Pulse
2026-09-18-v3.0
Dataset
2026-10-27-catalog-ai-v2
Ruleset
b2e8889c66f7
Scanned
2026-10-27
Window
February–September 15, 2026
Catalog tracking observation. This repository is measured with the same fixed window and ruleset, but it is not part of the published benchmark or its aggregate claims.

Rust reflection, serialization, deserialization, pretty printing, etc. — the last proc macro you should need

01Result

facet-rs/facet ↗

facet-rs/facet AI coding statistics: 3.4%

of 4,521 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
3.4% agent · top contributor 98%4 contributors
individual

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

153
agent commits
4,368
other considered commits
4
agent contributors
98%
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

153assisted
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.

Agent share by month

Agent-attributed commit share by month
MonthAgent shareConsidered commits
2026-020%231
2026-030.2%420
2026-040%306
2026-050%186
2026-060.1%1899
2026-077.3%1398
2026-0859.3%81

Peak month: 59.3%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic1523.4%
GitHub CopilotGitHub10%

03Evidence

Inspect the matches

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

Matched commit samples

  • f2fc502e on GitHubfix(vox-types): its test target did not compile, so 101 tests never ranClaude Code
  • bb80ac96 on GitHubdocs(facet-core): say that `type_identifier` is a display tokenClaude Code
  • bbc4554d on GitHubfix(facet-core)!: `OpaqueBorrow` names itself, so rejections can say whichClaude Code
  • c379807c on GitHubPotential fix for pull request findingGitHub Copilot

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 window4,816
Merge commits removed−182
CI / dependency bots removed−113
Considered4,521

Bots are excluded from the denominator entirely. Agent attribution requires a literal supported signature; no code-style inference is used.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →GitHub Copilot commitsBrowse repositories with detected GitHub Copilot signatures →Rust AI coding statisticsCompare evidence across Rust repositories →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 facet-rs/facet

Scan another repository

Try