facebook.
518 merged pull requests across 6 repositories over the 90 days to September 28, 2026.
17.5%
of merged pull requests disclosed agent work.
- Claude Code
- Cursor
- GitHub Copilot
- Codex
- Devin
- other agents
- inferred
- people
small sample · fewer than 500 pull requests by people or agents, so this share moves a lot with a handful of PRs
423
PRs by people or agents
74
with a declared agent
0
by inferred agents
1
agents at work
agents
declared · inferred PRs- Claude Code74·
repositories
declared share · bus factor- lexical18.2%274 PRs3 people cover half
- docusaurus20.9%110 PRs1 person covers half
- infer3.3%30 PRs2 people cover half
- zstd0.0%8 PRs1 person covers half
- rocksdb0.0%1 PRs1 person covers half
- hhvm0.0%0 PRs
bus factor · the fewest people who account for half a repo's merged work, with an agent's pull requests credited to the person who steered it
models named
where a trailer names one- Claude Opus 5.5 · 23
- Claude Fable 5 · 18
- Claude Opus 5 · 17
- Claude Opus 4.8 · 11
- Claude Fable 5.1 · 1
- Claude Opus · 1
- Claude Sonnet 5 · 1
This report reads public repositories. slashscore for Teams draws the same map for your private ones: the people, the agents working beside them, and the repos they share.