Anchor Phase 10 Part 3

1→global *
     2→
     3→class object
     4→  --[[
     5→    Creates a new object with optional name.
     6→
     7→    Usage:
     8→      obj = object!           -- anonymous object
     9→      obj = object 'player'   -- named object
    10→
    11→    Properties initialized:
    12→      @name     - string or nil, used for bidirectional links
    13→      @parent   - reference to parent object, nil if root
    14→      @children - array of child objects
    15→      @dead     - boolean, true when killed (removed at end of frame)
    16→      @tags     - set of tags, used for querying with all(tag) and is()
    17→  ]]
    18→  new: (name) =>
    19→    @name = name
    20→    @parent = nil
    21→    @children = {}
    22→    @dead = false
    23→    @tags = {}
    24→
    25→  --[[
    26→    Adds a child to this object's tree.
    27→
    28→    Usage:
    29→      @\add child
    30→      @\add(object 'timer')\add(object 'collider')  -- chainable
... [344 more lines]

User has answered your questions: "When should link callbacks trigger - immediately during kill(), or deferred to cleanup?"="Immediate", "What arguments should the callback receive?"="I need to think about this more.", "When no callback is provided, what should happen when the target dies?"="Kill self". You can now continue with the user's answers in mind.

User has answered your questions: "Given those examples, which callback signature do you prefer?"="target in this can is the power_up?". You can now continue with the user's answers in mind.

User has answered your questions: "With that clarification, which callback signature?"="Does link create named references like add?". You can now continue with the user's answers in mind.

User has answered your questions: "Should link create named references like add does?"="No (Recommended)". You can now continue with the user's answers in mind.

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

The file E:\a327ex\Anchor\game\object.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   134→    for t in *{...}
   135→      @tags[t] = true
   136→    @
   137→
   138→  --[[
   139→    Checks if object matches a name or has a tag.
   140→
   141→    Usage:
   142→      if @\is 'player'    -- checks name OR tag
   143→      if @\is 'enemy'     -- true if @name == 'enemy' OR @tags['enemy']
   144→
   145→    Returns: truthy if match, nil/false otherwise
   146→  ]]
   147→  is: (name_or_tag) =>
   148→    @name == name_or_tag or @tags[name_or_tag]
   149→
   150→  --[[
   151→    Creates a horizontal link to another object for death notification.
   152→
   153→    Usage:
   154→      @\link target                      -- kill self when target dies
   155→      @\link target, => @homing = false  -- run callback when target dies
   156→
   157→    Behavior:
   158→      - When target dies (kill! is called), callback runs with self as argument
   159→      - If no callback provided, self is killed when target dies
   160→      - Links are bidirectional internally: @links stores outgoing, target.linked_from stores incoming
   161→      - Both are cleaned up when either object is removed from tree
   162→
... [15 more lines]

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The file E:\a327ex\Anchor\game\object.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   103→      - Dead objects are removed from tree at end of frame by cleanup()
   104→
   105→    Returns: @ (for chaining)
   106→  ]]
   107→  kill: (tag) =>
   108→    if tag
   109→      if @tags[tag]
   110→        @\kill!
   111→      else
   112→        for obj in *@\all tag
   113→          obj\kill!
   114→    else
   115→      @dead = true
   116→      if @linked_from
   117→        for link in *@linked_from
   118→          continue if link.source.dead
   119→          if link.callback
   120→            link.callback link.source
   121→          else
   122→            link.source\kill!
   123→      for obj in *@\all!
   124→        obj.dead = true
   125→    @
   126→
   127→  --[[
   128→    Adds one or more tags to this object.
   129→

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370→          table.remove obj.early_action_names, idx
   371→        obj.early_actions_to_remove = nil
   372→      if obj.actions_to_remove
   373→        for i = #obj.actions_to_remove, 1, -1
   374→          idx = obj.actions_to_remove[i]
   375→          name = obj.action_names[idx]
   376→          obj[name] = nil if name
   377→          table.remove obj.actions, idx
   378→          table.remove obj.action_names, idx
   379→        obj.actions_to_remove = nil
   380→      if obj.late_actions_to_remove
   381→        for i = #obj.late_actions_to_remove, 1, -1
   382→          idx = obj.late_actions_to_remove[i]
   383→          name = obj.late_action_names[idx]
   384→          obj[name] = nil if name
   385→          table.remove obj.late_actions, idx
   386→          table.remove obj.late_action_names, idx
   387→        obj.late_actions_to_remove = nil
   388→
   389→    -- Remove dead children
   390→    for i = #objects, 1, -1
   391→      parent = objects[i]
   392→      j = 1
   393→      while j <= #parent.children
   394→        child = parent.children[j]
   395→        if child.dead
   396→          child\destroy! if child.destroy
   397→          parent[child.name] = nil if child.name
   398→          child[parent.name] = nil if parent.name
   399→          child.parent = nil
... [4 more lines]

The file E:\a327ex\Anchor\game\object.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   385→          table.remove obj.late_actions, idx
   386→          table.remove obj.late_action_names, idx
   387→        obj.late_actions_to_remove = nil
   388→
   389→    -- Remove dead children
   390→    for i = #objects, 1, -1
   391→      parent = objects[i]
   392→      j = 1
   393→      while j <= #parent.children
   394→        child = parent.children[j]
   395→        if child.dead
   396→          -- Clean up child's outgoing links (remove from targets' linked_from)
   397→          if child.links
   398→            for link in *child.links
   399→              if link.target.linked_from
   400→                for k = #link.target.linked_from, 1, -1
   401→                  if link.target.linked_from[k].source == child
   402→                    table.remove link.target.linked_from, k
   403→          -- Clean up child's incoming links (remove from sources' links)
   404→          if child.linked_from
   405→            for entry in *child.linked_from
   406→              if entry.source.links
   407→                for k = #entry.source.links, 1, -1
   408→                  if entry.source.links[k].target == child
   409→                    table.remove entry.source.links, k
   410→          child\destroy! if child.destroy
   411→          parent[child.name] = nil if child.name
   412→          child[parent.name] = nil if parent.name
   413→          child.parent = nil
... [4 more lines]

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Rewritten built game/object.lua

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1→global *
     2→
     3→require 'game.init'
     4→
     5→frame = 0
     6→test_num = 0
     7→
     8→log = (msg) ->
     9→  print "  #{msg}"
    10→
    11→test = (name, fn) ->
    12→  test_num += 1
    13→  print "\n=== Test #{test_num}: #{name} ==="
    14→  fn!
    15→
    16→names = (list) ->
    17→  table.concat [obj.name for obj in *list], ', '
    18→
    19→-- Test 1: Complex tree structure
    20→test_complex_tree = ->
    21→  test "Complex tree (4 levels deep)", ->
    22→    an\add object 'a'
    23→    an.a\add object 'b'
    24→    an.a.b\add object 'c'
    25→    an.a.b.c\add object 'd'
    26→    an.a\add object 'e'
    27→    an\add object 'f'
    28→    an.f\add object 'g'
    29→    an.f\add object 'h'
    30→    an.f.h\add object 'i'
... [201 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   182→  test "After one-shot early/late", ->
   183→    log "One-shots should have run once and been removed"
   184→    log "early_count=#{an.p.early_count}, late_count=#{an.p.late_count}"
   185→
   186→-- Test 22: Link with callback (survives)
   187→test_link_callback = ->
   188→  test "Link with callback (object survives)", ->
   189→    an\add object 'shooter'
   190→    an\add object 'bullet'
   191→    an.bullet.homing = true
   192→    an.bullet\link an.shooter, =>
   193→      @homing = false
   194→      log "Callback ran, homing=#{@homing}"
   195→    log "bullet linked to shooter"
   196→    an.shooter\kill!
   197→    log "shooter killed, bullet.dead=#{an.bullet.dead}, bullet.homing=#{an.bullet.homing}"
   198→
   199→-- Test 23: After link callback
   200→test_after_link_callback = ->
   201→  test "After link callback (bullet still alive)", ->
   202→    log "bullet exists: #{an.bullet != nil}"
   203→    log "bullet.dead: #{an.bullet.dead}"
   204→    log "shooter removed: #{an.shooter == nil}"
   205→
   206→-- Test 24: Link with callback that kills self
   207→test_link_callback_kills = ->
   208→  test "Link with callback that kills self", ->
   209→    an\add object 'owner'
   210→    an\add object 'pet'
... [77 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   312→    test_named_early_late!
   313→  elseif frame == 13
   314→    test_order!
   315→    test_named_early_late_run!
   316→  elseif frame == 14
   317→    test_oneshot_early_late!
   318→  elseif frame == 15
   319→    test_after_oneshot_early_late!
   320→  elseif frame == 16
   321→    test_link_callback!
   322→  elseif frame == 17
   323→    test_after_link_callback!
   324→    test_link_callback_kills!
   325→  elseif frame == 18
   326→    test_after_callback_kill!
   327→    test_link_default!
   328→  elseif frame == 19
   329→    test_after_default_kill!
   330→    test_circular_links!
   331→  elseif frame == 20
   332→    test_after_circular!
   333→    test_link_cleanup!
   334→  elseif frame == 21
   335→    test_after_linker_cleanup!
   336→  elseif frame == 22
   337→    test_final!
   338→

Rewritten built main.lua

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Anchor Engine starting...
Game folder: .
Loading: main.lua
OpenGL 3.3 loaded
Renderer: NVIDIA GeForce RTX 2060/PCIe/SSE2
Shader program created
Game VAO/VBO created (stride=64 bytes)
Screen shader created
Screen VAO/VBO created
Audio engine initialized
Initialization complete. Press ESC to exit, F11 for fullscreen.
Display refresh rate: 60Hz

=== Test 1: Complex tree (4 levels deep) ===
  All: a, b, c, d, e, f, g, h, i, j, k
  Expected: a, b, c, d, e, f, g, h, i, j, k
  Count: 11

=== Test 2: Bidirectional named links ===
  an.a exists: true
  an.a.an == an: true
  an.f.h.f == an.f: true
  an.a.b.c.d.c == an.a.b.c: true

=== Test 3: Tags and is() method ===
  Enemies: a, b, h
  Flying: a
  Bosses: h
  a\is 'enemy': true
  a\is 'a': true
... [522 more lines]

1→# Phase 10 Progress
     2→
     3→This document captures the current state of Phase 10 implementation and decisions made.
     4→
     5→---
     6→
     7→## Project Structure
     8→
     9→We moved away from submodules and symlinks to a simpler copy-based approach.
    10→
    11→### Anchor Repository
    12→
    13→```
    14→Anchor/
    15→├── engine/
    16→│   ├── src/anchor.c
    17→│   ├── build/
    18→│   │   └── anchor.exe
    19→│   └── build.bat
    20→├── game/                   # Master framework (YueScript source)
    21→│   ├── init.yue
    22→│   ├── init.lua
    23→│   ├── object.yue
    24→│   └── object.lua
    25→├── main.yue                # Test file (runs from Anchor/ root)
    26→├── main.lua
    27→├── yue.exe                 # YueScript compiler
    28→├── assets/                 # Test assets
    29→├── docs/
    30→├── reference/
... [293 more lines]

The file E:\a327ex\Anchor\docs\PHASE_10_PROGRESS.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   129→- `add(child)` — Adds child with bidirectional named links, kills existing child with same name
   130→- `all(tag)` — Returns ALL descendants (including dead) via iterative DFS, optional tag filter
   131→- `kill(tag)` — Marks self and descendants as dead; with tag, kills matching objects and their subtrees
   132→
   133→**Tagging:**
   134→- `tag(...)` — Adds one or more tags (set semantics: `@tags[t] = true`)
   135→- `is(name_or_tag)` — Returns truthy if name matches OR tag exists
   136→
   137→**Horizontal Links:**
   138→- `link(target, callback)` — When target dies, callback runs (or self dies if no callback)
   139→
   140→**Actions:**
   141→- `early_action(name_or_fn, fn)` — Adds action for early phase
   142→- `action(name_or_fn, fn)` — Adds action for main phase
   143→- `late_action(name_or_fn, fn)` — Adds action for late phase
   144→

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   238→    test_tags!
   239→  -- etc.
   240→```
   241→
   242→### Test Coverage (32 tests)
   243→
   244→1. Complex tree (4 levels deep)
   245→2. Bidirectional named links
   246→3. Tags and is() method
   247→4. Kill middle of tree (branch)
   248→5. After cleanup (branch removed)
   249→6. Named child replacement
   250→7. Kill by tag
   251→8. After tag kill cleanup
   252→9. One-shot action (returns true)
   253→10. After one-shot (removed)
   254→11. Named action
   255→12. Named action runs each frame
   256→13. Replace named action
   257→14. Replaced action runs
   258→15. Early and late actions
   259→16. Named early/late actions
   260→17. Action execution order (early, main, late)
   261→18. Named early/late run each frame
   262→19. One-shot early/late actions
   263→20. After one-shot early/late
   264→21. Link with callback (object survives)
   265→22. After link callback (bullet still alive)
   266→23. Link with callback that kills self
... [13 more lines]

