GitHub PR Reviewer — Agentic AI

The Problem

Code review is time-intensive and inconsistent under high PR volume — reviewers miss patterns, leave vague comments, and can't apply equal depth across every diff.

Approach

1. 01Designed the prompt orchestration pipeline — structuring the review into discrete analysis phases: diff parsing, issue classification, and comment generation.
2. 02Implemented tool-calling pipelines using LangChain and Mastra AI to fetch PR diffs, parse context, and trigger structured review output.
3. 03Built the end-to-end GitHub API integration — PR URL ingestion, diff retrieval, and inline comment posting.

Impact

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Produces structured, inline code review comments automatically from a PR URL — reducing manual review time and standardising feedback quality across the team.