Mobile Code Review Pro

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name: mobile-code-review-pro description: Expert-level code review for React Native and native iOS/Android applications. Use when reviewing mobile codebases for architecture, performance, security, or preparing for acquisition due diligence. Includes migration assessment for React Native → Native.

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Mobile Code Review Pro - React Native & Native iOS/Android

Expert-level code review for mobile applications. Based on extensive experience managing large-scale mobile codebases and successful migrations.

What This Skill Does

Comprehensive mobile code review covering:

1. Architecture Analysis - Scalability, maintainability, patterns 2. Performance Audit - Startup time, memory, battery, network 3. Code Quality Review - Best practices, tech debt, refactoring opportunities 4. Security Assessment - Data protection, API security, vulnerabilities 5. Migration Readiness - React Native → Native evaluation 6. Acquisition Prep - Code health for due diligence

Who This Is For

Startups preparing for acquisition

Companies with React Native performance issues

Teams considering React Native → Native migration

Engineering leaders wanting code quality audit

Companies scaling to 1M+ users

Expected Outcomes

Based on real code review experience:

Performance improvements: 30-50% faster app

Crash reduction: Achieve 99.9% crash-free rate

Code quality: Reduce tech debt by 40-60%

Migration roadmap: Clear path if rewriting

Acquisition-ready: Clean code for due diligence

Skill Capabilities

When you invoke this skill, it will:

✅ Analyze codebase architecture and patterns ✅ Identify performance bottlenecks ✅ Detect security vulnerabilities ✅ Evaluate React Native → Native migration viability ✅ Create prioritized improvement roadmap ✅ Estimate effort and ROI for changes

How to Use This Skill

Quick Review (1-2 days)

"Perform quick code review for [app name]"

Delivers:

Top 10 issues

Quick wins

High-level recommendations

Full Audit (1-2 weeks)

"Perform comprehensive mobile code audit"

Delivers:

Complete architecture analysis

Performance profiling

Security assessment

Detailed roadmap

Migration Assessment (3-5 days)

"Assess React Native to Native migration viability"

Delivers:

Migration cost/benefit analysis

Timeline estimate

Risk assessment

Go/no-go recommendation

Acquisition Prep (1 week)

"Prepare codebase for acquisition due diligence"

Delivers:

Code health report

Tech debt inventory

Remediation plan

Documentation for buyers

Review Categories

1. Architecture Review

What We Check:

Code organization and modularity

Design patterns used

Dependency management

State management approach

Network layer architecture

Database/caching strategy

Common Issues Found:

God objects/classes

Tight coupling

Poor separation of concerns

Inconsistent patterns

2. Performance Audit

What We Measure:

App startup time

Screen rendering performance

Memory usage patterns

Battery consumption

Network efficiency

Bundle size

Tools Used:

Instruments (iOS)

Android Profiler

Flipper

Custom profiling scripts

Benchmarks:

Startup: < 2 seconds

Frame rate: 60 FPS consistent

Memory: < 150MB typical usage

Battery: Minimal background drain

3. Code Quality Assessment

What We Review:

Code style consistency

Test coverage (% and quality)

Documentation completeness

Error handling patterns

Logging practices

Code duplication

Metrics:

Cyclomatic complexity

Code coverage %

Technical debt ratio

Maintainability index

4. Security Review

What We Audit:

Data encryption (at rest, in transit)

API key management

Authentication/authorization

Sensitive data handling

Third-party library vulnerabilities

Platform-specific security issues

Common Vulnerabilities:

Hardcoded secrets

Insecure data storage

Man-in-the-middle risks

Insufficient input validation

5. React Native Specific

Bridge Performance:

JS ↔ Native communication overhead

Serialization bottlenecks

Native module efficiency

Bundle Analysis:

Bundle size optimization

Lazy loading opportunities

Dead code elimination

Migration Viability:

Feature complexity mapping

Team capability assessment

ROI calculation

6. Native Platform Review

iOS Specific:

Swift/Objective-C best practices

Memory management (ARC)

Auto Layout performance

Background task handling

App Store compliance

Android Specific:

Kotlin/Java patterns

Memory leak detection

Battery optimization

Fragment management

Play Store compliance

Deliverables

Code Review Report

Executive Summary (2-3 pages)

Overall health score (A-F)

Top 5 critical issues

Quick wins (can fix in 1-2 sprints)

Strategic recommendations

Detailed Findings (10-20 pages)

Category-by-category analysis

Specific code examples

Severity ratings (Critical/High/Medium/Low)

Remediation approaches

Roadmap (5-10 pages)

Prioritized action items

Effort estimates

Timeline recommendations

Resource requirements

Technical Artifacts

Spreadsheet: All issues catalogued with metadata

Scripts: Automated checks for ongoing monitoring

Dashboards: Performance metrics baseline

Documentation: Best practices guide for team

Templates Included

1. Code Review Checklist (templates/code-review-checklist.md) - Platform-specific checks - Severity rating guide - Best practice references

2. Performance Profiling Guide - Tools setup - Metrics to track - Benchmark targets

3. Security Audit Template - Vulnerability categories - Testing procedures - Remediation checklist

4. Migration Assessment Framework - Cost model - Timeline estimator - Risk matrix

5. Report Template - Executive summary format - Finding documentation - Roadmap structure

Requirements

Access to codebase (GitHub/GitLab/Bitbucket)

Build environment access (for profiling)

Business context (scale, goals, constraints)

Team context (size, skills, timeline)

Advanced Features

For complex scenarios:

Performance Regression Testing:

"Set up automated performance monitoring"

Continuous Code Quality:

"Implement CI/CD code quality gates"

Migration Execution Support:

"Guide React Native to Native migration execution"

Version History

v1.0 (Feb 2026) - Initial release

- Full code review capabilities - Migration assessment - Acquisition prep

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*This skill is based on extensive experience managing large-scale mobile codebases, including complete rewrites and migrations, with successful outcomes for high-traffic consumer applications.*