Error Handling

This is a well-structured reference for production error handling patterns across TypeScript, Python, and Go. You get typed error hierarchies, the Result pattern for no-throw code paths, API error handlers for Next.js and FastAPI, React error boundaries, and Go's sentinel error wrapping. The examples are opinionated in the right ways: fail fast, never swallow errors silently, separate user-facing messages from logs, and treat error codes as part of your API contract. Activate this when you're adding retry logic, reviewing endpoints for missing error cases, or debugging cascading failures. The cross-language coverage is genuinely useful if you work in polyglot codebases or want consistent patterns across services.

Install to Claude Code

npx -y skills add affaan-m/ecc --skill error-handling --agent claude-code