record_pattern · Maestro MCP: Risk & Policy

WHAT IT DOES

What record_pattern does on Maestro

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

WHY IT NEEDS A POLICY

Why record_pattern needs a policy

The tool writes/stores a pattern to some persistent store. This is a reversible write operation with medium severity as it modifies the system's pattern registry, potentially influencing AI-assisted development behavior. Description is brief and in Portuguese, slightly lowering confidence.

From the tool's definition 'Registra padrão identificado' (Registers identified pattern) — implies creating/storing a pattern record

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

record_pattern Rate-limited

record_pattern 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": {
    "record_pattern": {
      "limits": [
        {
          "counter": "record_pattern_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 Maestro, so you can run agents against it safely.

FAQ

Questions about record_pattern

What does the record_pattern tool do? +

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

How do I enforce a policy on record_pattern? +

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

What risk level is record_pattern? +

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

Can I rate-limit record_pattern? +

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

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

record_pattern is provided by the Maestro MCP server (matheus-gama-deluna/maestro). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.