switch_canvas_version · GameDevBench MCP: Risk & Policy

WHAT IT DOES

What switch_canvas_version does on GameDevBench MCP

AI agents use switch_canvas_version to create or update resources in GameDevBench MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GameDevBench MCP environment.

WHY IT NEEDS A POLICY

Why switch_canvas_version needs a policy

An AI agent can call switch_canvas_version faster than any human can review — one bad instruction and it creates or modifies resources in GameDevBench MCP by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

switch_canvas_version Rate-limited

switch_canvas_version 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": {
    "switch_canvas_version": {
      "limits": [
        {
          "counter": "switch_canvas_version_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches GameDevBench MCP, so you can run agents against it safely.

FAQ

Questions about switch_canvas_version

What does the switch_canvas_version tool do? +

switch_canvas_version. It is categorised as a Write tool in the GameDevBench MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on switch_canvas_version? +

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

What risk level is switch_canvas_version? +

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

Can I rate-limit switch_canvas_version? +

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

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

switch_canvas_version is provided by the GameDevBench MCP server (seeleai/gamedevbench-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.