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vm-lab

Parallels macOS VM lab: GUI automation, Peekaboo, TCC, Ghostty.

skills/vm-lab/SKILL.md

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# VM Lab

Use this when the task needs a clean macOS VM to test GUI automation, TCC prompts, screenshot capture, clicking, typing, performance, or "two-way validation" of Peekaboo-like tools.

Core idea: run the tool under test inside the guest, but verify it from outside the guest with Parallels screenshots and host-side observations. Do not close apps you do not own.

## Safety Rules

- Only task-owned clones are disposable. Preserve source/golden snapshots, recovery VMs, and other tasks' VMs; never reset, revert, or delete their snapshots.
- Never access inherited guest credentials or bypass login/startup security to bootstrap a clone.
- Never print secrets. If `op` is needed, follow the 1Password skill and run it only inside `tmux`.
- Prefer fresh app windows you create yourself: TextEdit, a local HTML test page, or a small test app.
- Limit host writes to task-owned temporary diagnostics and explicitly authorized clone recovery. Never change global Bash/Codex settings for a lab workaround.
- For git repos inside the VM, use HTTPS remotes and normal branch discipline.