Business Problem
Engineering teams spend significant time on code reviews, often catching the same types of issues repeatedly. Junior developers wait hours or days for review feedback, slowing development velocity.
Solution Overview
An agentic pipeline that automatically reviews new pull requests, analyzes code changes against team standards, identifies potential bugs and security issues, and posts contextual review comments directly on the PR.
Implementation Steps
Set Up GitHub Webhook
Configure a webhook to trigger on pull request events (opened, synchronized).
Connect GitHub MCP Server
Initialize the GitHub MCP server to read PR diffs and file contents.
const github = new GitHubServer({ token: process.env.GITHUB_TOKEN });Analyze Code Changes
Use Claude to analyze the diff, checking for bugs, style issues, and security concerns.
Post Review Comments
Use the GitHub MCP server to post inline review comments on specific lines.
Track Review Metrics
Log review outcomes to measure impact on code quality over time.
Code Examples
async function reviewPullRequest(prNumber, repo) {
const diff = await github.tool("get_pull_request_diff", { repo, pr: prNumber });
const review = await claude.analyze(diff, {
prompt: "Review this code change for bugs, security issues, and style."
});
await github.tool("create_review", {
repo, pr: prNumber, comments: review.comments
});
}