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   316→| Named child replacement | Done |
   317→| `all(tag)` iterative DFS collection | Done |
   318→| `kill(tag)` with propagation to descendants | Done |
   319→| `tag(...)` and `is(name_or_tag)` | Done |
   320→| Action system (early/main/late, named/anonymous) | Done |
   321→| Three-phase update loop | Done |
   322→| End-of-frame cleanup | Done |
   323→| Horizontal links (`link(target, callback)`) | Done |
   324→| Documentation comments in object.yue | Done |
   325→| Test suite (32 tests) | Done |
   326→
   327→---
   328→
   329→## What's Next

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   325→| Test suite (32 tests) | Done |
   326→
   327→---
   328→
   329→## What's Next
   330→
   331→| Feature | Status |
   332→|---------|--------|
   333→| Operators (`^`, `/`, `+`, `>>`) | Not started |
   334→| Operator inheritance (`__inherited`) | Not started |
   335→| Phase helpers (`U`, `L`, `X`, `E`) | Not started |
   336→| Built-in objects (Timer, Spring, Collider) | Not started |
   337→

The file E:\a327ex\Anchor\docs\PHASE_10_PROGRESS.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   206→3. Actual removal from tree happens at end-of-frame in `cleanup()`
   207→4. `all()` returns ALL descendants including dead ones (dead check is caller's responsibility)
   208→5. Update loop skips dead objects via `return if @dead` in internal methods
   209→
   210→---
   211→
   212→## Horizontal Links
   213→
   214→Horizontal links create death notification relationships between objects (typically siblings or unrelated objects).
   215→
   216→### API
   217→
   218→```yuescript
   219→@\link target                -- kill self when target dies (default)
   220→@\link target, => @\kill!    -- same as above, explicit
   221→@\link target, => @homing = false  -- callback runs, object survives
   222→```
   223→
   224→### Behavior
   225→
   226→1. When target dies (`target\kill!`), callbacks run **immediately** (before `target.dead = true` propagates)
   227→2. If no callback provided, linker is killed (default behavior)
   228→3. Callback receives `self` as argument — target is not passed (use closures if needed)
   229→4. Links don't create named references — store references yourself if needed
   230→
   231→### Storage
   232→
   233→Links are stored bidirectionally for efficient lookup and cleanup:
   234→- `@links` — Array of outgoing links `{target, callback}`
... [24 more lines]

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   250→---
   251→
   252→## Cleanup
   253→
   254→The `cleanup` method handles three tasks:
   255→
   256→1. **Remove marked actions** — For each object, remove actions that returned `true`
   257→2. **Clean up links** — Remove dead objects from link arrays (both directions)
   258→3. **Remove dead children** — Iterate in reverse (children-first) for proper destroy order
   259→
   260→When removing dead children:
   261→- Calls `child\destroy!` if child has a destroy method
   262→- Clears `parent[child.name]` reference
   263→- Clears `child[parent.name]` reference
   264→- Clears `child.parent` reference

The file E:\a327ex\Anchor\docs\PHASE_10_PROGRESS.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   340→7. **Iterative DFS** — Easier to reason about than recursive
   341→8. **Tags only in all(tag)** — Names accessed directly, not via query
   342→9. **Actions as plain functions** — Not objects, just stored in parallel arrays
   343→10. **`false` for anonymous action names** — Preserves array iteration
   344→11. **`all()` returns dead objects** — Dead check is caller's responsibility
   345→12. **Children-first destroy order** — Iterate objects in reverse for cleanup
   346→13. **Link callbacks run immediately** — During `kill()`, not deferred to cleanup
   347→14. **Default link behavior is kill** — No callback means linker dies when target dies
   348→15. **Link callback receives only self** — Target not passed; use closures if needed
   349→16. **Links don't create named refs** — Unlike `add()`, links are just death notifications
   350→
   351→---
   352→
   353→## What's Implemented

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165→      - When target dies (kill! is called), callback runs with self as argument
   166→      - If no callback provided, self is killed when target dies
   167→      - Links are bidirectional internally: @links stores outgoing, target.linked_from stores incoming
   168→      - Both are cleaned up when either object is removed from tree
   169→
   170→    Returns: @ (for chaining)
   171→  ]]
   172→  link: (target, callback) =>
   173→    @links = {} unless @links
   174→    @links[] = {target: target, callback: callback}
   175→    target.linked_from = {} unless target.linked_from
   176→    target.linked_from[] = {source: @, callback: callback}
   177→    @
   178→
   179→  --[[
   180→    Adds an action to run during the early phase (before main update).
   181→
   182→    Usage:
   183→      @\early_action -> print 'runs every frame'           -- anonymous
   184→      @\early_action 'input', -> @\handle_input!           -- named
   185→      @\early_action -> true                               -- one-shot (returns true to remove)
   186→
   187→    Behavior:
   188→      - Anonymous: function stored in @early_actions array
   189→      - Named: function also accessible as @[name], replaces existing action with same name
   190→      - Actions receive (self, dt) as arguments
   191→      - If action returns true, it's removed at end of frame
   192→
   193→    Early phase runs before main phase, useful for input handling.
   194→
... [10 more lines]

The file E:\a327ex\Anchor\game\object.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   168→      - Both are cleaned up when either object is removed from tree
   169→
   170→    Returns: @ (for chaining)
   171→  ]]
   172→  link: (target, callback) =>
   173→    @links = {} unless @links
   174→    @links[] = {target: target, callback: callback}
   175→    target.linked_from = {} unless target.linked_from
   176→    target.linked_from[] = {source: @, callback: callback}
   177→    @
   178→
   179→  --[[
   180→    Operator ^ (set/build): assigns properties or runs a build function.
   181→
   182→    Usage:
   183→      player ^ {x: 100, y: 200}   -- assign properties
   184→      player ^ => @hp = 100       -- run build function
   185→      player ^ {x: 0} ^ => @y = 10  -- chain both
   186→
   187→    Behavior:
   188→      - If other is a function: calls it with @ as argument
   189→      - If other is a table: assigns all key-value pairs to @
   190→
   191→    Returns: @ (for chaining)
   192→  ]]
   193→  __pow: (other) =>
   194→    if type(other) == 'function'
   195→      other @
   196→    elseif type(other) == 'table'
... [10 more lines]

Rewritten built game/object.lua

270→-- Test 31: After linker cleanup
   271→test_after_linker_cleanup = ->
   272→  test "After linker cleanup (linked_from cleaned)", ->
   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: Final
   278→test_final = ->
   279→  test "Final state", ->
   280→    log "All: #{names an\all!}"
   281→    print "\n=== All tests complete ==="
   282→
   283→an\action ->
   284→  frame += 1
   285→  if frame == 1
   286→    test_complex_tree!
   287→  elseif frame == 2
   288→    test_bidirectional!
   289→    test_tags!
   290→  elseif frame == 3
   291→    test_kill_middle!
   292→  elseif frame == 4
   293→    test_after_middle_cleanup!
   294→    test_replacement!
   295→  elseif frame == 5
   296→    test_kill_by_tag!
   297→  elseif frame == 6
   298→    test_after_tag_kill!
   299→    test_oneshot_action!
... [39 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: ^ operator (set properties)
   278→test_pow_set = ->
   279→  test "^ operator (set properties)", ->
   280→    an\add object 'pow_test'
   281→    an.pow_test ^ {x: 100, y: 200, hp: 50}
   282→    log "x=#{an.pow_test.x}, y=#{an.pow_test.y}, hp=#{an.pow_test.hp}"
   283→
   284→-- Test 33: ^ operator (build function)
   285→test_pow_build = ->
   286→  test "^ operator (build function)", ->
   287→    an.pow_test ^ =>
   288→      @speed = @x + @y
   289→      @name_copy = @name
   290→    log "speed=#{an.pow_test.speed}, name_copy=#{an.pow_test.name_copy}"
   291→
   292→-- Test 34: ^ operator (chaining)
   293→test_pow_chain = ->
   294→  test "^ operator (chaining)", ->
   295→    an\add object 'pow_chain'
   296→    an.pow_chain ^ {a: 1} ^ {b: 2} ^ =>
   297→      @c = @a + @b
   298→    log "a=#{an.pow_chain.a}, b=#{an.pow_chain.b}, c=#{an.pow_chain.c}"
   299→    an.pow_test\kill!
   300→    an.pow_chain\kill!
   301→
... [11 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   355→    test_circular_links!
   356→  elseif frame == 20
   357→    test_after_circular!
   358→    test_link_cleanup!
   359→  elseif frame == 21
   360→    test_after_linker_cleanup!
   361→  elseif frame == 22
   362→    test_pow_set!
   363→    test_pow_build!
   364→  elseif frame == 23
   365→    test_pow_chain!
   366→  elseif frame == 24
   367→    test_final!
   368→

Exit code 1
Failed to compile: main.yue
281: unexpected expression
    an.pow_test ^ {x: 100, y: 200, hp: 50}
    ^

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: ^ operator (set properties)
   278→test_pow_set = ->
   279→  test "^ operator (set properties)", ->
   280→    an\add object 'pow_test'
   281→    obj = an.pow_test
   282→    obj ^ {x: 100, y: 200, hp: 50}
   283→    log "x=#{obj.x}, y=#{obj.y}, hp=#{obj.hp}"
   284→
   285→-- Test 33: ^ operator (build function)
   286→test_pow_build = ->
   287→  test "^ operator (build function)", ->
   288→    obj = an.pow_test
   289→    obj ^ =>
   290→      @speed = @x + @y
   291→      @name_copy = @name
   292→    log "speed=#{obj.speed}, name_copy=#{obj.name_copy}"
   293→
   294→-- Test 34: ^ operator (chaining)
   295→test_pow_chain = ->
   296→  test "^ operator (chaining)", ->
   297→    an\add object 'pow_chain'
   298→    obj = an.pow_chain
   299→    obj ^ {a: 1} ^ {b: 2} ^ =>
   300→      @c = @a + @b
   301→    log "a=#{obj.a}, b=#{obj.b}, c=#{obj.c}"
... [6 more lines]

Exit code 1
Failed to compile: main.yue
282: unexpected expression
    obj ^ {x: 100, y: 200, hp: 50}
    ^

# Metamethod Definition in YueScript Classes

Based on the documentation provided, YueScript doesn't explicitly show syntax for defining metamethods like `__pow`, `__add`, `__div`, or `__shr` directly within class declarations.

However, the documentation demonstrates the metatable manipulation approach using the `<>` operator. Here's what's shown:

```yuescript
class MyClass
  new: =>
    @value = 5
  
  <add>: (right) =>
    value: @value + right.value
```

The `<>` operator syntax allows you to create tables with metamethods by surrounding the metamethod name in angle brackets. For operator overloading, you would use this pattern: `<metamethod_name>: function_definition`.

**Important caveat**: The provided documentation focuses on the `<>` metatable syntax but doesn't contain explicit examples showing `__pow`, `__add`, `__div`, or `__shr` definitions within class bodies. The metatable approach appears to be the intended mechanism, but comprehensive class-based operator overloading examples aren't detailed in this reference material.

For complete information on all supported metamethods and their syntax, consulting the full YueScript repository or additional documentation would be necessary.

The file E:\a327ex\Anchor\game\object.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   175→    target.linked_from = {} unless target.linked_from
   176→    target.linked_from[] = {source: @, callback: callback}
   177→    @
   178→
   179→  --[[
   180→    Operator ^ (set/build): assigns properties or runs a build function.
   181→
   182→    Usage:
   183→      player ^ {x: 100, y: 200}   -- assign properties
   184→      player ^ => @hp = 100       -- run build function
   185→      player ^ {x: 0} ^ => @y = 10  -- chain both
   186→
   187→    Behavior:
   188→      - If other is a function: calls it with @ as argument
   189→      - If other is a table: assigns all key-value pairs to @
   190→
   191→    Returns: @ (for chaining)
   192→  ]]
   193→  <pow>: (other) =>
   194→    if type(other) == 'function'
   195→      other @
   196→    elseif type(other) == 'table'
   197→      for key, value in pairs other
   198→        @[key] = value
   199→    @
   200→
   201→  --[[
   202→    Adds an action to run during the early phase (before main update).
   203→

The user doesn't want to proceed with this tool use. The tool use was rejected (eg. if it was a file edit, the new_string was NOT written to the file). To tell you how to proceed, the user said:
revert the test back to its original state

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: ^ operator (set properties)
   278→test_pow_set = ->
   279→  test "^ operator (set properties)", ->
   280→    an\add object 'pow_test'
   281→    an.pow_test ^ {x: 100, y: 200, hp: 50}
   282→    log "x=#{an.pow_test.x}, y=#{an.pow_test.y}, hp=#{an.pow_test.hp}"
   283→
   284→-- Test 33: ^ operator (build function)
   285→test_pow_build = ->
   286→  test "^ operator (build function)", ->
   287→    an.pow_test ^ =>
   288→      @speed = @x + @y
   289→      @name_copy = @name
   290→    log "speed=#{an.pow_test.speed}, name_copy=#{an.pow_test.name_copy}"
   291→
   292→-- Test 34: ^ operator (chaining)
   293→test_pow_chain = ->
   294→  test "^ operator (chaining)", ->
   295→    an\add object 'pow_chain'
   296→    an.pow_chain ^ {a: 1} ^ {b: 2} ^ =>
   297→      @c = @a + @b
   298→    log "a=#{an.pow_chain.a}, b=#{an.pow_chain.b}, c=#{an.pow_chain.c}"
   299→    an.pow_test\kill!
   300→    an.pow_chain\kill!
   301→
... [3 more lines]

Exit code 1
Rewritten built game/object.lua
Failed to compile: main.yue
281: unexpected expression
    an.pow_test ^ {x: 100, y: 200, hp: 50}
    ^

# YueScript Operator and Expression Statement Information

Based on the YueScript documentation provided, here's what I found regarding your questions:

## Operator Expressions and Statements

The documentation extensively covers operators but **does not explicitly address whether operators like `^` can function as standalone statements**. The language treats operators as part of expressions rather than independent statements.

