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async-and-error-handling

Agent skill

async-and-error-handling

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SKILL.md

日本語版

Async Programming and Error Handling Complete Guide

Async programming is the foundation of modern applications. Error handling is the cornerstone of software reliability. This guide systematically covers these two closely related topics, including implementations and best practices across multiple languages.

Target Audience

Engineers who want to deeply understand async programming mechanisms and patterns
Developers seeking best practices for error handling
Anyone looking to organize their understanding of Promise, async/await, and Result types

Prerequisites

Programming basics (functions, control flow)

Guide Index

00-introduction (Introduction)

File	Topic	Summary
00-sync-vs-async.md	Sync vs Async	Blocking/non-blocking, why async is necessary
01-concurrency-models.md	Concurrency Models Overview	Multithreading, event loops, the actor model

01-async-patterns (Async Patterns)

File	Topic	Summary
00-callbacks.md	Callbacks	Callback hell, Node.js error-first pattern
01-promises.md	Promise	Promise chaining, Promise.all/race/allSettled
02-async-await.md	async/await	Implementations across languages, concurrent execution patterns
03-reactive-streams.md	Reactive Streams	RxJS, Observable, backpressure

02-error-handling (Error Handling)

File	Topic	Summary
00-exceptions.md	Exception Handling	try/catch/finally, exception hierarchies, checked/unchecked
01-result-type.md	Result Types	Rust Result, TypeScript never-throw, Go error
02-error-boundaries.md	Error Boundaries	React Error Boundary, global handlers
03-custom-errors.md	Custom Errors	Error design, error codes, domain errors

03-advanced (Advanced Topics)

File	Topic	Summary
00-event-loop.md	Event Loop	Deep dive into the Node.js/browser event loop
01-cancellation.md	Cancellation	AbortController, CancellationToken, timeouts
02-retry-and-backoff.md	Retry Strategies	Exponential backoff, circuit breakers
03-structured-concurrency.md	Structured Concurrency	Kotlin coroutines, Swift structured concurrency

04-practical (Practical)

File	Topic	Summary
00-api-error-design.md	API Error Design	HTTP status codes, error response design, RFC 7807
01-logging-and-monitoring.md	Logging and Monitoring	Structured logging, error tracking, Sentry
02-testing-async.md	Testing Async Code	Testing techniques for async code, mocks, timers
03-real-world-patterns.md	Real-World Patterns	Queue processing, WebSocket, file uploads

Learning Path

Fundamentals:  00-introduction -> 01-async-patterns (00 -> 02)
Error:         02-error-handling (00 -> 03)
Applied:       01-async-patterns/03 -> 03-advanced -> 04-practical

Related Skills

Maintainer

Gaku52 Core maintainer

Source details

Full Name: Gaku52/claude-code-skills
Branch: main
Path in repo: 02-programming/async-and-error-handling
License: MIT License
Topics: claude-code ai-coding developer-tools knowledge-base software-engineering learning-resources

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