Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/sonichi/sutando/screen-recordnpx skills add sonichi/sutando --skill screen-recordgit clone --depth 1 https://github.com/sonichi/sutandoWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00058 | $0.00413 |
| Opus 5 | $0.00029 | $0.00206 |
| Sonnet 5 | $0.00012 | $0.00083 |
| Haiku 4.5 | $0.00006 | $0.00041 |
Grade A, and why
screen-record scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Screen Record
Start and stop screen recording using ffmpeg.
Usage: /screen-record start or /screen-record stop
When to use
The user asks to record the screen to a video over time (demo, bug repro, walkthrough). For a single still frame, use the screen-capture path instead.
On activation
If argument is start:
python3 skills/screen-record/scripts/record.py start
If argument is stop:
python3 skills/screen-record/scripts/record.py stop
Output & failure modes
- Done = a
.movwritten byrecord.pyto/tmp/sutando-recording-<ts>.mov(it prints the path on stop). startwhile already recording → the script no-ops and returns the existing pid + path; a stale PID file (previous run crashed) is detected and cleared, so it self-heals rather than wedging;stopwith nothing running → no-op.- ffmpeg missing at
/opt/homebrew/bin/ffmpeg(hardcoded in three places —record.py:59device-listing,:152the recording call,:204the audio check. Apple Silicon brew prefix; on an Intel Macbrew install ffmpeglands in/usr/localand the skill stays broken until all three are fixed — patching only the recording call still fails at device-listing before recording starts). No frames / black video → the invoking terminal lacks macOS Screen Recording permission (same grant the screen-capture server uses).
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 33 lines · 58 tokens per session scan A 3d502c9ac9fe
screen-record is a skill published in the GitHub repository sonichi/sutando (389 stars, last pushed 3d ago), licensed MIT. It adds 58 tokens to every session and 413 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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