91 lines
2.8 KiB
Markdown
91 lines
2.8 KiB
Markdown
---
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name: timeline-track-add
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description: Add a track to a `TimelineAsset`. `trackType` accepts a kind keyword (Animation, Activation, Audio, Signal, Control, Playable, Group) or a full TrackAsset type name. Optionally nest the new track under an existing GroupTrack.
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metadata:
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generated-by: mcp-plugin-dotnet
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---
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# Timeline / Add Track
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Add a new track to a `TimelineAsset`. Tracks are the lanes a timeline plays: an `AnimationTrack` drives an Animator, an `ActivationTrack` toggles a GameObject active, an `AudioTrack` plays clips, a `SignalTrack` emits signals, a `ControlTrack` drives nested directors/particles, and a `GroupTrack` organizes other tracks.
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## Inputs
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- `assetPath` — required path to the `.playable` TimelineAsset.
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- `trackType` — required kind keyword or full TrackAsset type name.
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- `trackName` — optional display name for the new track.
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- `parentGroupName` — optional name of an existing GroupTrack to nest the new track under.
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## Behavior
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Resolves the track type, creates the track via `TimelineAsset.CreateTrack`, parents it under the named group when provided, saves the asset, and returns the new track's name, type and root index. Runs on the Unity main thread.
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## How to Call
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```bash
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unity-mcp-cli run-tool timeline-track-add --input '{
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"assetPath": "string_value",
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"trackType": "string_value",
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"trackName": "string_value",
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"parentGroupName": "string_value"
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}'
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```
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> For complex input (multi-line strings, code), save the JSON to a file and use:
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> ```bash
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> unity-mcp-cli run-tool timeline-track-add --input-file args.json
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> ```
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>
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> Or pipe via stdin (recommended):
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> ```bash
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> unity-mcp-cli run-tool timeline-track-add --input-file - <<'EOF'
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> {"param": "value"}
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> EOF
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> ```
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### Troubleshooting
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If `unity-mcp-cli` is not found, either install it globally (`npm install -g unity-mcp-cli`) or use `npx unity-mcp-cli` instead.
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Read the /unity-initial-setup skill for detailed installation instructions.
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## Input
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| Name | Type | Required | Description |
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|------|------|----------|-------------|
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| `assetPath` | `string` | Yes | Assets-rooted path to the TimelineAsset (.playable). |
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| `trackType` | `string` | Yes | Track kind keyword (Animation/Activation/Audio/Signal/Control/Playable/Group) or full TrackAsset type name. |
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| `trackName` | `string` | No | Optional display name for the new track. |
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| `parentGroupName` | `string` | No | Optional name of an existing GroupTrack to nest the new track under. |
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### Input JSON Schema
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```json
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{
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"type": "object",
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"properties": {
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"assetPath": {
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"type": "string"
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},
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"trackType": {
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"type": "string"
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},
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"trackName": {
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"type": "string"
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},
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"parentGroupName": {
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"type": "string"
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}
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},
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"required": [
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"assetPath",
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"trackType"
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]
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}
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```
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## Output
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This tool does not return structured output.
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