Source: https://seerepo.com/r/vitest-dev/vitest/ai
Markdown source: https://seerepo.com/r/vitest-dev/vitest/ai.md
Description: AI signed 3.2% of the 6,421 commits of vitest. Each AI tool with its commits, and the last ones it signed.

# How much of vitest did AI write?

AI signed 3.2% of the 6,421 commits of vitest. Signed by Claude (118), Codex (79), GitHub Copilot (25), and Cursor (1).

Since its first commit, on December 3, 2021.

## Who signed the commits

- Claude: 118 commits (1.8%)
- Codex: 79 commits (1.2%)
- GitHub Copilot: 25 commits (0.4%)
- Cursor: 1 commit (0%)
- People: 96.8%

## Commits per month

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

- 2024-12: 82 commits, 0 signed by AI (0%)
- 2025-01: 93 commits, 0 signed by AI (0%)
- 2025-02: 77 commits, 0 signed by AI (0%)
- 2025-03: 86 commits, 0 signed by AI (0%)
- 2025-04: 53 commits, 0 signed by AI (0%)
- 2025-05: 86 commits, 0 signed by AI (0%)
- 2025-06: 94 commits, 0 signed by AI (0%)
- 2025-07: 63 commits, 0 signed by AI (0%)
- 2025-08: 72 commits, 1 signed by AI (1.4%)
- 2025-09: 63 commits, 1 signed by AI (1.6%)
- 2025-10: 125 commits, 1 signed by AI (0.8%)
- 2025-11: 124 commits, 0 signed by AI (0%)
- 2025-12: 76 commits, 5 signed by AI (6.6%)
- 2026-01: 113 commits, 15 signed by AI (13.3%)
- 2026-02: 106 commits, 10 signed by AI (9.4%)
- 2026-03: 113 commits, 19 signed by AI (16.8%)
- 2026-04: 90 commits, 22 signed by AI (24.4%)
- 2026-05: 106 commits, 30 signed by AI (28.3%)
- 2026-06: 72 commits, 14 signed by AI (19.4%)
- 2026-07: 82 commits, 3 signed by AI (3.7%)
- 2026-08: 128 commits, 4 signed by AI (3.1%)
- 2026-09: 94 commits, 24 signed by AI (25.5%)
- 2026-10: 187 commits, 48 signed by AI (25.7%)
- 2026-11: 44 commits, 10 signed by AI (22.7%)

## The last commits an AI signed

- 2026-11-06 · Claude · [77d91f6](https://github.com/vitest-dev/vitest/commit/77d91f6d5349262ffd4e6c67575703be1c0b204d): docs: add ci matrix table to test readme (#11899)
- 2026-11-06 · Claude · [50dcdb3](https://github.com/vitest-dev/vitest/commit/50dcdb373f43b093baa9d5e348be3407e4c5ac17): fix: reset local expect state between retries for `expect.assertions/hasAssertions` (#11900)
- 2026-11-04 · Claude · [1d46316](https://github.com/vitest-dev/vitest/commit/1d463163d6d7c4b508f769df8f3db520ae574553): refactor: resolve browser trace locations in test run (#11830)
- 2026-11-04 · Claude · [f6ef4b0](https://github.com/vitest-dev/vitest/commit/f6ef4b0eff41f39a05854bd1bac527797228250c): fix(experimental): skip ambiguous `expect.poll` trace steps in concurrent tests (#11869)
- 2026-11-04 · Claude · [1d115dc](https://github.com/vitest-dev/vitest/commit/1d115dcc32ac56ba3c5f80164781ed5e541a0cb8): fix(browser): fix expect.element with `message` and remove redundant `[ERROR]` in trace steps (#11832)
- 2026-11-02 · Claude · [e46c6c1](https://github.com/vitest-dev/vitest/commit/e46c6c1847462d62f9ff5ea4c351fe510a4edf2e): refactor: share trace types and utils (#11825)
- 2026-11-02 · Claude · [9e23ce5](https://github.com/vitest-dev/vitest/commit/9e23ce57cc112205126b7d37d68126860126b953): refactor(snapshot): unify review update with `SnapshotState` update (#11790)
- 2026-11-02 · Claude · [77511ae](https://github.com/vitest-dev/vitest/commit/77511ae2a83c8a739cbc20a2affad26ebc15bc01): docs(browser): update trace view demo screenshots (#11826)
- 2026-11-02 · Claude · [fd145d8](https://github.com/vitest-dev/vitest/commit/fd145d8d60fd877a2eb9622b6771edc08ef26372): feat(experimental): add message option to vi.waitFor and vi.waitUntil (#11754)
- 2026-11-02 · Claude · [4e98551](https://github.com/vitest-dev/vitest/commit/4e985515109b4fd9fcdc2e81d2b1c5f264799cf7): feat(experimental): add trace timeline for node (#11753)

## 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 vitest?

Claude, with 118 of the 6,421 commits of vitest.

The proof: [its last signed commit, 77d91f6](https://github.com/vitest-dev/vitest/commit/77d91f6d5349262ffd4e6c67575703be1c0b204d)

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

Since August 2025: the first month an AI tool signed a commit of vitest.

### How many commits does vitest have?

vitest has 6,421 commits since December 3, 2021. 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.