Astools -

npm install -g jscodeshift jscodeshift -t my-codemod.js src/

Using jscodeshift :

Note: If you were referring to a different specific software package named "astools" (such as a specialized system administration toolkit or a specific npm package), please provide more context so I can tailor the information accordingly. astools

| Feature | Description | |-----------------------|-----------------------------------------------------------------------------| | | Convert source text into a typed AST with location metadata. | | Querying | XPath/CSS-selector-like queries on AST nodes (e.g., ast-grep patterns). | | Transformation | Modify nodes, insert/delete/replace subtrees, preserve formatting (optional). | | Code generation | Emit source code from AST, often with comments/whitespace retention. | | Validation | Check structural rules (e.g., no nested callbacks deeper than 3 levels). | npm install -g jscodeshift jscodeshift -t my-codemod