## Expression Context Requirements

YueScript distinguishes between expressions and statements. Key findings:

- **Expressions require context**: The documentation shows operators used within assignments, function calls, and control structures, but no examples show bare operator expressions as statements.

- **Statement types covered**: The language supports assignments, function calls, control flow (if/while/for), and declarations—but standalone operator expressions aren't documented.

## Practical Implications

"All of Lua's binary and unary operators are available," yet the examples consistently embed operators within larger statement structures rather than using them independently.

## Key Limitation

The documentation provides no special syntax requirements or workarounds for using operators as standalone expressions. This suggests **operators must be part of a valid statement context** (assignment, function argument, control structure condition, etc.) rather than appearing alone.

**Note**: For definitive behavior on edge cases like standalone operator expressions, you'd need to test against the actual YueScript compiler or examine its parser implementation.

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: ^ operator (chained from creation)
   278→test_pow_set = ->
   279→  test "^ operator (chained from creation)", ->
   280→    an\add object('pow_test') ^ {x: 100, y: 200, hp: 50}
   281→    log "x=#{an.pow_test.x}, y=#{an.pow_test.y}, hp=#{an.pow_test.hp}"
   282→
   283→-- Test 33: ^ operator (build function chained)
   284→test_pow_build = ->
   285→  test "^ operator (build function chained)", ->
   286→    an\add object('pow_build') ^ {x: 10, y: 20} ^ =>
   287→      @speed = @x + @y
   288→    log "speed=#{an.pow_build.speed}"
   289→
   290→-- Test 34: ^ operator (multiple chains)
   291→test_pow_chain = ->
   292→  test "^ operator (multiple chains)", ->
   293→    an\add object('pow_chain') ^ {a: 1} ^ {b: 2} ^ =>
   294→      @c = @a + @b
   295→    log "a=#{an.pow_chain.a}, b=#{an.pow_chain.b}, c=#{an.pow_chain.c}"
   296→    an.pow_test\kill!
   297→    an.pow_build\kill!
   298→    an.pow_chain\kill!
   299→
   300→-- Test 35: Final
   301→test_final = ->
... [1 more lines]

Rewritten built main.lua

Anchor Engine starting...
Game folder: .
Loading: main.lua
OpenGL 3.3 loaded
Renderer: NVIDIA GeForce RTX 2060/PCIe/SSE2
Shader program created
Game VAO/VBO created (stride=64 bytes)
Screen shader created
Screen VAO/VBO created
Audio engine initialized
Initialization complete. Press ESC to exit, F11 for fullscreen.
Display refresh rate: 60Hz

=== Test 1: Complex tree (4 levels deep) ===
  All: a, b, c, d, e, f, g, h, i, j, k
  Expected: a, b, c, d, e, f, g, h, i, j, k
  Count: 11

=== Test 2: Bidirectional named links ===
  an.a exists: true
  an.a.an == an: true
  an.f.h.f == an.f: true
  an.a.b.c.d.c == an.a.b.c: true

=== Test 3: Tags and is() method ===
  Enemies: a, b, h
  Flying: a
  Bosses: h
  a\is 'enemy': true
  a\is 'a': true
... [132 more lines]

280→an:add(object('pow_test') ^ { x = 100, y = 200, hp = 50 })return 
   281→log("x=" .. tostring(an.pow_test.x) .. ", y=" .. tostring(an.pow_test.y) .. ", hp=" .. tostring(an.pow_test.hp))end)end
   282→
   283→
   284→test_pow_build = function()return 
   285→test("^ operator (build function chained)", function()
   286→an:add(object('pow_build') ^ { x = 10, y = 20 } ^ function(self)
   287→self.speed = self.x + self.y end)return 
   288→log("speed=" .. tostring(an.pow_build.speed))end)end
   289→
   290→
   291→test_pow_chain = function()return 
   292→test("^ operator (multiple chains)", function()
   293→an:add(object('pow_chain') ^ { a = 1 } ^ { b = 2 } ^ function(self)
   294→self.c = self.a + self.b end)
   295→log("a=" .. tostring(an.pow_chain.a) .. ", b=" .. tostring(an.pow_chain.b) .. ", c=" .. tostring(an.pow_chain.c))
   296→an.pow_test:kill()
   297→an.pow_build:kill()return 
   298→an.pow_chain:kill()end)end
   299→

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: ^ operator (set properties)
   278→test_pow_set = ->
   279→  test "^ operator (set properties)", ->
   280→    an\add object('pow_test') ^ {x: 100, y: 200, hp: 50}
   281→    log "x=#{an.pow_test.x}, y=#{an.pow_test.y}, hp=#{an.pow_test.hp}"
   282→
   283→-- Test 33: ^ operator (build function)
   284→test_pow_build = ->
   285→  test "^ operator (build function)", ->
   286→    an\add object('pow_build') ^ =>
   287→      @x = 10
   288→      @y = 20
   289→      @speed = @x + @y
   290→    log "x=#{an.pow_build.x}, y=#{an.pow_build.y}, speed=#{an.pow_build.speed}"
   291→    an.pow_test\kill!
   292→    an.pow_build\kill!
   293→
   294→-- Test 35: Final
   295→test_final = ->
   296→  test "Final state", ->

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   347→    test_circular_links!
   348→  elseif frame == 20
   349→    test_after_circular!
   350→    test_link_cleanup!
   351→  elseif frame == 21
   352→    test_after_linker_cleanup!
   353→  elseif frame == 22
   354→    test_pow_set!
   355→    test_pow_build!
   356→  elseif frame == 23
   357→    test_final!
   358→

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   290→    log "x=#{an.pow_build.x}, y=#{an.pow_build.y}, speed=#{an.pow_build.speed}"
   291→    an.pow_test\kill!
   292→    an.pow_build\kill!
   293→
   294→-- Test 34: Final
   295→test_final = ->
   296→  test "Final state", ->
   297→    log "All: #{names an\all!}"
   298→    print "\n=== All tests complete ==="
   299→

Rewritten built main.lua
Anchor Engine starting...
Game folder: .
Loading: main.lua
OpenGL 3.3 loaded
Renderer: NVIDIA GeForce RTX 2060/PCIe/SSE2
Shader program created
Game VAO/VBO created (stride=64 bytes)
Screen shader created
Screen VAO/VBO created
Audio engine initialized
Initialization complete. Press ESC to exit, F11 for fullscreen.
Display refresh rate: 60Hz

=== Test 1: Complex tree (4 levels deep) ===
  All: a, b, c, d, e, f, g, h, i, j, k
  Expected: a, b, c, d, e, f, g, h, i, j, k
  Count: 11

=== Test 2: Bidirectional named links ===
  an.a exists: true
  an.a.an == an: true
  an.f.h.f == an.f: true
  an.a.b.c.d.c == an.a.b.c: true

=== Test 3: Tags and is() method ===
  Enemies: a, b, h
  Flying: a
  Bosses: h
  a\is 'enemy': true
... [437 more lines]

The user doesn't want to proceed with this tool use. The tool use was rejected (eg. if it was a file edit, the new_string was NOT written to the file). To tell you how to proceed, the user said:
so it would work with an empty object 'pow_assign' ^ {a: 1, b: 2}?

# YueScript Macros Explained

## Overview
Macros in YueScript enable code generation during compilation. They're functions that evaluate at compile time and insert generated code into the final output.

## Definition Syntax
Macros are defined using the `macro` keyword:
```
macro NAME = (args) -> "generated code"
```

## Usage
Macros are invoked with the `$` prefix:
```
$MACRO_NAME arg1, arg2
```

## Key Capabilities

**Basic Code Generation:**
Macros can return YueScript or Lua code as strings. For instance, "a macro function can either return a YueScript string or a config table containing Lua codes."

**Raw Lua Insertion:**
Returning a config table with `type: "lua"` allows direct Lua code injection:
```
macro lua = (code) -> { :code, type: "lua" }
```

**Module Export:**
"Macro functions can be exported from a module and get imported in another module" using import syntax with the `$` symbol.
... [9 more lines]

1→# Anchor Engine Specification
     2→
     3→*Anchor is a 2D game engine built around locality of behavior and minimal cognitive overhead. Code that belongs together stays together.*
     4→
     5→---
     6→
     7→## Table of Contents
     8→
     9→1. [Core Philosophy](#core-philosophy)
    10→2. [The Object Tree](#the-object-tree)
    11→3. [Lifecycle](#lifecycle)
    12→4. [Colliders, Springs, and Timers](#colliders-springs-and-timers)
    13→5. [Locality of Behavior](#locality-of-behavior)
    14→6. [Drawing](#drawing)
    15→7. [Lua Syntax Features](#lua-syntax-features)
    16→8. [YueScript Alternative](#yuescript-alternative)
    17→9. [YueScript Class System Integration](#yuescript-class-system-integration)
    18→10. [Technology Stack](#technology-stack)
    19→11. [Rendering](#rendering)
    20→12. [Error Handling](#error-handling)
    21→13. [Build and Distribution](#build-and-distribution)
    22→14. [File Structure](#file-structure)
    23→15. [Performance Path](#performance-path)
    24→16. [Deferred Features](#deferred-features)
    25→
    26→---
    27→
    28→## Core Philosophy
    29→
    30→### Locality of Behavior
... [1473 more lines]

File created successfully at: E:\a327ex\Anchor\reference\operators-vs-methods.md

Command running in background with ID: b404743. Output is being written to: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex-Anchor\tasks\b404743.output

The file E:\a327ex\Anchor\reference\operators-vs-methods.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→# Operators vs Methods Comparison
     2→
     3→This document shows ANCHOR.md examples rewritten using method chaining instead of operators. Both forms do exactly the same operations.
     4→
     5→---
     6→
     7→## Method Equivalents
     8→
     9→| Operator | Method |
    10→|----------|--------|
    11→| `^ {props}` | `\set {props}` |
    12→| `^ => ...` | `\build => ...` |
    13→| `/ fn` | `\action fn` |
    14→| `/ U fn` | `\early_action fn` |
    15→| `/ L fn` | `\late_action fn` |
    16→| `/ X 'name', fn` | `\action 'name', fn` |
    17→| `+ child` | `\add child` |
    18→| `>> parent` | `\add_to parent` |
    19→
    20→All methods return `@` for chaining, except `\add_to` which returns the parent (like `>>`).
    21→
    22→---
    23→
    24→## Core Philosophy Example
    25→
    26→**With operators:**
    27→```yuescript
    28→E 'player' ^ {x: 100, y: 100, hp: 100}
    29→  / X 'movement', (dt) =>
... [298 more lines]

Command running in background with ID: b2bb3d1. Output is being written to: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex-Anchor\tasks\b2bb3d1.output

The file E:\a327ex\Anchor\reference\operators-vs-methods.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→# Operators vs Methods Comparison
     2→
     3→This document shows ANCHOR.md examples rewritten using methods without chaining.
     4→
     5→---
     6→
     7→## Method Equivalents
     8→
     9→| Operator | Method |
    10→|----------|--------|
    11→| `^ {props}` | `\set {props}` |
    12→| `^ => ...` | `\build => ...` |
    13→| `/ fn` | `\action fn` |
    14→| `/ U fn` | `\early_action fn` |
    15→| `/ L fn` | `\late_action fn` |
    16→| `/ X 'name', fn` | `\action 'name', fn` |
    17→| `+ child` | `\add child` |
    18→| `>> parent` | `parent\add obj` |
    19→
    20→---
    21→
    22→## Core Philosophy Example
    23→
    24→**With operators:**
    25→```yuescript
    26→E 'player' ^ {x: 100, y: 100, hp: 100}
    27→  / X 'movement', (dt) =>
    28→      @x += @vx * dt
    29→      @y += @vy * dt
... [297 more lines]

