Semantic code search - finds code by meaning, not just keywords. Use when:
- User asks WHERE or HOW something is implemented ("where is X handled", "how does Y work")
- You need to understand code behavior without knowing exact function names
- Exploring unfamiliar codebases where you don't know the terminology yet
- User asks a conceptual question about the codebase
NOT for: exact string matching, known file paths, import lookups, or simple identifier searches — use grep/Glob for those.
2026-04-30