AST-Grep Integration

Structural code search, lint, and transformation tool using Abstract Syntax Tree analysis.

Quick Reference

What is AST-Grep

AST-Grep (sg) is a fast, polyglot tool for structural code search and transformation. Unlike regex-based search, it understands code syntax and matches patterns based on AST structure.

When to Use

• Searching for code patterns that regex cannot capture such as nested function calls
• Refactoring code across multiple files with semantic awareness
• Security scanning for vulnerability patterns including SQL injection and XSS
• API migration and deprecation handling
• Enforcing code style rules at the syntax level

Core Commands