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Callbacks, var, and CommonJS → async/await, const, and ESM automatically.
This skill has significant install counts or stars from a credible organisation.
legacy-to-modern rewrites outdated JavaScript patterns: callbacks to async/await, var to const/let, prototype chains to ES6 classes, CommonJS require() to ESM import/export. It runs AST-level transforms — not regex — preserving semantics while targeting your specified ECMAScript version.
legacy-to-modern is ideal for developers, teams, and agents who need to callbacks, var, and commonjs → async/await, const, and esm automatically.. Whether you're automating workflows, improving code quality, or extending functionality, this claude skill integrates directly into Claude Code.
Getting started with legacy-to-modern is straightforward. Follow the steps below to install this claude skill into your Claude Code environment and start using it immediately.
claude in your terminal — if it opens, you're ready./ inside Claude Code to see your installed skills and invoke them by name.