DemoBitesA video update center for everything you ship.
Awareness Platform
Open source · bitesize
A skill for Claude Code. Ask for a demo and your agent films a narrated video you can post. Free, MIT, no account.
The skill
SKILL.md
# bitesize
30 to 45 seconds, 6 to 10 beats.
Narrate before the move.
Zoom on what you act on.
…one file of rules
Your coding agent
> Make a short narrated demo video…
installing playwright, chromium, ffmpeg
writing the beats · filming · voice
✓ ~/out/demo.mp4
A recording you can post
Make a short narrated demo video of Wikipedia (https://en.wikipedia.org). Show how someone looks up the article on Alan Turing and jumps straight to the section about the Turing test using the article's table of contents.
Save the finished video as ~/out/demo.mp4. For the voice, use ElevenLabs, the API key is in the ELEVENLABS_API_KEY environment variable.
You are working alone on a fresh Linux machine: install whatever you need, make every decision yourself, and do not stop until ~/out/demo.mp4 exists. Nobody will answer questions.
Two fresh machines, Claude Code with Claude Opus 5.5
The only difference is the skill
Without the skill
0:37 · 720p
With the skill
0:48 · 1080p
Click either one to watch it.
Story and pacing
30 to 45 seconds, 6 to 10 beats, every move narrated before it happens, in the product's own words.
Camera
Close or wide per beat, a zoom on what you act on, wide while scrolling, the cursor always in frame.
Cursor
Driven browsers draw none. The skill draws one sharp, in post, moving like a hand.
Voice and look
One line per beat, never overlapping, at a broadcast level. Captions. 1080p, framed in a browser window.
It also knows what to avoid: sentence fragments, a zoom on Cancel or Close, empty states, watching a page load, a voice talking over the wrong moment.
Overall, out of 10
5.0
Without
7.6
With bitesize
A separate model judged both videos with the labels shuffled, against a scorecard fixed before the runs. Only the bitesize video was rated “post as is”.
By category
One run of each, one task, one judge. A demonstration, not a benchmark.
Claude Code
> /plugin marketplace add demobites/bitesize
> /plugin install bitesize@bitesize
Or copy skills/bitesize into ~/.claude/skills. It is one SKILL.md; any agent that reads skill folders can take it as instructions, but we have only tested it with Claude Code.
What you need
bitesize
Rules only. Your agent builds the pipeline, films, and finishes the video on your machine. Free, and yours.
The Agentic Recorder
npx demobite record films with our scripts and hands the take to the Demo agent, which does the post production and publishes it everywhere your customers are. How it works
MIT · Claude Code · No account