gluestack-ui-v4:performance

gluestack-ui-v4:performance is a skill for Claude Code, Codex from gluestack/agent-skills. It costs 40 tokens per session (3,670 once invoked), scanned A, original, MIT.

A set of guidelines for improving gluestack-ui v4 applications built with React Native, including apps that run on phones and the web. It covers component choices, TypeScript, memoization, animations, and platform compatibility.

In plain words
What is it for?
Use it when choosing gluestack components, sharing screens across mobile and web, reducing unnecessary updates, or implementing animations.
Why use it?
It helps avoid code that works on iOS or Android but breaks on the web, as well as common causes of slow rendering.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it when choosing gluestack components, sharing screens across mobile and web, reducing unnecessary updates, or implementing animations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gluestack/agent-skills/performance
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add gluestack/agent-skills --skill performance
Clone the repo
git clone --depth 1 https://github.com/gluestack/agent-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for gluestack-ui-v4:performance

README.md
[![agentmods](https://agentmods.dev/badge/skills/gluestack/agent-skills/performance/github.svg)](https://agentmods.dev/skills/gluestack/agent-skills/performance)
Your own site
<a href="https://agentmods.dev/skills/gluestack/agent-skills/performance"><img src="https://agentmods.dev/badge/skills/gluestack/agent-skills/performance/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for gluestack-ui-v4:performance

Your own site · 80×15
<a href="https://agentmods.dev/skills/gluestack/agent-skills/performance"><img src="https://agentmods.dev/badge/skills/gluestack/agent-skills/performance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,670 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.03670
Opus 5.5 $0.00016 $0.01468
Sonnet 5.5 $0.00008 $0.00734
Haiku 4.5 $0.00004 $0.00367

Measured 1mo ago against content hash b94d8616710d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gluestack-ui-v4:performance scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/gluestack-ui-v4/performance/SKILL.md · 553 lines

How it starts

The opening of the file, as written. The whole thing — 553 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Gluestack UI v4 - Performance & Cross-Platform

This sub-skill focuses on performance optimization, cross-platform compatibility, and React Native best practices for gluestack-ui v4.

Rule 12: Cross-Platform Rendering (Native & Web)

Gluestack UI v4 components are designed to work seamlessly on both React Native (iOS/Android) and Web platforms. Always use Gluestack wrapper components instead of direct React Native imports to ensure cross-platform compatibility.

Critical Rule: Always Use Gluestack Wrappers

NEVER import components directly from react-native when a Gluestack wrapper exists. Gluestack wrappers handle platform-specific differences automatically.

Platform-Specific Component Mapping

React Native Import Gluestack Wrapper Notes
KeyboardAvoidingView from react-native KeyboardAvoidingView from @/components/ui/keyboard-avoiding-view Required for web compatibility
Platform from react-native Use only when absolutely necessary Prefer Gluestack's built-in platform handling
View, Text, etc. Box, Text from @/components/ui/* Always use Gluestack components

Correct Pattern: Cross-Platform Components

// ✅ CORRECT: Using Gluestack KeyboardAvoidingView wrapper
import { KeyboardAvoidingView } from '@/components/ui/keyboard-avoiding-view';
import { Platform } from 'react-native'; // Only when needed for platform-specific logic

<KeyboardAvoidingView
  behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
  className="flex-1"
>
  <ScrollView>
    {/* Content */}
  </ScrollView>
</KeyboardAvoidingView>

Incorrect Pattern: Direct React Native Imports

// ❌ INCORRECT: Direct import from react-native
import { KeyboardAvoidingView, Platform } from 'react-native';

<KeyboardAvoidingView behavior={Platform.OS === 'ios' ? 'padding' : 'height'}>
  {/* This may not work correctly on web */}
</KeyboardAvoidingView>

Web-Specific Considerations

Read the full file on GitHub · 553 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 553 lines · 40 tokens per session scan A b94d8616710d

Subscribe to this mod's changes

gluestack-ui-v4:performance is a skill published in the GitHub repository gluestack/agent-skills (1 stars, last pushed 3mo ago), licensed MIT. It adds 40 tokens to every session and 3,670 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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