extract-command-router-from-tool-handler

To modularize command routing in a TypeScript CLI tool, extract the routing logic from monolithic tool handlers into dedicated router modules. This separates concerns by using Handler types and handler records to map command execution, improving maintainability.

You should extract command routing into a separate module when your CLI tool handler exceeds 200 lines and begins mixing command routing with execution logic. This separation creates clear, maintainable routing structures using Handler types.

The best way to manage subcommands in a growing command-line tool is utilizing Handler types and handler records. This approach maps commands to execution functions, allowing developers to maintain and add new subcommands with ease.

Yes, this command routing approach assumes a TypeScript-based environment and requires an existing switch/case or if/else structure alongside handler function mapping to properly extract and refactor command execution logic.

To refactor a tool handler file, create a new file for the Handler, such as `router.ts`, and import it into your original tool file. This extracts the command routing logic, leaving execution logic separated for scalable command management.

Yes, by extracting command routing logic into dedicated router modules with Handler types, you can use handler records to add new subcommands. This modularizes code and allows scaling command management without altering the primary tool file.