anim_add_track
Add a track to an Animation and set its target path (undoable). Returns the new track index.
This record as markdown: /tools/breakpoint-mcp/anim-add-track.md
What anim_add_track does on Breakpoint
AI agents use anim_add_track to create or update resources in Breakpoint, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Breakpoint environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
name | string | Yes | Animation name |
path | string | Yes | Track target: a node path, or "Node:property" for value tracks (e.g. "Sprite2D:position") |
type | string | — | Track type: value (default), position_3d, rotation_3d, scale_3d, blend_shape, method, bezier, audio, animation |
library | string | — | Animation library name (default "") |
player_path | string | Yes | AnimationPlayer node path |
Parameters from the server's own tool schema.
Why anim_add_track is rated Medium
This tool creates or modifies animation data by adding a new track to an existing Animation resource. While it performs a state-changing operation in the Godot editor, it is reversible (undo-able) and does not execute arbitrary code, delete data, or move money. It fits the Write category: creates or modifies data reversibly.
From the tool's definition Tool description explicitly states 'Add a track to an Animation and set its target path', which creates new data in the animation system. The mention of '(undoable)' confirms this is a reversible modification, not destructive.
Risk signalsAccepts file system path (path)
Attacks that exploit this kind of access
The rule that runs anim_add_track safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Breakpoint, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For anim_add_track, this is the rule to start with:
anim_add_track stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Breakpoint, apply this rule, and every anim_add_track call is checked against it from then on.
Questions about anim_add_track
Add a track to an Animation and set its target path (undoable). Returns the new track index. It is categorised as a Write tool in the Breakpoint MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
anim_add_track accepts 5 parameters: name, path, type, library, player_path. Required: name, path, player_path. The full parameter table on this page comes from the server's own tool schema.
Register the Breakpoint MCP server in PolicyLayer and add a rule for anim_add_track: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Breakpoint. Nothing to install.
anim_add_track is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the anim_add_track rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for anim_add_track. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
anim_add_track is provided by the Breakpoint MCP server (breakpoint-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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