One person is driving this. The headline number reflects a single contributor's workflow, not a project-wide shift.
Assisted or autonomous
Assisted — a developer’s identity authored the commit and the agent added itself as co-author. The agent ran git commit during a working session, with a person there. Autonomous — a bot identity is the author, no human in the loop. Across the whole index, 93.7% of agent commits are assisted.
Agent share by month
Peak month: 68.8%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 355 | 43.1% |
| Cursor Agent | Anysphere | 3 | 0.4% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
11b63c59Update README: exchange tables, Getting Started, and Strategies sectionClaude Code0c898cc0fix(backtesting): allow hyperliquid and hyperliquid_perpetual to be backteClaude Coded4f78fe9fix(lp): check limit prices while the position is still in rangeClaude Codee914807eAlso enforce Hyperliquid's 5 significant-figure price limit.Cursor Agent032830a4Fix Hyperliquid order price quantization to exchange tick size.Cursor Agent78321d39(feat) use Decibel user_fee_rates API for trading feesCursor Agent
What was excluded
| Commits in window | 1,175 |
| Merge commits removed | −352 |
| CI / dependency bots removed | −0 |
| Considered | 823 |
Bots are excluded from the denominator entirely. Counting dependabot as “AI-written code” is the fastest way to produce a meaningless number.
How this was measured
Measured over February–August 2026, cloned directly. Detection is deterministic string matching against signatures agents write about themselves — no heuristics, no style analysis. Merge commits and CI bots are excluded from the denominator. The figure is a floor: squash merges strip trailers, so real usage is higher. Contributor counts are aggregate — no individual is named.
Run it yourself: npx qmmit-cli hummingbot/hummingbot