stop_project

THE RISK

High Risk

Why stop_project needs a policy

This tool executes a command to halt an active process, which is an operational control action (similar to kill, terminate, or shutdown commands). While not destructive (no data is deleted), it is not merely reading or writing data—it actively triggers external operations whose effects depend on system state.

From the tool's definition Tool description states 'Stop the currently running Godot project' — this is an action that terminates a process and affects the state of the running application.

Documented attack patterns abuse exactly the kind of access stop_project gives an agent:

POLICY

How to control stop_project

PolicyLayer is an MCP gateway — it sits between your AI agents and Godot MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for stop_project:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "stop_project": {
      "limits": [
        {
          "counter": "stop_project_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

stop_project stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Godot MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Godot MCP tools

Execute launch_editor Launch Godot editor for a specific project Execute run_project Run the Godot project and capture output Execute connect_remote_debugger Connect to Godot editor\ Execute disconnect_remote_debugger Disconnect from the Godot editor\ Write load_sprite Load a sprite into a Sprite2D node Write add_node Add a node to an existing scene Write create_scene Create a new Godot scene file Write export_mesh_library Export a scene as a MeshLibrary resource

All 18 Godot MCP tools →

Execute tools on other servers

Android Forensics ADB MCP Server adb_shell_command EMBA-MCP run_emba_scan Frida Game Hacking MCP remove_breakpoint Procmon request_elevation

Go deeper

High-risk tools in Godot MCP → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about stop_project

What does the stop_project tool do? +

Stop the currently running Godot project. It is categorised as a Execute tool in the Godot MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on stop_project? +

Register the Godot MCP server in PolicyLayer and add a rule for stop_project: 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 MCP. Nothing to install.

What risk level is stop_project? +

stop_project is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit stop_project? +

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

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

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

Enforce policy on every Godot MCP tool call.

Start from Godot MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →