Setup Auto-Route

Classification only happens if the model remembers to trigger it first, and reasoning about a task before classifying it bends the verdict toward whatever was already being planned. A UserPromptSubmit hook closes that gap: it runs outside the model's control, on every prompt, before any reasoning starts. It stays silent unless the verdict changes from the previous prompt in the session, so the route: line it writes into context means a boundary: work starting, ending, or shifting shape.

What works where

• Claude Code: fully supported (UserPromptSubmit command hook). This setup's only path.
• OpenCode / Codex CLI: neither exposes a UserPromptSubmit hook. There is no fallback here; routing on those harnesses stays manual.

Steps

1. Copy the hook script

The bundled script is at scripts/classify-and-route.sh.

Copy to .claude/hooks/classify-and-route.sh and make it executable (chmod +x).

2. Register the hook