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hobbs/jev-turn-analysis

A Rust CLI that reads completed Claude Code and Codex sessions, scores them with Jev, and suggests specific changes to your agent instructions, skills and tools based on where work went well or got stuck.

hobbs/jev-turn-analysis on GitHub

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Language
Rust
Last push
21 Sep 2026

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How it uses Jev

let mut pairs = fixture();
pairs[0].1.usage = Some(json!({"requests":[{"model":"jev-version-a"}]}));
pairs[0].0.warnings.push("Malformed source record".into());
let mut later = pairs[0].clone();
later.0.id = "s_two".into();
later.1.usage = Some(json!({"requests":[{"model":"jev-version-b"}]}));
pairs.push(later);
let report = report(&pairs, &Filters::default()).unwrap();
assert_eq!(
    report["configuration_fingerprints"]
        .as_array()
        .unwrap()
        .len(),
    1
);

View in src/analytics.rs

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