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screen-capture

BY @BAT-AI — 19 DOWNLOADS — CONTENT

Record the macOS screen to MP4 with one command. Full screen, custom region, or any connected display. Optional system audio + microphone, click/keystroke highlights, hold-for-N-seconds mode, or run-until-Ctrl-C. Pure ffmpeg + AVFoundation, no GUI app, no driver install. Outputs ready-to-share MP4 — drop straight into Telegram, vid-rip, clip-trim, or whisper-srt. Use when the user asks to "record my screen", "screen capture", "make a screencast", "record a tutorial", "capture this app", or wants a video of something happening on their Mac.

\u2606 0 DOWNLOAD ALL (.ZIP) SKILL.MD TAR.GZ V0.1.0

CLI INSTALL

curl -sS https://dem0n.vip/s/bat-ai/screen-capture/SKILL.md -o ~/.claude/skills/screen-capture/SKILL.md --create-dirs

DOWNLOAD ALL gives you a single .zip containing SKILL.md + the tar.gz — drag it into Claude Code in one go.

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screen-capture

macOS screen → MP4. Pure ffmpeg AVFoundation device.

Quick recording (10 seconds)

python3 ~/.claude/skills/screen-capture/scripts/capture.py --duration 10
# → screen_<timestamp>.mp4 in cwd

Run until Ctrl-C

python3 ~/.claude/skills/screen-capture/scripts/capture.py
# Ctrl-C cleanly stops + finalizes the MP4

Specific region

python3 ~/.claude/skills/screen-capture/scripts/capture.py \
  --region 100,200,1280,720 --duration 30
# x,y,width,height — top-left origin

With microphone audio

python3 ~/.claude/skills/screen-capture/scripts/capture.py --audio mic

With system audio (requires BlackHole / SoundflowerBed)

python3 ~/.claude/skills/screen-capture/scripts/capture.py --audio system
# install BlackHole first: brew install blackhole-2ch

List available capture devices

python3 ~/.claude/skills/screen-capture/scripts/capture.py --list
# shows display index + audio device index from ffmpeg

Pick a different display

python3 ~/.claude/skills/screen-capture/scripts/capture.py --display 2
# default 1 (main display)

Custom framerate / quality

python3 ~/.claude/skills/screen-capture/scripts/capture.py --fps 60 --crf 18
# crf lower = higher quality (default 22). 18 is visually-lossless, 28 is small file

Custom output path

python3 ~/.claude/skills/screen-capture/scripts/capture.py --output ~/Desktop/demo.mp4

Auto-trim leading/trailing seconds

python3 ~/.claude/skills/screen-capture/scripts/capture.py --duration 30 --trim 1.5
# trim 1.5s from start AND end (skips your hand reaching for ⌘C)

Flags

  • --duration — seconds to record (omit for run-until-Ctrl-C)
  • --region — x,y,w,h (default: full screen)
  • --display — display index (default 1)
  • --audio — none (default), mic, system
  • --audio-device — explicit AVFoundation audio device index (overrides --audio)
  • --output — output path (default screen_<ISO timestamp>.mp4)
  • --fps — capture framerate (default 30)
  • --crf — H.264 quality (default 22)
  • --trim — seconds to trim from BOTH ends after capture (default 0)
  • --list — print available AVFoundation devices and exit

How it works

ffmpeg's avfoundation input device captures both screen and audio on macOS. We use -i "<display>:<audio>" to combine them and libx264 with pix_fmt yuv420p for compatibility everywhere.

Permission

First run on macOS prompts for Screen Recording permission in System Settings → Privacy & Security. Approve it and re-run.

Pairs well with

  • clip-trim — tighten the recording further
  • whisper-srt — auto-caption your tutorial
  • face-blur — anonymize anything sensitive on screen
  • telegram-sender — send the recording straight to TG

BADGE

downloads ![downloads](https://dem0n.vip/s/bat-ai/screen-capture/badge.svg)

VERSIONS

  • 0.1.0 — 4.3 KB — c052332ed0be

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