Mirror Types

What it does

The mirror-types skill allows AI agents to reflect TypeScript types, effectively creating new types based on existing ones. This is useful for generating more complex or specialized type definitions programmatically. It can also be used to create aliases and perform type transformations within a TypeScript project. The skill facilitates advanced type manipulation without manual coding.

When to use it

• Generating custom type guards: Create specific type checks based on existing types, improving code safety and clarity.
• Automating boilerplate type definitions: Reduce repetitive typing by programmatically generating type declarations from source data or other type information.
• Creating complex union or intersection types: Simplify the creation of intricate type combinations that would be cumbersome to write manually.
• Refactoring TypeScript codebases: Automate type changes across a project, ensuring consistency and reducing errors during large-scale refactorings.

Key capabilities

• Type reflection
• Type generation
• Type aliases
• Type transformations

Example prompts

• "Generate a new type based on interface User { name: string; age: number; } but with the property 'age' optional."
• "Create an alias for the type type ApiResponse<T> = { data: T; status: number; } called PaginatedResponse where T is always an array."
• “Reflect the following type and output a summary of its properties: interface Product { id: string, price: number, description?: string }”

Tips & gotchas

This skill requires a working TypeScript environment. The agent's understanding of TypeScript syntax and semantics will influence the quality of generated types; ensure it has sufficient context for accurate reflection.