Source: https://seerepo.com/r/Homebrew/brew/ai
Markdown source: https://seerepo.com/r/Homebrew/brew/ai.md
Description: AI signed 0.6% of the 37,608 commits of brew. Each AI tool with its commits, and the last ones it signed.

# How much of brew did AI write?

AI signed 0.6% of the 37,608 commits of brew. Signed by GitHub Copilot (138), Claude (85), Codex (4), CodeRabbit (2), and Cursor (1).

Since its first commit, on May 20, 2009.

## Who signed the commits

- GitHub Copilot: 138 commits (0.4%)
- Claude: 85 commits (0.2%)
- Codex: 4 commits (0%)
- CodeRabbit: 2 commits (0%)
- Cursor: 1 commit (0%)
- People: 99.4%

## Commits per month

Each month's commits up to its last one, with those an AI signed. Merges don't count.

- 2024-12: 209 commits, 0 signed by AI (0%)
- 2025-01: 223 commits, 0 signed by AI (0%)
- 2025-02: 294 commits, 0 signed by AI (0%)
- 2025-03: 349 commits, 0 signed by AI (0%)
- 2025-04: 256 commits, 1 signed by AI (0.4%)
- 2025-05: 215 commits, 0 signed by AI (0%)
- 2025-06: 199 commits, 0 signed by AI (0%)
- 2025-07: 131 commits, 3 signed by AI (2.3%)
- 2025-08: 280 commits, 16 signed by AI (5.7%)
- 2025-09: 192 commits, 15 signed by AI (7.8%)
- 2025-10: 177 commits, 19 signed by AI (10.7%)
- 2025-11: 231 commits, 18 signed by AI (7.8%)
- 2025-12: 244 commits, 4 signed by AI (1.6%)
- 2026-01: 150 commits, 3 signed by AI (2%)
- 2026-02: 175 commits, 16 signed by AI (9.1%)
- 2026-03: 292 commits, 22 signed by AI (7.5%)
- 2026-04: 301 commits, 15 signed by AI (5%)
- 2026-05: 383 commits, 7 signed by AI (1.8%)
- 2026-06: 405 commits, 29 signed by AI (7.2%)
- 2026-07: 571 commits, 46 signed by AI (8.1%)
- 2026-08: 349 commits, 5 signed by AI (1.4%)
- 2026-09: 451 commits, 7 signed by AI (1.6%)
- 2026-10: 270 commits, 2 signed by AI (0.7%)
- 2026-11: 98 commits, 2 signed by AI (2%)

## The last commits an AI signed

- 2026-11-04 · CodeRabbit · [0da0859](https://github.com/Homebrew/brew/commit/0da08598303436105e32959859bc5959edd111ff): Update docs/Language-Specific-Formulae.md
- 2026-11-03 · CodeRabbit · [ee38ce4](https://github.com/Homebrew/brew/commit/ee38ce4dc01d5cc70f6a0e9928e9ca60b7e0e66b): utils/pypi: avoid updating when stable version doesn't match
- 2026-10-22 · Codex · [783b9e5](https://github.com/Homebrew/brew/commit/783b9e5eef19bff38953cac3a1d936dca3e90773): dmg: skip legacy desktop metadata
- 2026-10-04 · GitHub Copilot · [ccdf5e5](https://github.com/Homebrew/brew/commit/ccdf5e593b0dbb7fd02116f9dae65e20f05a2834): formula: check cached filename extension rather than url
- 2026-09-28 · Cursor · [867ebd8](https://github.com/Homebrew/brew/commit/867ebd86494865a96938b7b3b02ee30a5e1d164a): keg: keep versioned opt aliases that still point at an installed keg
- 2026-09-21 · GitHub Copilot · [7d714cd](https://github.com/Homebrew/brew/commit/7d714cd81ae8d5d88a5a0f29b4c28bc2738cbc98): os/mac/pkgconf: fix null version handling.
- 2026-09-17 · Claude · [beb9bf2](https://github.com/Homebrew/brew/commit/beb9bf27fe5a39c9679681f877a7631de7050e43): github_git_download_strategy: fetch when GitHub API is unavailable
- 2026-09-06 · GitHub Copilot · [590816c](https://github.com/Homebrew/brew/commit/590816c8e056b94513ffebaddaa47ae8ab843fa2): Apply batched suggestions from code review
- 2026-09-05 · GitHub Copilot · [b41be79](https://github.com/Homebrew/brew/commit/b41be7915c9aff2a102857d56c80dd04c9b11d29): Refactor std_shards_args to inline debug flag logic
- 2026-09-04 · GitHub Copilot · [c9907af](https://github.com/Homebrew/brew/commit/c9907afe9956bbb4f7943abc105eb850596ba38f): Fix documentation style

## How we know

Every AI coding tool leaves its signature in the commits it makes: a Co-Authored-By line, its own author name, or the merge of its branch. SeeRepo reads those signatures in the repo's history; a commit without one counts as made by people, and merges don't count.

Every AI tool SeeRepo recognizes: https://seerepo.com/agents

## Frequently asked questions

### Which AI tool signed the most commits in brew?

GitHub Copilot, with 138 of the 37,608 commits of brew.

The proof: [its last signed commit, ccdf5e5](https://github.com/Homebrew/brew/commit/ccdf5e593b0dbb7fd02116f9dae65e20f05a2834)

### Since when does AI sign commits in brew?

Since April 2025: the first month an AI tool signed a commit of brew.

### How many commits does brew have?

brew has 37,608 commits since May 20, 2009. Merges don’t count.

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.