual low-latency period setting.

If the main thread stalls while that callback is handling heavy DSP (decoding streams, FX nodes, Freeverb), the ScriptProcessorNode just replays the previous buffer, producing exactly the stutter/repeat symptom reported. The timeline lines up too: the stutter reports started right after the engine deploy that first brought FX voices and Freeverb mixing to the hosted site, meaning the callback workload jumped significantly at that exact point.

Longer sounds with reverb tails being more noticeable makes sense now. I realize my own benchmark was flawed — I measured frame hitches, not audio, and ran everything muted or on devices with no audio device at all, so the ScriptProcessor timing issue never got exercised, and my own engine changes probably made it worse by adding FX voices to the main-thread callback.

My ranked theories: it's likely a small ScriptProcessorNode buffer getting starved by heavy frames, worsened by reverb and per-voice filters plus live Vorbis decoding now running inside that callback. Fixes include bumping buffer size, moving to AudioWorklet with threading, pre-decoding short sounds to PCM, and lightening the mix on web by dropping reverb or capping active voices.

Before fixing, I want proper measurement: instrument the audio callback itself to count underruns and log timing gaps, maybe expose stats to Lua so they show on the perf overlay; then A/B test live on the hosted site by toggling FX, reverb, and buffer size while he listens; and confirm whether what he hears ("repeats portions") really matches the underrun signature rather than dropped frames.

I also want to check miniaudio's default WebAudio buffer/period size calculation to cite the actual number — searching miniaudio.h for the relevant period-size-from-descriptor function for the webaudio backend.

I'm estimating the default ScriptProcessor buffer size at 48kHz lands around 2048 frames, giving roughly 42.7ms per callback with about two buffers of latency. That means any main-thread stall beyond roughly 40-85ms, or a mix callback too slow to decode and process all active voices in time, would cause an audio glitch.

With per-voice Vorbis decoding plus Freeverb FX running in wasm on the main thread, each callback might cost 5-15ms base, but scaling with voice count — especially with layered plays multiplying active voices — could easily blow past the 42ms budget and cause underruns, matching the user's report that it happens only when certain sounds play.

I realize my earlier fix attempt only tracked frame times, not actual audio output, and my test setups (agent instances, muted webbench, desktop running audio on a separate thread) couldn't reproduce this issue at all — meaning my recent engine deploy, which added FX voices and reverb, likely introduced or worsened the problem.

I should properly instrument the audio callback itself — tracking duration, interval, underrun count, and active voices — expose this through an `audio_stats()` function visible in the site's perf overlay, then reproduce the issue using headless Chrome with unmuted audio (which still pulls real buffers) to log underruns in webbench, and run A/B tests toggling plain voices vs FX, reverb, buffer size, and voice caps. For fixes, I'm ranking options by effort versus payoff: increasing the audio buffer size trades added latency for tolerance of long frames, while moving audio processing off the main thread entirely via AudioWorklets would need pthread/wasm worker support and cross-origin isolation headers set up on the site.

I'm figuring out how to hook into the engine's audio callback so I can instrument the data being read—likely by supplying a custom ma_device with my own data callback that calls into ma_engine_read_pcm_frames, rather than relying on the engine's internal callback.

That onProcess hook only gives interval data, not duration, so I'd need to check whether anchor.c already uses it elsewhere. What I actually want to track: callback count, frames per callback, time spent inside the read call versus the expected period, and especially cases where the gap between callback starts exceeds roughly 1.5x the period — since with ScriptProcessor-style audio, a late callback means the browser already played a stale buffer, causing an audible glitch.

I'm planning an `audio_stats` function that exposes a table of callbacks, frames, period, average/max callback duration, late/very-late counts, max interval, and current/peak voice counts. For timing I'd use emscripten_get_now() on web and whatever existing perf_time helper exists on desktop — need to confirm that function's name. For benchmarking, I should check whether Chrome's --mute-audio flag needs to be removed to get realistic unmuted playback behavior.

Headless Chrome likely uses a fake audio output stream that still pulls at real-time rate even with audio muted, and the autoplay-policy flag should let the AudioContext resume without user gesture — I'll verify callbacks actually fire by checking the stats counts rather than assuming.

I should also avoid actually playing audio out loud on his speakers, so I'll keep --mute-audio while confirming callback processing still occurs under that flag, and log timestamps of any late callbacks so I can correlate them with bench frame timing.

I'll test empirically with --mute-audio first to see if stats callbacks still fire, and if not look at alternatives like --disable-audio-output which may route to a fake output stream. I also want to check if the site's existing ?perf overlay could show audio stats for his live verification.

That'll require a new engine function later, bundled with the fix deploy. I also need to look at how the engine tracks active voices via playing_sounds, and whether there's already a custom data callback I can hook into for agent-mode audio rendering.

I'm considering miniaudio's onProcess hook in ma_engine_config, but since it only fires at the end of reads it won't give me duration info, so I'm looking at setting up a custom device for the non-agent audio path instead.

