Common Bugs in Windsurf-Generated Code

Windsurf's strength (generating well-structured multi-file projects) is also its weakness — the interactions between files can introduce subtle bugs that don't appear in isolation

Windsurf produces more structured code than most AI tools, but its bugs tend to be more subtle. Type mismatches between frontend and backend cause data to be silently wrong rather than crashing. Auth middleware has logical gaps — routes that look protected but can be bypassed with specific URL patterns. Circular dependencies between modules cause undefined values in specific import orders

Start by running your app through its complete user flow — sign up, use every feature, try edge cases like empty inputs and invalid data. Most Windsurf bugs surface when you go off the happy path. Use your browser's developer tools to watch for console errors, failed network requests, and unhandled promise rejections. TypeScript's strict mode will catch many issues at compile time if it's not already enabled.

For async errors, wrap every server-side operation in try/catch blocks and return meaningful error messages. For state bugs, consider whether the state belongs in the URL, in a server component, or in client state — Windsurf often defaults to client state when server state would be more appropriate. For data fetching issues, implement proper loading and error states for every data-dependent component.

The best way to prevent Windsurf bugs from reaching production: enable TypeScript strict mode, add ESLint rules for common mistakes (no-floating-promises, exhaustive-deps), and write tests for critical user flows. Even basic smoke tests catch the majority of issues.