run_templates · ComfyUI-APP- MCP: Risk & Policy

WHAT IT DOES

What run_templates does on ComfyUI-APP-MCP

AI agents invoke run_templates to trigger actions in ComfyUI-APP-MCP. 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 run_templates needs a policy

This tool triggers execution of ComfyUI workflows, which are external operations that generate multimedia content. While the description is empty, the name combined with the server's stated purpose and sibling context (run_template, ComfyUI invocation) clearly indicates code/workflow execution rather than simple data retrieval.

From the tool's definition Tool name is 'run_templates' (plural); sibling tools include 'run_template' which invokes ComfyUI workflows for multimedia generation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

run_templates Rate-limited

run_templates 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": {
    "run_templates": {
      "limits": [
        {
          "counter": "run_templates_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 ComfyUI-APP-MCP, so you can run agents against it safely.

FAQ

Questions about run_templates

What does the run_templates tool do? +

run_templates. It is categorised as a Execute tool in the ComfyUI-APP-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 run_templates? +

Register the ComfyUI-APP- MCP server in PolicyLayer and add a rule for run_templates: 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 ComfyUI-APP-MCP. Nothing to install.

What risk level is run_templates? +

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

Can I rate-limit run_templates? +

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

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

run_templates is provided by the ComfyUI-APP- MCP server (luo-lotus/comfyui-app-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.