I'm sketching how this would wrap ma_engine_read_pcm_frames inside my own device callback to time it, then configure the engine to use that external device rather than letting ma_engine_init create its own—though I need to weigh the risk that other code paths relying on ma_engine_start/stop or focus-change behavior might not play well with an externally managed device.

Actually this feels like more disruption than the timing measurement warrants, since it touches the audio path on both desktop and web. A lighter approach might be to measure intervals between consecutive read-ends instead—late reads would show up as intervals noticeably longer than the expected period, even without directly timing the read duration itself.

Let me check whether ma_engine_config exposes a dataCallback field directly, which would let me hook into the device callback without replacing the whole init flow—I should look at the struct definition in miniaudio.h.

I'm checking how `dataCallback` in the engine config lets you supply a custom device callback, and tracing whether `ma_engine_init` wires that into the device config versus the internal callback miniaudio uses by default.

I'm adding an audio_stats struct in anchor.c to track timing of the device's data callback, since on web the mix runs on the main thread and a late or slow callback causes the browser to replay the previous audio block—producing the stutter/repeat the user described.

Finishing the gap tracking logic, then considering threading concerns: the audio callback runs on the audio thread while Lua reads stats from the main thread, which is racy but acceptable for simple stats. I'm also verifying that SDL_GetPerformanceCounter maps to a high-res timer on emscripten, and checking how the playing-sound struct tracks active voices for counting.

I'm defining categories for "late" versus "very_late" callbacks based on gap-to-period ratios, possibly bucketing gaps into a histogram, and sketching an audio_stats Lua function that returns callback counts, timing stats, and voice counts, with an optional reset. I also want a way to correlate spikes in lateness with specific game events, so Lua could poll stats each frame and log what's happening when late counts increase.

Now I'm checking the engine init call for non-agent mode to wire in a dataCallback pointing to audio_data_callback while leaving other config defaults, confirming that passing NULL already uses default config internally, so the only change is adding the callback. Agent mode without a device just leaves stats at zero, and recording/replay paths remain unaffected. Next I want to look at the PlayingSound struct.

I'll wrap the engine's data callback to time `ma_engine_read_pcm_frames` calls directly, tracking callback duration, gaps between callbacks (to detect replayed blocks), and active voice count. Now checking the playing-sound struct to get the voice count.

The in_use count should also track finished-but-uncleaned voices, and I'll count fx voices separately. Now I'm placing the stats struct and callback right after the playing_sounds declaration, ensuring it sits before the audio init code as a top-level static function.

I need to check where audio_engine is declared to confirm the callback can reference it—likely declared earlier than the playing_sounds array, so placing the block right after that declaration should work.

Both builds are done, and the replay check is unaffected by the device path change since it runs on agent instances with noDevice — still worth running at the end for safety. For webbench, I need to confirm audio works in headless Chrome: the --mute-audio flag is set, autoplay policy shouldn't require a gesture, so AudioContext should start, but I need to verify whether miniaudio/SDL on emscripten actually resumes the context without a user interaction.

I'm planning to add per-phase audio stats logging — resetting and printing audio_stats at the start/end of measured spans, tracking when very_late counts increase over time by sampling each frame and recording into an event list. I also want to test muted vs unmuted runs, since unmuted headless Chrome might actually output sound to the real device, which could be disruptive — so I'll first confirm callbacks fire at all under mute before worrying about that.

I also want a bench switch to force plain (non-FX) voices by adding a condition in audio.lua's playback branch tied to a bench-controlled flag, plus a way to disable reverb via A.reverb_on — though I need to check whether muting reverb wetness still leaves the reverb processing node running (and thus still costing CPU) versus actually bypassing it.

Both engines build successfully. Now I'll add benchmarking to log audio stats and late callbacks, plus toggles to test suspects (plain vs spatial voices, reverb on/off) — starting by checking how reverb is applied.

I'm checking the audio code to see how plain voices skip reverb entirely, and wondering whether the Freeverb bus still consumes processing time even with no inputs or with wet=0 on FX voices—that's a key variable to isolate in the A/B comparison.

For the bench setup, I need a way to toggle plain mode: creating a bench_plain flag file that sets `A.PLAIN = true` through host_emulation, plus a build.py environment variable to add the right file. Then I'll wire up logging in the bench frame loop to capture audio stats at the start and end of the measured span, and track "very_late" event spikes over time so I can compare the two configurations directly. Now I'm going to write this patch.

I'm adding an A/B switch: `A.PLAIN` forces plain voices in-game, and `WEBBENCH_PLAIN=1` does the same for benchmarks, which I'll also extend to report audio stats for the fight and ending plus timing of every very late callback.

Zero audio callbacks ran during the bench, meaning the audio device never actually fired—possibly AudioContext stayed suspended without a user gesture, or audio init was skipped on web. That likely explains the odd "very late at 40.8" reading despite zero callback counts, which points to a bug in how very_late gets computed versus reset each frame.

I want to check whether the engine requires a click to unlock audio on web builds, similar to common emscripten/SDL patterns that resume the AudioContext only after first input. I'm going to grep the engine source for audio unlock/resume handling.

