Automated README summary
Automatically summarized from the README on 18 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.
What it is
An unofficial community skill for coding agents (Claude Code, Codex, Antigravity CLI, Muse, Muse Code) that teaches them to design Jev-based code: typed questions, calibrated confidence, and links to 150+ community projects with code sketches.
How it uses Jev
Jev is a System One model that takes content plus typed questions and returns a value and calibrated probability per question, usually in 100-200 ms. The skill guides agents to use Choice (pick from a list), Score (place content on a described scale), and Noul (probability a yes/no statement is true) for decisions like ticket routing, PR grading, or shell-command safety.
Primitives:choicescorenoul
Technique worth stealing
Design for Jev as a typed decision model, not a chat model: send content with Choice/Score/Noul questions and consume calibrated probabilities.
Try it
Install via the agent's plugin marketplace (e.g. claude plugin marketplace add aaddrick/building-with-typesafe-jev), optionally set TYPESAFE_API_KEY.
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-1.13.0- Project signals
jev-1.13.0- Category
jev-1.13.0- Pattern tags
jev-1.13.0
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 material0.86
- Shows a System One patternunclear0.56
- Describes handling uncertaintynot found in the excerpt0.07
- Reports measured numbersnot found in the excerpt0.04
- Is a runnable toolnot found in the excerpt0.20
- Top-10 learning shortlist signalnot found in the excerpt0.36
- Is a replica of the modelnot found in the excerpt0.05
- Solves a common problem (0–2)score on a 0–2 scale1.00 / 2
- About JevFound in material0.96
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 18 Oct 2026.