set_joint_param

Set joint parameter.

SERVERGodot SOURCE@yanhuifair/godot-mcp

Medium RISK CLASS

Category Write

Parameters 44 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/yanhuifair-godot-mcp/set-joint-param.md

WHAT IT DOES

What set_joint_param does on Godot

AI agents use set_joint_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.

Parameter	Type	Required	Description
`param`	string	Yes	Parameter name (e.g. "bias", "angular_limit/lower", "motor/enable")
`value`	string	Yes	New value
`joint_name`	string	Yes	Joint node name
`scene_path`	string	Yes	Path to .tscn scene file

Parameters from the server's own tool schema.

RISK

Why set_joint_param is rated Medium

This tool modifies joint physics parameters in Godot, which is a reversible Write operation. It affects game object physics configuration but does not execute arbitrary commands, delete data, or move financial resources. Severity is medium because misconfiguration could affect game physics behavior, but changes can be undone by setting parameters to different values.

From the tool's definition Tool name 'set_joint_param' indicates modification of joint parameters in Godot Engine. The description 'Set joint parameter' confirms it modifies configuration rather than deletes or executes arbitrary code.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_joint_param 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_joint_param, this is the rule to start with:

set_joint_param Rate-limited

set_joint_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_joint_param": {
      "limits": [
        {
          "counter": "set_joint_param_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_joint_param call is checked against it from then on.

FAQ

Questions about set_joint_param

What does the set_joint_param tool do? +

Set joint 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_joint_param accept? +

set_joint_param accepts 4 parameters: param, value, joint_name, scene_path. Required: param, value, joint_name, scene_path. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on set_joint_param? +

Register the Godot MCP server in PolicyLayer and add a rule for set_joint_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_joint_param? +

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

Can I rate-limit set_joint_param? +

Yes. Add a rate_limit block to the set_joint_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_joint_param completely? +

Set action: deny in the PolicyLayer policy for set_joint_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_joint_param? +

set_joint_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.

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