The benchmark showed zero audio callbacks, meaning the audio path never activated in the headless page and this test was never actually hearing sound. I'll dig into whether it's a muted browser, a suspended AudioContext, or an engine waiting on a click to start.

I realize audio_try_unlock requires a genuine user interaction event, which the bench never provides, so audio stays locked. I should have run.mjs dispatch a simulated mouse click via CDP right after page load to trigger unlock, and I'm also considering that --mute-audio only silences output while audio processing likely still runs underneath.

Found it: audio only starts after a user interaction, which the benchmark never triggers—that's why nothing played in today's runs. I'll simulate a real click via the debugging protocol at page load; Chrome stays muted so you won't hear it, but the audio will still be generated.

I'm considering adding a mouse click dispatch in the wait loop after the engine boots, to test whether a click at a canvas corner would trigger the game's mouse input handling, like picking a goal for pathing.

Actually, a safer approach might be dispatching a harmless keydown event instead, since I need to check whether modifier-only keys count as user activation in Chrome. Something like 'F13' seems unbound in the game's key bindings and should still reach the engine's audio unlock handler via SDL keydown mapping, so let me check where audio_try_unlock gets called from in the code.

I'm thinking of simulating a key press using CDP's dispatchKeyEvent with F13, sending keyDown and keyUp events, since SDL/emscripten typically listens for keyboard events at the window or document level rather than requiring canvas focus.

I'll add logic to run.mjs so that after navigating, it waits for window.BENCH to exist and the engine to start, then fires the key once a few seconds into the loop—maybe at iteration 3—and I'll also add a WEBBENCH_NOAUDIO env flag to skip this step when needed.

Still zero callbacks firing, meaning nothing is actually invoking the audio update even though the build includes audio_stats now. I'm wondering if audio_initialized is false on the web engine, which would explain why the callback path never triggers.

I suspect the AudioContext starts suspended in headless Chrome and the engine needs an explicit unlock/resume via user gesture before callbacks run, and separately I'm questioning whether the F13 keypress is even reaching SDL's event handler given focus/keyboard element settings. I should check whether run.mjs captures the full console output somewhere, like a scratch file, to see if "audio unlocked" or "engine initialized" messages actually appear.

The audio engine is initialized with context unlocked, but my stats show zero callbacks, meaning the data callback isn't firing — I'm checking whether the web build's ScriptProcessorNode path is correctly wired to my callback and whether the rebuilt web engine binary actually reflects recent changes.

I suspect muted Chrome might not actually be creating a real output stream for the ScriptProcessor to pull against, so I want to inspect the AudioContext's state directly via CDP to see if it's suspended rather than running, and I'm weighing alternative Chrome flags to avoid making noise while still getting real audio callbacks.

Audio initialized but the callback never fired—muted headless Chrome seems to skip pulling audio entirely. I'll switch to the `--disable-audio-output` flag instead of `--mute-audio`, since it renders audio to a fake output stream rather than silencing it outright.

Still getting zero output, so I'm questioning whether my callback is actually the one invoked on the web build—maybe miniaudio's webaudio data path bypasses the dataCallback we set in engineConfig and calls its internal engine callback instead.

I should verify this empirically rather than keep reasoning about the source: I'll inspect whether miniaudio exposes a `window.miniaudio` object in the browser with device/state info, and if so, query it via CDP after the bench page runs for a bit to see if the AudioContext is actually running and producing frames.

I'm tracing how the onaudioprocess callback runs on the main thread through the device processing chain to onData, and considering what happens if the callback runs late—different browsers handle buffer underrun differently, with Chrome typically repeating the previous output buffer rather than going silent.

I should check whether the audio context needs to be in 'running' state for these events to fire. I'll modify run.mjs to evaluate a small script checking the webaudio device state, context state, and sample rate, printing it out near the existing GL diagnostics print before the process is killed.

I found that the lack of callbacks means the browser never fired the audio processing handler. I'll update the benchmark to report the AudioContext's state at the end.

The audio context is running at 48kHz and started, but my callback counter stays at zero, which is odd since if the callback were truly firing I'd expect a nonzero count after the warm-up reset. This makes me suspect the callback I'm tracking isn't actually the one connected to the device—maybe the device was set up through a separate path before my config took effect.

I should check the engine's web initialization—there could be a distinct emscripten-specific branch that sets up audio unlocking differently. Let me search for where that unlock flag gets set.

The audio device shows 48kHz and running, but my counter stays at zero, meaning the web device likely isn't created through the code path I patched. I'll search for a separate web initialization path.

I'm wondering if the webbench page is actually using a stale build of the engine, since I need to check whether build.py ran after my engine rebuild or before it in the sequence.

Tracing through the audio callback path, I suspect the issue could be in how miniaudio's device data callback hands off frames to the engine, or possibly that the static audio_stats struct is getting reset unexpectedly between warm-up and measurement phases.

I want to verify whether the ScriptProcessorNode is actually connected through to the audio destination on emscripten, since miniaudio's connection logic there could be the real culprit behind zero callback counts.

I should test whether the AudioContext's currentTime actually advances over time — if the fake output isn't pulling audio in headless mode, the context might report "running" while never rendering, which would explain why ScriptProcessor never fires. I'll modify the report to sample currentTime twice with a one-second gap and check if it progresses.

