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

Foundry376/Mailspring ↗

Foundry376/Mailspring AI coding statistics: 48.2%

of 411 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
48.2% agent · top contributor 87.9%8 contributors
individual

One person is driving this. The headline number reflects a single contributor's workflow, not a project-wide shift.

198
agent commits
213
other considered commits
8
agent contributors
87.9%
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

198assisted
0autonomous

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
2026-0267.2%58
2026-0320%50
2026-0462.5%64
2026-0552.4%63
2026-0660%25
2026-0741.7%36
2026-0844.4%45
2026-0937.1%70

Peak month: 67.2%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic19848.2%

03Evidence

Inspect the matches

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

Matched commit samples

  • 9a0ba872 on GitHubGroup the folder context menu with separatorsClaude Code
  • 26d667d8 on GitHubWire Mark All as Read through the callback itself, keep unread-count defauClaude Code
  • 45554aa2 on GitHubResolve keymaps base → template → package so templates can't clobber plugiClaude Code

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 window411
Merge commits removed−0
CI / dependency bots removed−0
Considered411

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
Foundry376/Mailspring
Default branch
master
Resolved HEAD
386a2c22c12902128220d1d68ad72abf5767cb57 ↗
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 position94th percentile

Midrank percentile; equal shares split the tied positions.

Repository
48.2%
Cohort median
5.4%
Share rank
22 / 376
0th50th100th

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

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code 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 Foundry376/Mailspring

Scan another repository

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