create_pr_summary · Git PR MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_pr_summary does on Git PR MCP Server

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

WHY IT NEEDS A POLICY

Why create_pr_summary needs a policy

This tool generates and creates a PR summary (textual output/metadata), which constitutes data creation. However, the blast radius is minimal because: (1) summaries are descriptive metadata with no side effects on the repository state, (2) they are easily reversible or replaceable, and (3) misuse would result in poor or misleading documentation rather than code or data loss.

From the tool's definition The tool 'create_pr_summary' reads a git diff and generates a summary document. It does not modify the repository, create branches, commit code, or push changes—it only creates text content (a summary) based on existing data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_pr_summary Rate-limited

create_pr_summary 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": {
    "create_pr_summary": {
      "limits": [
        {
          "counter": "create_pr_summary_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 Git PR MCP Server, so you can run agents against it safely.

FAQ

Questions about create_pr_summary

What does the create_pr_summary tool do? +

Create a summary for a pull request based on git diff. It is categorised as a Write tool in the Git PR MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_pr_summary? +

Register the Git PR MCP Server MCP server in PolicyLayer and add a rule for create_pr_summary: 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 Git PR MCP Server. Nothing to install.

What risk level is create_pr_summary? +

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

Can I rate-limit create_pr_summary? +

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

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

create_pr_summary is provided by the Git PR MCP Server MCP server (peterj/git-pr-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.