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jev-playtest-lab

gbesse/jev-playtest-lab

Replayable, revision-safe game decision lab for Jev.

Automated README summary

Automatically summarized from the README on 4 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.

What it is

A lab where code simulates game outcomes and Jev evaluates legal actions. It is for developers integrating Jev into game engines via a neutral HTTP protocol.

How it uses Jev

Jev ranks a finite list of legal actions given the current world state, goal, and optional code-simulated outcomes. The host retains execution authority; Jev never executes actions directly.

Primitives:choice

Technique worth stealing

Revision-safe decision marking: autopilot only marks a decision executable when revision matches, action is legal, and thresholds clear.

Try it

npm test && npm run demo && npm run serve, then open http://127.0.0.1:8798

View on GitHub

Start using Jev: API key and your first request →

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 material0.78
  • Shows a System One patternunclear0.55
  • Describes handling uncertaintynot found in the excerpt0.07
  • Reports measured numbersnot found in the excerpt0.04
  • Is a runnable toolFound in material0.87
  • Top-10 learning shortlist signalunclear0.50
  • Is a replica of the modelnot found in the excerpt0.11
  • Solves a common problem (0–2)score on a 0–2 scale0.73 / 2
  • About JevFound in material0.93
Signals
Jev is core to the project0.78Shows a System One pattern0.55Describes handling uncertainty0.07Reports measured numbers0.04Is a runnable tool0.87Top-10 learning shortlist signal0.50Is a replica of the model0.1100.51Solves a common problem (0–2)0.73 / 2012

no-judgment band (0.40–0.60)

Design patterns
Flight recorder0.89Funnel0.3800.51

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 4 Oct 2026.