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 native Rust library for Delta Lake, with bindings into Python

01Result

delta-io/delta-rs ↗

delta-io/delta-rs AI coding statistics: 7%

of 531 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
7% agent · top contributor 37.8%10 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
494
other considered commits
10
agent contributors
37.8%
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

37assisted
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%61
2026-030%77
2026-040%101
2026-0512.5%64
2026-0611.1%90
2026-077.4%27
2026-0814.5%83
2026-0917.9%28

Peak month: 17.9%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic356.6%
GitHub CopilotGitHub20.4%

03Evidence

Inspect the matches

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

Matched commit samples

  • 5829264c on GitHubfix: improve column mapping with some generated review and patchesClaude Code
  • fe30d3f7 on GitHubchore: slimming some dependencies ahead of release (#4707)Claude Code
  • cbdcfae6 on GitHubrefactor: consolidate parquet read and write paths behind traits (#4568)Claude Code
  • 35cfed45 on GitHubfeat(catalog-unity): add custom token credential support to UnityCatalogBuGitHub Copilot
  • 3829945a on GitHubfeat: support dropping NOT NULL constraint on a column (DROP NOT NULL) (#4GitHub 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 window536
Merge commits removed−0
CI / dependency bots removed−5
Considered531

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 →Rust AI coding statisticsCompare evidence across Rust 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 delta-io/delta-rs

Scan another repository

Try