Summary
This is a comprehensive reference for production error handling across TypeScript, Python, and Go. You get typed error hierarchies instead of string throwing, Result pattern implementations for expected failures, and proper error wrapping that preserves context up the stack. The TypeScript section includes Next.js API handlers and React error boundaries. Python covers FastAPI global handlers. Go shows sentinel errors and fmt.Errorf wrapping. The real value is in the opinionated principles: fail fast, never swallow silently, and separate user-facing messages from developer logs. Useful when you're setting up a new service and want consistent error contracts, or when debugging why errors disappear into the void.
Install to Claude Code
npx -y skills add affaan-m/everything-claude-code --skill error-handling --agent claude-codeInstalls into .claude/skills of the current project.
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →
Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
Files
SKILL.md
Select a file.
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
