Consistency Checker

// New code in UserProfile.tsx
function formatDate(date: Date): string {
  const day = date.getDate().toString().padStart(2, '0')
  const month = (date.getMonth() + 1).toString().padStart(2, '0')
  const year = date.getFullYear()
  return `${day}/${month}/${year}`
}

Reinventing formatDate — you have this in lib/date-utils.ts

// Use existing utility
import { formatDate } from '@/lib/date-utils'

// Already handles localization, timezones, and edge cases
formatDate(date, 'short')

Reuse existing utility that handles edge cases

// Inconsistent error handling
try {
  const data = await fetchUser(id)
  return data
} catch (e) {
  console.error(e)
  return null
}

Different error handling than rest of codebase

// Matches team pattern
import { withErrorHandler } from '@/lib/api'

const data = await withErrorHandler(
  () => fetchUser(id),
  { fallback: null, context: 'UserProfile' }
)

Use team's established error handling pattern

// Custom loading state
{isLoading ? (
  <div className="flex items-center justify-center p-8">
    <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary" />
  </div>
) : (
  <UserList users={users} />
)}

Custom spinner — you have LoadingState component

// Use shared component
import { LoadingState } from '@/components/ui/loading-state'

<LoadingState isLoading={isLoading}>
  <UserList users={users} />
</LoadingState>

Reuse shared component for consistent UX