Best mobile performance skills for Claude Code, Codex and other agents.

A prioritized rule set for React Native and Expo apps covering list performance, animation, navigation, UI patterns, state, rendering, monorepos and configuration.

vercel-labs/openreview

A skill your agent uses to push frequently-changing Jetpack Compose state reads (scroll position, animation values, drag offsets) out of the Composition phase and down into Layout or Draw using…

rosuH/EasyWatermark

Analyze Chrome, Chromium, Electron, React DevTools, or Perfetto-compatible JSON traces and audit user-reported profiling findings without loading large artifacts into context; prove…

tutti-os/tutti

A skill your agent uses to diagnose Jetpack Compose stability problems by enabling and reading the Compose Compiler Reports (classes.txt, composables.txt, composables.csv, module.json).

rosuH/EasyWatermark

A skill your agent uses to generate and measure Jetpack Compose Baseline Profiles end-to-end with the AGP 8.2+ Baseline Profile Generator module and the Macrobenchmark harness.

rosuH/EasyWatermark

Firmware crash analysis, stack trace decoder, and register dump interpreter for ESP32/ARM/AVR platforms.

FastLED/FastLED

A skill your agent uses when the user reports jank, dropped frames, janky scrolling, slow click or typing response, poor INP, slow LCP, layout shifts (CLS), unresponsive pages, or asks to debug…

millionco/debug-agent

A skill your agent uses when implementing or reviewing code on interaction, render, event, polling, synchronization, list-processing, store-selector, cache, indexing, or high-volume data paths; when…

openchamber/openchamber

Measure React Native performance on-device for stream-chat-react-native — Hermes CPU profiles, deterministic call/listener counting, component render profiling, and memory/jank capture.

GetStream/stream-chat-react-native

Optimizes a React Native app by profiling first to find real bottlenecks, then sweeping for mechanical issues.

bbplayer-app/BBPlayer

Decode and analyze an ESP32 dongle crash report (uploaded .coredump).

haumacher/phoneblock

Diagnoses exception root causes from stack traces, logs, call-chain dumps, and debug output using the CodexQA CLI for structured repo analysis.

openqa-cn/codexqa

Analyzes Perfetto traces to find the root cause of latency, memory, or jank issues in Android apps.

jameshnsears/QuoteUnquote

Use this when speeding up a web or Electron app's load or input.

jjcm/makefaster

Provides React Native performance optimization guidelines for FPS, TTI, bundle size, memory leaks, re-renders, and animations.

callstackincubator/agent-skills

Download updated expected app size files from Azure DevOps CI artifacts for the current branch.

dotnet/macios

Get a page into Lighthouse's green zone on desktop and mobile, for people AND for the robot form crawlers get — build it, audit all four categories (Performance, Accessibility, Best Practices, SEO)…

textura-agency/next16-claude-starter

A skill your agent uses when profiling or optimizing a PixiJS v8 app for FPS, draw calls, or GPU memory.

pixijs/pixijs-skills

Audits Jetpack Compose screens for performance problems, from recomposition scope and stability to lazy list keys and effects, and proposes minimal fixes with ways to verify them.

ModinMobileSTS/SlayTheAmethystModded

Diagnose and fix Kototoro Browse/Explore page content source scrolling jank when many sources exist.

Kototoro-app/Kototoro

Animation skill for Motion (prev Framer Motion) and CSS animation.

softmaple/softmaple

Automatically use for Android runtime performance investigations involving Perfetto/System Trace, jank, latency, startup, CPU scheduling, blocking, memory, I/O, IPC, graphics, power, or measured…

LUC4N3X/Levyra-deepsound

Stack Trace Crash Analysis for dd-trace-dotnet. An agent skill from DataDog/dd-trace-dotnet.

