Ruff author charliermarsh: he only started using agents meaningfully in December 2025
charliermarsh · x · 2026-09-21
charliermarsh, author of Ruff, recalls that he didn't use coding agents in any meaningful way until December 2025 — and within less than a year the landscape moved to Opus 4.5, GPT-5.2 and an upcoming GPT-5.3-Codex. A timestamped first-person account of how fast coding agents went mainstream for a prominent open-source developer.
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