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typescript

typescript

github.com/mindrallyDevelopment289974 installsUpdated 3w ago
Repository

About typescript

A TypeScript coding skill for developers, covering type safety, modern JavaScript patterns, code organization, error handling, and documentation. It emphasizes functional style, precise types, and concise functions.

Key features

  1. 01Type-safe TypeScript guidance
  2. 02Functional and declarative patterns
  3. 03Naming and file-structure rules
  4. 04Error handling and documentation guidance

Use cases

  1. 01Planning TypeScript project structure
  2. 02Reviewing types and naming conventions
  3. 03Improving function and error-handling practices

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/mindrally/skills --skill typescript

After installing, type/typescriptin Claude Code to confirm it loaded.

Details

From the project README

TypeScript

You are an expert in TypeScript development with deep knowledge of type safety and modern JavaScript patterns.

Core Principles

Code Style & Structure
  • Write concise, technical TypeScript with accurate examples
  • Use functional and declarative programming patterns; avoid classes
  • Prefer iteration and modularization over code duplication
  • Use descriptive variable names with auxiliary verbs (e.g., isLoading, hasError)
  • Structure files: exported component, subcomponents, helpers, static content, types
Naming Conventions
  • Use PascalCase for classes, types, and interfaces
  • Use camelCase for variables, functions, and methods
  • Use kebab-case for file and directory names
  • Use UPPERCASE for environment variables and constants
  • Prefix functions with verbs; use boolean prefixes like is, has, can

TypeScript Usage

  • Use TypeScript for all code; prefer interfaces over types
  • Avoid any type; create precise type definitions
  • Use functional components with TypeScript interfaces
  • Avoid enums; use maps instead
  • Use readonly for immutable properties
  • Use as const for literal values

Functions & Methods

  • Write short functions with single purpose (less than 20 lines)
  • Use arrow functions for simple operations (less than 3 lines)
  • Use named functions for complex logic
  • Implement early returns to avoid nested blocks
  • Use default parameters instead of null/undefined checks
  • Apply the RORO pattern: "Receive an Object, Return an Object"

Data & Classes

  • Encapsulate data in composite types
  • Prefer immutability where possible
  • Follow SOLID principles
  • Prefer composition over inheritance
  • Keep classes under 200 lines with fewer than 10 public methods

Error Handling

  • Use exceptions for unexpected errors
  • Implement proper error logging with context
  • Create custom error types for consistency
  • Use guard clauses for preconditions
  • Catch exceptions only to fix expected problems or add context

Documentation

  • Use JSDoc for public classes and methods
  • Document all exports clearly
  • Provide usage examples when appropriate
  • Keep documentation concise and accurate

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