tzachbon/claude-model-router-hook

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# Claude Model Router Hook

**Automatic model switching for Claude Code. No API calls, no config.**

[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
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<video src="docs/slides/public/model-router.mov" width="887" controls></video>

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A Claude Code hook system that classifies every prompt by task complexity and switches your active model automatically. Sub-agent model rules are injected into every session so spawned agents also use the right tier.

## Features

- Classifies prompts by complexity using keyword and pattern matching (zero API calls)
- Warns on tier mismatch by default; optionally auto-switches `settings.json` (`action: "autoswitch"`)

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