meat

Abridge a code diff into a reading diff.

Humans need to review agent-written code in critical systems. But models are good now. You don't need to review for style or nil-checks or imports. You need to review concepts, algorithm choices, architecture.

So meat uses a model to reduce a diff to the important parts. It shows you the meat.

Install with:

go install meat.dev/cmd/meat@latest

Run with meat to review the latest commit. It takes git-looking parameters to pick commits to review.

It takes a while to process a commit for reading. So I suggest you have an agent build meat into your devtools so that it pre-processes it.

Very large diffs are split at file and hunk boundaries and abridged chunk by chunk (up to a few MB), so one huge commit still produces a single merged reading diff — it just takes proportionally longer.

pi extension

This repo is one of those devtools. It is a pi package: the agent gets a meat tool, and you get a /meat command.

pi install npm:pi-meat

The tool takes a commit, a range, -staged, the working tree, or a diff from the agent's context, and returns the reading diff. /meat [target] (default HEAD) drops the reading diff into the session as context, so the agent works from the meat instead of the raw diff.

If meat is not on your PATH the extension builds it once from the Go source bundled in the package (needs Go installed) and caches the binary in ~/.cache/pi-meat. Set MEAT_BIN to use a specific binary.

Inside pi, meat uses the model currently selected in that session, including its resolved API key or OAuth credentials, custom headers, provider settings, and thinking level. The standalone CLI continues to use OPENAI_API_KEY / ANTHROPIC_API_KEY, MEAT_MODEL, and the matching base-URL variables.