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 fast and lightweight native programming language

titzer/virgil ↗

titzer/virgil AI coding statistics: 3.6%

of 196 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
3.6% agent · top contributor 100%1 contributor
individual

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

7
agent commits
189
other considered commits
1
agent contributors
100%
largest contributor

What shapes this result

Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.

Assisted or autonomous

7assisted
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%20
2026-030%40
2026-040%18
2026-050%15
2026-060%15
2026-0712.2%49
2026-083.7%27
2026-090%12

Peak month: 12.2%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic73.6%

Inspect the matches

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

Matched commit samples

  • 23887b24 on GitHub[regalloc] Fix register coalescing and put it behind -regalloc-coalesce (#Claude Code
  • a0c25b3e on GitHub[doc] Ideas for an adversarial register allocator fuzzerClaude Code
  • 325e54e6 on GitHub[regalloc] Build the interference graph with O(1) edge insertion (#728)Claude Code

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 window203
Merge commits removed−0
CI / dependency bots removed−7
Considered196

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

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 titzer/virgil

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