Build, audit, replace, and install native macOS app icons from raster source artwork. Use when Codex needs to review an icon candidate against Apple macOS icon expectations, remove background halos with the standard macOS rounded-rectangle enclosure, preserve…
Engineer, debug, package, and harden native macOS menu-bar / background-daemon apps built with Swift 6, SwiftUI MenuBarExtra, and SwiftPM (no Xcode project), running as an LSUIElement agent. Focuses on the runtime-only bug classes that a green `swift build`…
Design and verify an HMAC-SHA256 signed command envelope — nonce + TTL/expiry + replay cache + receiver-side allowlist — for a downlink control channel such as a cloud→Mac actuation path over MQTT or WebSocket. Use when designing or reviewing a coach→device…