read_grid_map

List GridMap nodes with cell size and mesh library references.

SERVERGodot SOURCE@yanhuifair/godot-mcp

Low RISK CLASS

Category Read

Parameters 10 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/yanhuifair-godot-mcp/read-grid-map.md

WHAT IT DOES

What read_grid_map does on Godot

AI agents call read_grid_map 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
`scene_path`	object	—

Parameters from the server's own tool schema.

RISK

Why read_grid_map is rated Low

This tool retrieves information about GridMap nodes and their properties (cell size, mesh library references) without modifying, executing, or deleting anything. It is a pure data query with no blast radius if misused by an AI agent.

From the tool's definition Tool name is 'read_grid_map' and description states 'List GridMap nodes' — a retrieval/query operation with no side effects. The verb 'read' and 'list' are canonical Read operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs read_grid_map 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_grid_map, this is the rule to start with:

read_grid_map Allowed

read_grid_map is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "read_grid_map": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about read_grid_map

What does the read_grid_map tool do? +

List GridMap nodes with cell size and mesh library references. It is categorised as a Read tool in the Godot MCP Server, which means it retrieves data without modifying state.

What parameters does read_grid_map accept? +

read_grid_map accepts 1 parameter: scene_path. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on read_grid_map? +

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

read_grid_map is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit read_grid_map? +

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

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

read_grid_map 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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