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.
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npx -y skills add affaan-m/everything-claude-code --skill error-handling --agent claude-codeInstalls into .claude/skills of the current project.
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Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
