Source: https://seerepo.com/r/rust-lang/mdBook/ai
Markdown source: https://seerepo.com/r/rust-lang/mdBook/ai.md
Description: AI signed 0.1% of the 2,281 commits of mdBook. Each AI tool with its commits, and the last ones it signed.

# How much of mdBook did AI write?

AI signed 0.1% of the 2,281 commits of mdBook. Signed by Codex (2).

Since its first commit, on July 6, 2015.

## Who signed the commits

- Codex: 2 commits (0.1%)
- People: 99.9%

## Commits per month

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

- 2024-11: 13 commits, 0 signed by AI (0%)
- 2024-12: 4 commits, 0 signed by AI (0%)
- 2025-01: 13 commits, 0 signed by AI (0%)
- 2025-02: 16 commits, 0 signed by AI (0%)
- 2025-03: 38 commits, 0 signed by AI (0%)
- 2025-04: 93 commits, 0 signed by AI (0%)
- 2025-05: 31 commits, 0 signed by AI (0%)
- 2025-06: 5 commits, 0 signed by AI (0%)
- 2025-07: 68 commits, 0 signed by AI (0%)
- 2025-08: 58 commits, 0 signed by AI (0%)
- 2025-09: 45 commits, 0 signed by AI (0%)
- 2025-10: 38 commits, 0 signed by AI (0%)
- 2025-11: 34 commits, 0 signed by AI (0%)
- 2025-12: 9 commits, 0 signed by AI (0%)
- 2026-01: 3 commits, 0 signed by AI (0%)
- 2026-02: 11 commits, 0 signed by AI (0%)
- 2026-03: 6 commits, 0 signed by AI (0%)
- 2026-04: 11 commits, 1 signed by AI (9.1%)
- 2026-05: 9 commits, 0 signed by AI (0%)
- 2026-06: 13 commits, 0 signed by AI (0%)
- 2026-07: 18 commits, 0 signed by AI (0%)
- 2026-08: 33 commits, 1 signed by AI (3%)
- 2026-09: 25 commits, 0 signed by AI (0%)
- 2026-10: 12 commits, 0 signed by AI (0%)

## The last commits an AI signed

- 2026-08-16 · Codex · [fdf3f1e](https://github.com/rust-lang/mdBook/commit/fdf3f1e85e2a9634e9408c7851025f0baa943ba6): ci: keep the existing macOS runners

## 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 mdBook?

Codex, with 2 of the 2,281 commits of mdBook.

The proof: [its last signed commit, fdf3f1e](https://github.com/rust-lang/mdBook/commit/fdf3f1e85e2a9634e9408c7851025f0baa943ba6)

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

Since April 2026: the first month an AI tool signed a commit of mdBook.

### How many commits does mdBook have?

mdBook has 2,281 commits since July 6, 2015. 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.