typescript

Enforce TypeScript best practices for type safety and maintainability.

Updated Jan 26, 2026
One-click install
npx skills add https://github.com/333-333-333/vim-roguelike --skill typescript-333-333-333
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: typescript
Source: https://github.com/333-333-333/vim-roguelike/tree/main/skills/typescript
Command: npx skills add https://github.com/333-333-333/vim-roguelike --skill typescript-333-333-333

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes assets (resource) components.

What problem does it solve?

TypeScript codebases often struggle with inconsistent typing, rigid interfaces, and scattered type patterns. This skill codifies const-based types, flat interfaces, safe generics, and robust type guards to improve maintainability and catching errors earlier.

Core Features & Use Cases

  • Const types pattern: create runtime values using const objects and derive types with typeof/keyof for a single source of truth.
  • Flat interfaces: keep types shallow and composable for easier refactoring.
  • Type guards and assertion utilities: validate runtime data and narrow unknowns safely.
  • Use Case: When integrating a new domain model, convert it to const-based types and a small set of guards to enforce correctness at boundaries.

Quick Start

Start by converting a sample User type to use const patterns and flat interfaces, then add a simple isUser guard.

Frequently Asked Questions about typescript

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I enforce type safety and avoid using any in TypeScript projects?

TypeScript const patterns use const objects as runtime values and derive types using typeof and keyof, creating a single source of truth to eliminate duplication and improve maintainability across your domain models.

What is the best way to structure flat interfaces for TypeScript domain models?

Flat interfaces in TypeScript keep types shallow and composable, making refactoring easier while enforcing one-level interface structures across modules to prevent rigid and deeply nested type hierarchies.

How do I write type guards to safely narrow unknown runtime data in TypeScript?

TypeScript type guards and assertion utilities validate runtime data and narrow unknowns safely at boundaries, ensuring correctness when integrating new domain models by verifying data shapes before processing.

Can I use clean generics and utility types across all my TypeScript modules?

Yes, clean generics and utility types are supported across TypeScript modules, providing flexible type constraints that improve code reusability while maintaining strict type safety without relying on any.

Why does my TypeScript codebase struggle with scattered type patterns and rigid interfaces?

Scattered type patterns and rigid interfaces occur when TypeScript codebases lack consistent typing, which you can resolve by codifying const-based types, flat interfaces, and safe generics to improve maintainability.