Who writes it
How much of rails did AI write?
0.2%
AI signed 0.2% of the 73,707 commits of rails. Signed by Claude (149), Cursor (3), Amp (1), Codex (1), GitHub Copilot (1), and Gemini (1).
Since its first commit, on November 24, 2004. Read on October 28, 2026, at commit 793d744. Read it as markdown
Who signed the commits
- Claude149 commits · 0.2%Its last one: 5171e07
- Cursor3 commits · 0%
- Amp1 commit · 0%
- Codex1 commit · 0%
- GitHub Copilot1 commit · 0%
- +1 more
rails/rails73,707 commits
People73,560 commits · 99.8%
Commits per month
Each month's commits up to its last one, with those an AI signed. Merges don't count.
- Signed by AI
- People
The figures, month by month
| Month | Commits | Signed by AI | Share |
|---|---|---|---|
| Oct 2026 | 388 | 96 | 24.7% |
| Sep 2026 | 189 | 20 | 10.6% |
| Aug 2026 | 250 | 13 | 5.2% |
| Jul 2026 | 286 | 8 | 2.8% |
| Jun 2026 | 335 | 5 | 1.5% |
| May 2026 | 265 | 8 | 3% |
| Apr 2026 | 50 | 2 | 4% |
| Mar 2026 | 96 | 1 | 1% |
| Feb 2026 | 102 | 1 | 1% |
| Jan 2026 | 118 | 0 | 0% |
| Dec 2025 | 161 | 0 | 0% |
| Nov 2025 | 119 | 1 | 0.8% |
| Oct 2025 | 201 | 0 | 0% |
| Sep 2025 | 198 | 0 | 0% |
| Aug 2025 | 151 | 0 | 0% |
| Jul 2025 | 113 | 0 | 0% |
| Jun 2025 | 57 | 0 | 0% |
| May 2025 | 62 | 0 | 0% |
| Apr 2025 | 72 | 0 | 0% |
| Mar 2025 | 101 | 0 | 0% |
| Feb 2025 | 156 | 0 | 0% |
| Jan 2025 | 180 | 0 | 0% |
| Dec 2024 | 214 | 0 | 0% |
| Nov 2024 | 152 | 0 | 0% |
The last commits an AI signed
- 5171e07Serialize perform_work with a connection's commandsClaude· Oct 27, 2026
- c82ad5fDon't render authenticity tokens under the header_only CSRF strategyClaude· Oct 27, 2026
- 2f6d23fRound a BigDecimal whose scale overflows, and keep tolerating a falsy scaleClaude· Oct 27, 2026
- 65e5cc7Assert the scale boundary returns the BigDecimal as isClaude· Oct 27, 2026
- 2d36413Skip copying and rounding a BigDecimal already at the decimal type's scaleClaude· Oct 27, 2026
- 4281719Test a TimeWithZone whose UTC time was moved to another offsetClaude· Oct 27, 2026
- 054035dLoad MessagePack TimeWithZone from a UTC TimeClaude· Oct 27, 2026
- d0a6b57Process each Action Cable connection's commands in orderClaude· Oct 25, 2026
- d12aa07Use Symbol#name for attribute names in Active Record attribute APIsClaude· Oct 25, 2026
- 0630c68Check the serializer format with Symbol#start_with? instead of to_sClaude· Oct 25, 2026
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 →Frequently asked questions
- Which AI tool signed the most commits in rails?
- Claude, with 149 of the 73,707 commits of rails.
- The proof: its last signed commit, 5171e07
- Since when does AI sign commits in rails?
- Since November 2025: the first month an AI tool signed a commit of rails.
- How many commits does rails have?
- rails has 73,707 commits since November 24, 2004. Merges don’t count.
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