jev-cookbook

Checked, not fully reviewed. Every recipe calls Jev through OpenRouter, so we read them and their recorded results rather than running them. No Jev calls.

Fifteen recipes, one folder each with a README, a script and sample data: support triage, database indexing, a file organiser, multi-label tagging, a taxonomy walk, record dedupe, a PII column scanner, transaction categories, extraction by picking, search reranking, log triage, moderation, lead scoring, a browser agent and a Gmail labeller.

The part worth copying is the receipts. Each recipe’s run is committed under results/ with the time it ran, the model requested and the model that answered, token usage, and what it got wrong — misses and per-field breakdowns, not only a headline. Every recipe routes on confidence and reports how many items it sent to review. The sample sets are small, a few dozen rows each and written for the recipe, so read the numbers as a smoke test of the method rather than of Jev; we do not republish them.

MIT, 35 stars. The best set of copyable examples we have seen, with the evidence beside each one.

See how it compares with other tools in Best Jev tools, tested hands-on.

Review updated Oct 4, 2026. Numbers quoted from the project are its author's own; we don't publish our own measurements of Jev.