Nuxtjs Guideline: ErrorHandling — Use short statusMessage. Description: Keep statusMessage brief for security. Do: Short generic messages. Don't: Detailed error info in statusMessage. Good Example: createError({ statusCode: 400, statusMessage: 'Bad Request' }). Bad Example: createError({ statusMessage: 'Invalid user ID: 123' }). Severity: High. Docs: https://nuxt.com/docs/getting-started/error-handling.