Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011XhxckAYjGMLrLECWuKBzg
Countdown Video
Make a countdown that ends exactly when it should. The whole craft is one idea: derive the remaining time from the frame (or a monotonic timestamp), then format and animate that number — never count down with a setInterval. Covers livestream "starting soon" screens, launch and flash-sale countdowns, and looping backgrounds. For creators who need a timer that lands on zero on the exact frame.
When it activates
- "Make a countdown timer video" or "create a countdown animation."
- "Build a stream starting soon countdown" or "do an event/launch/sale countdown."
- "Animate a mm:ss or dd:hh:mm:ss timer."
- "Add digit roll/flip transitions to a counter" or "loop a countdown background."
Example prompts
- "Build a 10-minute 'be right back' livestream countdown."
- "Make a dd:hh:mm:ss launch countdown to a fixed target date."
- "Add flip transitions to an mm:ss timer that hits zero on the exact frame."
What's inside
SKILL.md— frame-accurate (drift-free) timers, time formatting, and a configurable duration prop.references/countdown-cookbook.md— recipes for common countdown scenarios.references/digit-flip.md— digit flip/roll transition techniques.
Part of Short-Form Video Skills · Built by iart.ai — the AI motion agent for editable, on-brand motion graphics.