Automated README summary
Automatically summarized from the README on 3 Nov 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.
What it is
jev4s is an unofficial Scala client for Jev, the TypeSafe AI 'System One' model. It lets Scala 3 and 2.13 programs send typed questions about their own data and receive typed answers with probabilities, without text generation.
How it uses Jev
The user defines a state (e.g., a Ticket) and a ToState conversion to JSON. They build a named tuple of typed questions (Choice, Score, Noul, Box) referencing state fields. client.ask returns Either[JevError, Answers], where each answer has the type of its question; code matches on the result to make decisions.
Primitives:choicescorenoul
Technique worth stealing
Use Scala 3's type system to make invalid questions and answers compile errors, and return all validation problems as values before sending.
Try it
Add libraryDependencies += "io.github.maxtrezzi" %% "jev4s" % "0.2.0" and call JevClient(config).ask(state, questions).
Model judgments from README excerpts
Project signals use repository metadata, an existing summary and the first 700 README characters, not the full project. “Not found” means not detected in that material; it does not establish absence. These are the original judgments with recorded models and dates, not source audits or run results.
Models & evaluation dates
- Inclusion gate
jev-1.14.0- Project signals
jev-1.14.0- Category
jev-1.14.0- Pattern tags
jev-1.14.0
Evidence
These signals use repository metadata, an existing summary and at most 700 cleaned README characters. ≥ 0.60 means reported in that excerpt; ≤ 0.40 means not found there. The middle band is inconclusive. None is a source-code audit or a test result. The runnable-tool question excludes research experiments; the recommendation question asks for a learning shortlist, not a quality verdict.
- Jev is core to the projectFound in material0.73
- Shows a System One patternnot found in the excerpt0.26
- Describes handling uncertaintynot found in the excerpt0.04
- Reports measured numbersnot found in the excerpt0.02
- Is a runnable toolFound in material0.88
- Top-10 learning shortlist signalunclear0.45
- Is a replica of the modelnot found in the excerpt0.02
- Solves a common problem (0–2)score on a 0–2 scale1.00 / 2
- About JevFound in material0.99
no-judgment band (0.40–0.60)
no-judgment band (0.40–0.60)
The Jev model and date for each judgment stage are listed above. Card written by DeepSeek V4.1 Flash from the README on 3 Nov 2026.