What it is
Yoshi is a local proxy that sits between coding agents (Claude Code, Codex) and their providers, judging which conversation history is still needed and pruning the rest before forwarding requests.
How it uses Jev
Jev judges new spans once above a size gate, one span per request with up to eight in flight. Each request carries the current task, earlier user constraints, action chronology, paired completion results and retained evidence, and asks whether a required fact or binding user constraint would be lost. Verdicts are applied only if validated.
Primitives:choicescore
Technique worth stealing
Judge new spans once above a size gate, replay cached omissions without rejudging, and apply only validated omissions while keeping the protocol intact.
Try it
bun install; cp .env.example .env; set AI_GATEWAY_API_KEY; bun start
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricyes0.77
- Shows a System One patternno0.32
- Handles uncertaintyno0.06
- Measuredno0.09
- Runnableyes0.82
- Worth recommendingno0.26
- Model replicano0.31
- Problem scopescore on a 0–2 scale1.43
- About Jevyes0.97
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.