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+# M03-RND-M2-ANIMATION-PLAYBACK-001
+
+<!-- OPENWC_CLAIM:M03-RND-M2-ANIMATION-PLAYBACK-001:sindo-main-codex:2026-07-20 -->
+
+## Owner
+
+- Agent ID: `sindo-main-codex`
+- Target: M03 Renderer Facade and Safe Extraction
+- Branch: `work/sindo-main-codex/m03-m2-animation-playback`
+- Worktree: `C:\Users\sindo\open-wc-worktrees\m03-m2-animation-playback`
+
+## Outcome
+
+Extract deterministic animated M2 playback selection/phase, AnimationPlayer
+mutation and native animator data/start behavior from `StreamingWorldLoader`.
+
+## Non-goals
+
+- Duplicate or attach animated instances/batch roots.
+- Own visibility, shadow, Editor owner or build-job cursor rules.
+- Load/finalize/cache scenes or change animation eligibility.
+- Change candidate priority, phase formula, logging text or visible playback.
+
+## Paths
+
+- Exclusive: `src/render/m2/m2_animation_playback_controller.gd`,
+  `src/tools/verify_m2_animation_playback_controller.gd`,
+  `docs/modules/m2-animation-playback-controller.md`, this claim
+- Shared/hotspots: `src/scenes/streaming/streaming_world_loader.gd`, M2 animated
+  finalizer/build/prototype/material/facade/internal-access/manifest verifiers and
+  specs, `docs/modules/world-renderer.md`, `docs/modules/README.md`, `RENDER.md`,
+  `targets/03-renderer-facade.md`
+- Generated/ignored: `.godot`, native DLL, generated resources/caches and proprietary corpus
+
+## Contracts and data
+
+- Phase remains `abs(hash("path:index")) % 1000 / 1000.0`.
+- Exact animation-name priority remains ordinary Stand/Idle/Run/Walk, fish
+  Run/Walk/Swim/Stand/Idle/Death, birds Run/Walk/Swim/Stand/Idle, then
+  case-insensitive substring fallback and first-name fallback.
+- Every AnimationPlayer animation becomes linear-looping before selected play;
+  positive-length selection seeks to deterministic phase.
+- Native animators match exact script identity in depth-first order, copy the
+  same five fields, call prepare_runtime when available and set phase.
+- Runtime debug state is sampled only when existing debug mode requests it;
+  loader retains final log formatting/path normalization.
+
+## Dependencies
+
+- Requires: accepted animated scene finalizer package on master `c0a7bfb`
+- Blocks: animated M2 instance materializer extraction
+- External state: AnimationPlayer and M2NativeAnimator APIs remain engine/scene contracts
+
+## Verification
+
+- Commands: dedicated phase/selection/loop/play/seek/native-copy/start/diagnostic/
+  source/timing verifier; animated finalizer/pipeline/prototype/build/shutdown/
+  material/facade/internal-access/manifest regressions; docs/coordination/dry-run gates
+- Fixtures: synthetic AnimationPlayers and real M2NativeAnimator nodes
+- Fidelity evidence: exact priority, phase and mutation/reference contracts
+- Performance budget: 20,000 selection/phase operations under 1 second
+
+## Documentation deliverables
+
+- Inline API docs
+- Module spec with inputs/outputs, ownership and source map
+- Data-flow, lifecycle/state, sequence and dependency diagrams
+- Adjacent finalizer/build/world-renderer/module-registry/RENDER updates
+
+## Simplicity and naming
+
+- Important name introduced: `M2AnimationPlaybackController`
+- Simplest solution: stateless main-thread RefCounted over supplied Nodes/players
+- Rejected complexity: signals, playback state machine, generic animation framework
+- Unavoidable complexity: native and imported AnimationPlayer paths coexist
+- Measured optimization evidence: bounded selection/phase loop
+
+## Status
+
+- State: claimed
+- Done: playback/native ownership boundary audited on current master
+- Next: implement controller, migrate adapters, verify and document
+- Blocked by:
+
+## Handoff
+
+- Commit:
+- Results:
+- Remaining risks:
+- Documentation updated: