chore: import upstream snapshot with attribution

website/docs/reference/tools/animation/_category_.json

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+{
+  "label": "animation",
+  "link": {
+    "type": "doc",
+    "id": "reference/tools/animation/index"
+  },
+  "collapsed": true
+}

website/docs/reference/tools/animation/index.md

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+---
+title: "animation tools"
+sidebar_label: "animation"
+description: "MCP for Unity tools in the animation group."
+---
+
+# `animation` tools
+
+Animator control & AnimationClip creation
+
+- **[`manage_animation`](./manage_animation.md)** — Manage Unity animation: Animator control and AnimationClip creation.

website/docs/reference/tools/animation/manage_animation.md

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+---
+title: manage_animation
+sidebar_label: manage_animation
+description: "Manage Unity animation: Animator control and AnimationClip creation."
+---
+
+# `manage_animation`
+
+> **Auto-generated** from the Python tool registry. Do not hand-edit outside `<!-- examples:start --><!-- examples:end -->` blocks — the generator (`tools/generate_docs_reference.py`) will overwrite them.
+
+**Group:** `animation` &nbsp;·&nbsp; **Module:** `services.tools.manage_animation`
+
+## Description
+
+Manage Unity animation: Animator control and AnimationClip creation. Action prefixes: animator_* (play, crossfade, set parameters, get info), controller_* (create AnimatorControllers, add states/transitions/parameters), clip_* (create clips, add keyframe curves, assign to GameObjects). Action-specific parameters go in `properties` (keys match ManageAnimation.cs).
+
+## Parameters
+
+| Name | Type | Required | Description |
+|------|------|----------|-------------|
+| `action` | `str` | yes | Action to perform (prefix: animator_, controller_, clip_). |
+| `target` | `str \| None` | — | Target GameObject (name/path/id). |
+| `search_method` | `Literal['by_id', 'by_name', 'by_path', 'by_tag', 'by_layer'] \| None` | — | How to find the target GameObject. |
+| `clip_path` | `str \| None` | — | Asset path for AnimationClip (e.g. 'Assets/Animations/Walk.anim'). |
+| `controller_path` | `str \| None` | — | Asset path for AnimatorController (e.g. 'Assets/Animators/Player.controller'). |
+| `properties` | `dict[str, Any] \| str \| None` | — | Action-specific parameters (dict or JSON string). |
+
+## Returns
+
+A `dict` containing the Unity response. The exact shape depends on the action.
+
+## Examples
+
+<!-- examples:start -->
+*No examples yet. Add usage examples here — they will be preserved across regenerations.*
+<!-- examples:end -->
+