set_environment_param · Godot MCP: Risk & Policy

WHAT IT DOES

What set_environment_param does on Godot

AI agents use set_environment_param 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.

PARAMETERS

Parameter	Type	Required	Description
`path`	string	Yes	Path to .tres Environment file
`param`	string	Yes	Parameter to set (e.g. "background_color", "fog_enabled", "ssao_enabled")
`value`	string	Yes	New value

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why set_environment_param needs a policy

This tool modifies environment configuration in Godot Engine, which is a reversible change (parameters can be updated again). It does not delete data (not Destructive), does not move money (not Financial), and does not execute arbitrary code or external operations (not Execute).

From the tool's definition Tool name 'set_environment_param' indicates modification of environment parameters; the verb 'set' denotes a write/update operation that creates or modifies data reversibly.

Risk signalsAccepts file system path (path)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_environment_param Rate-limited

set_environment_param 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_environment_param": {
      "limits": [
        {
          "counter": "set_environment_param_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, so you can run agents against it safely.

FAQ

Questions about set_environment_param

What does the set_environment_param tool do? +

Set environment parameter. 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_environment_param accept? +

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

How do I enforce a policy on set_environment_param? +

Register the Godot MCP server in PolicyLayer and add a rule for set_environment_param: 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_environment_param? +

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

Can I rate-limit set_environment_param? +

Yes. Add a rate_limit block to the set_environment_param 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_environment_param completely? +

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

set_environment_param is provided by the Godot MCP server (@yanhuifair/godot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.