unity_animation_add_transition

Add a transition between states in an Animator Controller. Supports conditions, exit time, and AnyState transitions.

SERVERUnity MCP Server SOURCEanklebreaker-studio/unity-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/anklebreaker-studio-unity-mcp-server/unity-animation-add-transition.md

WHAT IT DOES

What unity_animation_add_transition does on Unity MCP Server

AI agents use unity_animation_add_transition to create or update resources in Unity MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Unity MCP Server environment.

RISK

Why unity_animation_add_transition is rated Medium

This tool creates new transitions in animation controllers—a reversible modification to project data. It does not delete data (ruling out Destructive), execute arbitrary code (ruling out Execute), handle financial transactions (ruling out Financial), or merely read data (ruling out Read).

From the tool's definition Tool description explicitly states it 'Add[s] a transition between states' in an Animator Controller, which creates or modifies animation state machine logic within a Unity project.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs unity_animation_add_transition safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Unity MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For unity_animation_add_transition, this is the rule to start with:

unity_animation_add_transition Rate-limited

unity_animation_add_transition 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "unity_animation_add_transition": {
      "limits": [
        {
          "counter": "unity_animation_add_transition_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Unity MCP Server, apply this rule, and every unity_animation_add_transition call is checked against it from then on.

FAQ

Questions about unity_animation_add_transition

What does the unity_animation_add_transition tool do? +

Add a transition between states in an Animator Controller. Supports conditions, exit time, and AnyState transitions. It is categorised as a Write tool in the Unity MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unity_animation_add_transition? +

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

unity_animation_add_transition is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit unity_animation_add_transition? +

Yes. Add a rate_limit block to the unity_animation_add_transition 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_add_transition completely? +

Set action: deny in the PolicyLayer policy for unity_animation_add_transition. 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_add_transition? +

unity_animation_add_transition 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.

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