SKILL.md
agent-desktop
Use this skill when the task involves the host macOS desktop rather than repository files, shell output, or browser-only verification.
This project uses agent-desktop on the host. Prefer the built-in Computer sub-agent for these tasks instead of trying to drive the desktop with plain shell commands.
When to use it
- The user wants to inspect or interact with a native macOS application.
- The task needs app launch, window focus, accessibility snapshots, semantic element refs, clicks, typing, keypresses, or scrolling.
- A browser-only workflow is not enough, or the target is not a web page.
Requirements
agent-desktopmust be installed and its native binary available.- On macOS, the terminal app running
grokneeds Accessibility permission. - Refs from
computer_snapshotare only valid until the next snapshot.
Preferred flow
- Delegate to
taskwithagent: "computer"unless the current agent already has thecomputer_*tools and the task is tiny. - Use
computerlaunch,computerlistwindows, orcomputerfocus_windowto get the target app/window ready. - Start with
computer_snapshot. - Pick one ref-based action.
- After any UI transition, snapshot again before reusing refs.
Tool guidance
computersnapshot: primary observation tool; preferinteractiveonly.computer_click: userefvalues from the latest snapshot whenever possible.computer_type: requires a target ref and is preferred over coordinate typing.computer_press: use for shortcuts and special keys such asEnter,Tab,cmd+space, orcmd+k.computer_scroll: pass an element ref, not raw coordinates.computer_get: read text, value, bounds, role, or states from a ref.computer_screenshot: use for visual confirmation or when the accessibility tree is not enough.
Reliability rules
- Use a snapshot -> act -> snapshot loop.
- Prefer refs over coordinates.
- Refs go stale after the next snapshot; do not reuse them blindly.
- Keep actions reversible and low risk unless the user explicitly asked for something destructive.
- If the accessibility tree is poor or ambiguous, use
computer_screenshotfor confirmation and explain the limitation.
Blockers
Stop and report clearly if:
- Accessibility permission is missing.
agent-desktopis unavailable or its native binary is missing.- The target app/window cannot be found.
- Refs are stale or ambiguous after a UI transition.
- The requested action could be destructive and the user did not explicitly ask for it.