react-native-skills

React Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native modules. Triggers on tasks involving React Native, Expo, mobile performance, or native platform APIs.

1.65x

Quality

81%

Does it follow best practices?

Impact

99%

1.65x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Evaluation results

100%

34%

Social Activity Feed

Performant virtualized list implementation

Criteria

Without context

With context

Uses list virtualizer

100%

getItemType provided

100%

No inline objects in renderItem

100%

Callbacks hoisted from renderItem

100%

List items receive primitives or stable refs

100%

Items are memo-wrapped

100%

No queries inside list items

100%

Data not mapped/filtered before list

100%

Compressed images in list

100%

Uses expo-image

100%

No && with falsy values

100%

47%

Animated Music Player Controls

GPU-accelerated animations with gesture handling

Criteria

Without context

With context

Uses GestureDetector for press

100%

runOnJS for JS callbacks

100%

No layout property animation

57%

100%

State as ground truth

16%

100%

Derives visuals via interpolate

10%

100%

useDerivedValue for computed values

100%

Uses .get() and .set()

100%

No scroll position in useState

100%

ProgressBar uses PanGesture

100%

animation-notes.md present

100%

97%

36%

User Profile Screen with Navigation

Native navigation and UI patterns

Criteria

Without context

With context

Native stack navigator

100%

Native tab navigator

100%

Uses expo-image

100%

Uses Pressable

100%

contentInsetAdjustmentBehavior

100%

Native options menu

80%

100%

Native modal for post detail

75%

100%

Galeria for avatar lightbox

100%

No && with falsy counts

100%

gap over margin for spacing

50%

boxShadow string syntax

100%

Compressed CDN images

100%

Repository: secondsky/claude-skills
Commit: 90d6bd7

Evaluated: 29 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Social Activity Feed Animated Music Player Controls User Profile Screen with Navigation

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