# Mobile Code Review

> Reviews mobile code for production bugs across Flutter, native Android, native iOS, React Native and Kotlin Multiplatform, including KMP source-set and host API contracts. Covers lifecycle, concurrency, UI state and native boundaries with file:line evidence. Use for a code review, PR, project audit, quality check or /reis-mobile:review.

- Skill: `wrsilva/mobile-code-review` (Agent Skill, multi-file: 10 files)
- Install (CLI): `npx skillmds@latest add wrsilva/mobile-code-review`
- Raw SKILL.md: https://api.skillmd.com/api/skills/wrsilva/mobile-code-review/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: wrsilva (https://skillmd.com/u/wrsilva)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/wrsilva/mobile-code-review

---


# Mobile Code Review

One review process for every mobile stack. This file holds how to review and what always matters; each platform's checklist lives in its reference.

## 1. Pick the checklists

Detect the stack first, then apply the platform checklist to the files in scope:

| Project | Read |
|---|---|
| Flutter / Dart | [references/flutter.md](references/flutter.md), which orders the Flutter checklists in `references/flutter/` |
| Native Android (Kotlin/Java), or the Android side of Kotlin Multiplatform | [references/android.md](references/android.md) |
| Native iOS (Swift/Objective-C) | [references/ios.md](references/ios.md) |
| React Native or Expo | [references/react-native.md](references/react-native.md) |
| Kotlin Multiplatform shared and target changes | [references/kotlin-multiplatform.md](references/kotlin-multiplatform.md) |

In a cross-platform app, native code in `android/`, `ios/` or native modules gets the native checklist too. Security findings follow `mobile-security` when it is loaded.

## 2. Scope

- **Changes (diff or pull request):** review what changed, reading the whole file when the hunk is not enough to understand it. New untracked files are not in the diff; read them.
- **Whole project:** start at the entry points (app startup, navigation, dependency setup), then the data layer, authentication and the most complex screens.

## 3. Evidence before findings

- Open the code and confirm every suspicion. A finding without evidence at `file:line` does not go in the report.
- Do not invent APIs, versions or lint rules. Check the lock files and build files (`pubspec.lock`, version catalog, `Package.resolved`, `package.json`) before claiming something is missing, deprecated or unavailable.
- Do not report style that a configured linter already enforces.
- When the project deliberately does something differently and it is coherent, say so instead of flagging it.

## 4. What always matters, on any stack

- **Lifecycle:** async work that outlives its screen; listeners, subscriptions, timers and controllers never released.
- **Threading:** I/O or heavy parsing on the main/UI thread; UI updated off it.
- **State:** impossible states that can be represented; loading and error handled; state lost on rotation, backgrounding or process death.
- **Network:** timeouts, retries without backoff, offline handling, unvalidated responses.
- **Credentials:** tokens in insecure storage, secrets in code or the bundle, sensitive data in logs.
- **Platform:** permissions requested without handling denial; manifest, `Info.plist`, entitlements or config changes that affect store publishing.
- **Tests:** new logic without tests when the project already has a suite.

## 5. Severity

Rank by real impact on users: crash or data loss, credential leak, store rejection, then noticeable degradation, then maintainability. Say why each finding matters, not only what rule it breaks.

## Report

Unless an agent defines its own format, answer with:

```markdown
## Summary
Stack, scope (diff or project), verdict: approve | approve-with-changes | request-changes.

## Critical
## Bugs
## Architecture
## Security
## Performance
## Maintainability

## Suggested changes
Prioritized list. For each item: file:line, problem, why it matters, fix.
```

Write "No findings." in a section with nothing to report.