Is it safe to use for large-scale architectural changes?

Yes. The skill follows a strict workflow including a discovery phase, a detailed planning phase with impact assessment, and an optional interactive mode to verify changes before they are committed.

Do I need to have ast-grep installed to use this skill?

The skill will check for an ast-grep installation and can guide you through installing it via common package managers like Homebrew if it is missing from your environment.

How is this different from a standard find-and-replace?

Unlike text-based tools like sed or awk, this skill uses ast-grep to understand the code's structure. It won't accidentally change text inside comments or strings unless it matches the specific syntactic pattern you're targeting.

Which programming languages does this skill support?

It supports a wide range of popular languages including JavaScript, TypeScript, Python, Go, Rust, Java, C, C++, C#, Kotlin, Swift, Ruby, and PHP.

AST-Aware Code Refactoring

Name: AST-Aware Code Refactoring
Author: bcowdery

bybcowdery

0•

開発者ツール

Performs syntax-aware code transformations and bulk refactoring across multiple files using Abstract Syntax Trees.

The AST-Aware Code Refactoring skill empowers Claude to execute complex, large-scale code migrations and architectural changes with structural precision. By leveraging ast-grep, it moves beyond simple text-based search and replace to understand the underlying syntax of your codebase. This ensures that transformations like API migrations, syntax modernization, and systematic renames are applied correctly to logic while ignoring similar patterns in comments or strings, significantly reducing the risk of manual errors in high-impact refactors.

主な機能

01Bulk transformation across multiple files and directories

020 GitHub stars

03Support for 15+ languages including TypeScript, Python, and Rust

04Rule-based refactoring for complex architectural migrations

05Interactive refactoring plans with before-and-after previews

06Syntax-aware pattern matching using Abstract Syntax Trees

ユースケース

01Migrating from deprecated library APIs to modern alternatives across a large repository

02Systematically renaming functions and classes while preserving structural integrity

03Modernizing legacy syntax patterns such as converting var to const or require to import

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add bcowdery/claude-skills ast-refactor

For use in Claude.ai and ChatGPT

主な機能

01Bulk transformation across multiple files and directories

020 GitHub stars

03Support for 15+ languages including TypeScript, Python, and Rust

04Rule-based refactoring for complex architectural migrations

05Interactive refactoring plans with before-and-after previews

06Syntax-aware pattern matching using Abstract Syntax Trees

ユースケース

01Migrating from deprecated library APIs to modern alternatives across a large repository

02Systematically renaming functions and classes while preserving structural integrity

03Modernizing legacy syntax patterns such as converting var to const or require to import

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add bcowdery/claude-skills ast-refactor

For use in Claude.ai and ChatGPT