A finished subtitle disappears too quickly, breaks awkwardly, or covers the exact visual detail that matters. A checker sells video agencies rule-based timing and readability notes per user. The revealing edge case shows when intentional timing is better than automatic shortening.
Your one-shot prompt
Build “Video Subtitle Checker for Agencies” as a complete, lean, locally runnable focused application that the intended customer can understand and test immediately with a realistic example. Act as product developer, UX writer, QA owner, privacy-conscious implementer, and pragmatic launch advisor.
+ 522 words · builds you: App · Product page · Automation · Checklist · Tests
