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Harness engineering for coding agents: what a working harness needs

Halfcycle is a module that runs a five-layer build method inside your own Claude Code or OpenAI Codex ( npx halfcycle ). A coding agent is a model plus a harness. The model writes the code. The harness is everything around it: what the agent is told, what it is allowed to touch, what checks its wor…

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  1. 2026-11-03 05:59 · DEV Community — AI
    Harness engineering for coding agents: what a working harness needs

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