Command running in background with ID: b1e9f7c. Output is being written to: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex-Anchor\tasks\b1e9f7c.output

The file E:\a327ex\Anchor\reference\operators-vs-methods.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→# Operators vs Short Methods Comparison
     2→
     3→This document shows ANCHOR.md examples rewritten using single-letter method names.
     4→
     5→---
     6→
     7→## Method Aliases
     8→
     9→| Operator | Method | Short |
    10→|----------|--------|-------|
    11→| `^ {props}` | `\set {props}` | `\S {props}` |
    12→| `^ => ...` | `\build => ...` | `\B => ...` |
    13→| `/ U fn` | `\early_action fn` | `\E fn` |
    14→| `/ fn` or `/ X 'n', fn` | `\action fn` | `\X fn` or `\X 'n', fn` |
    15→| `/ L fn` | `\late_action fn` | `\L fn` |
    16→| `+ child` | `\add child` | `\A child` |
    17→| `>> parent` | `\flow_to parent` | `\F parent` |
    18→
    19→---
    20→
    21→## Core Philosophy Example
    22→
    23→**With operators:**
    24→```yuescript
    25→E 'player' ^ {x: 100, y: 100, hp: 100}
    26→  / X 'movement', (dt) =>
    27→      @x += @vx * dt
    28→      @y += @vy * dt
    29→  / L 'draw', (dt) =>
... [306 more lines]

Command running in background with ID: be47483. Output is being written to: C:\Users\adn\AppData\Local\Temp\claude\E--a327ex-Anchor\tasks\be47483.output

1→global *
     2→
     3→class object
     4→  --[[
     5→    Creates a new object with optional name.
     6→
     7→    Usage:
     8→      obj = object!           -- anonymous object
     9→      obj = object 'player'   -- named object
    10→
    11→    Properties initialized:
    12→      @name     - string or nil, used for bidirectional links
    13→      @parent   - reference to parent object, nil if root
    14→      @children - array of child objects
    15→      @dead     - boolean, true when killed (removed at end of frame)
    16→      @tags     - set of tags, used for querying with all(tag) and is()
    17→  ]]
    18→  new: (name) =>
    19→    @name = name
    20→    @parent = nil
    21→    @children = {}
    22→    @dead = false
    23→    @tags = {}
    24→
    25→  --[[
    26→    Adds a child to this object's tree.
    27→
    28→    Usage:
    29→      @\add child
    30→      @\add(object 'timer')\add(object 'collider')  -- chainable
... [30 more lines]

1→global *
     2→
     3→class object
     4→  --[[
     5→    Creates a new object with optional name.
     6→
     7→    Usage:
     8→      obj = object!           -- anonymous object
     9→      obj = object 'player'   -- named object
    10→
    11→    Properties initialized:
    12→      @name     - string or nil, used for bidirectional links
    13→      @parent   - reference to parent object, nil if root
    14→      @children - array of child objects
    15→      @dead     - boolean, true when killed (removed at end of frame)
    16→      @tags     - set of tags, used for querying with all(tag) and is()
    17→  ]]
    18→  new: (name) =>
    19→    @name = name
    20→    @parent = nil
    21→    @children = {}
    22→    @dead = false
    23→    @tags = {}
    24→
    25→  --[[
    26→    Adds a child to this object's tree.
    27→
    28→    Usage:
    29→      @\add child
    30→      @\add(object 'timer')\add(object 'collider')  -- chainable
... [409 more lines]

<tool_use_error>String to replace not found in file.
String:     @late_actions_to_remove[] = i

  --[[
    Internal: runs early phase for this object.</tool_use_error>

The file E:\a327ex\Anchor\reference\operators-vs-methods.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→# Operators vs Short Methods Comparison
     2→
     3→This document shows ANCHOR.md examples rewritten using single-letter method names.
     4→
     5→---
     6→
     7→## Method Aliases
     8→
     9→| Operator | Method | Short |
    10→|----------|--------|-------|
    11→| `object 'name'` | `object 'name'` | `E 'name'` |
    12→| `^ {props}` | `\set {props}` | `\T {props}` |
    13→| `^ => ...` | `\build => ...` | `\V => ...` |
    14→| `/ U fn` | `\early_action fn` | `\Y fn` |
    15→| `/ fn` or `/ X 'n', fn` | `\action fn` | `\X fn` or `\X 'n', fn` |
    16→| `/ L fn` | `\late_action fn` | `\Z fn` |
    17→| `+ child` | `\add child` | `\A child` |
    18→| `>> parent` | `\flow_to parent` | `\F parent` |
    19→| `\link target` | `\link target` | `\L target` |
    20→
    21→---
    22→
    23→## Core Philosophy Example

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    19→| `\link target` | `\link target` | `\L target` |
    20→
    21→---
    22→
    23→## Core Philosophy Example
    24→
    25→**With operators:**
    26→```yuescript
    27→E 'player' ^ {x: 100, y: 100, hp: 100}
    28→  / X 'movement', (dt) =>
    29→      @x += @vx * dt
    30→      @y += @vy * dt
    31→  / L 'draw', (dt) =>
    32→      game\circle @x, @y, 10, colors.white
    33→  >> arena
    34→```
    35→
    36→**With short methods:**
    37→```yuescript
    38→player = E 'player'
    39→player\T {x: 100, y: 100, hp: 100}
    40→player\X 'movement', (dt) =>
    41→  @x += @vx * dt
    42→  @y += @vy * dt
    43→player\Z 'draw', (dt) =>
    44→  game\circle @x, @y, 10, colors.white
    45→player\F arena
    46→```
    47→
... [3 more lines]

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    46→```
    47→
    48→---
    49→
    50→## Simple Particle (Anonymous)
    51→
    52→**With operators:**
    53→```yuescript
    54→E! ^ {x: x, y: y, r: an\random_angle!, duration: 0.5}
    55→   / (dt) =>
    56→       @x += 50 * math.cos(@r) * dt
    57→       @y += 50 * math.sin(@r) * dt
    58→       @duration -= dt
    59→       return true if @duration <= 0
    60→       effects\circle @x, @y, 3, color
    61→   >> arena
    62→```
    63→
    64→**With short methods:**
    65→```yuescript
    66→p = E!
    67→p\T {x: x, y: y, r: an\random_angle!, duration: 0.5}
    68→p\X (dt) =>
    69→  @x += 50 * math.cos(@r) * dt
    70→  @y += 50 * math.sin(@r) * dt
    71→  @duration -= dt
    72→  return true if @duration <= 0
    73→  effects\circle @x, @y, 3, color
    74→p\F arena
... [5 more lines]

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    75→```
    76→
    77→---
    78→
    79→## Named Ball
    80→
    81→**With operators:**
    82→```yuescript
    83→E 'ball' ^ {x: 240, y: 135, vx: 100, vy: 100}
    84→         / (dt) =>
    85→             @x += @vx * dt
    86→             @y += @vy * dt
    87→             game\circle @x, @y, 8, an.colors.white
    88→         >> arena
    89→```
    90→
    91→**With short methods:**
    92→```yuescript
    93→ball = E 'ball'
    94→ball\T {x: 240, y: 135, vx: 100, vy: 100}
    95→ball\X (dt) =>
    96→  @x += @vx * dt
    97→  @y += @vy * dt
    98→  game\circle @x, @y, 8, an.colors.white
    99→ball\F arena
   100→```
   101→
   102→---
   103→
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   100→```
   101→
   102→---
   103→
   104→## With Build Function
   105→
   106→**With operators:**
   107→```yuescript
   108→E! ^ =>
   109→       @x, @y = 100, 200
   110→       @ + timer!
   111→   / (dt) =>
   112→       @x += 50 * dt
   113→       game\circle @x, @y, 10, color
   114→   >> arena
   115→```
   116→
   117→**With short methods:**
   118→```yuescript
   119→obj = E!
   120→obj\V =>
   121→  @x, @y = 100, 200
   122→  @\A timer!
   123→obj\X (dt) =>
   124→  @x += 50 * dt
   125→  game\circle @x, @y, 10, color
   126→obj\F arena
   127→```
   128→
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   127→```
   128→
   129→---
   130→
   131→## Named Actions (Water Simulation)
   132→
   133→**With operators:**
   134→```yuescript
   135→class arena extends object
   136→  new: =>
   137→    super 'arena'
   138→    @water_springs_count = 52
   139→
   140→    @ / U 'water_sim', (dt) =>
   141→      for k = 1, 8
   142→        for i = 1, @water_springs_count
   143→          -- propagate spring velocities
   144→
   145→    @ / L 'water_draw', (dt) =>
   146→      @water_surface = {}
   147→      for spring in *@water_springs.children
   148→        -- build polyline
   149→```
   150→
   151→**With short methods:**
   152→```yuescript
   153→class arena extends object
   154→  new: =>
   155→    super 'arena'
... [16 more lines]

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   167→```
   168→
   169→---
   170→
   171→## Player Class
   172→
   173→**With operators:**
   174→```yuescript
   175→class player extends object
   176→  new: (x, y, args) =>
   177→    super 'player', args
   178→    @x, @y = x, y
   179→
   180→    @ + collider 'player', 'dynamic', 'circle', 12
   181→    @ + spring 'main', 1, 200, 10
   182→    @ + spring 'shoot', 1, 300, 15
   183→
   184→    @ / X 'input', (dt) =>
   185→      return if @stunned
   186→      @vx = -@speed if an\is_down 'left'
   187→      @vx = @speed if an\is_down 'right'
   188→
   189→    @ / (dt) =>
   190→      @x, @y = @collider\get_position!
   191→
   192→    @ / L 'draw', (dt) =>
   193→      game\push @x, @y, 0, @main.x, @main.x
   194→      game\circle @x, @y, 12, colors.green
   195→      game\pop!
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   239→```
   240→
   241→---
   242→
   243→## Spawning with Replacement
   244→
   245→**With operators:**
   246→```yuescript
   247→arena.spawn_ball = =>
   248→  E 'ball' ^ {x: 240, y: 135, vx: 100, vy: 100}
   249→           / (dt) =>
   250→               @x += @vx * dt
   251→               @y += @vy * dt
   252→               game\circle @x, @y, 8, an.colors.white
   253→           >> @
   254→```
   255→
   256→**With short methods:**
   257→```yuescript
   258→arena.spawn_ball = =>
   259→  ball = E 'ball'
   260→  ball\T {x: 240, y: 135, vx: 100, vy: 100}
   261→  ball\X (dt) =>
   262→    @x += @vx * dt
   263→    @y += @vy * dt
   264→    game\circle @x, @y, 8, an.colors.white
   265→  ball\F @
   266→```
   267→
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   266→```
   267→
   268→---
   269→
   270→## Full Particle Example
   271→
   272→**With operators (12 lines):**
   273→```yuescript
   274→E! ^ =>
   275→       @x, @y = x, y
   276→       @v = an\random_float 50, 100
   277→       @r = an\random_angle!
   278→       @duration = 0.5
   279→   / (dt) =>
   280→       @x += @v * math.cos(@r) * dt
   281→       @y += @v * math.sin(@r) * dt
   282→       @duration -= dt
   283→       return true if @duration <= 0
   284→       effects\circle @x, @y, 3, color
   285→   >> arena
   286→```
   287→
   288→**With short methods (14 lines):**
   289→```yuescript
   290→p = E!
   291→p\V =>
   292→  @x, @y = x, y
   293→  @v = an\random_float 50, 100
   294→  @r = an\random_angle!
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   303→```
   304→
   305→---
   306→
   307→## Summary
   308→
   309→**Character count comparison (class constructor):**
   310→```yuescript
   311→@ + timer!      -- 10 chars (operator)
   312→@\A timer!      -- 10 chars (short method)
   313→
   314→@ / X 'input', fn   -- 15 chars (operator)
   315→@\X 'input', fn     -- 15 chars (short method)
   316→
   317→@ / U 'sim', fn     -- 13 chars (operator)
   318→@\Y 'sim', fn       -- 13 chars (short method)
   319→```
   320→
   321→**Visual comparison:**
   322→
   323→| Operators | Short Methods |
   324→|-----------|---------------|
   325→| `object 'player'` | `E 'player'` |
   326→| `obj ^ {x: 1}` | `obj\T {x: 1}` |
   327→| `obj ^ => ...` | `obj\V => ...` |
   328→| `@ + timer!` | `@\A timer!` |
   329→| `@ / U 'sim', fn` | `@\Y 'sim', fn` |
   330→| `@ / X 'input', fn` | `@\X 'input', fn` |
   331→| `@ / L 'draw', fn` | `@\Z 'draw', fn` |
... [23 more lines]

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    32→      game\circle @x, @y, 10, colors.white
    33→  >> arena
    34→```
    35→
    36→**With short methods:**
    37→```yuescript
    38→p = E 'player'
    39→p\T {x: 100, y: 100, hp: 100}
    40→p\X 'movement', (dt) =>
    41→  @x += @vx * dt
    42→  @y += @vy * dt
    43→p\Z 'draw', (dt) =>
    44→  game\circle @x, @y, 10, colors.white
    45→p\F arena
    46→```
    47→
    48→---
    49→
    50→## Simple Particle (Anonymous)

