Shippie

Shippie is an open source, extendable AI code review agent. It runs as a GitHub Action on every pull request, or locally on staged changes, and posts focused inline review comments along with a summary, much as a human reviewer would. It is built on the flue agent framework and runs a real agent loop with developer tools, so it can follow references and read the wider codebase rather than only the diff. It looks for bugs, exposed secrets, slow code, unhandled edge cases and missing tests. Shippie also acts as a Model Context Protocol client, so teams can connect external tools such as browser automation for testing web apps, observability servers and documentation servers, or bring their own. Supported model providers include Anthropic, OpenAI, OpenRouter and Cloudflare. Setup takes one command, npx shippie init, which scaffolds the GitHub Action. The user then adds a provider key as a repository secret. Running npx shippie review checks staged changes without CI. The project is aimed at indie developers, small teams and people who ship quickly with AI generated code and want a safety check before merging. The tool is open source and the source is published on GitHub under the name mattzcarey/shippie. The vendor publishes no paid plans, and the user supplies their own model provider key, so model usage is billed by that provider.