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

langchain-ai/langchainjs ↗

langchain-ai/langchainjs AI coding statistics: 8.1%

of 458 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
8.1% agent · top contributor 32.4%25 contributors
org-wide

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

37
agent commits
421
other considered commits
25
agent contributors
32.4%
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

36assisted
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. Across the whole index, 96% of agent commits are assisted.

Agent share by month

Agent-attributed commit share by month
MonthAgent shareConsidered commits
2026-0211%100
2026-035.9%153
2026-047.3%41
2026-058.2%49
2026-067.9%38
2026-076.7%15
2026-0815.4%39
2026-090%23

Peak month: 15.4%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic286.1%
Cursor AgentAnysphere92%
GitHub CopilotGitHub10.2%

03Evidence

Inspect the matches

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

Matched commit samples

  • 6bffc712 on GitHubfeat(anthropic): add claude-sonnet-5 model support (#11475)Claude Code
  • 041a7558 on GitHubfix(anthropic): preserve generic tool_search_tool_result blocks (#11421)Claude Code
  • d36ec6a6 on GitHubfix(anthropic): preserve gateway cost on the native stream path (#11359)Claude Code
  • 5ff9179e on GitHubfix(google-genai): guard streaming chunks when candidate has no content (#Cursor Agent
  • 1c4dadbc on GitHubfix(anthropic): preserve gateway (LiteLLM) cost in streamed metadata (#112Cursor Agent
  • 04edb8d0 on GitHubdocs(ibm): fix "Recieved" typo in tool_choice error message (#11066)Cursor Agent
  • 67cc069a on GitHubfix(docs): update an outdated middleware example (#10146)GitHub Copilot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 window789
Merge commits removed−47
CI / dependency bots removed−284
Considered458

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
langchain-ai/langchainjs
Default branch
main
Resolved HEAD
778566e60d9dde923a9074e6ebbe2129dcb9d580 ↗
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 position60th percentile

Midrank percentile; equal shares split the tied positions.

Repository
8.1%
Cohort median
5.4%
Share rank
150 / 376
0th50th100th

Percentile = (repositories below + half of 3 tied repositories) ÷ 376.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →GitHub Copilot commitsBrowse repositories with detected GitHub Copilot 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 langchain-ai/langchainjs

Scan another repository

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