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.

A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller, a major upgrade to lodash.

01Result

toss/es-toolkit ↗

toss/es-toolkit AI coding statistics: 10.8%

of 316 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
10.8% agent · top contributor 17.6%17 contributors
org-wide

Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.

34
agent commits
282
other considered commits
17
agent contributors
17.6%
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

34assisted
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%2
2026-035.9%17
2026-0410.5%19
2026-0528.1%32
2026-068.5%82
2026-074.4%68
2026-0810.8%83
2026-0923.1%13

Peak month: 28.1%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic319.8%
GitHub CopilotGitHub30.9%

03Evidence

Inspect the matches

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

Matched commit samples

  • 0d288f69 on GitHubfix[xorBy, xorWith]: ignore the iteratee and comparator for a single arrayClaude Code
  • 9c6ca7dc on GitHubfix[pull, pullAll, pullAllBy, remove]: handle nullish inputs like lodash (Claude Code
  • 17719a5f on GitHubfix[dropWhile, dropRightWhile, some]: normalize the predicate like lodash Claude Code
  • 3fdea04c on GitHubfeat(flattenObject): add preserveArrays option (#974)GitHub Copilot
  • a35816e7 on GitHubfix(compat/lastIndexOf): coerce fromIndex like lodash (#1832)GitHub Copilot
  • d76754d2 on GitHubfeat: Change AbortError/TimeoutError to extend DOMException (#1660)GitHub 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 window362
Merge commits removed−3
CI / dependency bots removed−43
Considered316

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 →TypeScript AI coding statisticsCompare evidence across TypeScript 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 toss/es-toolkit

Scan another repository

Try