jev-curate

jev-curate is a Rust-based pipeline for filtering synthetic and pretraining datasets using TypeSafe Jev's typed evaluation system. It streams Parquet and JSONL files through judgment rubrics, keeps passing rows, and writes rejects to separate files. Built for developers curating training data at scale, it offers three presets (reasoning-math, anti-sycophancy, code-correctness) and costs approximately $4.20 per 100M input tokens. The tool includes safety features like token bucket rate limiting, dry-run verification, and zero runtime dependencies, running as a single Rust binary or Python package.