split

Video splitter skill for Claude Code — split large video recordings into equal parts with no quality loss.

Features

• Auto part-count — scales by duration: up to 2 hours = 2 parts, up to 3 hours = 3 parts, etc.
• No re-encoding — uses ffmpeg stream copy (-c copy) for instant splitting with zero quality loss
• Idempotent — detects existing parts and skips re-splitting
• Auto-installs ffmpeg — if ffmpeg isn't found, installs it via winget (Windows) automatically

Installation

Clone into your Claude Code skills directory:

git clone https://github.com/balgaly/split.git ~/.claude/skills/split

Or manually: download the ZIP, extract the inner split/ folder into ~/.claude/skills/.

Usage

/split "path/to/video.mp4"

That's it. The skill handles everything: detecting ffmpeg, probing the video duration, calculating the optimal number of parts, splitting, and verifying the output.

How It Works

Video Duration	Parts
Up to 2 hours	2
Up to 3 hours	3
Up to 4 hours	4
...	...

Formula: parts = max(2, ceil(duration_in_hours))

Output files are named <original> - Part1.mp4, <original> - Part2.mp4, etc., placed alongside the original file.

Requirements

• ffmpeg on PATH, or Windows with winget for automatic installation
• Claude Code CLI

License

MIT