Pulse
2026-09-18-v3.0
Dataset
2026-09-18-v3.0
Ruleset
b2e8889c66f7
Scanned
2026-09-16
Window
February–September 15, 2026
Local to this browser

01Result

Fission-AI/OpenSpec ↗

Fission-AI/OpenSpec AI coding statistics: 44.9%

of 296 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
44.9% agent · top contributor 71.4%31 contributors
team

A small group is using agents. Adoption has spread beyond one person but is not project-wide.

133
agent commits
163
other considered commits
31
agent contributors
71.4%
largest contributor

02Drivers

What shapes this result

Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.

Assisted or autonomous

130assisted
3autonomous

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

Agent-attributed commit share by month
MonthAgent shareConsidered commits
2026-0133.3%3
2026-0222.2%18
2026-047.1%28
2026-057.7%26
2026-069.1%11
2026-0767.3%110
2026-0847.2%72
2026-0953.6%28

Peak month: 67.3%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic13144.3%
Cursor AgentAnysphere20.7%

03Evidence

Inspect the matches

Public commit samples let you inspect the signatures behind the aggregate result.

Matched commit samples

  • e4e112d9 on GitHubchore(deps): declare pnpm overrides only in pnpm-workspace.yaml (#1816)Claude Code
  • aedf4d0c on GitHubfix(archive): preserve blank lines inside code fences (#1798)Claude Code
  • d9e1a28c on GitHubfix(update): refresh generated files that drifted (#1808)Claude Code
  • 18cbf5d3 on GitHubfix(parser): ignore fenced code blocks when parsing delta specs (#1151)Cursor Agent
  • 9aded17a on GitHubfix(validator): hint when SHALL/MUST appears only in requirement header (#Cursor 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 window325
Merge commits removed−0
CI / dependency bots removed−29
Considered296

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
Fission-AI/OpenSpec
Default branch
main
Resolved HEAD
9d4e5974e5c0d9a09b9c6c1e1eb0975e80ec4461 ↗
Resolved
2026-09-16
Measurement window
February–September 15, 2026
Download observation JSONDeterministic export · same values as this page

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.

CohortJS/TS · 376 eligible repositories · at least 100 considered commits2026-09-18-v3.0 · February–September 15, 2026 · 194 of 570 ecosystem repositories excluded
Agent-commit share position93rd percentile

Midrank percentile; equal shares split the tied positions.

Repository
44.9%
Cohort median
5.4%
Share rank
28 / 376
0th50th100th

Percentile = (repositories below + half of 1 tied repository) ÷ 376.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →Cursor Agent commitsBrowse repositories with detected Cursor Agent signatures →GitHub AI commit analyzerInspect another repository with the same evidence model →
Reproduce this observation

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 Fission-AI/OpenSpec

Scan another repository

Try