Skills / Conventions

typescript-conventions

Applies TypeScript conventions: composition, small single-purpose functions, tests for new functions, and formatter and import-alias discipline.

Group

Conventions

Kind

Read-only

Loads when

Writing or reviewing TypeScript

When it runs

When TypeScript files are being written or reviewed. Claude loads it on its own when the description matches the file or the task; it never writes anything itself. It matches:

• TypeScript files

The conventions

• Strict mode stays on. Never turned off in tsconfig.json to make a build pass.
• Composition over inheritance.
• Small functions. One purpose per function, near 30 lines or fewer.
• Tests for new functions. Every new function and its edge cases, written the way testing-conventions describes.
• The formatter decides. Follow the quote style and formatting the project's formatter enforces.
• Import aliases. Use the project's configured import alias instead of long relative paths.

Related

• testing-conventions: how to write the tests.
• error-handling-conventions: errors in TypeScript.
• comments-conventions: why a small function needs no comment.