JEV Model Router

Key features

• Per-turn model routing inside Claude Code
• Manual override pauses routing; the status line shows the current pick
• jev-explain shows why a turn got its model
• One safe log line per turn — no prompts or keys are logged
• Zero dependencies — pure Python standard library
• Docker image published on GHCR

1. Claude Code

   model = jev-router

2. JEV Router

   local proxy

3. Jev

   best model + confidence

4. Anthropic API

   Haiku · Sonnet · Opus

1. 1jev-claude starts Claude Code with a local proxy as its API endpoint and adds a "JEV Router" entry to the /model picker.
2. 2When you send a message, the proxy asks Jev which model — newest Haiku, Sonnet or Opus — fits that turn, along with a confidence score.
3. 3The request goes to the Anthropic API with the chosen model and the response streams back unchanged; the status line shows the pick.
4. 4Choosing a model yourself pauses routing, and jev-explain shows why any turn got the model it did.

• Python 3.11+
• Claude Code
• TypeSafe Jev
• Anthropic API
• Docker