A prompt that splits work between Jev as reflex layer and Opus 5.5 as deliberation layer
The author shares a prompt that makes Jev handle text-free typed decisions ($0.042 per million input tokens, free output) while Opus handles reasoning that needs context, and says it has run for a week.
MY INSDER IN ANTHROPIC JUST SHARED A PROMPT TO MAKE JEV + OPUS 5.5 A SECOND BRAIN not a model fight - a division of labor. jev (typesafe): no text, ever. state in, typed decisions out, in parallel. $0.042/M in, output free. that's the reflex. opus 5.5: the deliberation. writing, reasoning, the calls that need real context. reflex filters. deliberation decides. your software stops waiting on a paragraph it was never going to read. been running it a week. latency numbers coming - someone on your timeline needs them. what would you stop doing by hand if judgment cost nothing?
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