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jev_playground

JYeswak/jev_playground

Measure what Jev can actually do before you build on it.

Automated README summary

Automatically summarized from the README on 16 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.

What it is

A playground for deciding which typed classifier technique answers coding-agent questions, proving it live, measuring value, and shipping winners through a model-neutral CLI. For teams building coding-agent fleets.

How it uses Jev

Jev is one technique among several. It answers typed questions (Choice, Score, Noul) over a JSON state, returning calibrated probabilities. The README does not specify which decisions Jev makes in the shipped CLI or how its output is used in code.

Primitives:choicescorenoul

Technique worth stealing

Labels first; constant and cheapest rule set the bar; commit the bar before the first call; calibrate all backends the same way.

Try it

npx --prefix kit --no-install classifier rerank --query "..." --candidates kit/examples/rerank-candidates.json --fake --robot

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 material0.83
  • Shows a System One patternFound in material0.76
  • Describes handling uncertaintynot found in the excerpt0.07
  • Reports measured numbersnot found in the excerpt0.07
  • Is a runnable toolFound in material0.62
  • Top-10 learning shortlist signalunclear0.42
  • Is a replica of the modelnot found in the excerpt0.13
  • Solves a common problem (0–2)score on a 0–2 scale1.77 / 2
  • About JevFound in material0.96
Signals
Jev is core to the project0.83Shows a System One pattern0.76Describes handling uncertainty0.07Reports measured numbers0.07Is a runnable tool0.62Top-10 learning shortlist signal0.42Is a replica of the model0.1300.51Solves a common problem (0–2)1.77 / 2012

no-judgment band (0.40–0.60)

Design patterns
Check-up0.98Inspection0.97Funnel0.90Menu0.55Flight recorder0.52Traffic light0.2900.51

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 16 Oct 2026.