AnalysisDevelopersSeptember 3, 2026

Study measures which tools Claude, Codex, Cursor install across 17k runs

Armature ran 17,000 coding-agent runs across 75 repositories in 10 languages to measure which tools Claude, Codex, and Cursor choose. They used 1,163 task variations from four engineer personas, including vibe-coders and enterprise engineers.

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Study measures which tools Claude, Codex, Cursor install across 17k runs