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    87→             game\circle @x, @y, 8, an.colors.white
    88→         >> arena
    89→```
    90→
    91→**With short methods:**
    92→```yuescript
    93→b = E 'ball'
    94→b\T {x: 240, y: 135, vx: 100, vy: 100}
    95→b\X (dt) =>
    96→  @x += @vx * dt
    97→  @y += @vy * dt
    98→  game\circle @x, @y, 8, an.colors.white
    99→b\F arena
   100→```
   101→
   102→---
   103→
   104→## With Build Function

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   113→       game\circle @x, @y, 10, color
   114→   >> arena
   115→```
   116→
   117→**With short methods:**
   118→```yuescript
   119→o = E!
   120→o\V =>
   121→  @x, @y = 100, 200
   122→  @\A timer!
   123→o\X (dt) =>
   124→  @x += 50 * dt
   125→  game\circle @x, @y, 10, color
   126→o\F arena
   127→```
   128→
   129→---
   130→
   131→## Named Actions (Water Simulation)

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   252→               game\circle @x, @y, 8, an.colors.white
   253→           >> @
   254→```
   255→
   256→**With short methods:**
   257→```yuescript
   258→arena.spawn_ball = =>
   259→  b = E 'ball'
   260→  b\T {x: 240, y: 135, vx: 100, vy: 100}
   261→  b\X (dt) =>
   262→    @x += @vx * dt
   263→    @y += @vy * dt
   264→    game\circle @x, @y, 8, an.colors.white
   265→  b\F @
   266→```
   267→
   268→---
   269→
   270→## Full Particle Example

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   319→```
   320→
   321→**Visual comparison:**
   322→
   323→| Operators | Short Methods |
   324→|-----------|---------------|
   325→| `object 'player'` | `E 'player'` |
   326→| `o ^ {x: 1}` | `o\T {x: 1}` |
   327→| `o ^ => ...` | `o\V => ...` |
   328→| `@ + timer!` | `@\A timer!` |
   329→| `@ / U 'sim', fn` | `@\Y 'sim', fn` |
   330→| `@ / X 'input', fn` | `@\X 'input', fn` |
   331→| `@ / L 'draw', fn` | `@\Z 'draw', fn` |
   332→| `o >> arena` | `o\F arena` |
   333→| `o\link target` | `o\L target` |
   334→
   335→**Short method reference:**
   336→| Letter | Method | Purpose |
   337→|--------|--------|---------|

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     3→This document shows ANCHOR.md examples rewritten using single-letter method names.
     4→
     5→---
     6→
     7→## Method Aliases
     8→
     9→| Operator | Method | Short |
    10→|----------|--------|-------|
    11→| `object 'name'` | `object 'name'` | `T 'name'` |
    12→| `^ {props}` | `\set {props}` | `\S {props}` |
    13→| `^ => ...` | `\build => ...` | `\B => ...` |
    14→| `/ U fn` | `\early_action fn` | `\E fn` |
    15→| `/ fn` or `/ X 'n', fn` | `\action fn` | `\X fn` or `\X 'n', fn` |
    16→| `/ L fn` | `\late_action fn` | `\L fn` |
    17→| `+ child` | `\add child` | `\A child` |
    18→| `>> parent` | `\flow_to parent` | `\F parent` |
    19→| `\link target` | `\link target` | `\K target` |
    20→
    21→---
    22→
    23→## Core Philosophy Example

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    32→      game\circle @x, @y, 10, colors.white
    33→  >> arena
    34→```
    35→
    36→**With short methods:**
    37→```yuescript
    38→p = T 'player'
    39→p\S {x: 100, y: 100, hp: 100}
    40→p\X 'movement', (dt) =>
    41→  @x += @vx * dt
    42→  @y += @vy * dt
    43→p\L 'draw', (dt) =>
    44→  game\circle @x, @y, 10, colors.white
    45→p\F arena
    46→```
    47→
    48→---
    49→
    50→## Simple Particle (Anonymous)

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    60→       effects\circle @x, @y, 3, color
    61→   >> arena
    62→```
    63→
    64→**With short methods:**
    65→```yuescript
    66→p = T!
    67→p\S {x: x, y: y, r: an\random_angle!, duration: 0.5}
    68→p\X (dt) =>
    69→  @x += 50 * math.cos(@r) * dt
    70→  @y += 50 * math.sin(@r) * dt
    71→  @duration -= dt
    72→  return true if @duration <= 0
    73→  effects\circle @x, @y, 3, color
    74→p\F arena
    75→```
    76→
    77→---
    78→
    79→## Named Ball

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    87→             game\circle @x, @y, 8, an.colors.white
    88→         >> arena
    89→```
    90→
    91→**With short methods:**
    92→```yuescript
    93→b = T 'ball'
    94→b\S {x: 240, y: 135, vx: 100, vy: 100}
    95→b\X (dt) =>
    96→  @x += @vx * dt
    97→  @y += @vy * dt
    98→  game\circle @x, @y, 8, an.colors.white
    99→b\F arena
   100→```
   101→
   102→---
   103→
   104→## With Build Function

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   113→       game\circle @x, @y, 10, color
   114→   >> arena
   115→```
   116→
   117→**With short methods:**
   118→```yuescript
   119→o = T!
   120→o\B =>
   121→  @x, @y = 100, 200
   122→  @\A timer!
   123→o\X (dt) =>
   124→  @x += 50 * dt
   125→  game\circle @x, @y, 10, color
   126→o\F arena
   127→```
   128→
   129→---
   130→
   131→## Named Actions (Water Simulation)

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   147→      for spring in *@water_springs.children
   148→        -- build polyline
   149→```
   150→
   151→**With short methods:**
   152→```yuescript
   153→class arena extends object
   154→  new: =>
   155→    super 'arena'
   156→    @water_springs_count = 52
   157→
   158→    @\E 'water_sim', (dt) =>
   159→      for k = 1, 8
   160→        for i = 1, @water_springs_count
   161→          -- propagate spring velocities
   162→
   163→    @\L 'water_draw', (dt) =>
   164→      @water_surface = {}
   165→      for spring in *@water_springs.children
   166→        -- build polyline
   167→```
   168→
   169→---
   170→
   171→## Player Class

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   194→      game\circle @x, @y, 12, colors.green
   195→      game\pop!
   196→```
   197→
   198→**With short methods:**
   199→```yuescript
   200→class player extends object
   201→  new: (x, y, args) =>
   202→    super 'player', args
   203→    @x, @y = x, y
   204→
   205→    @\A collider 'player', 'dynamic', 'circle', 12
   206→    @\A spring 'main', 1, 200, 10
   207→    @\A spring 'shoot', 1, 300, 15
   208→
   209→    @\X 'input', (dt) =>
   210→      return if @stunned
   211→      @vx = -@speed if an\is_down 'left'
   212→      @vx = @speed if an\is_down 'right'
   213→
   214→    @\X (dt) =>
   215→      @x, @y = @collider\get_position!
   216→
   217→    @\L 'draw', (dt) =>
   218→      game\push @x, @y, 0, @main.x, @main.x
   219→      game\circle @x, @y, 12, colors.green
   220→      game\pop!
   221→```
   222→
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   252→               game\circle @x, @y, 8, an.colors.white
   253→           >> @
   254→```
   255→
   256→**With short methods:**
   257→```yuescript
   258→arena.spawn_ball = =>
   259→  b = T 'ball'
   260→  b\S {x: 240, y: 135, vx: 100, vy: 100}
   261→  b\X (dt) =>
   262→    @x += @vx * dt
   263→    @y += @vy * dt
   264→    game\circle @x, @y, 8, an.colors.white
   265→  b\F @
   266→```
   267→
   268→---
   269→
   270→## Full Particle Example

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   284→       effects\circle @x, @y, 3, color
   285→   >> arena
   286→```
   287→
   288→**With short methods (14 lines):**
   289→```yuescript
   290→p = T!
   291→p\B =>
   292→  @x, @y = x, y
   293→  @v = an\random_float 50, 100
   294→  @r = an\random_angle!
   295→  @duration = 0.5
   296→p\X (dt) =>
   297→  @x += @v * math.cos(@r) * dt
   298→  @y += @v * math.sin(@r) * dt
   299→  @duration -= dt
   300→  return true if @duration <= 0
   301→  effects\circle @x, @y, 3, color
   302→p\F arena
   303→```
   304→
   305→---
   306→
   307→## Summary

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   305→---
   306→
   307→## Summary
   308→
   309→**Character count comparison (class constructor):**
   310→```yuescript
   311→@ + timer!      -- 10 chars (operator)
   312→@\A timer!      -- 10 chars (short method)
   313→
   314→@ / X 'input', fn   -- 15 chars (operator)
   315→@\X 'input', fn     -- 15 chars (short method)
   316→
   317→@ / U 'sim', fn     -- 13 chars (operator)
   318→@\E 'sim', fn       -- 13 chars (short method)
   319→```
   320→
   321→**Visual comparison:**
   322→
   323→| Operators | Short Methods |
   324→|-----------|---------------|
   325→| `object 'player'` | `T 'player'` |
   326→| `o ^ {x: 1}` | `o\S {x: 1}` |
   327→| `o ^ => ...` | `o\B => ...` |
   328→| `@ + timer!` | `@\A timer!` |
   329→| `@ / U 'sim', fn` | `@\E 'sim', fn` |
   330→| `@ / X 'input', fn` | `@\X 'input', fn` |
   331→| `@ / L 'draw', fn` | `@\L 'draw', fn` |
   332→| `o >> arena` | `o\F arena` |
   333→| `o\link target` | `o\K target` |
... [21 more lines]

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     5→---
     6→
     7→## Method Aliases
     8→
     9→| Operator | Method | Short |
    10→|----------|--------|-------|
    11→| `object 'name'` | `object 'name'` | `T 'name'` |
    12→| `^ {props}` | `\set {props}` | `\R {props}` |
    13→| `^ => ...` | `\build => ...` | `\U => ...` |
    14→| `/ U fn` | `\early_action fn` | `\E fn` |
    15→| `/ fn` or `/ X 'n', fn` | `\action fn` | `\X fn` or `\X 'n', fn` |
    16→| `/ L fn` | `\late_action fn` | `\L fn` |
    17→| `+ child` | `\add child` | `\A child` |

The file E:\a327ex\Anchor\reference\operators-vs-methods.md has been updated. All occurrences of 'p\S {' were successfully replaced with 'p\R {'.

The file E:\a327ex\Anchor\reference\operators-vs-methods.md has been updated. All occurrences of 'b\S {' were successfully replaced with 'b\R {'.

The file E:\a327ex\Anchor\reference\operators-vs-methods.md has been updated. All occurrences of 'o\B =>' were successfully replaced with 'o\U =>'.

The file E:\a327ex\Anchor\reference\operators-vs-methods.md has been updated. All occurrences of 'p\B =>' were successfully replaced with 'p\U =>'.

