github_review_pr

Submit a review on a PR.

SERVERGithub SOURCEdkeeno/github-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dkeeno-github-mcp-server/github-review-pr.md

WHAT IT DOES

What github_review_pr does on Github

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

RISK

Why github_review_pr is rated Medium

Submitting a PR review is a write operation that creates new data (review records) on GitHub. It modifies the PR's state and history reversibly—reviews can be dismissed or edited. It does not execute code, delete data, or move money. While it affects workflow (may block/unblock merging), the action itself is fundamentally about creating/recording a review, making it Write rather than Execute.

From the tool's definition 'Submit a review on a PR' - this action creates a new review record on an existing pull request, which modifies state on GitHub by adding a review comment/approval/rejection.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs github_review_pr safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Github, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For github_review_pr, this is the rule to start with:

github_review_pr Rate-limited

github_review_pr 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_pr": {
      "limits": [
        {
          "counter": "github_review_pr_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Github, apply this rule, and every github_review_pr call is checked against it from then on.

FAQ

Questions about github_review_pr

What does the github_review_pr tool do? +

Submit a review on a PR. It is categorised as a Write tool in the Github 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_pr? +

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

What risk level is github_review_pr? +

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

Can I rate-limit github_review_pr? +

Yes. Add a rate_limit block to the github_review_pr 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_pr completely? +

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

github_review_pr is provided by the Github MCP server (dkeeno/github-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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