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.

This repo hosts the source for the DirectX Shader Compiler which is based on LLVM/Clang.

01Result

microsoft/DirectXShaderCompiler ↗

microsoft/DirectXShaderCompiler AI coding statistics: 26%

of 312 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
26% agent · top contributor 44.4%9 contributors
org-wide

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

81
agent commits
231
other considered commits
9
agent contributors
44.4%
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

81assisted
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
2026-0216.1%31
2026-0315.4%65
2026-0416.4%55
2026-055.6%18
2026-066.3%16
2026-0731.6%38
2026-0851.8%56
2026-0942.4%33

Peak month: 51.8%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
GitHub CopilotGitHub8126%

03Evidence

Inspect the matches

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

Matched commit samples

  • 397ffb22 on GitHub[SM6.10] Define and Dump LinAlg PSV0 runtime data (#8913)GitHub Copilot
  • ef47f5aa on GitHub[HLSL] Add LinAlg descriptor bounds coverage for matrix accumulation (#888GitHub Copilot
  • 1f7e11c1 on GitHub[HLSL] Add thread-scope MatVec semantics coverage (#8879)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 window315
Merge commits removed−1
CI / dependency bots removed−2
Considered312

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

Continue exploring

GitHub Copilot commitsBrowse repositories with detected GitHub Copilot signatures →C++ AI coding statisticsCompare evidence across C++ 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 microsoft/DirectXShaderCompiler

Scan another repository

Try