⚡

// Skill profile

watchOS Code Review

Name: watchOS Code Review
Author: anderskev

name: watchos-code-review

by anderskev · published 2026-04-01

日历管理开发工具

Total installs

Stars

★ 0

Last updated

2026-04

// Install command

$ claw add gh:anderskev/anderskev-watchos-code-review

View on GitHub

// Full documentation

---

name: watchos-code-review

description: Reviews watchOS code for app lifecycle, complications (ClockKit/WidgetKit), WatchConnectivity, and performance constraints. Use when reviewing code with import WatchKit, WKExtension, WKApplicationDelegate, WCSession, or watchOS-specific patterns.

---

# watchOS Code Review

Quick Reference

| Issue Type | Reference |

|------------|-----------|

| App lifecycle, scenes, background modes, extended runtime | [references/lifecycle.md](references/lifecycle.md) |

| ClockKit, WidgetKit, timeline providers, Smart Stack | [references/complications.md](references/complications.md) |

| WCSession, message passing, file transfer, reachability | [references/connectivity.md](references/connectivity.md) |

| Memory limits, background refresh, battery optimization | [references/performance.md](references/performance.md) |

Review Checklist

[ ] SwiftUI App protocol used with `@WKApplicationDelegateAdaptor` for lifecycle events

[ ] `scenePhase` read from root view (not sheets/modals where it's always `.active`)

[ ] `WKExtendedRuntimeSession` started only while app is active (not from background)

[ ] Workout sessions recovered in `applicationDidFinishLaunching` (not just delegate)

[ ] Background tasks scheduled at least 5 minutes apart; next scheduled before completing current

[ ] `URLSessionDownloadTask` (not `DataTask`) used for background network requests

[ ] WidgetKit used instead of ClockKit for watchOS 9+ complications

[ ] Timeline includes future entries (not just current state); gaps avoided

[ ] `TimelineEntryRelevance` implemented for Smart Stack prioritization

[ ] WCSession delegate set before `activate()`; singleton pattern used

[ ] `isReachable` checked before `sendMessage`; `transferUserInfo` for critical data

[ ] Received files moved synchronously before delegate callback returns

When to Load References

Reviewing app lifecycle, background modes, or extended sessions -> lifecycle.md

Reviewing complications, widgets, or timeline providers -> complications.md

Reviewing WCSession, iPhone-Watch communication -> connectivity.md

Reviewing memory, battery, or performance issues -> performance.md

Review Questions

1. Is the app using modern SwiftUI lifecycle with delegate adaptor?

2. Are background tasks completing properly (calling `setTaskCompletedWithSnapshot`)?

3. Is UI update frequency reduced when `isLuminanceReduced` is true?

4. Are WatchConnectivity delegate callbacks dispatching to main thread?

5. Is `TabView` nested within another `TabView`? (Memory leak on watchOS)

// Comments

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日历管理数据处理

1 installs★ 0