// 17 tips in Debugging
Finding and fixing issues faster with Claude Code.
Hand Claude your heap snapshots or server code and ask it to trace memory leaks — it spots missing event listener cleanup, unbounded caches, and stream lifecycle bugs that are easy to miss in code review.
Ask Claude to audit your UI components for WCAG accessibility issues — it catches semantic problems, missing ARIA attributes, and keyboard navigation gaps that automated tools miss.
The --debug flag enables verbose logging for Claude Code, and an optional category filter like "api,mcp" lets you narrow output to exactly the subsystem you need to investigate.
Distributed tracing turns mysterious slowdowns into pinpointed bottlenecks. Ask Claude to wire up OpenTelemetry across your application without digging through the docs.
Printf debugging doesn't belong in production. Claude can wire up structured JSON logging with request context, log levels, and external service routing in minutes.
Share your server config or middleware code and ask Claude to identify missing or misconfigured security headers and provide drop-in fixes.
Paste your Rust compiler errors into Claude and get a clear explanation of the ownership issue plus a corrected version of your code.
Ask Claude to write a git bisect test script, then paste the identified bad commit's diff for an instant explanation of what broke and why.
Paste your React components and ask Claude to audit every useEffect dependency array — it catches stale closures and fixes the root cause, not just the lint warning.
Paste your controllers or service methods and ask Claude to spot N+1 query problems and fix them with proper eager loading.
Feed your application logs to Claude via stdin and get an instant summary of errors, anomalies, and patterns worth investigating.
CORS errors are cryptic and inconsistent across browsers — paste your headers and config and let Claude pinpoint exactly what's wrong.