I'll check whether the AudioContext's clock is actually advancing, since either the audio handler isn't firing or the context isn't rendering.

The audio clock confirms callbacks are firing at the expected rate, so the issue isn't timing—it's that my stats show zero, meaning my C callback itself isn't getting invoked. I'm tracing through the WebAudio backend's playback path to see where the device's data callback gets wired up and why it might not be reaching my function.

Another possibility: maybe the Lua binding name I'm using for reading audio stats is colliding with an existing global defined elsewhere in the game's framework, silently shadowing my engine function. I should grep the game code for any conflicting `audio_stats` definition.

The audio handler is firing correctly, so the counter must be reading the wrong value. I'll check if a Lua-side `audio_stats` is shadowing the engine's version.

The game Lua files inside bench.html are base64-encoded, so grep wouldn't catch the audio_stats string there anyway. I'm now checking the build order — whether bench.html's embedded wasm was built before or after I patched the engine for audio_stats, since that sequencing matters for whether the fix actually landed.

The result showing "0 callbacks of 0.0 ms" rather than a missing-function error confirms the new wasm is in place and the audio_stats function exists — it's just not getting invoked even though onaudioprocess fires. I should trace through `_ma_device_process_pcm_frames_playback__webaudio` in miniaudio.h to see what it calls for engine-managed devices.

The data path seems correct, with onData wrapped through the fixed-size callback mechanism that still should invoke the device's callback. I'm wondering if the issue is that the miniaudio device being used on web isn't actually the one created by the engine initialization.

Let me check whether the callback counter itself could be misleading, maybe the reset happening during benchmark warmup is wiping out the count before it gets read, or the wasm binary being tested isn't actually the freshly rebuilt one.

I should verify the build output directory and timestamps, confirm the string "audio_stats" exists in the data segment so Lua can find it, and re-examine the miniaudio engine init code around where the data callback gets registered to make sure the function signature matches what's expected.

The onaudioprocess callback confirms 23 fires in my CDP probe, so the C callback is definitely running. That means the Lua side must be reading a different copy of the stats struct — possibly a static struct audio_st defined elsewhere than where l_audio_stats reads from.

The safest way to verify is to just add a one-time printf inside the actual callback saying "audio callback first call" and rebuild the web engine and bench — if it never prints, the callback isn't hooked up the way I think.

Since my callback print isn't showing even though onaudioprocess fires, the device isn't using my actual callback - which means either ma_engine_init isn't picking up my config, or the bench isn't loading the wasm from this build at all. I should check whether the "first data callback" string actually exists in the built anchor.wasm file to rule out a stale build.

The wasm has "audio_stats" but my "first data callback" log string is missing, so the callback code itself may have gotten compiled out for the web build — maybe it was placed inside a conditional block that excludes it, or inserted in the wrong spot relative to the playing sound struct.

Since `ma_engine_init` is only called twice, perhaps the web path actually initializes audio differently, in a separate `#ifdef __EMSCRIPTEN__` branch I haven't checked. I should look at the surrounding lines around 30160-30200 to see the full conditional structure.

I'm checking whether other printf strings like "Audio context unlocked" actually appear in the wasm binary, since if they're missing it might mean strings are stored or compressed differently than I assumed.

I notice the Lua stats fields appear but the printf from my audio callback doesn't, which suggests the optimizer stripped audio_data_callback as dead code entirely—meaning my dataCallback assignment might not even be in the compiled web build, possibly due to a preprocessor conditional gating that code behind an Emscripten-specific check.

I'm double-checking both branches of the init function are compiled, and that the printf string isn't being deduplicated or altered. Timestamps suggest the build ran after my patch, so I should check if build-web-engine.sh is somehow caching old object files instead of recompiling anchor.c fresh.

The callback's text is missing from the wasm, though the binding's field names are present, suggesting it was either dropped as unused or built from different source. I'll check the web build script next.

The console output "Audio engine initialized" lacks the agent-mode suffix, confirming the non-agent branch executed, which means cfg.dataCallback must have been set in that path.

Now I'm puzzled why the new printf string isn't showing up at all—it should be sitting in the data segment, so I'm checking whether the build actually picked up my latest source edits or used something stale. I'm looking for another unique string tied to audio_data_callback to confirm the function made it into the binary, and considering whether the timestamps between the source file and the compiled wasm line up.

I'm wondering if something stripped or merged the format string during optimization, or if the dataCallback field actually wired up correctly on web given miniaudio's device I/O config. Since audio clearly plays, something is driving playback, so I'm trying to figure out whether it's actually calling my callback or some other internal path, and why the print never surfaces despite that.

I should check the build log for warnings tied to audio_data_callback, and look at anchor.c around line 3716 to see if my callback got wrapped inside a preprocessor block that excludes it on the emscripten target.

The timestamps seem off — anchor.c's modification time is later than the wasm build, which is strange given my edit sequence. I'm trying to figure out whether another process touched the file after my build, or if I'm misreading the order of my own patch and build steps.

