set_tree_parameter

Set a parameter on an AnimationTree (e.g. blend amount, state)

SERVERGodot SOURCE@keeveeg/godot-mcp

Medium RISK CLASS

Category Write

Parameters 32 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/keeveeg-godot-mcp/set-tree-parameter.md

WHAT IT DOES

What set_tree_parameter does on Godot

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

Parameter	Type	Required	Description
`path`	string	Yes	AnimationTree node path
`value`	object	—	Parameter value
`parameter`	string	Yes	Parameter path (e.g. 'parameters/blend_position')

Parameters from the server's own tool schema.

RISK

Why set_tree_parameter is rated Medium

This tool modifies AnimationTree parameters, which is a write operation that changes application state. While it affects gameplay/animation behavior, the change is reversible (parameters can be adjusted back or reset), and it does not execute arbitrary code, delete data, or cause financial impact.

From the tool's definition The tool "set_tree_parameter" performs parameter modification on an AnimationTree node, changing properties like "blend amount" and "state". This is a reversible data modification operation within a game engine context.

Risk signalsAccepts file system path (path)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_tree_parameter safely

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

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.

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

FAQ

Questions about set_tree_parameter

What does the set_tree_parameter tool do? +

Set a parameter on an AnimationTree (e.g. blend amount, state). It is categorised as a Write tool in the Godot MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does set_tree_parameter accept? +

set_tree_parameter accepts 3 parameters: path, value, parameter. Required: path, parameter. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on set_tree_parameter? +

Register the Godot 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. 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 (@keeveeg/godot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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