TypeSafe's official Claude Code skill teaches agents to build on Jev correctly
An official skill that has Claude Code write Jev in the order docs, behaviour, judgments, one request, code decides, with 11 rules and a Choice/Noul/Score guide; in the cookbook, merging 13 questions into one call cut the bill to 1/12.2.
this is pure f*cking gold for anyone doing Jev engineering the skill that teaches Claude Code to build on Jev the right way, from TypeSafe themselves without it, coding agents send Jev one question at a time and guess the field names with it, the order is set before a single line gets written: docs -> behaviour -> judgments -> one request -> code decides the two-page breakdown of every rule: > the failure each of its 11 instructions is there to prevent > Choice, Noul or Score, picked at a glance > a prompt skeleton you paste straight into your agent 12.2x that's how far the bill fell in TypeSafe's cookbook when 13 questions went out in one call one short file, and your agent stops paying for decisions it should have batched
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