What you need
A Typecast API account is all you need to get started.
1. Give the skill to your agent
Open the section below, copy the complete skill text, and send it to your AI coding agent. The text is self-contained and does not require access to a separate repository.
---
name: create-typecast-shorts
description: Create a captioned 9:16 short or reel from one rights-cleared local video or image using Typecast narration, timestamp output, and ffmpeg. Use when a user asks to make a short-form video, reel, vertical video, narrated social clip, or Typecast-powered short from media they own or are authorized to use.
---
# Create Typecast Shorts
Create one 1080×1920 MP4 from a local video or image, Typecast narration, and timestamp-aligned subtitles.
## Boundaries
...2. Create it through conversation
Describe the short you want, then change any of these details as you talk with your agent.
| What you can change | Try saying |
|---|---|
| Script and message | “Open with a stronger hook” or “focus on one key idea.” |
| Voice and tone | “Try a brighter, more energetic voice” or “read it more calmly.” |
| Length and pacing | “Keep it under 30 seconds” or “make the pacing a little faster.” |
| Captions and visuals | “Split the captions into shorter lines” or “keep the main subject in frame.” |
Keep talking with your agent and refine each part until the short feels right.
3. Review and approve
The agent asks you to approve:
- The script and Typecast voice
- A 15-second preview with narration and captions
- The final render
After approval, you receive a 1080×1920 MP4 along with the script, narration, and SRT caption files.
What the agent handles
Checks and installs the cast CLI and ffmpeg after asking for approval.
Prepares the script and generates Typecast narration securely.
Creates timestamp-aligned SRT captions from the same narration.
Renders a preview and final 9:16 MP4 for your review.