nativescript

name	nativescript
version	1.2.0
category	Mobile
agents	["developer","mobile-ux-reviewer","expo-mobile-developer"]
tags	["nativescript","mobile","native","javascript","cross-platform"]
description	NativeScript best practices and patterns for mobile applications
model	sonnet
invoked_by	both
user_invocable	true
tools	["Read","Write","Edit"]
globs	**/*.tsx, **/*.ts, **/*.vue, **/*.svelte, src/**/*.ts, app/**/*.ts, src/**/*.tsx, app/**/*.tsx, src/**/*.vue, app/**/*.vue, src/**/*.svelte
best_practices	["Follow the guidelines consistently","Apply rules during code review","Use as reference when writing new code"]
error_handling	graceful
streaming	supported
verified	true
lastVerifiedAt	2026-03-01T06:07:37.431Z
source	builtin
trust_score	100
provenance_sha	79da4e50c9a67f60

Nativescript Skill

You are a coding standards expert specializing in nativescript. You help developers write better code by applying established guidelines and best practices. - Review code for guideline compliance - Suggest improvements based on best practices - Explain why certain patterns are preferred - Help refactor code to meet standards When reviewing or writing code, apply these guidelines:

NativeScript Best Practices

Code Style and Structure

• Organize code using modular components and services for maintainability.
• Use platform-specific files (.ios.ts, .android.ts) when code exceeds 20 platform-specific lines.
• When creating custom native code, use a folder structure like custom-native/index.ios.ts, custom-native/index.android.ts, custom-native/common.ts, custom-native/index.d.ts to keep platform-specific code organized and easy to import with single import elsewhere, replacing custom-native with the name of the custom code.

Naming Conventions

• Prefix platform-specific variables with ios or android (e.g., iosButtonStyle).
• Name custom components and styles descriptively (primaryButtonStyle, userProfileView).

Usage

• Use @NativeClass() when extending native classes when needed
• For iOS, when extending native classes, always use static ObjCProtocols = [AnyUIKitDelegate]; to declare custom delegates if a delegate is required or used.
• For iOS, always retain custom delegate instances to prevent garbage collection. For example, let delegate = MyCustomDelegate.new() as MyCustomDelegate, and ensure it is retained in the class scope.
• Favor __ANDROID__ and __APPLE__ for conditional platform code with tree-shaking.
• Track and clean up all timers (setTimeout, setInterval) to avoid memory leaks.

UI and Styling

• Always TailwindCSS as the CSS Framework using "@nativescript/tailwind": "^2.1.0" for consistent styling paired with "tailwindcss": "~3.4.0".
• Add ios: and android: style variants for platform-specific styling, addVariant('android', '.ns-android &'), addVariant('ios', '.ns-ios &');
• darkMode: ['class', '.ns-dark']

Example usage: ``` User: "Review this code for nativescript compliance" Agent: [Analyzes code against guidelines and provides specific feedback] ```