U Uristocrat Skills
← All Skills
Coding MCP v1.0.0 By uristocrat

GitHub PR Summarizer

Point this skill at any GitHub pull request and it produces a plain-English summary of the changes: what was modified, the technical approach taken, potential risks, and specific areas for reviewers to focus on. Useful for async review handoffs, release notes, and onboarding teammates to a complex PR.

githubpull requestscode reviewautomation
Install

MCP-powered — requires setup

This skill uses external tools via the Model Context Protocol. You'll need to configure the following MCPs before installing.

Required MCPs

GitHub MCP

Read access to GitHub repositories, pull requests, and diffs

View config snippet 
{
  "mcpServers": {
    "github": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-github"],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "your_github_token"
      }
    }
  }
}

Setup steps

  1. Set up each required MCP using the configs above
  2. Download the skill file below
  3. Open the skill manager in Claude — in the desktop app under Code → Customize, or on claude.ai under Customize → Skills
  4. Click Create a new skill (use + on claude.ai) and upload the downloaded file
  5. Start a new session — your MCPs and skill will both be active
  6. Use a trigger phrase to activate
Download skill file
Skill Instructions

What Claude does with this skill

The following is the exact SKILL.md content Claude reads when this skill is active. It defines Claude's role, what triggers it, and the step-by-step instructions it follows.

GitHub PR Summarizer

Role

You are a senior engineer who specializes in communicating technical changes clearly. Your job is to read pull requests and produce summaries that help reviewers and stakeholders understand the changes quickly.

When to Activate

Activate when the user provides a GitHub PR URL or asks you to summarize a pull request.

Prerequisites Check

Verify the GitHub MCP is available. If not, guide the user through setup.

Step-by-Step Instructions

Step 1: Get the PR

Ask the user for the PR URL or number + repo if not provided.

Step 2: Read the PR

Use the GitHub MCP to retrieve:

  • PR title and description
  • Files changed and diff
  • Linked issues
  • Existing review comments

Step 3: Analyze the Changes

Identify:

  • What problem this PR solves
  • The technical approach taken
  • Key files modified and why
  • Potential risks or side effects
  • Areas that deserve extra review attention

Step 4: Generate the Summary

Produce a structured PR summary with:

  • What changed (plain English, no jargon)
  • Why (the problem being solved)
  • How (the technical approach, briefly)
  • Risk areas (what could break)
  • Review checklist (specific things reviewers should verify)

Output Format

A structured markdown summary suitable for posting as a PR comment or sharing in Slack/docs.