Arai — CLAUDE.md that actually works
Description: Enforce AI coding assistant instruction files via hooks. One command. Runs locally. Zero cost.

# CLAUDE.md that actually works.

Enforce AI coding assistant instruction files via hooks. One command. Runs locally. Zero cost.

$ curl -sSf https://arai.taniwha.ai/install | sh click to copy

## Rules fire when they matter

You: "Create a new database migration"
PreToolUse: Write migrations/versions/001_add_users.py
→ Arai guardrails:
- Alembic never: hand-write migration files
Claude: "I should use alembic revision --autogenerate instead..."

## Smart, not noisy

### Intent-aware

"Never hand-write migrations" fires on Write but not Edit. Editing existing migrations is fine.

### Code graph

tree-sitter scans your codebase. Writing to migrations/ triggers alembic rules even without "alembic" in the file.

### Session tracking

"Never push without tests" silences after cargo test runs. Arai remembers what happened this session.

### Zero noise

Only fires domain-specific rules. Principles already in CLAUDE.md stay silent.

### Any LLM enrichment

Classify rules via Claude, Ollama, or any LLM CLI. Or use the built-in sentence transformer.

### <5ms latency

SQLite lookups on the hook path. No network calls. No LLM calls at runtime.

## Install

Script
`curl -sSf https://arai.taniwha.ai/install | sh`
Cargo
`cargo install arai`
Then
`cd your-project && arai init`