typescript-type-discipline

What problem does it solve?

When working in TypeScript, inline object shapes and ad hoc type definitions lead to drift, duplication, and hard-to-maintain code. This Skill prescribes using named, exported types and interfaces to unify typing across the codebase, improving readability and refactor safety.

Core Features & Use Cases

• Enforce that every type used in function signatures, component props, and API responses is a named, exported type or interface.
• Remap and reuse types instead of duplicating fields by deriving types with TypeScript utilities like Pick, Omit, and Partial.
• Guidance on where to define types (dedicated module files, or co-located with implementation) and on naming conventions to ensure discoverability and consistency.

Quick Start

Apply this rule by replacing all inline object types with named exported interfaces and using type transformations (Pick, Omit, Partial) where needed.