I suspect the latest build may have silently failed since the script's exit code could stay 0 even when emcc errors out. That would explain why the wasm doesn't reflect my first-call printf edit, and why the callback count is still showing zero even though the stats binding looks present. Let me rebuild with visible output so I can actually see what's failing.

I realize the heredoc escaping collapsed the backslash-n into a literal newline, breaking the printf string, so I need to fix that line. But there's still a deeper puzzle: the earlier build at 13:21, which didn't even have the printf, also showed zero callbacks—so I need to check whether that wasm actually included the stats patch applied via the Write tool around that time.

Odd—the callback is confirmed firing with real audio data, but the Lua-side stats still read 0. Since both run on the main thread sharing memory, the issue might be that the stats are being reset each frame, or that the bench's audio_stats() call isn't picking up the argument correctly.

Wait, but "very late at 63.6" shows the counters did increment at some point, yet the final aud_line reports 0 callbacks — so something is resetting the stats right before that print. Maybe `audio_stats(true)` is being invoked earlier in the ending branch than I thought, wiping the counts before the summary line reads them, or there's a float/format mismatch making the printed values look like zero even though they aren't.

I'm wondering if PROF.on is being toggled by something else in the game, causing the reset to fire repeatedly every frame and keeping the stats near zero. That doesn't quite add up though, since the ending showed a "very_late" spike at 63.6, meaning audio_stats was actually accumulating counts during that phase — yet aud_line for the ending printed 0, which only makes sense if that log line was called at a different point than I assumed.

Since I can't easily call Lua directly to debug this, the simplest approach is to add a periodic debug print inside B.frame that logs the raw audio callback count every 5 seconds without resetting it, so I can actually watch the increments happen in real time.

The callback is firing correctly now, but the bench still shows 0 callbacks despite a late event at 63.6s, so the reporting logic seems off. I'll add a raw print of the counters every 5s to trace where it's breaking.

I'm trying to trace where PROF.on gets toggled off again—checking whether something in main.lua or the game code resets it each frame after bench sets it true at warmup.

Actually, I should look at where B.frame is called relative to the intro check in draw(), since that could delay when the bench logic actually engages. I suspect the real issue is timing: the F13 key may arrive before the SDL event loop or canvas is ready, and the "first data callback" print I saw might only fire much later—possibly tied to the ScriptProcessor's onaudioprocess events that I noticed firing near the end of the run, meaning the audio callback chain is starting far later than expected.

I'm wondering whether miniaudio's data callback only executes once the device state is actually "started," which would mean the unlock event (F13 at the 3-second mark) needs to be checked against when that console line actually printed relative to the bench timeline. There's also a strange discrepancy where the ending stats show audio counters updating at t=63.6 even though the audio line reported zero near the very end around t=75, suggesting the stats tracking logic itself might be inconsistent across phases.

I'm double-checking the C argument handling for audio_stats — verifying that calling it with no arguments correctly resolves to a false boolean, and confirming callback counts as floating-point values would still print cleanly as integers. That leads me to suspect the discrepancy might come from the bench calling a different audio_stats function than expected, perhaps one resolved from the web engine rather than the game's own Lua environment.

I think I need to add direct debug prints in the bench every 5 seconds to capture the raw audio_stats() values and see what's actually happening at runtime.

I'm checking whether the counters reset each frame because of how often callbacks fire between reads, and examining my audio_stats function to see if calling it with no arguments correctly defaults the boolean flag to false via lua_toboolean on an empty stack slot.

I suspect something in the engine's binding layer might be wrapping lua_register calls and shifting argument positions, so I should check if lua_register has been redefined as a macro that inserts extra parameters before dispatching to the actual C function.

Found the bug: calling `audio_stats()` with no argument is being interpreted as a reset, which wipes the counters every frame. I'll check how the engine registers bindings to see if a wrapper is passing an extra argument.

I'm checking why the profiler reset is triggering by tracing through the warmup logic in my benchmark code, looking at whether PROF.on stays true persistently once set or gets toggled somewhere else in the main update loop.

Looking at the callback counts across timestamps — 0 at t=5, 1 at t=10 — I'm wondering if the audio callback fires less often than expected given the ScriptProcessor buffer size, which would explain the mismatched timing between resets and actual data arrival.

I checked whether the poll function itself might be resetting the counter via an implicit Lua argument, but that doesn't seem to be the case — lua_toboolean on an empty call just returns false safely. So the callback counts really do seem to stay near zero even though onaudioprocess fires 23 times a second, which suggests the actual C callback is being invoked far less often, maybe due to an intermediary ring buffer between the backend and the data callback.

Another possibility is that the device isn't actually in a "started" state most of the time, so onaudioprocess is just delivering silence — though "audio context unlocked" should trigger ma_engine_start and set the device to started. I need to trace through ma_device__handle_data_callback fully to pin down what's happening.

No registration wrapper is resetting the counters—the real issue is my C callback fires only about once every 5s versus the browser's 23 calls/sec, so most handler calls never reach it. I'll look into miniaudio's data dispatch next.

