coding-typescript

Guide type-safe TypeScript development with dependency injection and behavior-only testing.

1|Updated Jan 6, 2026
One-click install
npx skills add https://github.com/outcomeengineering/spx-claude --skill coding-typescript-outcomeengineering
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: coding-typescript
Source: https://github.com/outcomeengineering/spx-claude/tree/main/plugins/typescript/skills/coding-typescript
Command: npx skills add https://github.com/outcomeengineering/spx-claude --skill coding-typescript-outcomeengineering

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) and workflows (resource) components.

What problem does it solve?

This Skill guides you in writing robust, type-safe TypeScript code that adheres to best practices and is thoroughly tested, reducing bugs and improving maintainability.

Core Features & Use Cases

  • Type Safety Enforcement: Ensures strict type checking and prevents common JavaScript pitfalls.
  • Dependency Injection: Promotes modularity and testability by requiring explicit dependency management.
  • Test-Driven Development: Encourages writing tests before or alongside code to verify behavior.
  • Use Case: When implementing a new feature in a TypeScript project, use this Skill to ensure your code is well-structured, type-safe, and has comprehensive unit tests.

Quick Start

Write a new TypeScript function that takes a string array and returns a boolean, ensuring it's type-safe and has a corresponding unit test.

Frequently Asked Questions about coding-typescript

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

FAQPage Schema
How do I write type-safe TypeScript code with comprehensive unit tests?

To write type-safe TypeScript code, enforce strict type checking and use test-driven development to verify behavior. This approach prevents common JavaScript pitfalls and ensures your functions have corresponding unit tests before implementation.

What is the best way to structure a TypeScript project for dependency injection and testability?

The best way to structure a TypeScript project for dependency injection is to require explicit dependency management. This promotes modularity and testability, allowing you to isolate components and write behavior-only tests without hidden state dependencies.

How does test-driven development work with TypeScript strict type checking?

Test-driven development with TypeScript strict type checking involves writing tests before or alongside your code to verify behavior. Strict typing ensures that function inputs and outputs match expectations, reducing runtime bugs and improving maintainability.

Do I need dependency injection to write testable TypeScript code?

Yes, using dependency injection is required to write testable TypeScript code in this workflow. Explicit dependency management promotes modularity and enables behavior-only testing by allowing you to mock or substitute dependencies during unit tests.

Why does TypeScript type safety prevent common JavaScript runtime pitfalls?

TypeScript type safety prevents common JavaScript pitfalls by enforcing strict type checking at compile time. This catches type mismatches and undefined errors early, reducing bugs and ensuring robust, maintainable code before runtime execution.

Can I use existing project conventions when implementing new TypeScript features?

Yes, you can use existing project conventions when implementing new TypeScript features. This approach facilitates code discovery and enforces adherence to project conventions, ensuring new functions remain consistent with your established architecture.