firepass_trio · Firepass MCP: Risk & Policy

WHAT IT DOES

What firepass_trio does on Firepass

AI agents invoke firepass_trio to trigger actions in Firepass. 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 firepass_trio needs a policy

The server explicitly supports shell commands and file operations, and sibling tools suggest an agentic pattern. 'Trio' likely orchestrates or combines multiple of these capabilities. With empty description, confidence is reduced, but the server context implies Execute-level risk at minimum. Assigning Execute/high as the most probable classification given the agentic shell-command context.

From the tool's definition Tool name 'firepass_trio' on a server described as providing 'file operations, shell commands, and code search'; sibling tools include 'worker', 'researcher', 'reviewer' suggesting agentic execution capabilities. Tool description is empty.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

firepass_trio Rate-limited

firepass_trio 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": {
    "firepass_trio": {
      "limits": [
        {
          "counter": "firepass_trio_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 Firepass, so you can run agents against it safely.

FAQ

Questions about firepass_trio

What does the firepass_trio tool do? +

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

How do I enforce a policy on firepass_trio? +

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

What risk level is firepass_trio? +

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

Can I rate-limit firepass_trio? +

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

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

firepass_trio is provided by the Firepass MCP server (jameshgrn/firepass-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.