Derives TypeScript types from single sources using utility types and mapped types.
npx skills add https://github.com/pohlai88/afenda-xforge-v5 --skill dry-types-pohlai88
Please help me install this Agent Skill. Skill: dry-types Source: https://github.com/pohlai88/afenda-xforge-v5/tree/main/.agents/skills/dry-types Command: npx skills add https://github.com/pohlai88/afenda-xforge-v5 --skill dry-types-pohlai88
High-intent search queries and answers about installing and using this skill.
Use extends to add fields to a base interface, or derive subsets with Pick and Omit. This keeps all derived types synchronized with the single source of truth when the base type changes.
Use Partial<T> to make all fields of a type optional, which is ideal for update functions. Combine it with Omit, like Partial<Omit<User, 'id'>>, to exclude immutable fields from updates.
Pick<T, K> creates a type with only the specified keys, while Omit<T, K> creates a type with all keys except the specified ones. Both derive new types from an existing type without duplication.
Avoid factoring out types that are only coincidentally similar, such as Product and Customer both having id and name. If the shared fields are semantically different and may evolve independently, the abstraction is premature.
Use ReturnType<typeof myFunction> to derive a type from a function's return value. This keeps the type in sync automatically when the function implementation changes.
darellchua2Analyze TypeScript codebases and refactor duplicated logic into shared utilities.
armanisadeghiEnforce database-derived types as the single source of truth in TypeScript code.
gil00pitaAdd static typing to JavaScript projects using the TypeScript compiler.
luyi985Generate TypeScript types from OpenAPI, GraphQL, or database schemas.
