Summary
Built on macOS ScreenCaptureKit to grab screenshots and recordings at the window level, something ffmpeg can't do natively. You get precise app or window targeting, GIF conversion with two-pass palettes, before/after diffs, and evidence bundles ready to attach to a PR. The CLI ships with agent mode flags (JSON output, no prompts, field filtering) and covers edge cases like OCR extraction, VHS terminal recordings, and Remotion renders. Requires Screen Recording permission on first run. If you need to capture "just that window" or build visual test evidence without wrestling with display IDs, this does it. macOS only, Go install, works from the terminal or through Claude.
Install to Claude Code
npx -y skills add mvanhorn/printing-press-library --skill pp-agent-capture --agent claude-codeInstalls into .claude/skills of the current project.
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Files
SKILL.md
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Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
