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.

An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs

01Result

delta-io/delta ↗

delta-io/delta AI coding statistics: 2.6%

of 879 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
2.6% agent · top contributor 43.5%9 contributors
org-wide

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

23
agent commits
856
other considered commits
9
agent contributors
43.5%
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

23assisted
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
2026-0212.9%70
2026-039.8%122
2026-040.8%126
2026-050%119
2026-060%123
2026-070%151
2026-080.9%113
2026-090%55

Peak month: 12.9%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic171.9%
Cursor AgentAnysphere70.8%
GitHub CopilotGitHub10.1%

03Evidence

Inspect the matches

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

Matched commit samples

  • 89681ebe on GitHub[Spark] Report numRows in estimateStatistics() using per-file stats (#6101Claude Code
  • 71bcdbd2 on GitHub[Spark] Add AlwaysTrue/AlwaysFalse filter pushdown to V2 connector (#6355)Claude Code
  • cbabe3ef on GitHub[kernel-spark] Simplify null check in decimal pushdown and add tests (#628Claude Code
  • e6e525e5 on GitHub[Kernel-Spark] Phase 2: Vectorized reader support for Deletion Vectors (#5Cursor Agent
  • 1ccf6718 on GitHub[DSv2] Wire SparkTable batch-write entrypoint (#6119)Cursor Agent
  • 64248480 on GitHubDisable FileSystem cache for S3, Azure, and GCS in SSP when using temp creCursor Agent
  • be0a4be1 on GitHub[Spark] support identity creation via sparksql (#7062)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 window879
Merge commits removed−0
CI / dependency bots removed−0
Considered879

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 →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 delta-io/delta

Scan another repository

Try