Critical Risk →

unity_animation_remove_state

Remove a state from an Animator Controller layer.

How to control unity_animation_remove_state ↓

AI agents call unity_animation_remove_state 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

Removing a state from an Animator Controller is an irreversible destructive action. It permanently deletes the state and its associated transitions/configurations from the animation controller asset, which cannot be undone without manual recreation or source control recovery.

From the tool's definition Remove a state from an Animator Controller layer

Documented attack patterns abuse exactly the kind of access unity_animation_remove_state 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_state:

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

unity_animation_remove_state 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_state tool do? +

Remove a state from an Animator Controller layer. 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_state? +

Register the Unity MCP Server MCP server in PolicyLayer and add a rule for unity_animation_remove_state: 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_state? +

unity_animation_remove_state 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_state? +

Yes. Add a rate_limit block to the unity_animation_remove_state 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_state completely? +

Set action: deny in the PolicyLayer policy for unity_animation_remove_state. 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_state? +

unity_animation_remove_state 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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