priority: critical

Core Principles

Do only what's asked. Never create files unnecessarily. Prefer editing. No proactive docs/READMEs.

Python: Builtin imports at top, dataclasses frozen/hashable/slots, function-based tests only.

Rust: Never .unwrap() in production, SAFETY comments for unsafe, handle lock poisoning.

Architecture: ALL extraction logic lives in Rust core. Bindings provide language-idiomatic APIs only.