I'm wondering if the stats actually increment correctly but get reset somewhere unexpected, maybe through a memset triggered by a boolean argument, or through some per-frame reset logic tied to a warmup threshold check in the benchmark loop.

Checking whether PROF.on gets toggled false somewhere each frame—looking at prof.reset() which clears t and frames but doesn't touch 'on', so the zero callbacks at t=5 before warmup likely reflect audio still being locked rather than a reset bug. I should grep for all references to PROF.on across the codebase to trace where it's being set.

Since only the bench toggles and there's no repeated reset, the callback counts should be cumulative since the WARM reset at t=8 — so seeing the count drop back to 0 at t=15 is strange, since a cumulative counter can't decrease without a reset I didn't account for.

I'm trying to pin down when resets happen: they're triggered in my `l_audio_stats` C function only when a truthy argument is passed, via a memset that zeroes everything. But something must be clearing voices_now and the callback count between t=10 and t=15 that I'm not tracking, and I'm wondering if there's a tail-call quirk causing the Lua call to unintentionally pass the reset flag. Testing this directly is hard since the desktop agent instance has no audio device, so counters stay at zero regardless — I need another way to verify the reset semantics.

I'm now suspecting the callback increment logic itself might be miscounting, so I want to add debug prints inside the C audio callback (logging every 100th call) and inside `l_audio_stats` whenever a reset occurs, then rebuild the web engine and check the bench page to see the actual callback frequency and reset timing.

I found the cumulative count unexpectedly resetting from 1 to 0 even though only the benchmark toggles the profiler, so something else is resetting it. I'll add two temporary C prints—one logging every 100 callbacks and one on each reset—to pinpoint what's happening.

I'm trying to figure out which per-frame call is passing an argument that causes top=1, since audio_stats() itself shouldn't take one unless some wrapper in the framework is injecting it.

I'm checking whether the game's own engine code calls audio_stats anywhere outside bench.lua, but nothing turns up. I think the fastest path is to just print a Lua traceback at the reset branch to see exactly who's calling it.

The traceback itself didn't show, only the message line—likely because the console log splits entries per line, so the traceback text would appear as separate entries. I should print the next few console lines right after the match to check.

Found it — in my function I push a new result table before checking the boolean argument, so when no arguments are passed, that table itself ends up occupying stack index 1, making `lua_toboolean(L, 1)` read my own table instead of the caller's argument.

The fix is to read the reset flag at the very top of the function, before pushing anything onto the stack. I'll also strip out the debug print statements to keep the console clean, then rebuild for both engine and desktop and re-run the benchmark.

Found the bug: `audio_stats` pushed its result table before reading the reset flag, so with no argument it misread the table as a truthy flag, resetting counters every frame. Fixing the read order and removing the debug prints.

I should also remove the debug print from the bench to cut noise, then rebuild the web engine and run two measurements: one with FX voices (default) and one plain (WEBBENCH_PLAIN=1), both including the ending.

Now I'm looking at actual measured data from headless Chrome testing: with 48kHz audio and 42.7ms blocks, the fight scenario shows 703 callbacks over 30 seconds at the expected 23.4/s rate, and mix cost averages 2.5ms with a 6ms max, so the mixing itself isn't the bottleneck. I'm also checking how many callbacks arrive late, with a gap threshold of 53ms.

Comparing FX voices to plain voices, both show similar late-callback counts (around 42) with zero very-late events in the fight test, suggesting FX processing isn't the culprit since mix cost stays low at 2-3ms per block — only the ending sequence shows one very-late event during a frame drop.

So in the synthetic benchmark the audio mostly holds up fine, with just that single very-late replay event during the 6-object drop, and I'm reasoning that gaps in the 53-64ms range probably don't cause audible glitches given ScriptProcessorNode's internal double-buffering tolerance of up to ~85ms. The real mystery is why he hears stutters on the live site when the bench looks clean — likely differences include the live site running its own rendering loop competing with the game's frame budget, plus his actual browser setup with extensions and the real WASAPI audio device differing from the bench's fake output.

Another big difference is that the bench doesn't include actual asset unpacking — on the live site, unpacking something like a 57MB items pack via MEMFS writes at roughly 6MB per frame could add 20-40ms of per-frame cost, which would be enough to push audio callbacks late and cause real glitches that the benchmark never reproduces.

Shared GC pressure between the site and game could also be a factor. But rethinking the actual symptom he described — stuttering and repeating portions of sound rather than clean dropouts — this feels less like a ScriptProcessor underrun and more like something inside the FX voice itself, like a delay-line artifact (stale reads when an ITD delay shifts) or sample-rate-division bitcrushing causing a sample-and-hold aliasing effect.

I should check whether the stutter reproduces on desktop too, since he's tested the sound design there extensively without seeing repeats; the real difference on web is likely that FX parameters update every frame (16.7ms) from Lua, but the audio callback block is much larger (42.7ms at 2048 frames), so several parameter updates get squeezed into one audio block on the single web thread, unlike the smoother gliding on desktop's separate audio thread.

