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headline-arena

Sahilll15/headline-arena · Homepage

Rank headlines like a sports leaderboard using TypeSafe Jev.

Scoring & Ranking1.00Runner-up: Classification & RoutingScorecard
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

Headline Arena lets you paste 2 to 8 candidate headlines and an optional audience, then scores them on a sports-style leaderboard to see which wins the click.

How it uses Jev

Each headline is sent to Jev in its own call with format and audience as state. Jev answers five score questions (curiosity, clarity, specificity, emotional pull, credibility) and three yes/no questions (clickbait, audience click, promise). The app converts these numbers into a power rating out of 100.

Primitives:scorechoice

Technique worth stealing

Use Jev's numeric outputs to compute a weighted power rating with a clickbait penalty, keeping all text templated.

Try it

npm install, cp .env.example .env.local, add keys, npm run dev

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 material0.92
  • Shows a System One patternFound in material0.78
  • Describes handling uncertaintynot found in the excerpt0.04
  • Reports measured numbersnot found in the excerpt0.05
  • Is a runnable toolFound in material0.81
  • Top-10 learning shortlist signalunclear0.50
  • Is a replica of the modelnot found in the excerpt0.04
  • Solves a common problem (0–2)score on a 0–2 scale0.85 / 2
  • About JevFound in material0.97
Signals
Jev is core to the project0.92Shows a System One pattern0.78Describes handling uncertainty0.04Reports measured numbers0.05Is a runnable tool0.81Top-10 learning shortlist signal0.50Is a replica of the model0.0400.51Solves a common problem (0–2)0.85 / 2012

no-judgment band (0.40–0.60)

Design patterns
Scorecard0.98Questionnaire0.67Fail open, fail closed0.45Funnel0.44Viewfinder0.35Question bank0.2400.51

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 3 Oct 2026.