Jev Made Crystal Clear · chapter 2: How Jev Works: State In, Typed Answers Out
The Quick start request and its recorded response, joined by question ID (A, B, C)
2026-10-14
The request asked for jev-latest; the response reports jev-1.13.0, the model that answered. Instructions and criteria are abridged in the drawing; the full request is printed above. Values are the docs' recorded output, retrieved 2026-09-21.
Below: the paragraph from the book that builds this idea, then the diagram itself (Figure 2.2), and a recap. About a minute of reading.
The response mirrors the request. It has three fields. model reports the versioned ID that actually did the work (here jev-1.13.0, even though the request said jev-latest). answers is a map keyed by your question IDs, so your code reads the answer to department under department. usage counts input_tokens and output_tokens; only input is billed. Figure 2.2 lays the Quick start request beside its recorded response, with each question joined to its answer.
Recap
- The idea: The request asked for jev-latest; the response reports jev-1.13.0, the model that answered.
- The picture: Figure 2.2, from chapter 2 ("How Jev Works: State In, Typed Answers Out") of Jev Made Crystal Clear.
- Go deeper: the chapter builds this step by step, with recipes and sources at the end.
This diagram is one of many in Jev Made Crystal Clear.
Every chapter opens with the gist, draws the hard ideas, and ends with recipes and sources.
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