github_review_open_pull_request · Promethean OS MCP

WHAT IT DOES

What github_review_open_pull_request does on Promethean OS MCP

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

WHY IT NEEDS A POLICY

Why github_review_open_pull_request needs a policy

Opening a pull request creates new data in a version control system that can affect collaboration workflows. While reversible (unlike deletion), it can have downstream effects on CI/CD pipelines and team processes if misused by an AI agent. It is not destructive because pull requests can be closed, and not Execute because it doesn't run code—it creates a request for code review.

From the tool's definition Tool description states 'Open a new pull request' which creates a new entity (pull request) on GitHub. This is a reversible write operation—pull requests can be closed, reopened, or modified.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

github_review_open_pull_request Rate-limited

github_review_open_pull_request 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": {
    "github_review_open_pull_request": {
      "limits": [
        {
          "counter": "github_review_open_pull_request_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 Promethean OS MCP, so you can run agents against it safely.

FAQ

Questions about github_review_open_pull_request

What does the github_review_open_pull_request tool do? +

Open a new pull request targeting a base branch with the provided title and body. It is categorised as a Write tool in the Promethean OS 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 github_review_open_pull_request? +

Register the Promethean OS MCP server in PolicyLayer and add a rule for github_review_open_pull_request: 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 Promethean OS MCP. Nothing to install.

What risk level is github_review_open_pull_request? +

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

Can I rate-limit github_review_open_pull_request? +

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

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

github_review_open_pull_request is provided by the Promethean OS MCP server (octave-commons/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.