This record as markdown: /tools/yanhuifair-godot-mcp/read-joint.md
What read_joint does on Godot
AI agents call read_joint to retrieve information from Godot without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
joint_name | object | — | Specific joint node name (defaults to all joints) |
scene_path | string | Yes | Path to .tscn scene file |
Parameters from the server's own tool schema.
Why read_joint is rated Low
Retrieves physics joint configuration data without modifying or executing operations.
From the tool's definition Read a physics joint config in a scene.
Attacks that exploit this kind of access
The rule that runs read_joint 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 read_joint, this is the rule to start with:
read_joint is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Godot, apply this rule, and every read_joint call is checked against it from then on.
Questions about read_joint
Read a physics joint config in a scene. It is categorised as a Read tool in the Godot MCP Server, which means it retrieves data without modifying state.
read_joint accepts 2 parameters: joint_name, scene_path. Required: scene_path. The full parameter table on this page comes from the server's own tool schema.
Register the Godot MCP server in PolicyLayer and add a rule for read_joint: 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.
read_joint is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the read_joint 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.
Set action: deny in the PolicyLayer policy for read_joint. 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.
read_joint 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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