set_tree_parameter · Godot MCP Server MCP: Risk & Policy

WHAT IT DOES

What set_tree_parameter does on Godot MCP Server

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

WHY IT NEEDS A POLICY

Why set_tree_parameter needs a policy

This tool modifies animation state and behavior parameters reversibly within the Godot game tree. It does not delete data (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or merely retrieve information (Read). The modification is within the animation system context and can be undone or adjusted.

From the tool's definition Tool name 'set_tree_parameter' and description 'Set a parameter on an AnimationTree' indicate modification of animation parameters (e.g., blend position, condition) on an existing game object.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_tree_parameter Rate-limited

set_tree_parameter 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": {
    "set_tree_parameter": {
      "limits": [
        {
          "counter": "set_tree_parameter_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Godot MCP Server, so you can run agents against it safely.

FAQ

Questions about set_tree_parameter

What does the set_tree_parameter tool do? +

Set a parameter on an AnimationTree (e.g. blend position, condition). It is categorised as a Write tool in the Godot 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 set_tree_parameter? +

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

What risk level is set_tree_parameter? +

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

Can I rate-limit set_tree_parameter? +

Yes. Add a rate_limit block to the set_tree_parameter 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 set_tree_parameter completely? +

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

set_tree_parameter is provided by the Godot MCP Server MCP server (neondeex/godotmcp-pro-free-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.