Graphite

Graphite is an AI code review platform designed to help engineering teams ship better code more quickly. It integrates directly with GitHub and provides a suite of tools built around the pull request workflow. The core idea is to use AI and workflow optimizations to remove bottlenecks in the review process, catching issues early and keeping developers moving forward without waiting for human feedback on every change.

It works by adding an AI reviewer to every pull request. This assistant can analyze code changes, suggest fixes for potential bugs, and explain complex diffs. A standout feature is 'stacked PRs,' which lets developers break a large feature into a sequence of smaller, dependent pull requests. This allows parts of the work to be reviewed and merged independently, preventing a single large PR from blocking progress. The platform also includes a chat interface directly in the PR view for asking questions about the code or resolving CI failures, and a smart merge queue that understands the dependencies between stacked changes to merge them in the correct order.

Teams that manage frequent code changes and want to reduce review latency will benefit most. Real-world use includes a team accelerating a major refactor by reviewing it in stages, or a fast-moving startup ensuring code quality doesn't drop as their pace increases. It turns the often-serial process of 'code, wait for review, fix, wait again' into a more parallel and efficient workflow.