mex
A worn Soviet carpet and one small old brick sharing a quiet Estonian room

Edit video
with Claude.

mex gives your agent composable commands to understand and produce video, locally on your Mac.

Paste into Claude Code or Codex

Install and set up mex, a local media toolbox you can use to inspect, edit, and verify the user’s video and audio.

brew tap taivop/mex
brew trust taivop/mex
brew install taivop/mex/mex
mex setup

After setup, ask the user to give you a video so you can showcase your abilities on it.

  • Apple Silicon
  • macOS 14 Sonoma or laterreleased

Just ask.

Claude uses mex to inspect the footage, make the decisions, and return the finished file.

You

make this into vertical video, add subtitles

source · 1920 × 1080 · 7.53 s

Ask for more.

Transcription, reframing, audio cleanup, subject isolation, scene detection, and color grading—all local.

01 / 06

Transcribe every word

Local speech recognition returns time-aligned words, confidence, and utterances.

Source — USGS physical scientist speaking to camera

0106

Claude directs

Claude decides what the edit needs. mex runs precise local commands and returns files it can inspect.

calls toolsfiles + reports

mex

Understand

  • probe
  • transcribe
  • scene detect
  • silence detect
speech analyzecolor analyze

Create

  • edit cut
  • video reframe
  • captions render
  • audio clean
background blurcolor gradevideo compositecards overlayaudio normalize

Inspect / deliver

  • frames contact-sheet
  • verify media
  • export
  • proxy create
frames extractestimaterecap buildproject artifactstranscript validate

All tools run locally on your Mac

A worn household carpet curling across a quiet grey floor

Paste into Claude Code or Codex

Install and set up mex, a local media toolbox you can use to inspect, edit, and verify the user’s video and audio.

brew tap taivop/mex
brew trust taivop/mex
brew install taivop/mex/mex
mex setup

After setup, ask the user to give you a video so you can showcase your abilities on it.