Macos screen recorder
Skill Ghosteken/agent-harness/archive/skills-community/macos-screen-recorder
Production-grade engineering skills and specialist agent personas for AI coding assistants. Orchestrates the full SDLC, from spec to ship, with structured verification gates, anti-rationalization checks, and senior-level engineering discipline.
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macOS screen recorder that captures the main display PLUS system audio via ScreenCaptureKit — no BlackHole/loopback driver, no sudo, just the standard Screen Recording permission. CLI-driven; fills the headless-screen-recording-with-system-sound gap QuickTime and `screencapture -v` can't.
The file declares its own license as MIT. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.
SKILL.md
2.6 KB, as published. Nobody here has run it
When to Use
Use when you need to script a screen recording WITH system sound on macOS from the CLI (demos, captures, voice-demo recording) — the case QuickTime and screencapture -v can't cover without a virtual audio device.
Source: connerkward/macos-screen-recorder-system-audio (MIT).
macos-screen-recorder (sck-record)
sck-record.swift → compiled sck-record (binary gitignored; built by setup-machine, or
swiftc -O sck-record.swift -o sck-record). Records the main display + system audio via
ScreenCaptureKit.
./sck-record <out.mp4> <seconds>
The one true differentiator: system audio from the CLI with zero install — no BlackHole / loopback virtual device, no sudo; only the standard Screen Recording permission (granted once to whatever app shells out). It is not a general "better than OBS/Screen Studio" tool — it fills exactly the headless-CLI-with-system-audio gap.
sck-record is the raw capture primitive — it records, nothing more. To polish a
recording afterward (idle speed-up, auto-zoom, keystroke chips, smoothed cursor,
vertical export), pair it with
screenstudio-alternative-skill:
record with sck-record --no-cursor <out.mp4> <seconds>, then run its post-production
pass on the resulting mp4. (Auto-zoom and keystroke overlays additionally need an
input-event log captured during recording, which that skill supplies; sck-record's
pixels alone cover idle speed-up, cursor smoothing, and vertical export.)
Limitations
- macOS only; it depends on ScreenCaptureKit and the user's Screen Recording permission.
- The recorder captures raw display and system audio but does not provide editing, auto-zoom, captions, or social-format polish by itself.
- Input-event overlays require a separate event log captured during recording; pixels alone cannot reconstruct keystrokes or precise click metadata.