skills/pika-extend-video/SKILL.md

---
name: pika-extend-video
description: Use when the user wants a clip to continue past its last frame — make it longer or show what happens next.
---

# Extend a video

1. Use the `extend_video` tool: it adds 5–8 s of new footage after the clip's last frame.
2. Get the clip as `start_video_url` (`ask_for_media` with `kind: "video"`, or an earlier output url). It must be an MP4 of at most 15 s and 50 MB; cut a longer one with `video_trim` first (see `pika-trim-video`) and pass its output url.
3. Set `duration` (5–8, default 5) and an optional `prompt` for what happens next (empty continues the scene). `generate_audio` defaults to true.
4. Call `extend_video` with a fresh `request_id` and no `max_credits`, then follow the quote's `next` (it applies the user's approval mode). On a yes, call it again with the same input and `request_id` and the agreed `max_credits`.
5. For a longer result, extend the output again, or join clips in a project (see `pika-short-film`).