- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
github/spec-kit ↗github/spec-kit AI coding statistics: 52.6%
Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.
02Drivers
What shapes this result
Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.
Assisted or autonomous
Assisted — a developer’s identity authored the commit and the agent added itself as co-author. Autonomous — a bot identity authored the commit without a human identity attached. Across the whole index, 96% of agent commits are assisted.
Agent share by month
| Month | Agent share | Considered commits |
|---|---|---|
| 2026-02 | 40.6% | 32 |
| 2026-03 | 41.1% | 129 |
| 2026-04 | 30.6% | 183 |
| 2026-05 | 17.9% | 140 |
| 2026-06 | 54.7% | 247 |
| 2026-07 | 72.5% | 378 |
| 2026-08 | 66.1% | 189 |
| 2026-09 | 53.8% | 93 |
Peak month: 72.5%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| GitHub Copilot | GitHub | 467 | 33.6% |
| Claude Code | Anthropic | 292 | 21% |
| Cursor Agent | Anysphere | 5 | 0.4% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
1d5106f5on GitHubAdd OpenUP Governance preset to community catalog (#4596)GitHub Copilotabe0d1deon GitHubAdd OpenUP Governed Lifecycle extension to community catalog (#4598)GitHub Copilot10270e16on GitHubUpdate adrkit extension to v0.1.4 (#4600)GitHub Copilot4c1db740on GitHubfix(integrations): dispatch bob commands via `bob run` (#4492)Claude Code42153451on GitHubfix(events): cap stdin in the generated dispatcher, not just the CLI commaClaude Codee4842a03on GitHubdocs(core): SPECIFY_FEATURE sets the feature label, not the feature directClaude Code39f2ac3con GitHubclarify: require real interrogatives, ban topic-label questions (#3745)Cursor Agent82c078bbon GitHubdocs: clarify that release tags keep the leading v prefix (#3463)Cursor Agent8e5643d4on GitHubfix(cursor-agent): enable headless CLI dispatch end-to-end (-p --trust --aCursor Agent
04Method
What entered the denominator
The result begins with commit history, removes merges and routine automation, and reports literal agent signatures as a lower bound.
Exclusion ledger
| Commits in window | 1,451 |
| Merge commits removed | −3 |
| CI / dependency bots removed | −57 |
| Considered | 1,391 |
Bots are excluded from the denominator entirely. Agent attribution requires a literal supported signature; no code-style inference is used.
05Provenance
Pinned to a source state
This observation names the repository state, release, and detector that produced it. Use these identifiers when reproducing or citing the result.
- Dataset release
- 2026-09-18-v3.0
- Scan date
- 2026-09-16
- Ruleset
- sha256:b2e8889c66f72c18a61839f0bf1a9f77b5481ba2def044dba33c797b2f2bdcae
- Canonical repository
- github/spec-kit
- Default branch
- main
- Resolved HEAD
- 1d5106f59e1b148ee23ab136638932dd790ff1b6 ↗
- Resolved
- 2026-09-16
- Measurement window
- February–September 15, 2026
06Peer context
Position among comparable repositories
The cohort uses the same release and measurement window, then narrows to the repository’s ecosystem and removes low-activity observations.
Midrank percentile; equal shares split the tied positions.
- Repository
- 52.6%
- Cohort median
- 6.3%
- Share rank
- 17 / 247
Percentile = (repositories below + half of 1 tied repository) ÷ 247.
Continue exploring
Related coding-agent evidence
Run the same detector locally.
Deterministic signature matching; no code-style inference. Squash merges can remove trailers, so this result remains a measured floor.
npx qmmit-cli github/spec-kit