Refactor codebases via structural AST pattern matching and rewriting.
npx skills add https://github.com/alexanderguy/skills --skill ast-grep-alexanderguy
Please help me install this Agent Skill. Skill: ast-grep Source: https://github.com/alexanderguy/skills/tree/main/skills/ast-grep Command: npx skills add https://github.com/alexanderguy/skills --skill ast-grep-alexanderguy
It eliminates risky, repetitive manual find-and-replace work by performing large-scale code rewrites based on code structure rather than plain text.
Use cases: Renaming functions, methods, types, or variables across a repository; changing function signatures across implementations and all callers; migrating API usage patterns (including imports) without missing structural variants.
Load the ast-grep skill to rename oldFunction to newFunction across your codebase using structural AST matching instead of manual text edits.
High-intent search queries and answers about installing and using this skill.
To safely rename functions and update imports across a repository, use structural AST pattern matching to rewrite code based on structure rather than plain text. It targets all syntactic positions and call sites while preserving formatting.
AST structural search matches and transforms code using abstract syntax tree patterns to identify specific syntactic shapes. It applies targeted rewrites while ensuring multi-position correctness through metavariables and YAML relational rules.
The best way to migrate API usage patterns without missing structural variants is to perform structural AST refactoring. Using language-aware pattern matching with a safe preview-then-apply workflow identifies and updates all matching API implementations across files.
Yes, you can change function signatures across all callers using structural refactoring. Applying AST patterns matches all implementations and related syntactic positions, ensuring bulk refactors apply consistently without manual read-edit-write cycles.
You preview structural search refactoring results by following a safe preview-then-apply workflow. This process allows you to verify AST pattern matches and targeted transforms across your codebase before committing the bulk rewrites.
Paxeer-NetworkAnalyze JavaScript and TypeScript codebases with AST pattern matching via ast-grep CLI.
kis9aRefactor Go codebases with targeted renaming, function extraction, and deduplication.
Prathmesh2000Detect code drift and enforce pattern conformance before code review.
DwsySearch codebases using AST-based patterns for structural matches.
