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Ruby Coding AgentsPreview

In Ruby repos on public GitHub, 35,774 PRs carried an agent mark between 2026-10 window start and end, which is 16.7% of all Ruby PRs. Claude Code does the most of it.

Coverage: tracks Claude Code, Codex, Copilot agent, Cursor, Devin, and Jules. Codex is measured through hosted task metadata, checked against sampled PRs. Gemini CLI and other terminal agents work through the developer's own identity, leaving nothing public we can detect yet, so they cannot be measured here. We are expanding coverage. Methodology

35,774

Agent-marked PRs

Latest month window

16.7%

Of all Ruby PRs

215K total in window

Claude Code

Does the most Ruby

82% of agent-marked PRs

20

Months tracked

Updated monthly

Who Does The Ruby Work

Agent-marked PRs in Ruby repos, latest month. Counts link to the live GitHub search.

Claude Code29,271 (82%)
Codex3,481 (10%)
Cursor2,160 (6%)
Jules479 (1%)
Devin166 (0%)

Ruby Over Time

Agent-marked Ruby PRs per month by agent, or each agent's share of them.

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