Jscodeshift

If you're writing codemods with jscodeshift, this gives you 40 specific rules from Facebook/Meta organized by impact. It covers the stuff that actually matters: parser configuration to avoid silently breaking on TypeScript, AST traversal patterns that won't tank performance on large codebases, and how to preserve comments when transforming nodes. The priority system is helpful because parser config and traversal patterns are marked critical while composition patterns are low priority, which matches reality. Each rule links to detailed examples with impact metrics. Worth having loaded if you're doing any serious code migration work or debugging why your transform is mangling output.

Install to Claude Code

npx -y skills add pproenca/dot-skills --skill jscodeshift --agent claude-code