# AlexAnsart

> Open-source publisher. Listings imported from github.com/AlexAnsart — credited to the original author with their license.

- **Listings:** 5
- **Total installs:** 0
- **Profile:** https://agentstack.voostack.com/s/alexansart
- **Website:** https://github.com/AlexAnsart

## Published listings

- [Sync Narration](https://agentstack.voostack.com/l/skill-alexansart-demo-studio-sync-narration) — Skill · Free · security-reviewed — `agentstack add skill-alexansart-demo-studio-sync-narration`
  Syncs a separately-recorded narration track onto a silent screen recording — pads audio with calculated pauses to match on-screen pacing (no voice during cursor movement), then burns styled captions. Use when the user provides a silent screen-recorded video plus a narration .mp3 and asks to sync/combine/caption them.
- [Produce Video](https://agentstack.voostack.com/l/skill-alexansart-demo-studio-produce-video) — Skill · Free · security-reviewed — `agentstack add skill-alexansart-demo-studio-produce-video`
  End-to-end production of a narrated, captioned demo video for any web app — chains narration generation (narrate), silent Playwright recording (film-demo, smart zooms + guardrails), and narration sync with burned captions (sync-narration) into one final .mp4. Use when the user asks to produce, make, or film a demo/product/tutorial video end to end, "with voice and subtitles", or "from A to Z".
- [Film Demo](https://agentstack.voostack.com/l/skill-alexansart-demo-studio-film-demo) — Skill · Free · security-reviewed — `agentstack add skill-alexansart-demo-studio-film-demo`
  Records a polished, silent screen-capture demo video of any web app from a plain-English beat script — Playwright capture with a real cursor, human-speed typing, explicit zone-based zooms (focus/wide) with guaranteed containment, deterministic guardrails (cursor offscreen, zoom too long, inactivity), annotated frame inspection, post-record speed-ups, styled frame, and a verify/iterate loop. Use w…
- [Demo Setup](https://agentstack.voostack.com/l/skill-alexansart-demo-studio-demo-setup) — Skill · Free · security-reviewed — `agentstack add skill-alexansart-demo-studio-demo-setup`
  One-time setup that analyzes the current project and configures it to use the film-demo / narrate / sync-narration / produce-video skills — detects the dev server and framework, asks only when necessary, generates demo.config.json and .env entries, vendors the recording engine and project helpers, and scaffolds a first demo from reference patterns. Use when the user asks to set up, configure, or…
- [Narrate](https://agentstack.voostack.com/l/skill-alexansart-demo-studio-narrate) — Skill · Free · security-reviewed — `agentstack add skill-alexansart-demo-studio-narrate`
  Generates a narration voiceover .mp3 for a demo video script using the ElevenLabs API — configurable voice/model/stability, deterministic output filename. Use when the user asks to add a voiceover, narration, or spoken audio to a demo/tutorial video, or names ElevenLabs explicitly.

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Seller on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Install any with `agentstack add <slug>`.