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Three Agent Harnesses, One Loop

This story is from 2026-09-01. It is preserved in the archive; the latest stories are on the live feed.

Claude Code's agent loop is 1,729 lines of TypeScript. Codex's is 983 lines of Rust. Pi's is 794 lines of TypeScript. Three teams. Three languages. No shared code, no shared lineage, and in Pi's case an explicit design goal of being the small one. The loop lands in the same place anyway. That conve…

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  1. 2026-09-01 08:01 · DEV Community — AI
    Three Agent Harnesses, One Loop

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