The bench data shows the audio path is clean except for a single replay at the 6-object spike, so the live-only glitches must stem from something only present in his actual browser session. I'm thinking the best path is deploying the engine with audio_stats exposed in the site's perf overlay so he can directly correlate "very late" callback counts with the stutters he hears, getting real ground truth instead of guessing — though a heavier alternative would be replicating the live site exactly in headless Chrome with local file serving to bypass the download manager entirely.

But that download-manager interception question is tricky: if it's a browser-level network hook rather than a simple extension, even fulfillRequest tricks might not escape it, and past attempts noted blocking all requests as the only reliable workaround.

Shifting focus, I'm now considering how the site's own rendering overhead interacts with the game filling the window, and what the frame-time budget actually looks like once the perf overlay numbers come into play.

The bench showed 44 late callbacks over 30 seconds with a 64 ms worst-case gap, so if his live machine is slower and frames run 20-25 ms, those gaps would widen further—likely past the ~85 ms threshold that triggers a replay. I'm also considering how Chrome's ScriptProcessorNode schedules the delayed onaudioprocess callback on the main thread via its audio/main-thread FIFO buffering.

The deadline for filling buffer N+1 is roughly 42.7 ms after the audio thread starts consuming buffer N, so if the main thread stays busy that long—say across back-to-back animation frames without yielding—the buffer gets missed. Since rendering frames themselves eat up to 16-17 ms each near vsync, worst-case latency for the audio event handling could stretch to roughly a full frame duration or more.

If the main thread is saturated and frames run longer than the vsync interval, animation frames fire consecutively while other tasks like the audio callback compete for scheduling time; browsers try to prevent task starvation during rendering lag, so the posted task still gets serviced, just delayed. I can measure this delay as the gap between consecutive audio callbacks: with a regular ~42.7 ms cadence, a delay of d pushes the gap to 42.7 + d, so a gap exceeding roughly 85 ms signals a genuinely missed deadline, confirming my threshold for flagging "very late" callbacks.

Benchmarks show one replay event occurring at the six-object drop, and standalone game audio runs cleanly, while live site+game conditions add main-thread load and trigger more replays -- meaning measurement needs to happen live or in a realistic harness. The web mix itself only costs about 2.5-3 ms per 42.7 ms block, roughly 6-7% of the main thread, so that's not the bottleneck. For fixes, I'm weighing a larger ScriptProcessor buffer (4096 samples doubles the deadline to 85 ms but adds 43 ms latency, or 8192 pushes latency to 128 ms, which becomes audibly noticeable) against moving audio to an AudioWorklet with a ring buffer fed from the main thread -- a sufficiently large ring, filled each frame, would be robust against stalls with tunable latency, though miniaudio's AudioWorklet support has its own threading requirements to consider.

A no-threads alternative would be a custom AudioWorklet fed via postMessage chunks from the main thread instead of SharedArrayBuffer, though that adds complexity around timing each rAF-driven chunk delivery. Another path is simply reducing the main-thread stalls causing the drop in the first place. The safest first step is probably bumping the buffer size on the web side, though I need to weigh the latency cost -- roughly doubling to ~170 ms total output lag versus the current ~85 ms is a real trade-off for a game where audio needs to stay synced with visuals. Before committing to a fix, it'd help to deploy the audio stats and a perf overlay so he can actually see the very-late replay count while hearing the stutter live, confirming the diagnosis first.

Going back to his original instruction, I measured mix cost, FX overhead, and replay frequency in an isolated bench and found the engine itself is cheap and stable -- replays only showed up under heavy main-thread stalls. Since the live site layers in its own main-thread work on top of the game, the real-world replay rate is probably worse than what I measured in isolation, so shipping the instrumentation to his browser to see live ?perf numbers is the right next step, paired with the buffer-size increase as the immediate mitigation and an AudioWorklet as a longer-term option. I also want to double check the low-latency 33ms/2048 baseline against the 85ms/4096 alternative before locking in a recommendation.

Thinking about whether a headless harness could substitute for the live site, I'm running into the download-manager interference problem: Chrome's download manager seems to hook fetches at the extension level in his normal profile, which wouldn't exist in a fresh headless profile, so a harness using fulfillRequest to synthesize responses from disk might sidestep it entirely -- unless the previous pops came from file:// or localhost HTTP requests rather than the extension hook, which would change my theory.

Given how disruptive popping his download manager mid-test would be, I'm deciding to skip testing that risk directly. Instead I'll propose shipping audio_stats to the live site -- exposing a repeat count in the perf overlay so his perceived audio glitches can be matched against hard numbers -- alongside trying a larger web audio buffer size as the actual fix candidate.

Beyond that, I want to verify the desktop build still compiles and passes the replay check now that the audio callback wrapper touches both platforms, since the desktop audio thread calling into my function should be safe but needs confirming; the replay agent itself runs without a device so it's unaffected. Once that's verified I'll commit the engine changes without deploying them yet, keeping the frame-stall fix for the 6-object drop as a separate follow-up.

The benchmark confirms mixing is cheap and spatial audio isn't causing the dropouts—both spatial and plain voices behave identically, with the single block replay tied to one main-thread stall during the fight scene. I'll finish verifying the engine change (desktop build, replay test) before drafting the proposal.

