gqlgen's DefaultRecover prints the panic and debug.PrintStack() to stderr, so the log collector stores every stack line as a separate, level-less entry. Recover logs the panic as a single ERROR record via slog.Default() with panic, stack and path attributes, records it on the active span with status Error, and returns the generic "internal system error" without leaking the panic text. Install with srv.SetRecoverFunc(otelsetup.Recover).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01H6eVuR4Yt3m7TbDTDwyZJi