DataDog/dd-trace-dotnet

Analyzes Meta VR and Horizon OS VR performance using Perfetto traces — frame timing, CPU/GPU bottlenecks, render pass analysis.

meta-quest/agentic-tools

A skill your agent uses to set up a CI gate that fails the build when Compose stability silently regresses, using the skydoves/compose-stability-analyzer Gradle plugin (primary) or the…

rosuH/EasyWatermark

Builds React Native and Expo apps for iOS and Android: Expo Router navigation, FlatList tuning, platform-specific code and build error recovery.

Jeffallan/claude-skills

Builds Swift apps for Apple platforms with SwiftUI, protocol-oriented design, async/await, actors and Sendable checks, verified with swift build and swift test.

Jeffallan/claude-skills

Systematic methodology for diagnosing GnollHack crash reports from the Sentry MCP server.

hyvanmielenpelit/GnollHack

A skill your agent uses to fix scroll jank, lost item state, and broken animateItem() animations in LazyColumn, LazyRow, LazyVerticalGrid, and LazyHorizontalGrid.

rosuH/EasyWatermark

A skill your agent uses to ensure Jetpack Compose performance numbers reflect production reality by measuring against a release variant with R8 enabled, Live Literals disabled, and Compose Compiler…

rosuH/EasyWatermark

Guides React Native and Expo work for cross-platform apps: Expo Router navigation, fast lists, Reanimated animation, platform-specific code and project structure.

tech-leads-club/agent-skills

Performance optimization guidelines for React/React Native applications.

Sidiora-Labs/centra-llm-agents

The method for profiling and optimizing anything whose success is a measured cost — frame the phase and metric, choose an instrument that can actually see the cost, label the waste, falsify the…

happier-dev/happier

A skill your agent uses when targeting Android/iOS — export and signing, permissions, plugins, in-app purchases, ads, app lifecycle, device features, and mobile performance

jame581/GodotPrompter

Manages Android performance profiling and debugging. An agent skill from arindamxd/camerax-android.

arindamxd/camerax-android

A skill your agent uses when a Unity 6.3 game targets Android or iOS: phone frame budget, overheating after 20 minutes, 'my game stutters on phones', ASTC or ETC2 textures, audio import, URP mobile…

scenario-labs/skills

A skill your agent uses when profiling or optimizing a PixiJS v8 app for FPS, draw calls, or GPU memory.

netaart/cohub

Diagnose a concrete rendered hitch or stutter. An agent skill from TheGoat395/Codex-Skills.

TheGoat395/Codex-Skills

Measures and optimizes the size of Flutter application bundles for deployment.

btwld/superdeck

A skill your agent uses when the user asks to debug, diagnose, or fix an ADVPL/TLPP error on TOTVS Protheus -- compilation errors (syntax, missing includes, undeclared variables), runtime failures…

thalysjuvenal/advpl-specialist

Prevent layout/transition/reflow thrash in JS-driven CSS animations.

swyxio/skills

A skill your agent uses when the user asks to "build a mobile app", "scaffold React Native project", "create SwiftUI views", "set up Jetpack Compose", "optimize mobile performance", "configure Expo…

borghei/Claude-Skills

Structured UI design review — existing code (React/JSX, CSS, Tailwind) and, when behaviour matters, the running app in a real browser — reported as a prioritised Before / After / Why table.

pproenca/dot-skills

SwiftUI layout beyond stacks — the Layout protocol (when custom layout beats GeometryReader), Grid vs lazy grids, custom containers with sections and container values, and lazy-stack/ScrollView…

rshankras/claude-code-apple-skills

Linux kernel debugging skill for kgdb, kdb, ftrace, kprobes, and crash analysis.

mohitmishra786/low-level-dev-skills

Advanced kernel debugging skill for ftrace, trace-cmd, perf, kprobes, kgdb, and crash analysis.

mohitmishra786/low-level-dev-skills

Optimize Flutter widget rebuilds, memory usage, rendering, and scrolling performance.

HoangNguyen0403/agent-skills-standard