# smitmartijn

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

- **Listings:** 3
- **Total installs:** 0
- **Profile:** https://agentstack.voostack.com/s/smitmartijn
- **Website:** https://github.com/smitmartijn

## Published listings

- [Transcribe Video](https://agentstack.voostack.com/l/skill-smitmartijn-claude-skills-transcribe-video) — Skill · Free · security-reviewed — `agentstack add skill-smitmartijn-claude-skills-transcribe-video`
  Transcribe a video or audio file to a plain-text .txt file. Use when the user says "transcribe this", "make a transcript", "get the text from this video", "what was said in this", or any variant of "give me the transcription". Fast (hardware decode + whisper) — runs in seconds on M-series Macs.
- [Redash](https://agentstack.voostack.com/l/skill-smitmartijn-claude-skills-redash) — Skill · Free · security-reviewed — `agentstack add skill-smitmartijn-claude-skills-redash`
  Create, run, and manage Redash queries, visualizations, and dashboards through the Redash REST API. Use when the user says "create a Redash query", "build a Redash dashboard", "run this SQL in Redash", "add a chart to a dashboard", "what tables are in my data source", or any variant of working with Redash programmatically.
- [Thumbnail Video](https://agentstack.voostack.com/l/skill-smitmartijn-claude-skills-thumbnail-video) — Skill · Free · security-reviewed — `agentstack add skill-smitmartijn-claude-skills-thumbnail-video`
  Generate YouTube thumbnails (1280×720 JPEG) from a video. Picks frames via scene detection, overlays caption text using HTML/CSS rendered by headless Chrome, outputs multiple variants for YouTube A/B testing. Use when the user says "make a thumbnail", "generate thumbnails", "thumbnail for this video", or any variant of "youtube thumbnail".

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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>`.