Individual skill

video-demo

Films a web app as narrated, zooming, cursor-driven demo videos with retina screenshots, either from a repo it builds and mocks or from a live URL as it is served. Use when the user asks for a demo video, product video, walkthrough, screencast, screen recording of an app or of a URL, hero or landing-page footage, app screenshots for a website, "show off this feature", "record a demo of <url>", or wants to add, re-film, re-narrate or fix a demo scene.

SKILL.md

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Source commit 767bfb818880c9f38bb02873d3d67141a3e62250

What was checked

Matches the observed repository HEAD: Yes
Scanner rules are current: Yes
Repository scan complete: Yes
Skill scan complete: Yes
Observed behavior: Network or broad shell
Last checked: Nov 11, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

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Repository context

Repository stars (not skill ratings): 340
Repository last updated: Sep 21, 2026
License: MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

engineering Derived category

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files

.gitattributesasset · 19 bytes
.github/video.svgasset · 3,829 bytes
.gitignoreasset · 383 bytes
LICENSEasset · 1,069 bytes
README.mddoc · 1,644 bytes
SKILL.mdcore · 8,449 bytes
engine/pin-build.mjsruns · 4,144 bytes
engine/playwright.demo.tsruns · 4,909 bytes
engine/run.mjsruns · 5,211 bytes
engine/serve.mjsruns · 3,760 bytes
engine/studio/actor.tsruns · 24,020 bytes
engine/studio/config.tsruns · 13,756 bytes
engine/studio/define.tsruns · 6,063 bytes
engine/studio/overlay.tsruns · 12,316 bytes
engine/studio/preview.tsruns · 7,200 bytes
engine/studio/ready.tsruns · 3,687 bytes
engine/studio/recorder.tsruns · 23,660 bytes
engine/studio/run-id.tsruns · 1,817 bytes
engine/studio/scene.tsruns · 6,180 bytes
engine/studio/stage.tsruns · 5,516 bytes
engine/studio/stitch.tsruns · 11,213 bytes
engine/studio/voice.tsruns · 15,044 bytes
examples/roadmap-search-poster.pngasset · 191,839 bytes
examples/roadmap-search.mp4asset · 2,460,206 bytes
package-lock.jsonasset · 2,234 bytes
package.jsonruns · 407 bytes
references/capture.mddoc · 10,945 bytes
references/config.mddoc · 14,619 bytes
references/mocking.mddoc · 8,998 bytes
references/narration.mddoc · 8,280 bytes
references/runs.mddoc · 15,038 bytes
references/scenes.mddoc · 10,599 bytes
references/troubleshooting.mddoc · 20,754 bytes
scripts/demoruns · 303 bytes
scripts/doctor.shruns · 4,715 bytes
scripts/gaps.mjsruns · 5,880 bytes
scripts/install-voice.shruns · 2,152 bytes
scripts/install.shruns · 4,013 bytes
scripts/probe-fps.mjsruns · 8,880 bytes
scripts/say.shruns · 2,313 bytes
scripts/scaffold.mjsruns · 11,666 bytes
template/demo/demo.config.tsruns · 6,177 bytes
template/demo/mock.tsruns · 4,171 bytes
template/demo/scenes/smoke.scene.tsruns · 1,942 bytes
template/demo/ui.tsruns · 1,159 bytes

Read excerpt


# Video demo

`scripts/demo` films a web app and writes `demo-out/` into that project's
workspace: per scene an mp4 with voice-over, a poster, retina stills, plus
`full-tour.mp4`, `manifest.json` and `index.html`. All local. The engine runs
from this skill; nothing is installed into the app being filmed.

## Non-negotiables

Each of these cost a run or a user's patience.

1. **A pinned build, never a dev server.** Its module graph belongs to whoever
   is editing source. Copy it somewhere private and verify its API base by
   reading the bundle. A URL with no repo behind it is `site` mode; a URL on