assert_screen_text · Godot MCP Server MCP: Risk & Policy

WHAT IT DOES

What assert_screen_text does on Godot MCP Server

AI agents invoke assert_screen_text to trigger actions in Godot MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why assert_screen_text needs a policy

This tool triggers an assertion check — an active verification operation within the Godot editor/runtime that waits up to a timeout period. It executes a polling/waiting action against the running game or editor state rather than simply reading data passively. It could cause test failures or block execution flows if misused, placing it in Execute.

From the tool's definition Assert that a given text string appears on the screen within a timeout

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

assert_screen_text Rate-limited

assert_screen_text 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.

View as policy code

policy.json

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

RATE-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 MCP Server, so you can run agents against it safely.

FAQ

Questions about assert_screen_text

What does the assert_screen_text tool do? +

Assert that a given text string appears on the screen within a timeout. It is categorised as a Execute tool in the Godot MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on assert_screen_text? +

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

What risk level is assert_screen_text? +

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

Can I rate-limit assert_screen_text? +

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

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

assert_screen_text is provided by the Godot MCP Server MCP server (neondeex/godotmcp-pro-free-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.