ast-grep: Structural Code Search and Editing

Always invoke the ast-grep skill for structural code search and refactoring - do not execute bash commands directly.

Default Strategy

Invoke analyzing-code-structure skill for structural code search and refactoring. Use when:

• Text-based Edit tool fails with "old_string not unique"
• Need formatting-independent pattern matching
• Performing structural changes across code

Common workflow: Invoke extracting-code-structure skill first, then analyzing-code-structure skill for structural modifications.

Use ast-grep to solve the "old_string not unique" problem by matching code structure instead of exact text. This enables refactoring across formatting variations and structural patterns.

When to Use analyzing-code-structure vs Text Tools