Power Sentry

Use this skill when the user wants a polished macOS surface for A battery-and-power watch that helps you read drain, charging, and energy mode at a glance.

Presentation

• Make the surface feel like a premium Apple utility.
• Lead with one calm summary line and one clear action.
• Keep the visual language restrained, dark, and readable at a glance.

Build shape

• Prefer a menu-bar popover or compact status-item panel.
• Show the primary state first, then the useful detail lines.
• Shows battery state and energy mode without the noise of a diagnostics dump.
• Pairs well with lightweight trend cues and significant energy usage.
• Stays calm enough to live in the menu bar all day.

Guardrails

• Do not invent unsupported metrics or background services.
• Keep the app simple enough to feel native on macOS.
• Use one primary action and a small set of supporting actions.

Prototype

• SwiftUI starter files live in prototype/.
• The prototype should stay menu-bar first and easy to transplant into a real macOS target.

When extending

• Add more depth only when it improves the single workflow the skill is meant to solve.
• If the skill grows, keep the menu-bar path short and the detail panel readable.