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.

Pester is the ubiquitous test and mock framework for PowerShell.

01Result

pester/Pester ↗

pester/Pester AI coding statistics: 64.7%

of 201 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
64.7% agent · top contributor 98.5%3 contributors
individual

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

130
agent commits
71
other considered commits
3
agent contributors
98.5%
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

130assisted
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
2026-0466.7%3
2026-0696.5%86
2026-0764.3%70
2026-080%27
2026-090%15

Peak month: 96.5%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
GitHub CopilotGitHub12662.7%
Claude CodeAnthropic42%

03Evidence

Inspect the matches

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

Matched commit samples

  • a3b634f0 on GitHubSummarise complex objects when formatting instead of hanging (#2926)GitHub Copilot
  • 00b40ca8 on GitHubFix mock bootstrap proxy for cmdlets with no DefaultParameterSetName (#288GitHub Copilot
  • 3832c296 on GitHubMigrate Should-MatchString.Tests.ps1 to Verify-* assertions (#2883)GitHub Copilot
  • 909a8926 on GitHubModernize release tests, remove unused testRelease.ps1 (#2909)Claude Code
  • 336aabd7 on GitHubRemove unused internal functions (#2907)Claude Code
  • 9e282471 on GitHubAdd CLAUDE.md so Claude Code reads the repo agent instructions (#2904)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 window202
Merge commits removed−0
CI / dependency bots removed−1
Considered201

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 →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 pester/Pester

Scan another repository

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