<tool_use_error>String to replace not found in file.
String: | `o ^ {x: 1}` | `o\S {x: 1}` |
| `o ^ => ...` | `o\B => ...` |</tool_use_error>

320→
   321→**Visual comparison:**
   322→
   323→| Operators | Short Methods |
   324→|-----------|---------------|
   325→| `object 'player'` | `T 'player'` |
   326→| `o ^ {x: 1}` | `o\S {x: 1}` |
   327→| `o ^ => ...` | `o\U => ...` |
   328→| `@ + timer!` | `@\A timer!` |
   329→| `@ / U 'sim', fn` | `@\E 'sim', fn` |
   330→| `@ / X 'input', fn` | `@\X 'input', fn` |
   331→| `@ / L 'draw', fn` | `@\L 'draw', fn` |
   332→| `o >> arena` | `o\F arena` |
   333→| `o\link target` | `o\K target` |
   334→
   335→**Short method reference:**
   336→| Letter | Method | Purpose |
   337→|--------|--------|---------|
   338→| T | object | Create object |
   339→| S | set | Set properties |
   340→| B | build | Run build function |
   341→| E | early_action | Early phase action |
   342→| X | action | Main phase action |
   343→| L | late_action | Late phase action |
   344→| A | add | Add child |
   345→| F | flow_to | Add self to parent |
   346→| K | link | Link to target |
   347→
   348→**Verdict:**
   349→- Short methods are nearly as compact as operators
... [5 more lines]

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   322→
   323→| Operators | Short Methods |
   324→|-----------|---------------|
   325→| `object 'player'` | `T 'player'` |
   326→| `o ^ {x: 1}` | `o\R {x: 1}` |
   327→| `o ^ => ...` | `o\U => ...` |
   328→| `@ + timer!` | `@\A timer!` |
   329→| `@ / U 'sim', fn` | `@\E 'sim', fn` |
   330→| `@ / X 'input', fn` | `@\X 'input', fn` |

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   334→
   335→**Short method reference:**
   336→| Letter | Method | Purpose |
   337→|--------|--------|---------|
   338→| T | object | Create object |
   339→| R | set | Set properties |
   340→| U | build | Run build function |
   341→| E | early_action | Early phase action |
   342→| X | action | Main phase action |
   343→| L | late_action | Late phase action |
   344→| A | add | Add child |

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   347→
   348→**Verdict:**
   349→- Short methods are nearly as compact as operators
   350→- No expression-context limitation
   351→- Single letters (T, R, U, E, X, L, A, F, K) are learnable
   352→- Class constructors look almost identical
   353→- Only cost: variable + extra line for inline creation
   354→

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12:| `^ {props}` | `\set {props}` | `\R {props}` |
39:p\R {x: 100, y: 100, hp: 100}
67:p\R {x: x, y: y, r: an\random_angle!, duration: 0.5}
94:b\R {x: 240, y: 135, vx: 100, vy: 100}
260:  b\R {x: 240, y: 135, vx: 100, vy: 100}
326:| `o ^ {x: 1}` | `o\R {x: 1}` |

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    35→
    36→**With short methods:**
    37→```yuescript
    38→p = T 'player'
    39→p\W {x: 100, y: 100, hp: 100}
    40→p\X 'movement', (dt) =>
    41→  @x += @vx * dt
    42→  @y += @vy * dt
    43→p\L 'draw', (dt) =>

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    63→
    64→**With short methods:**
    65→```yuescript
    66→p = T!
    67→p\Y {x: x, y: y, r: an\random_angle!, duration: 0.5}
    68→p\X (dt) =>
    69→  @x += 50 * math.cos(@r) * dt
    70→  @y += 50 * math.sin(@r) * dt
    71→  @duration -= dt

<tool_use_error>Found 2 matches of the string to replace, but replace_all is false. To replace all occurrences, set replace_all to true. To replace only one occurrence, please provide more context to uniquely identify the instance.
String: b\R {x: 240, y: 135, vx: 100, vy: 100}</tool_use_error>

90→
    91→**With short methods:**
    92→```yuescript
    93→b = T 'ball'
    94→b\R {x: 240, y: 135, vx: 100, vy: 100}
    95→b\X (dt) =>
    96→  @x += @vx * dt
    97→  @y += @vy * dt
    98→  game\circle @x, @y, 8, an.colors.white
    99→b\F arena
   100→```
   101→
   102→---
   103→
   104→## With Build Function
   105→
   106→**With operators:**
   107→```yuescript
   108→E! ^ =>
   109→       @x, @y = 100, 200

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    89→```
    90→
    91→**With short methods:**
    92→```yuescript
    93→b = T 'ball'
    94→b\I {x: 240, y: 135, vx: 100, vy: 100}
    95→b\X (dt) =>
    96→  @x += @vx * dt
    97→  @y += @vy * dt
    98→  game\circle @x, @y, 8, an.colors.white
    99→b\F arena
   100→```
   101→
   102→---
   103→

255→
   256→**With short methods:**
   257→```yuescript
   258→arena.spawn_ball = =>
   259→  b = T 'ball'
   260→  b\R {x: 240, y: 135, vx: 100, vy: 100}
   261→  b\X (dt) =>
   262→    @x += @vx * dt
   263→    @y += @vy * dt
   264→    game\circle @x, @y, 8, an.colors.white
   265→  b\F @
   266→```
   267→
   268→---
   269→

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   254→```
   255→
   256→**With short methods:**
   257→```yuescript
   258→arena.spawn_ball = =>
   259→  b = T 'ball'
   260→  b\N {x: 240, y: 135, vx: 100, vy: 100}
   261→  b\X (dt) =>
   262→    @x += @vx * dt
   263→    @y += @vy * dt
   264→    game\circle @x, @y, 8, an.colors.white
   265→  b\F @
   266→```
   267→
   268→---
   269→

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   322→
   323→| Operators | Short Methods |
   324→|-----------|---------------|
   325→| `object 'player'` | `T 'player'` |
   326→| `o ^ {x: 1}` | `o\H {x: 1}` |
   327→| `o ^ => ...` | `o\U => ...` |
   328→| `@ + timer!` | `@\A timer!` |
   329→| `@ / U 'sim', fn` | `@\E 'sim', fn` |
   330→| `@ / X 'input', fn` | `@\X 'input', fn` |

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     8→
     9→| Operator | Method | Short |
    10→|----------|--------|-------|
    11→| `object 'name'` | `object 'name'` | `T 'name'` |
    12→| `^ {props}` | `\set {props}` | `\W`, `\Y`, `\I`, `\N`, `\H` |
    13→| `^ => ...` | `\build => ...` | `\U => ...` |
    14→| `/ U fn` | `\early_action fn` | `\E fn` |
    15→| `/ fn` or `/ X 'n', fn` | `\action fn` | `\X fn` or `\X 'n', fn` |
    16→| `/ L fn` | `\late_action fn` | `\L fn` |

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   335→**Short method reference:**
   336→| Letter | Method | Purpose |
   337→|--------|--------|---------|
   338→| T | object | Create object |
   339→| W/Y/I/N/H | set | Set properties |
   340→| U | build | Run build function |
   341→| E | early_action | Early phase action |
   342→| X | action | Main phase action |
   343→| L | late_action | Late phase action |

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   347→
   348→**Verdict:**
   349→- Short methods are nearly as compact as operators
   350→- No expression-context limitation
   351→- Single letters (T, W/Y/I/N/H, U, E, X, L, A, F, K) are learnable
   352→- Class constructors look almost identical
   353→- Only cost: variable + extra line for inline creation
   354→

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     8→
     9→| Operator | Method | Short |
    10→|----------|--------|-------|
    11→| `object 'name'` | `object 'name'` | `T 'name'` |
    12→| `^ {props}` | `\set {props}` | `\Y {props}` |
    13→| `^ => ...` | `\build => ...` | `\U => ...` |
    14→| `/ U fn` | `\early_action fn` | `\E fn` |
    15→| `/ fn` or `/ X 'n', fn` | `\action fn` | `\X fn` or `\X 'n', fn` |
    16→| `/ L fn` | `\late_action fn` | `\L fn` |

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    35→
    36→**With short methods:**
    37→```yuescript
    38→p = T 'player'
    39→p\Y {x: 100, y: 100, hp: 100}
    40→p\X 'movement', (dt) =>
    41→  @x += @vx * dt
    42→  @y += @vy * dt
    43→p\L 'draw', (dt) =>

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    90→
    91→**With short methods:**
    92→```yuescript
    93→b = T 'ball'
    94→b\Y {x: 240, y: 135, vx: 100, vy: 100}
    95→b\X (dt) =>
    96→  @x += @vx * dt
    97→  @y += @vy * dt
    98→  game\circle @x, @y, 8, an.colors.white

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   256→**With short methods:**
   257→```yuescript
   258→arena.spawn_ball = =>
   259→  b = T 'ball'
   260→  b\Y {x: 240, y: 135, vx: 100, vy: 100}
   261→  b\X (dt) =>
   262→    @x += @vx * dt
   263→    @y += @vy * dt
   264→    game\circle @x, @y, 8, an.colors.white

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   322→
   323→| Operators | Short Methods |
   324→|-----------|---------------|
   325→| `object 'player'` | `T 'player'` |
   326→| `o ^ {x: 1}` | `o\Y {x: 1}` |
   327→| `o ^ => ...` | `o\U => ...` |
   328→| `@ + timer!` | `@\A timer!` |
   329→| `@ / U 'sim', fn` | `@\E 'sim', fn` |
   330→| `@ / X 'input', fn` | `@\X 'input', fn` |

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   335→**Short method reference:**
   336→| Letter | Method | Purpose |
   337→|--------|--------|---------|
   338→| T | object | Create object |
   339→| Y | set | Set properties |
   340→| U | build | Run build function |
   341→| E | early_action | Early phase action |
   342→| X | action | Main phase action |
   343→| L | late_action | Late phase action |

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   347→
   348→**Verdict:**
   349→- Short methods are nearly as compact as operators
   350→- No expression-context limitation
   351→- Single letters (T, Y, U, E, X, L, A, F, K) are learnable
   352→- Class constructors look almost identical
   353→- Only cost: variable + extra line for inline creation
   354→

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285→
   286→    Late phase runs after main phase, useful for drawing and post-update logic.
   287→
   288→    Returns: @ (for chaining)
   289→  ]]
   290→  late_action: (name_or_fn, fn) =>
   291→    @late_actions = {} unless @late_actions
   292→    @late_action_names = {} unless @late_action_names
   293→    if type(name_or_fn) == 'string'
   294→      name = name_or_fn
   295→      for i, n in ipairs @late_action_names
   296→        if n == name
   297→          @late_actions[i] = fn
   298→          @[name] = fn
   299→          return @
   300→      @late_actions[] = fn
   301→      @late_action_names[] = name
   302→      @[name] = fn
   303→    else
   304→      @late_actions[] = name_or_fn
   305→      @late_action_names[] = false
   306→    @
   307→
   308→  --[[
   309→    Internal: runs early phase for this object.
   310→    Called by init.yue's update loop, not meant to be called directly.
   311→
   312→    Behavior:
   313→      - Returns immediately if @dead
   314→      - Calls @\early_update(dt) if object has an early_update method

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   299→          return @
   300→      @late_actions[] = fn
   301→      @late_action_names[] = name
   302→      @[name] = fn
   303→    else
   304→      @late_actions[] = name_or_fn
   305→      @late_action_names[] = false
   306→    @
   307→
   308→  --[[
   309→    Short method aliases and new methods for compact API.
   310→
   311→    Aliases:
   312→      E = early_action
   313→      X = action
   314→      L = late_action
   315→      A = add
   316→      K = link
   317→
   318→    New methods:
   319→      Y = set (assign properties from table)
   320→      U = build (run build function with self)
   321→      F = flow_to (add self to parent)
   322→
   323→    Usage:
   324→      p = T 'player'
   325→      p\Y {x: 100, y: 200}
   326→      p\U => @hp = 100
   327→      p\X 'move', (dt) => @x += dt
... [33 more lines]

480→          parent[child.name] = nil if child.name
   481→          child[parent.name] = nil if parent.name
   482→          child.parent = nil
   483→          table.remove parent.children, j
   484→        else
   485→          j += 1
   486→

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   478→                    table.remove entry.source.links, k
   479→          child\destroy! if child.destroy
   480→          parent[child.name] = nil if child.name
   481→          child[parent.name] = nil if parent.name
   482→          child.parent = nil
   483→          table.remove parent.children, j
   484→        else
   485→          j += 1
   486→
   487→-- Global alias: T = object
   488→T = object
   489→

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   330→      p\F arena
   331→      p\K target
   332→  ]]
   333→
   334→  -- Aliases for existing methods
   335→  E: (name_or_fn, fn) => @\early_action name_or_fn, fn
   336→  X: (name_or_fn, fn) => @\action name_or_fn, fn
   337→  L: (name_or_fn, fn) => @\late_action name_or_fn, fn
   338→  A: (child) => @\add child
   339→  K: (target, callback) => @\link target, callback
   340→
   341→  -- New methods
   342→  Y: (properties) =>
   343→    for key, value in pairs properties

175→    target.linked_from = {} unless target.linked_from
   176→    target.linked_from[] = {source: @, callback: callback}
   177→    @
   178→
   179→  --[[
   180→    Operator ^ (set/build): assigns properties or runs a build function.
   181→
   182→    Usage:
   183→      player ^ {x: 100, y: 200}   -- assign properties
   184→      player ^ => @hp = 100       -- run build function
   185→      player ^ {x: 0} ^ => @y = 10  -- chain both
   186→
   187→    Behavior:
   188→      - If other is a function: calls it with @ as argument
   189→      - If other is a table: assigns all key-value pairs to @
   190→
   191→    Returns: @ (for chaining)
   192→  ]]
   193→  <pow>: (other) =>
   194→    if type(other) == 'function'
   195→      other @
   196→    elseif type(other) == 'table'
   197→      for key, value in pairs other
   198→        @[key] = value
   199→    @
   200→
   201→  --[[
   202→    Adds an action to run during the early phase (before main update).
   203→
   204→    Usage:

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   175→    target.linked_from = {} unless target.linked_from
   176→    target.linked_from[] = {source: @, callback: callback}
   177→    @
   178→
   179→  --[[
   180→    Adds an action to run during the early phase (before main update).
   181→
   182→    Usage:
   183→      @\early_action -> print 'runs every frame'           -- anonymous
   184→      @\early_action 'input', -> @\handle_input!           -- named

