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jev-tutorial

OutThisLife/jev-tutorial · Homepage

Jev tutorial: workflow gates, n8n, design systems on real data

Verification & Guardrails0.63Runner-up: Classification & Routing
Automated README summary

Automatically summarized from the README on 15 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.

What it is

An explainer and two sets of examples for TypeSafe Jev, a model returning calibrated probabilities instead of text. For developers building workflow gates, n8n automations, and design-system decisions.

How it uses Jev

The README does not specify which decisions Jev makes, on what state, or how results are used in code. It only states that Jev-backed gates and decisions are demonstrated in judge.py, cases/, and design/, with numbers rebuilt from results JSON files.

Try it

export OPENROUTER_API_KEY=...; cd cases && python3 run.py && python3 build.py; cd ../design && python3 run.py && python3 build.py

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 material0.88
  • Shows a System One patternFound in material0.71
  • Describes handling uncertaintynot found in the excerpt0.13
  • Reports measured numbersnot found in the excerpt0.14
  • Is a runnable toolunclear0.44
  • Top-10 learning shortlist signalFound in material0.71
  • Is a replica of the modelnot found in the excerpt0.05
  • Solves a common problem (0–2)score on a 0–2 scale1.63 / 2
  • About JevFound in material0.98
Signals
Jev is core to the project0.88Shows a System One pattern0.71Describes handling uncertainty0.13Reports measured numbers0.14Is a runnable tool0.44Top-10 learning shortlist signal0.71Is a replica of the model0.0500.51Solves a common problem (0–2)1.63 / 2012

no-judgment band (0.40–0.60)

Design patterns
Funnel0.29Flight recorder0.2000.51

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 15 Oct 2026.