How much of presto did AI write?

No AI tool signed any of the 26,312 commits of presto.

Since its first commit, on August 8, 2012. Read on November 7, 2026, at commit c9613cc. Read it as markdown

Who signed the commits

presto26,312 commits

People26,312 commits

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
Nov 2026	14	0	0%
Oct 2026	104	3	2.9%
Sep 2026	82	1	1.2%
Aug 2026	108	3	2.8%
Jul 2026	80	1	1.3%
Jun 2026	115	1	0.9%
May 2026	149	0	0%
Apr 2026	112	1	0.9%
Mar 2026	123	0	0%
Feb 2026	92	0	0%
Jan 2026	96	0	0%
Dec 2025	72	0	0%
Nov 2025	116	0	0%
Oct 2025	185	0	0%
Sep 2025	160	0	0%
Aug 2025	156	0	0%
Jul 2025	116	0	0%
Jun 2025	145	0	0%
May 2025	110	0	0%
Apr 2025	120	0	0%
Mar 2025	142	0	0%
Feb 2025	129	0	0%
Jan 2025	101	0	0%
Dec 2024	93	0	0%

The last commits an AI signed

69b70b1fix: FlightShim fails to deserialze enum connector transaction handles (#28604)GitHub Copilot· Oct 16, 2026
96bc8d0fix(analyzer, plugin-iceberg): Read a time travel query with the schema recorded on its snapshot (#28503)Claude· Oct 7, 2026
00b0660docs: Expand ADBC driver client documentation (#28590)Claude· Oct 6, 2026
b613b61fix(plugin-elasticsearch): Upgrade elasticsearch-java to 9.5.3 (#28472)Claude· Sep 17, 2026
6a4f61bchore: Add @jja725 (Jianjian Xie) as module committer (#28401)Claude· Aug 27, 2026
7cbd1a1fix: Report native worker cache and query memory separately in /v1/status (#27783)GitHub Copilot· Aug 17, 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 →