Five formats, one call
The single most tedious part of posting everywhere — re-exporting each aspect ratio — collapses into one chat message and one tool call.
One video, every platform, one message
Stop re-exporting the same short five times. Give Claude one finished video and it produces a clean mp4 for each platform's aspect ratio, plus a map telling you which file goes where — TikTok, Shorts, Reels, YouTube, Instagram feed.
You type
Repurpose my latest video for TikTok, YouTube Shorts and Instagram.
…and Claude drives the whole pipeline below on your machine.
Why this beats a blank script box
Smart reframing, not dumb cropping
Each aspect is reframed to keep the subject in frame, so the 16:9 and 1:1 versions don't cut off heads or captions.
Know exactly what goes where
The platform→file map removes the 'which mp4 was the TikTok one?' confusion — every file is labeled for its destination.
How Claude repurposes one video for all platforms
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Pick the source video
list_videos finds your finished render (or you point Claude at a specific one).
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Produce one file per aspect ratio
repurpose_for_platforms generates a distinct mp4 for each target platform's aspect — 9:16, 16:9, 1:1 — reframing intelligently rather than naive-cropping.
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Get a platform→file map
You get back a tidy bundle plus a map: this file → TikTok, this file → YouTube, this file → Instagram feed. No guessing which export is which.
MCP tools it calls:
list_videosrepurpose_for_platformsexport_video_bundle Connect it in 4 steps
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Install ViralMint
Download the free, open-source desktop app (macOS / Windows / Linux) and open it. It bundles the whole pipeline — yt-dlp, Whisper, FFmpeg — and the MCP server.
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Open the in-app MCP page
It shows your loopback endpoint and a bearer token, with a ready-to-paste Claude Code command and a JSON config snippet for Cursor / Claude Desktop.
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Add the server to your agent
Paste the command. Your client loads ViralMint's tools, the built-in workflow recipes (this skill is one) and read-only resources like your balance and recent videos.
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Ask for the outcome
Type the prompt above. Claude runs the recipe end-to-end against the local app and hands you the finished mp4 — no clicking through the UI.
ViralMint skills vs typical agent video tools
| What matters | Typical paid agent tools | ViralMint |
|---|---|---|
| Agent tools / skills | Behind a paid tier | Free & open-source (AGPL) |
| Where it runs | Their cloud | Your machine (loopback MCP) |
| Your footage & data | Uploaded to their servers | Stays local — only AI calls leave |
| Pricing | Monthly subscription | Prepaid, pay-per-render at ~cost |
| Output watermark | On free tiers | Never |
| Script quality | Prompt → generic script | Grounded in real breakouts + your data |
highlighted column = clearer fit.
Frequently asked
Which platforms and aspects are covered?
9:16 for TikTok, YouTube Shorts and Reels; 16:9 for YouTube; 1:1 for Instagram feed. You get one mp4 per distinct aspect with a map of which platform uses which.
Does it just crop, or actually reframe?
It reframes to keep the subject and captions in frame for each aspect, rather than naively cropping the center out of a vertical video.
Can I run this right after generating a short?
Yes — the Topic → Viral Short skill offers this as its final step, so you can go from topic to a full multi-platform set in one conversation.
What does it cost?
Repurposing is a light local/export operation — far cheaper than a fresh render — billed prepaid with no subscription.
Make repurpose everywhere from a chat
Install the free ViralMint desktop app, connect it to Claude Code or Cursor, and run this skill — no subscription, no watermark, your footage never leaves your machine.