error-handling-fundamentals

Implement robust error handling for asynchronous fetch and API operations.

274|18|Updated Dec 23, 2025
One-click install
npx skills add https://github.com/DanielPodolsky/ownyourcode --skill error-handling-fundamentals
Or copy as Structured Prompt for Agent
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Skill: error-handling-fundamentals
Source: https://github.com/DanielPodolsky/ownyourcode/tree/main/.claude/skills/fundamentals/error-handling
Command: npx skills add https://github.com/DanielPodolsky/ownyourcode --skill error-handling-fundamentals

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill guides developers to design and implement robust error handling for asynchronous code, API interactions, and user-facing responses, turning failures into actionable information.

Core Features & Use Cases

  • Error catching discipline: ensures meaningful and contextual error messages without leaking sensitive details.
  • Recovery and resilience: includes retry strategies, fallbacks, and loading state management to maintain a good user experience.
  • Observability: promotes structured logging, error categorization, and debugging aids to speed up issue resolution.

Quick Start

Review and apply the patterns to a sample API call: wrap the fetch in try/catch, add a finally block to reset loading state, and provide user-friendly feedback for common failure scenarios.

Frequently Asked Questions about error-handling-fundamentals

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

FAQPage Schema
How do I handle async errors in JavaScript fetch calls without crashing the app?

Handle async errors by wrapping fetch calls in try/catch blocks, using a finally block to reset loading states, and providing user-friendly feedback for common API failure scenarios.

What's the best way to retry failed promises and recover from API errors?

The best way to retry failed promises involves implementing structured recovery strategies, including retry logic for failed API calls and fallback options to maintain a resilient user experience.

How does try/catch work with async/await for API error handling?

Try/catch with async/await for API error handling works by catching rejected promises, allowing you to manage error scope, avoid leaking sensitive details, and return meaningful contextual messages.

How do I log async errors for debugging without exposing sensitive details?

Log async errors for debugging by using structured logging and error categorization, ensuring contextual information is captured for observability while preventing sensitive details from reaching users.

Why does my promise rejection disappear without proper error scope?

Your promise rejection disappears because proper error scope is missing; async operations require disciplined try/catch implementation to capture failures and convert them into actionable information.

Can I use these error handling patterns for both frontend and backend development?

Yes, you can use these patterns for both frontend and backend development, as they apply to asynchronous operations, API integration, loading state management, and user-facing responses across the stack.