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Claude Code leads AI-signed PRs in GitHub repos, study finds

By PulseAugur Editorial · [1 sources] ·

A study analyzing 450 popular GitHub repositories over 12 months found that Claude Code was the most frequently credited AI tool for signed pull requests (PRs). While Claude Code signed PRs in 279 repositories, the study noted this figure reflects what tools record rather than actual usage, as Claude Code automatically adds its signature unless disabled. The research also indicated a general increase in AI-signed PRs across repositories, with a typical AI-generated PR being larger than human-written ones. AI

IMPACT Provides insight into the prevalence and attribution of AI-generated code in open-source projects.

RANK_REASON Analysis of AI tool contributions to open-source code repositories. [lever_c_demoted from research: ic=1 ai=1.0]

Read on r/ClaudeAI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude Code leads AI-signed PRs in GitHub repos, study finds

How we ranked this

Signal score
7 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Analysis of AI tool contributions to open-source code repositories. [lever_c_demoted from research: ic=1 ai=1.0]
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/ClaudeAI TIER_2 English(EN) · /u/coderot_ai ·

    We counted AI-signed PRs in 450 popular GitHub repos. Claude Code signs the most in 279 of 383

    <!-- SC_OFF --><div class="md"><p>We measured 12 months of merged PRs (Oct 2025 to Sep 2026) in GitHub's most popular repos, across 9 languages, counting the PRs where an AI tool left a signature: co-author trailers, bot authors, agent branches and similar.</p> <p><strong>What we…

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