Automated README summary
Automatically summarized from the README on 3 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.
What it is
Tavli is a Greek backgammon game (Portes) played against Jev, TypeSafe's System One model, with a tutorial on building with typed decision models.
How it uses Jev
Jev reads the position via four questions, then picks among eight shortlisted legal plays using a Choice question; below 0.5 confidence code decides. The doubling cube is a Noul question. Race positions are solved in code.
Primitives:choicenoul
Technique worth stealing
Price risk in pips and withhold raw risk percentages; show features, not instructions.
Try it
yarn && yarn dev; add OpenRouter key in openrouter.txt or OPENROUTER_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 material0.90
- Shows a System One patternnot found in the excerpt0.36
- Describes handling uncertaintynot found in the excerpt0.07
- Reports measured numbersnot found in the excerpt0.07
- Is a runnable toolunclear0.52
- Top-10 learning shortlist signalFound in material0.61
- Is a replica of the modelnot found in the excerpt0.04
- Solves a common problem (0–2)score on a 0–2 scale0.04 / 2
- About JevFound in material0.98
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 Oct 2026.