Jev Japanese

A Japanese working repository that gathers Jev environment setup, notes and tooling: an MCP server pinned to clef:flash, a Claude Code skill for deciding when to delegate to a decision model, call logs and a small evaluation set of delegation tasks.

A Japanese System One decision model built on modernbert-ja-310m: send text and typed questions and get typed answers with probabilities from one forward pass, no text generation, at 314.6M parameters that also run on a CPU.

A Python tool that asks TypeSafe Jev to fix Japanese readings in VOICEVOX: Sudachi splits sentences, Jev answers reading and phrase-boundary questions, and output comes as corrected WAV files or a VOICEVOX-compatible API server.

A 25-second IT-buzzword typing game built to feel how fast and cheap Jev is: each word gets five typed judgments in one request, and the screen shows the running cost next to the real HTTP request and response.

An unofficial cross-encoder fine-tune of ModernBERT-ja-310m for Jev Local: it reads a question-plus-state and one candidate per sequence and hits 92.62% on the JGLUE JNLI test, with CC BY-SA 4.0 weights.