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LiveUpdated 2026-09-19 18:50 UTC

Building a code reviewer that engineers actually trust is much harder than it looks. Our…

Building a code reviewer that engineers actually trust is much harder than it looks. Our engineer Dana wrote up the…

This is a AI post classified by Jev as AI coding agents (a launch), kept by the AI Radar because it carries real work, not commentary.

Building a code reviewer that engineers actually trust is much harder than it looks. Our engineer Dana wrote up the real story behind ours, including the parts that didn't work. Early versions ran on frontier models and hallucinated defects that weren't there, at $2.07 per review. The fix wasn't a bigger model, but a smaller, more deliberate system: a bounded read-only agent, an ensemble of cheaper models that de-correlate better than four runs of one strong model, and a simple constraint requiring every claim to quote the exact changed line. That last change alone took false positives from

Posted by coval (979 followers) 2 days ago · 4 likes · 333 views · view the original post on X. Kept by the AI Radar as AI coding agents.

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Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 27.2k posts from 4.8k X accounts over the last 14 days, 1.2k tools, 19 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-19 18:50 UTC. Full method.