git:20260518.471df3d to git:20260710.2925510
12 added, 22 removed. Audit A to B.
---
- name: "ast-grep Structural Code Search and Rewrite"
- slug: "ast-grep-structural-code-search-rewrite"
+ title: "ast-grep Structural Code Search and Rewrite"
description: "Use ast-grep (sg) to search, lint, and rewrite code across large codebases using AST pattern matching. A blazing-fast alternative to regex-based code transformations that understands syntax structure."
- github_stars: 13245
- verification: "listed"
+ verification: "security_reviewed"
source: "https://github.com/ast-grep/ast-grep"
- category: "Code Quality & Review"
- framework: "Claude Code"
+ category:
+ - "Code Quality & Review"
+ framework:
+ - "Claude Code"
tool_ecosystem:
github_repo: "ast-grep/ast-grep"
github_stars: 13245
---
# ast-grep Structural Code Search and Rewrite
Use ast-grep (sg) to search, lint, and rewrite code across large codebases using AST pattern matching. A blazing-fast alternative to regex-based code transformations that understands syntax structure.
## Installation
- Use the upstream install or setup path that matches your environment:
- - npm install --global @ast-grep/cli
- - pip install ast-grep-cli
- - brew install ast-grep
- - cargo install ast-grep --locked
-
- Requirements and caveats from upstream:
- - You can use $ sign + upper case letters as a [wildcard](https://en.wikipedia.org/wiki/Wildcard_character), e.g. $MATCH, to match any single AST node. Think of it as [regular expression dot](https://regexone.com/lesson...
- - You can install it from [npm](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm), [pip](https://pypi.org/), [cargo](https://doc.rust-lang.org/cargo/getting-started/installation.html), [cargo-binstall](...
-
- Basic usage or getting-started notes:
- - bash
- - # pnpm approve-builds may be needed
- - <details>
+ Choose whichever fits your setup:
- - Source: https://github.com/ast-grep/ast-grep
- - Extracted from upstream docs: https://raw.githubusercontent.com/ast-grep/ast-grep/HEAD/README.md
+ 1. Copy this skill folder into your local skills directory.
+ 2. Clone the repo and symlink or copy the skill into your agent workspace.
+ 3. Add the repo as a git submodule if you manage shared skills centrally.
+ 4. Install it through your internal provisioning or packaging workflow.
+ 5. Download the folder directly from GitHub and place it in your skills collection.
## Source
- [Agent Skill Exchange](https://agentskillexchange.com/skills/ast-grep-structural-code-search-rewrite/)