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.

Bub it. Build it. A tiny agent runtime, composable with plugins.

01Result

bubbuild/bub ↗

bubbuild/bub AI coding statistics: 2%

of 458 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
2% agent · top contributor 33.3%6 contributors
team

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

9
agent commits
449
other considered commits
6
agent contributors
33.3%
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

8assisted
1autonomous

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%156
2026-030.7%151
2026-045.8%69
2026-055.3%19
2026-060%18
2026-077.7%13
2026-085.3%19
2026-097.7%13

Peak month: 7.7%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
GitHub CopilotGitHub51.1%
Claude CodeAnthropic40.9%

03Evidence

Inspect the matches

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

Matched commit samples

  • 15d8bcdd on GitHubfeat: spill oversized tool results to tape (#278)GitHub Copilot
  • c5c9132a on GitHubfix: reverse hook implementation order in collect_onboard_config and updatGitHub Copilot
  • ddb203f9 on GitHubfix: include default path for 'uv' executable search in _find_uv functionGitHub Copilot
  • 33ab1054 on GitHubdocs: replace hook-first tagline with composable-with-plugins (#308)Claude Code
  • 0d7aaf00 on GitHubfeat: agent-loop hooks — before/after LLM & tool calls + wrap_tool_call (#Claude Code
  • e50dc084 on GitHubfix: enable colored loguru output for terminal display (#189)Claude 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 window506
Merge commits removed−31
CI / dependency bots removed−17
Considered458

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 →Python AI coding statisticsCompare evidence across Python 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 bubbuild/bub

Scan another repository

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