macOS Performance

macOS and SwiftUI application performance assessment: launch-time ("quick bounce") first-frame readiness, main-actor I/O, Swift strict concurrency adoption, view-model/business-logic separation, and steady-state render budget.

version from plugin.json: 1.0.0
license from plugin.json: Apache-2.0
author from plugin.json: ghchinoy · https://github.com/ghchinoy
repository from plugin.json: https://github.com/ghchinoy/agent-skills
keywords plugin keywords, from plugin.json: macos
swiftui
performance
concurrency
swift
launch
profiling
name from plugin.json: macos-performance
conformance derived from plugin.json $schema: Targets Agent Plugins 1.0.0.
source derived: plugins/macos-performance/plugin.json

Skills

Quick Bounce Assessorquick-bounce-assessorAssesses macOS/SwiftUI app launch and runtime performance. Evaluates first-frame ('quick bounce') readiness by finding synchronous main-actor I/O on the launch path, Swift strict-concurrency posture, view-model vs business-logic separation, and steady-state render budget (high-frequency @Published timers, per-body allocations). Produces a PASS/WARNING/FAIL report with file:line evidence and phased fixes. Use when reviewing a macOS/SwiftUI or AppKit app for launch responsiveness, concurrency safety, or UI smoothness.