Critical Risk →

unity_animation_remove_keyframe

Remove a keyframe from an animation curve by its index. Use get_curve_keyframes first to find the index.

How to control unity_animation_remove_keyframe ↓

AI agents call unity_animation_remove_keyframe to permanently remove resources in Unity MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Critical Risk

This tool irreversibly removes a keyframe from an animation curve. Deletion of animation data is a destructive operation that cannot be undone without version control or manual re-creation. The severity is medium as it affects a specific keyframe within an animation asset rather than entire projects or scenes.

From the tool's definition Remove a keyframe from an animation curve by its index

Documented attack patterns abuse exactly the kind of access unity_animation_remove_keyframe gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and Unity MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for unity_animation_remove_keyframe:

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "unity_animation_remove_keyframe"
  ]
}

unity_animation_remove_keyframe disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

  1. Create a free account and register Unity MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Go deeper

What does the unity_animation_remove_keyframe tool do? +

Remove a keyframe from an animation curve by its index. Use get_curve_keyframes first to find the index. It is categorised as a Destructive tool in the Unity MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on unity_animation_remove_keyframe? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_animation_remove_keyframe: 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 Unity MCP Server. Nothing to install.

What risk level is unity_animation_remove_keyframe? +

unity_animation_remove_keyframe is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit unity_animation_remove_keyframe? +

Yes. Add a rate_limit block to the unity_animation_remove_keyframe 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.

How do I block unity_animation_remove_keyframe completely? +

Set action: deny in the PolicyLayer policy for unity_animation_remove_keyframe. 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.

What MCP server provides unity_animation_remove_keyframe? +

unity_animation_remove_keyframe is provided by the Unity MCP Server MCP server (anklebreaker-studio/unity-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Unity MCP Server tool call.

Deterministic rules across all 324 Unity MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

324 Unity MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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