275→    an.target\kill!
   276→
   277→-- Test 32: ^ operator (set properties)
   278→test_pow_set = ->
   279→  test "^ operator (set properties)", ->
   280→    an\add object('pow_test') ^ {x: 100, y: 200, hp: 50}
   281→    log "x=#{an.pow_test.x}, y=#{an.pow_test.y}, hp=#{an.pow_test.hp}"
   282→
   283→-- Test 33: ^ operator (build function)
   284→test_pow_build = ->
   285→  test "^ operator (build function)", ->
   286→    an\add object('pow_build') ^ =>
   287→      @x = 10
   288→      @y = 20
   289→      @speed = @x + @y
   290→    log "x=#{an.pow_build.x}, y=#{an.pow_build.y}, speed=#{an.pow_build.speed}"
   291→    an.pow_test\kill!
   292→    an.pow_build\kill!
   293→
   294→-- Test 34: Final
   295→test_final = ->
   296→  test "Final state", ->
   297→    log "All: #{names an\all!}"
   298→    print "\n=== All tests complete ==="
   299→
   300→an\action ->
   301→  frame += 1
   302→  if frame == 1
   303→    test_complex_tree!
   304→  elseif frame == 2
... [54 more lines]

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   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: Final
   278→test_final = ->
   279→  test "Final state", ->
   280→    log "All: #{names an\all!}"
   281→    print "\n=== All tests complete ==="

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   330→    test_circular_links!
   331→  elseif frame == 20
   332→    test_after_circular!
   333→    test_link_cleanup!
   334→  elseif frame == 21
   335→    test_after_linker_cleanup!
   336→  elseif frame == 22
   337→    test_final!
   338→

155→    @name == name_or_tag or @tags[name_or_tag]
   156→
   157→  --[[
   158→    Creates a horizontal link to another object for death notification.
   159→
   160→    Usage:
   161→      @\link target                      -- kill self when target dies
   162→      @\link target, => @homing = false  -- run callback when target dies
   163→
   164→    Behavior:
   165→      - When target dies (kill! is called), callback runs with self as argument
   166→      - If no callback provided, self is killed when target dies
   167→      - Links are bidirectional internally: @links stores outgoing, target.linked_from stores incoming
   168→      - Both are cleaned up when either object is removed from tree
   169→
   170→    Returns: @ (for chaining)
   171→  ]]
   172→  link: (target, callback) =>
   173→    @links = {} unless @links
   174→    @links[] = {target: target, callback: callback}
   175→    target.linked_from = {} unless target.linked_from
   176→    target.linked_from[] = {source: @, callback: callback}
   177→    @
   178→
   179→  --[[
   180→    Adds an action to run during the early phase (before main update).
   181→
   182→    Usage:
   183→      @\early_action -> print 'runs every frame'           -- anonymous
   184→      @\early_action 'input', -> @\handle_input!           -- named
... [10 more lines]

The file E:\a327ex\Anchor\game\object.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   172→  link: (target, callback) =>
   173→    @links = {} unless @links
   174→    @links[] = {target: target, callback: callback}
   175→    target.linked_from = {} unless target.linked_from
   176→    target.linked_from[] = {source: @, callback: callback}
   177→    @
   178→
   179→  --[[
   180→    Assigns properties from a table to this object.
   181→
   182→    Usage:
   183→      @\set {x: 100, y: 200, hp: 50}
   184→
   185→    Behavior:
   186→      - Iterates over key-value pairs in the table
   187→      - Assigns each key-value pair to @
   188→
   189→    Returns: @ (for chaining)
   190→  ]]
   191→  set: (properties) =>
   192→    for key, value in pairs properties
   193→      @[key] = value
   194→    @
   195→
   196→  --[[
   197→    Runs a build function with this object as the argument.
   198→
   199→    Usage:
   200→      @\build =>
... [36 more lines]

355→      p\Y {x: 100, y: 200}
   356→      p\U => @hp = 100
   357→      p\X 'move', (dt) => @x += dt
   358→      p\L 'draw', (dt) => draw @x, @y
   359→      p\A timer!
   360→      p\F arena
   361→      p\K target
   362→  ]]
   363→
   364→  -- Aliases for existing methods
   365→  E: (name_or_fn, fn) => @\early_action name_or_fn, fn
   366→  X: (name_or_fn, fn) => @\action name_or_fn, fn
   367→  L: (name_or_fn, fn) => @\late_action name_or_fn, fn
   368→  A: (child) => @\add child
   369→  K: (target, callback) => @\link target, callback
   370→
   371→  -- New methods
   372→  Y: (properties) =>
   373→    for key, value in pairs properties
   374→      @[key] = value
   375→    @
   376→
   377→  U: (build_function) =>
   378→    build_function @
   379→    @
   380→
   381→  F: (parent) =>
   382→    parent\add @
   383→    @
   384→
... [20 more lines]

The file E:\a327ex\Anchor\game\object.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   360→      p\F arena
   361→      p\K target
   362→  ]]
   363→
   364→  -- Aliases
   365→  E: (name_or_fn, fn) => @\early_action name_or_fn, fn
   366→  X: (name_or_fn, fn) => @\action name_or_fn, fn
   367→  L: (name_or_fn, fn) => @\late_action name_or_fn, fn
   368→  A: (child) => @\add child
   369→  K: (target, callback) => @\link target, callback
   370→  Y: (properties) => @\set properties
   371→  U: (build_function) => @\build build_function
   372→  F: (parent) => @\flow_to parent
   373→
   374→  --[[
   375→    Internal: runs early phase for this object.
   376→    Called by init.yue's update loop, not meant to be called directly.

335→      @late_action_names[] = false
   336→    @
   337→
   338→  --[[
   339→    Short method aliases and new methods for compact API.
   340→
   341→    Aliases:
   342→      E = early_action
   343→      X = action
   344→      L = late_action
   345→      A = add
   346→      K = link
   347→
   348→    New methods:
   349→      Y = set (assign properties from table)
   350→      U = build (run build function with self)
   351→      F = flow_to (add self to parent)
   352→
   353→    Usage:
   354→      p = T 'player'
   355→      p\Y {x: 100, y: 200}
   356→      p\U => @hp = 100
   357→      p\X 'move', (dt) => @x += dt
   358→      p\L 'draw', (dt) => draw @x, @y
   359→      p\A timer!
   360→      p\F arena
   361→      p\K target
   362→  ]]
   363→
   364→  -- Aliases

The file E:\a327ex\Anchor\game\object.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   334→      @late_actions[] = name_or_fn
   335→      @late_action_names[] = false
   336→    @
   337→
   338→  --[[
   339→    Short single-letter aliases for compact API.
   340→
   341→      T = object (global)
   342→      Y = set
   343→      U = build
   344→      E = early_action
   345→      X = action
   346→      L = late_action
   347→      A = add
   348→      F = flow_to
   349→      K = link
   350→
   351→    Usage:
   352→      p = T 'player'
   353→      p\Y {x: 100, y: 200}
   354→      p\U => @hp = 100
   355→      p\X 'move', (dt) => @x += dt
   356→      p\L 'draw', (dt) => draw @x, @y
   357→      p\A timer!
   358→      p\F arena
   359→      p\K target
   360→  ]]
   361→
   362→  -- Aliases
... [2 more lines]

The user doesn't want to proceed with this tool use. The tool use was rejected (eg. if it was a file edit, the new_string was NOT written to the file). To tell you how to proceed, the user said:
actually, let's do tests for the aliases first.

270→-- Test 31: After linker cleanup
   271→test_after_linker_cleanup = ->
   272→  test "After linker cleanup (linked_from cleaned)", ->
   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: Final
   278→test_final = ->
   279→  test "Final state", ->
   280→    log "All: #{names an\all!}"
   281→    print "\n=== All tests complete ==="
   282→
   283→an\action ->
   284→  frame += 1
   285→  if frame == 1
   286→    test_complex_tree!
   287→  elseif frame == 2
   288→    test_bidirectional!
   289→    test_tags!
   290→  elseif frame == 3
   291→    test_kill_middle!
   292→  elseif frame == 4
   293→    test_after_middle_cleanup!
   294→    test_replacement!
   295→  elseif frame == 5
   296→    test_kill_by_tag!
   297→  elseif frame == 6
   298→    test_after_tag_kill!
   299→    test_oneshot_action!
... [39 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   273→    log "target exists: #{an.target != nil}"
   274→    log "target.linked_from count: #{an.target.linked_from and #an.target.linked_from or 0}"
   275→    an.target\kill!
   276→
   277→-- Test 32: T alias (object)
   278→test_T_alias = ->
   279→  test "T alias (object)", ->
   280→    o = T 'alias_test'
   281→    an\add o
   282→    log "T created object: #{an.alias_test != nil}"
   283→    log "name: #{an.alias_test.name}"
   284→
   285→-- Test 33: Y alias (set)
   286→test_Y_alias = ->
   287→  test "Y alias (set)", ->
   288→    an.alias_test\Y {x: 100, y: 200, hp: 50}
   289→    log "x=#{an.alias_test.x}, y=#{an.alias_test.y}, hp=#{an.alias_test.hp}"
   290→
   291→-- Test 34: U alias (build)
   292→test_U_alias = ->
   293→  test "U alias (build)", ->
   294→    an.alias_test\U =>
   295→      @speed = @x + @y
   296→      @ready = true
   297→    log "speed=#{an.alias_test.speed}, ready=#{an.alias_test.ready}"
   298→
   299→-- Test 35: A alias (add)
   300→test_A_alias = ->
   301→  test "A alias (add)", ->
... [61 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   407→    test_circular_links!
   408→  elseif frame == 20
   409→    test_after_circular!
   410→    test_link_cleanup!
   411→  elseif frame == 21
   412→    test_after_linker_cleanup!
   413→  elseif frame == 22
   414→    test_T_alias!
   415→    test_Y_alias!
   416→    test_U_alias!
   417→  elseif frame == 23
   418→    test_A_alias!
   419→    test_action_aliases!
   420→  elseif frame == 24
   421→    test_after_action_aliases!
   422→    test_F_alias!
   423→  elseif frame == 25
   424→    test_K_alias!
   425→  elseif frame == 26
   426→    test_after_K_alias!
   427→  elseif frame == 27
   428→    test_final!
   429→

Built game/object.yue
Built game/init.yue
Built main.yue

Anchor Engine starting...
Game folder: .
Loading: main.lua
OpenGL 3.3 loaded
Renderer: NVIDIA GeForce RTX 2060/PCIe/SSE2
Shader program created
Game VAO/VBO created (stride=64 bytes)
Screen shader created
Screen VAO/VBO created
Audio engine initialized
Initialization complete. Press ESC to exit, F11 for fullscreen.
Display refresh rate: 60Hz

=== Test 1: Complex tree (4 levels deep) ===
  All: a, b, c, d, e, f, g, h, i, j, k
  Expected: a, b, c, d, e, f, g, h, i, j, k
  Count: 11

=== Test 2: Bidirectional named links ===
  an.a exists: true
  an.a.an == an: true
  an.f.h.f == an.f: true
  an.a.b.c.d.c == an.a.b.c: true

=== Test 3: Tags and is() method ===
  Enemies: a, b, h
  Flying: a
  Bosses: h
  a\is 'enemy': true
  a\is 'a': true
... [549 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   301→  test "A alias (add)", ->
   302→    an.alias_test\A object 'child_a'
   303→    log "child added: #{an.alias_test.child_a != nil}"
   304→
   305→-- Test 36: E, X, L aliases (actions)
   306→test_action_aliases = ->
   307→  test "E, X, L aliases (actions)", ->
   308→    an\add object 'action_alias_test'
   309→    an.action_alias_test.order = {}
   310→    an.action_alias_test\E ->
   311→      an.action_alias_test.order[] = 'E'
   312→      true  -- one-shot
   313→    an.action_alias_test\X ->
   314→      an.action_alias_test.order[] = 'X'
   315→      true  -- one-shot
   316→    an.action_alias_test\L ->
   317→      an.action_alias_test.order[] = 'L'
   318→      true  -- one-shot
   319→    log "Actions added via aliases"
   320→
   321→-- Test 37: After action aliases (wait one frame for all phases to complete)
   322→test_after_action_aliases_wait = ->
   323→  test "After action aliases (waiting)", ->
   324→    log "Letting E, X, L run..."
   325→
   326→-- Test 38: After action aliases (check order)
   327→test_after_action_aliases = ->
   328→  test "After action aliases (order check)", ->
   329→    log "Order: #{table.concat an.action_alias_test.order, ', '}"
... [6 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   329→    log "Order: #{table.concat an.action_alias_test.order, ', '}"
   330→    log "Expected: E, X, L"
   331→    an.action_alias_test\kill!
   332→
   333→-- Test 39: F alias (flow_to)
   334→test_F_alias = ->
   335→  test "F alias (flow_to)", ->
   336→    o = T 'flow_test'
   337→    o\Y {x: 50}
   338→    o\F an
   339→    log "flow_to worked: #{an.flow_test != nil}"
   340→    log "x=#{an.flow_test.x}"
   341→
   342→-- Test 40: K alias (link)
   343→test_K_alias = ->
   344→  test "K alias (link)", ->
   345→    an\add object 'link_target'
   346→    an\add object 'link_source'
   347→    an.link_source.survived = false
   348→    an.link_source\K an.link_target, =>
   349→      @survived = true
   350→    an.link_target\kill!
   351→    log "link callback ran: #{an.link_source.survived}"
   352→
   353→-- Test 41: After K alias
   354→test_after_K_alias = ->
   355→  test "After K alias (cleanup)", ->
   356→    log "link_target removed: #{an.link_target == nil}"
   357→    log "link_source survived: #{an.link_source != nil}"
... [9 more lines]

