Error Handling Review

A review skill for error handling robustness across the full stack.

What it covers

Error boundaries — React error boundaries, global exception handlers, process-level crash recovery
Structured logging — consistent error format, correlation IDs, severity levels, no sensitive data in logs
Graceful degradation — fallback UI states, partial failure handling, circuit breaker patterns
Error propagation — when to catch vs. rethrow, wrapping errors with context, typed error hierarchies
User communication — actionable error messages, retry affordances, distinguishing user errors from system errors
Async error handling — unhandled promise rejections, try/catch in async functions, timeout handling

When to use

Run this on any PR that adds new API calls, modifies error paths, or introduces failure-prone operations like file I/O, network requests, or database transactions.

Error Handling

Quality(11)

Don't expose internal errors or stack traces to users

Fail fast and handle errors at boundaries

Log Errors with Context

Automate Error Handling checks on every PR

Never silently swallow errors

Use Error Boundaries

Clean up resources in a finally block

Retry transient failures with exponential backoff

Narrow caught errors and rethrow what you can't handle

Preserve the original error cause and context

Handle async errors and promise rejections

Use Result-style returns for expected failures

Error Handling Review

What it covers

When to use