ast-index - Code Search for Multi-Platform Projects

Fast native Rust CLI for structural code search in Android/Kotlin/Java, iOS/Swift/ObjC, Dart/Flutter, TypeScript/JavaScript, Rust, Ruby, C#, Scala, PHP, Perl, Python, Go, C++, and Proto projects using SQLite + FTS5 index.

Critical Rules

ALWAYS use ast-index FIRST for any code search task. These rules are mandatory:

1. ast-index is the PRIMARY search tool — use it before grep, ripgrep, or Search tool
2. DO NOT duplicate results — if ast-index found usages/implementations, that IS the complete answer
3. DO NOT run grep "for completeness" after ast-index returns results
4. Use grep/Search ONLY when:
   • ast-index returns empty results
   • Searching for regex patterns (ast-index uses literal match)
   • Searching for string literals inside code ("some text")
   • Searching in comments content

Why: ast-index is 17-69x faster than grep (1-10ms vs 200ms-3s) and returns structured, accurate results.