This skill should be used when the user asks to "find all console.log calls", "find functions without error handling", "find async functions missing try-catch", "remove all debug statements", "find deprecated API usage", "find classes that extend X", "find React components using useState", "bulk refactor function calls", "find all imports of X", "replace all X with Y across codebase", or any find/replace code patterns where text search misses formatting or argument variations.