Install any skill in seconds. Free to start, no credit card required.
Get Started Free →Generate NSMenu and NSStatusItem configurations for macOS menu bar applications
.claude/skills/a5c-ai-appkit-menu-bar-builder/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-10 | ✗→✓ | ▲ Improved | -62% | 0% |
| case-14 | ✗→✓ | ▲ Improved | -36% | 0% |
| case-17 | ✗→✓ | ▲ Improved | -58% | 0% |
| case-19 | ✗→✓ | ▲ Improved | -70% | 0% |
| case-20 | ✗→✓ | ▲ Improved | -76% | 0% |
Generate NSMenu and NSStatusItem configurations for macOS menu bar applications. This skill creates menu bar apps with proper status items, menus, and SwiftUI integration.
json{ "type": "object", "properties": { "projectPath": { "type": "string" }, "appType": { "enum": ["menu-only", "popover", "window-and-menu"] }, "menuStructure": { "type": "array" }, "iconType": { "enum": ["system", "custom", "dynamic"] }, "useSwiftUI": { "type": "boolean", "default": true } }, "required": ["projectPath"] }
swiftimport AppKit import SwiftUI class StatusBarController { private var statusItem: NSStatusItem private var popover: NSPopover init() { statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength) popover = NSPopover() popover.contentSize = NSSize(width: 300, height: 400) popover.behavior = .transient popover.contentViewController = NSHostingController(rootView: ContentView()) if let button = statusItem.button { button.image = NSImage(systemSymbolName: "star.fill", accessibilityDescription: "App") button.action = #selector(togglePopover) button.target = self } } @objc func togglePopover() { if popover.isShown { popover.performClose(nil) } else if let button = statusItem.button { popover.show(relativeTo: button.bounds, of: button, preferredEdge: .minY) } } }
swiftui-view-generatormacos-entitlements-generator| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | pass→pass | 10,973 | 12,187 | +11% | 1 | 1 | 0% | 2,419 | 3,073 | +27% | 0 | 0 | — |
case-02 | pass→pass | 7,788 | 5,873 | -25% | 1 | 1 | 0% | 1,632 | 1,713 | +5% | 0 | 0 | — |
case-03 | pass→pass | 9,324 | 6,671 | -28% | 1 | 1 | 0% | 1,742 | 1,800 | +3% | 0 | 0 | — |
case-04 | pass→pass | 7,841 | 5,800 | -26% | 1 | 1 | 0% | 1,452 | 1,496 | +3% | 0 | 0 | — |
case-05 | pass→pass | 10,378 | 10,579 | +2% | 1 | 1 | 0% | 1,991 | 2,572 | +29% | 0 | 0 | — |
case-06 | pass→pass | 6,374 | 5,230 | -18% | 1 | 1 | 0% | 1,123 | 1,547 | +38% | 0 | 0 | — |
case-07 | pass→pass | 7,567 | 6,516 | -14% | 1 | 1 | 0% | 1,490 | 1,721 | +16% | 0 | 0 | — |
case-08 | pass→pass | 8,143 | 4,181 | -49% | 1 | 1 | 0% | 1,289 | 1,329 | +3% | 0 | 0 | — |
case-09 | pass→pass | 5,009 | 2,798 | -44% | 1 | 1 | 0% | 989 | 1,030 | +4% | 0 | 0 | — |
case-10 | fail→pass | 12,561 | 1,896 | -85% | 1 | 1 | 0% | 2,222 | 853 | -62% | 0 | 0 | — |
case-11 | pass→pass | 12,782 | 2,442 | -81% | 1 | 1 | 0% | 2,011 | 959 | -52% | 0 | 0 | — |
case-12 | fail→fail | 8,356 | 3,317 | -60% | 1 | 1 | 0% | 1,548 | 1,180 | -24% | 0 | 0 | — |
case-13 | pass→pass | 8,181 | 4,097 | -50% | 1 | 1 | 0% | 1,581 | 1,270 | -20% | 0 | 0 | — |
case-14 | fail→pass | 7,970 | 1,569 | -80% | 1 | 1 | 0% | 1,224 | 778 | -36% | 0 | 0 | — |
case-15 | pass→pass | 6,737 | 4,866 | -28% | 1 | 1 | 0% | 1,231 | 1,434 | +16% | 0 | 0 | — |
case-16 | pass→pass | 5,448 | 5,962 | +9% | 1 | 1 | 0% | 1,087 | 1,559 | +43% | 0 | 0 | — |
case-17 | fail→pass | 12,926 | 2,490 | -81% | 1 | 1 | 0% | 2,173 | 909 | -58% | 0 | 0 | — |
case-18 | pass→pass | 8,371 | 2,032 | -76% | 1 | 1 | 0% | 1,381 | 796 | -42% | 0 | 0 | — |
case-19 | fail→pass | 15,963 | 1,993 | -88% | 1 | 1 | 0% | 2,910 | 877 | -70% | 0 | 0 | — |
case-20 | fail→pass | 20,698 | 2,293 | -89% | 1 | 1 | 0% | 3,671 | 879 | -76% | 0 | 0 | — |
case-21 | fail→pass | 14,644 | 2,268 | -85% | 1 | 1 | 0% | 2,448 | 802 | -67% | 0 | 0 | — |
case-22 | pass→fail | 5,933 | 4,787 | -19% | 1 | 1 | 0% | 1,054 | 1,518 | +44% | 0 | 0 | — |
case-23 | pass→pass | 25,189 | 22,128 | -12% | 1 | 1 | 0% | 5,673 | 5,682 | +0% | 0 | 0 | — |
case-24 | pass→pass | 19,605 | 10,703 | -45% | 1 | 1 | 0% | 3,715 | 2,832 | -24% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 24 cases were attempted. The headline lift of +21 percentage points is the difference between those two pass rates over the 24 comparable cases. 1 case got worse with the skill loaded, and it is included in that figure.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.