I need to commit the audio_stats engine work along with the rebuilt web engine, add documentation for it in ENGINE_API_QUICK, and bundle in the game bench changes (bench.lua, the PLAIN switch in audio.lua, boot audio_switches, and webbench build/run) without pushing. Then I want to propose a fix at the discussion level backed by measured data, starting with exposing the perf overlay in his browser.

From there the plan is to confirm the stall counts on his machine, try doubling the web audio buffer to 4096 samples to extend tolerance to ~85ms (at the cost of ~43ms extra latency), continue reducing main-thread stalls, and consider AudioWorklet long-term though it has cross-origin isolation tradeoffs. Both near-term fixes require a web engine deploy, so I should get his sign-off after comparing pages, and I should flag that my bench measurements don't account for the live site's own frame work, which the overlay will reveal once deployed. Now I'll add the docs and commit everything.

The engine change checks out—desktop build succeeds and the replay test passes with all 160 frames matching and clean seeks. I'll document `audio_stats` and commit the engine and benchmark tooling; nothing's being deployed.

I'll note a quick memory update, then move toward wrapping up with the proposal and the follow-up question.

I'm figuring out how to configure the audio engine's buffer size for web builds—setting the period size so it lands on 4096 frames regardless of whether the sample rate is 48kHz or 44.1kHz, either through a millisecond-based config value or by setting the frame count directly.

Next, I'm planning to add an audio diagnostics line to the `?perf` overlay, pulling from `audio_stats()` to show replayed count, late events, worst gap, and timing metrics, guarded so it only runs if the function exists. Then I need to build and verify the web engine actually produces 4096-frame blocks, and figure out how to map the old live engine's commit hash to its corresponding desktop build for comparison testing across the eleven pages.

I'll add a third audio diagnostic line showing cumulative replayed blocks, late count, worst gap, block and mix durations, and voice count since page load, with a brief red-flash cue when the replay count increases so he can correlate it with what he hears. I'll track this with PERF.aud_last and PERF.aud_flash_t state.

Since PERF already tracks update/draw timing on the hosted game, I'll make these edits directly in health.lua.

I'm adding a third line to the bottom-right overlay showing replayed blocks, late callbacks, worst gap, block length, and worst mix time/voices, with a red flash each time a replay happens so it's visible in sync with the audio.

With 4096 blocks at 85.3ms, the fight phase shows no late or very late frames, with the worst gap at 104ms staying under the 107ms threshold. The ending has one replay at 40.9 that coincides with a 123ms frame from the 6-object drop, with machine load varying this run — the worst gap there hits 180ms.

This is likely because ScriptProcessor callbacks get delayed when the main thread is blocked for two consecutive frames. Overall, it's an improvement since the fight shows zero late frames. For the page comparison, I'm checking that both the old pinned engine build and the new current build use the same renderer code so the comparison is fair, and confirming the perf overlay isn't shown since no perf param is set. Now I need to run build_pin.py to map the pinned commit hash to its anchor commit.

Desktop and replay checks pass—the 30s fight has no late callbacks or replayed blocks, though one replay still occurs during the ending when all six objects drop simultaneously. Next, I'll build the live engine's desktop twin and compare the same 11 pages across both engines.

All 11 runs match, each confirmed on its respective engine. Now I want to quickly verify the perf overlay renders without errors on desktop with the debug flag enabled, stepping a few frames and capturing a crop of the bottom-right corner.

All 11 pages render pixel-identical across runs, and each confirmed the correct engine (old lacks `audio_stats`, new has it). Next I'll verify the `?perf` overlay's audio line renders without errors on the site's desktop build.

The overlay renders correctly with zeros for desktop agents lacking a device. Before committing the engine and site changes, I want to check the site's git status to confirm only expected uncommitted files (others' media-meta.json, tools, and my health.lua) are present, and verify whether any new commits landed since General 2's already-live acc2bcf9.

I notice the site HEAD is unpushed commit acc2bcf9, which General 2's plan ties to pushing together with the glossary page later. If I push health.lua now, acc2bcf9 would go along with it, conflicting with that stated plan — even though the commit itself seems harmless.

Thinking through it more: the deploy script doesn't actually require pushing to prod since it builds from the working tree, and since my health.lua change is renderer code, committing it locally should satisfy the deploy guard. So I'll commit health.lua locally and skip pushing to prod, leaving that for General 2 or the end-of-session flow — it's not something I need to force now. I'll add a brief REDESIGN note on this and move to deploying the engine and site.

I'll commit the overlay locally and deploy without pushing, since the deploy builds from committed code and pushing would prematurely carry General 2's pending changes. Writing the REDESIGN entry now.

The live wasm file's checksum matches the expected build commit, confirming it's correctly deployed. Now I need to verify the engine-boot.js references, check that the health endpoint returns 200, and confirm the wasm file size is correct.

I confirm the engine and renderer hashes match live, with health and home pages returning 200. I should log this verification in memory and the RECORD entry, then provide test instructions for the admin to check the perf page and listen for the audio cue on the third line.