similarity-rs 0.5 — Rust duplication detection

Tool status: Beta — not production-tested per the upstream README. Evaluate findings manually before acting.

When to use this skill

Antipattern triggers (act before writing code):

• About to write a utility function — grep the codebase first; it may already exist.
• Caught yourself thinking "I'll just inline this here."
• Planning to copy-paste-modify an existing function with small changes.
• Adding a new enum or struct that may overlap with an existing one.
• Two Plugin setups that share large blocks of boilerplate.
• Similar Bevy systems that differ only in their Query filter component.
• Repeated commands.spawn((Mesh3d(...), MeshMaterial3d(...), ...)) patterns that belong in a Bundle.