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Back to No.006 Jev in Practice: Browser Use and Agent WorkflowsUpdated 22 hours ago
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A layered agent design: Opus 5.5 reasons, Jev decides, the harness enforces rules

The author splits a single giant prompt into three layers: Opus 5.5 handles reasoning, Jev makes decisions with logged confidence scores, and the harness enforces rules, which is said to be cheaper and easier to debug.

CyrilXBT
@cyrilXBTArchived 19 days agoOriginally posted 2026.10.11
CyrilXBT @cyrilXBTOriginally posted 2026.10.11
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BEFORE: One model. One giant prompt. Responsible for everything. Nobody knows why it did what it did. AFTER: Opus 5.5 reasons. Jev decides. The harness enforces the rules. Every layer has one job. Every decision gets logged with a confidence score. Cheaper to run. Easier to debug. How to build it from scratch 👇

This post quotes another post: x.com/1373665408193036293/status/210869352490011…

x.com/cyrilxbt/status/2109192348177682528Archived 2026.10.12 10:06
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