Deep Codebase Understanding Makes Agent Coding Fast—and Humans Should Still Own the Code

antoine_chaffin · x · 2026-09-21

A developer shares practical takeaways on coding with agents: when you deeply understand the codebase, you can ship fast—the upfront cost is higher, but iteration becomes fast and healthy. He still argues humans should own the code, not because agents can't succeed, but because humans remain in the loop; being responsible for decisions without owning the code feels wrong. The reply echoes this: experimenting on PyLate, a library he knows intimately, he can far more easily direct the agent and give accurate feedback.

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