The file E:\a327ex\Anchor\main.yue has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   417→    test_after_circular!
   418→    test_link_cleanup!
   419→  elseif frame == 21
   420→    test_after_linker_cleanup!
   421→  elseif frame == 22
   422→    test_T_alias!
   423→    test_Y_alias!
   424→    test_U_alias!
   425→  elseif frame == 23
   426→    test_A_alias!
   427→    test_action_aliases!
   428→  elseif frame == 24
   429→    test_after_action_aliases_wait!
   430→  elseif frame == 25
   431→    test_after_action_aliases!
   432→  elseif frame == 26
   433→    test_F_alias!
   434→  elseif frame == 27
   435→    test_K_alias!
   436→  elseif frame == 28
   437→    test_after_K_alias!
   438→  elseif frame == 29
   439→    test_final!
   440→

Built main.yue
Anchor Engine starting...
Game folder: .
Loading: main.lua
OpenGL 3.3 loaded
Renderer: NVIDIA GeForce RTX 2060/PCIe/SSE2
Shader program created
Game VAO/VBO created (stride=64 bytes)
Screen shader created
Screen VAO/VBO created
Audio engine initialized
Initialization complete. Press ESC to exit, F11 for fullscreen.
Display refresh rate: 60Hz

=== Test 1: Complex tree (4 levels deep) ===
  All: a, b, c, d, e, f, g, h, i, j, k
  Expected: a, b, c, d, e, f, g, h, i, j, k
  Count: 11

=== Test 2: Bidirectional named links ===
  an.a exists: true
  an.a.an == an: true
  an.f.h.f == an.f: true
  an.a.b.c.d.c == an.a.b.c: true

=== Test 3: Tags and is() method ===
  Enemies: a, b, h
  Flying: a
  Bosses: h
  a\is 'enemy': true
... [625 more lines]

1→# Phase 10 Progress
     2→
     3→This document captures the current state of Phase 10 implementation and decisions made.
     4→
     5→---
     6→
     7→## Project Structure
     8→
     9→We moved away from submodules and symlinks to a simpler copy-based approach.
    10→
    11→### Anchor Repository
    12→
    13→```
    14→Anchor/
    15→├── engine/
    16→│   ├── src/anchor.c
    17→│   ├── build/
    18→│   │   └── anchor.exe
    19→│   └── build.bat
    20→├── game/                   # Master framework (YueScript source)
    21→│   ├── init.yue
    22→│   ├── init.lua
    23→│   ├── object.yue
    24→│   └── object.lua
    25→├── main.yue                # Test file (runs from Anchor/ root)
    26→├── main.lua
    27→├── yue.exe                 # YueScript compiler
    28→├── assets/                 # Test assets
    29→├── docs/
    30→├── reference/
... [352 more lines]

The file E:\a327ex\Anchor\docs\PHASE_10_PROGRESS.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   133→**Tagging:**
   134→- `tag(...)` — Adds one or more tags (set semantics: `@tags[t] = true`)
   135→- `is(name_or_tag)` — Returns truthy if name matches OR tag exists
   136→
   137→**Horizontal Links:**
   138→- `link(target, callback)` — When target dies, callback runs (or self dies if no callback)
   139→
   140→**Initialization:**
   141→- `set(properties)` — Assigns properties from a table to the object
   142→- `build(build_function)` — Runs a build function with self as argument
   143→- `flow_to(parent)` — Adds self to parent (reverse of add, for fluent chaining)
   144→
   145→**Actions:**
   146→- `early_action(name_or_fn, fn)` — Adds action for early phase
   147→- `action(name_or_fn, fn)` — Adds action for main phase
   148→- `late_action(name_or_fn, fn)` — Adds action for late phase
   149→

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   267→- Clears `parent[child.name]` reference
   268→- Clears `child[parent.name]` reference
   269→- Clears `child.parent` reference
   270→
   271→---
   272→
   273→## Short Aliases
   274→
   275→Single-letter aliases provide a compact API for common operations. A global `T` function creates objects, and single-letter methods handle initialization and tree operations.
   276→
   277→### Reference
   278→
   279→| Alias | Method | Purpose |
   280→|-------|--------|---------|
   281→| `T` | `object` | Create object (global function) |
   282→| `Y` | `set` | Set properties from table |
   283→| `U` | `build` | Run build function |
   284→| `E` | `early_action` | Early phase action |
   285→| `X` | `action` | Main phase action |
   286→| `L` | `late_action` | Late phase action |
   287→| `A` | `add` | Add child |
   288→| `F` | `flow_to` | Add self to parent |
   289→| `K` | `link` | Link to target |
   290→
   291→### Usage Example
   292→
   293→```yuescript
   294→-- Create a player with properties and actions
   295→p = T 'player'
... [28 more lines]

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   328→    test_tags!
   329→  -- etc.
   330→```
   331→
   332→### Test Coverage (42 tests)
   333→
   334→**Tree & Tags (1-8):**
   335→1. Complex tree (4 levels deep)
   336→2. Bidirectional named links
   337→3. Tags and is() method
   338→4. Kill middle of tree (branch)
   339→5. After cleanup (branch removed)
   340→6. Named child replacement
   341→7. Kill by tag
   342→8. After tag kill cleanup
   343→
   344→**Actions (9-20):**
   345→9. One-shot action (returns true)
   346→10. After one-shot (removed)
   347→11. Named action
   348→12. Named action runs each frame
   349→13. Replace named action
   350→14. Replaced action runs
   351→15. Early and late actions
   352→16. Named early/late actions
   353→17. Action execution order (early, main, late)
   354→18. Named early/late run each frame
   355→19. One-shot early/late actions
   356→20. After one-shot early/late
... [32 more lines]

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   412→11. **`all()` returns dead objects** — Dead check is caller's responsibility
   413→12. **Children-first destroy order** — Iterate objects in reverse for cleanup
   414→13. **Link callbacks run immediately** — During `kill()`, not deferred to cleanup
   415→14. **Default link behavior is kill** — No callback means linker dies when target dies
   416→15. **Link callback receives only self** — Target not passed; use closures if needed
   417→16. **Links don't create named refs** — Unlike `add()`, links are just death notifications
   418→17. **No custom operators** — YueScript limitations make operators impractical; short methods used instead
   419→18. **Single-letter aliases** — T, Y, U, E, X, L, A, F, K provide compact API without language hacks
   420→
   421→---
   422→
   423→## What's Implemented

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   419→18. **Single-letter aliases** — T, Y, U, E, X, L, A, F, K provide compact API without language hacks
   420→
   421→---
   422→
   423→## What's Implemented
   424→
   425→| Feature | Status |
   426→|---------|--------|
   427→| Project structure (copy-based) | Done |
   428→| YueScript compilation | Done |
   429→| `object` class (name, parent, children, dead, tags) | Done |
   430→| `add(child)` with bidirectional named links | Done |
   431→| Named child replacement | Done |
   432→| `all(tag)` iterative DFS collection | Done |
   433→| `kill(tag)` with propagation to descendants | Done |
   434→| `tag(...)` and `is(name_or_tag)` | Done |
   435→| Action system (early/main/late, named/anonymous) | Done |
   436→| Three-phase update loop | Done |
   437→| End-of-frame cleanup | Done |
   438→| Horizontal links (`link(target, callback)`) | Done |
   439→| Initialization methods (`set`, `build`, `flow_to`) | Done |
   440→| Short aliases (T, Y, U, E, X, L, A, F, K) | Done |
   441→| Documentation comments in object.yue | Done |
   442→| Test suite (42 tests) | Done |
   443→
   444→---
   445→
   446→## What's Next
   447→
... [6 more lines]

1→# Session Workflow
     2→
     3→When the user asks to end the session, follow this workflow. Complete all steps before committing (one commit per session).
     4→
     5→See the Commands section in `.claude/CLAUDE.md` for quick reference.
     6→
     7→---
     8→
     9→## End of Session Steps
    10→
    11→1. **Locate the session transcript** — find the most recent JSONL file
    12→2. **Convert to Markdown** — use a lowercase, hyphenated title slug (e.g., `engine-phase-1.md`). Date-based filenames don't work with Blot.
    13→3. **Read the converted log** to review the full session, especially if compacted. Summary must cover everything.
    14→4. **Write a detailed summary:**
    15→   - Chronological order (matching conversation flow)
    16→   - Weight to one-off fixes, attempts, problems solved
    17→   - Specific details: error messages, what was tried, what worked
    18→5. **Create a short title** (max 30 characters)
    19→6. **Show title + summary to user** — wait for approval before proceeding
    20→7. **Prepend title + summary** to the log file (replace default header)
    21→8. **Sync context files**
    22→9. **Commit** with title as subject, full summary as body:
    23→
    24→   **CRITICAL:** Copy summary text directly from the log file. Do not retype. The commit body must be character-for-character identical to the log file.
    25→
    26→   ```bash
    27→   git commit -m "Title
    28→
    29→   [COPY-PASTE exact summary from log file]
    30→
... [89 more lines]

File created successfully at: E:\a327ex\Anchor\reference\session-summary-short-aliases.md

The file E:\a327ex\Anchor\reference\session-summary-short-aliases.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→# Horizontal Links & Short Aliases
     2→
     3→## Summary
     4→
     5→This session implemented horizontal links (death notification between objects) and short single-letter method aliases. After implementing links, we explored custom operators but discovered YueScript limitations made them impractical, leading to the short alias approach.
     6→
     7→**Horizontal Links Implementation:**
     8→- Design decisions discussed and finalized:
     9→  - Timing: callbacks run immediately during `kill()`, not deferred
    10→  - Default behavior: if no callback, linker dies when target dies
    11→  - Callback receives only `self` - target not passed (use closures if needed)
    12→  - No named references created - unlike `add()`, links are just death notifications
    13→- Implemented `link(target, callback)` method in object.yue:
    14→  - Creates `@links` array on source storing `{target, callback}`
    15→  - Creates `target.linked_from` array storing `{source, callback}`
    16→  - Bidirectional storage enables efficient cleanup
    17→- Modified `kill()` method:
    18→  - Before setting `@dead = true`, processes `@linked_from` array
    19→  - Skips already-dead sources to handle circular links safely
    20→  - Runs callback if provided, otherwise kills the source
    21→- Modified `cleanup()` method:
    22→  - When removing dead child, cleans up outgoing links (removes from targets' `linked_from`)
    23→  - Also cleans up incoming links (removes from sources' `links`)
    24→- Added 10 horizontal link tests (21-30):
    25→  - Link with callback (object survives)
    26→  - Link with callback that kills self
    27→  - Link without callback (default kill)
    28→  - Circular links (no infinite loop)
    29→  - Link cleanup when linker dies
... [7 more lines]

The file E:\a327ex\Anchor\reference\session-summary-short-aliases.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→# Horizontal Links & Short Aliases
     2→
     3→## Summary
     4→
     5→This session implemented horizontal links (death notification between objects) and short single-letter method aliases. After implementing links, we explored custom operators but discovered YueScript limitations made them impractical, leading to the short alias approach.
     6→
     7→**Horizontal Links Implementation:**
     8→- Design decisions:
     9→  - Callbacks run immediately during `kill()`, not deferred to cleanup
    10→  - Default behavior: linker dies when target dies (if no callback provided)
    11→  - Callback receives only `self` - use closures if target reference needed
    12→  - No named references created - links are just death notifications
    13→- Bidirectional storage (`@links` and `target.linked_from`) enables efficient cleanup
    14→- Circular links handled safely by checking `dead` flag before processing
    15→- Added 10 tests covering callbacks, default kill, circular links, cleanup
    16→
    17→**Operators Abandoned:**
    18→- Discovered YueScript doesn't allow standalone operator expressions as statements
    19→- `obj ^ {x: 100}` fails as a statement - only works in expression context
    20→- Lua's `^` is right-associative, breaking chaining like `obj ^ {a:1} ^ {b:2}`
    21→- Created `reference/operators-vs-methods.md` comparing approaches
    22→- Decided short methods achieve similar brevity without language hacks
    23→
    24→**Naming Iterations:**
    25→- First: S, B, E, X, L, A, F
    26→- Then: E, T, V, Y, X, Z, A, F, L
    27→- Then: T, R, U, E, X, L, A, F, K
    28→- Tested W, Y, I, N, H for "set" spread across examples
    29→- Final: T (object), Y (set), U (build), E (early), X (action), L (late), A (add), F (flow), K (link)
... [23 more lines]

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