Performance
Performance profiling and optimization
Builder Operating Model
by Coowoolf
Shift from rigid roles (PM, Designer, Engineer) towards a model where individuals use AI to bridge skill gaps, enabling smaller and flatter teams. Use in early-stage startups or innovation units where speed is critical.
yoitao-jimeng-sessionid
by yoitaoai
当需要获取或刷新即梦（jimeng.jianying.com）登录态中的 sessionid cookie 时使用。自动打开即梦网站检查登录状态，并在已登录时返回 sessionid 值给调用方。
web-performance
by AlexanderStephenThompson
Performance patterns for Apollo caching, Redis, and CloudFront optimization
rust-performance-best-practices
by mcart13
Expert-level Rust performance optimization guidelines for build profiles, allocation, synchronization, async/await, and I/O. This skill should be used when writing, reviewing, or optimizing Rust code for performance. Triggers on tasks involving slow Rust code, large binary size, long compile times, LTO configuration, release profile tuning, allocation reduction, clone avoidance, lock contention, BufReader/BufWriter, flamegraph analysis, async runtime issues, Tokio performance, spawn_blocking, parking_lot vs std sync, or any Rust performance investigation.
behavioral-profile-calibration
by starwreckntx
Calibrate behavioral profiles for consistent agent operation.
Hierarchy of Engagement
by Coowoolf
A three-level framework to gauge growth quality. Level 1: Core Action completion. Level 2: Retention via accruing benefits and mounting loss. Level 3: Self-perpetuating loops. Don't optimize for MAU—optimize for engaged users.
mobile-design
by liuchiawei
Mobile-first design and engineering doctrine for iOS and Android apps. Covers touch interaction, performance, platform conventions, offline behavior, and mobile-specific decision-making. Teaches principles and constraints, not fixed layouts. Use for React Native, Flutter, or native mobile apps.
nextjs-performance
by jovermier
Next.js performance optimizations including next/image, next/font, dynamic imports, caching strategies, and bundle optimization. Use when optimizing Next.js apps for speed or Core Web Vitals.
python-performance-profiler
by jorgealves
Identify CPU and memory bottlenecks in Python code using cProfile or memory_profiler. Use to optimize mission-critical Python services.
lib-slint-expert
by StrayDragon
Comprehensive Slint GUI development expert based on official source code. Covers Rust integration, component design, layouts, styling, animations, cross-platform deployment, and performance optimization. Use when working with Slint UI toolkit, building native GUI applications, or when mentioning Slint, GUI development, or Rust user interfaces. Built with official documentation and examples.
nft-standards
by Krosebrook
Implement NFT standards (ERC-721, ERC-1155) with proper metadata handling, minting strategies, and marketplace integration. Use when creating NFT contracts, building NFT marketplaces, or implementing digital asset systems.
memory-systems
by fefogarcia
Design and implement memory architectures for agent systems. Use when building agents that need to persist state across sessions, maintain entity consistency, or reason over structured knowledge.
plan-agile-planning
by kieutrongthien
Create epics, user stories, and estimate points for predictable delivery.
deno-debugger
by willkelly
Interactive debugger for Deno/TypeScript applications using the V8 Inspector Protocol. This skill should be used when investigating issues in Deno applications, including memory leaks, performance bottlenecks, race conditions, crashes, or any runtime behavior that requires step-by-step debugging, heap analysis, or CPU profiling. Provides CDP client tools, heap/CPU analyzers, and investigation tracking.
Hierarchy of Marketplaces
by Coowoolf
A roadmap for marketplace domination. Level 1: Focus on a "thimble" to maximize Happy GMV. Level 2: Tip the market via growth loops. Level 3: Dominate to capture economic rents. Not all GMV is equal.
threejs
by wollfoo
Build immersive 3D web experiences with Three.js - WebGL/WebGPU library for scenes, cameras, geometries, materials, lights, animations, loaders, post-processing, shaders (including node-based TSL), compute, physics, VR/XR, and advanced rendering. Use when creating 3D visualizations, games, interactive graphics, data viz, product configurators, architectural walkthroughs, or WebGL/WebGPU applications. Covers OrbitControls, GLTF/FBX loading, PBR materials, shadow mapping, post-processing effects (bloom, SSAO, SSR), custom shaders, instancing, LOD, animation systems, and WebXR. Sử dụng khi: đồ họa 3D, hoạt hình 3D, WebGL, game, visualization.
mobile-development
by wollfoo
Build modern mobile applications with React Native, Flutter, Swift/SwiftUI, and Kotlin/Jetpack Compose. Covers mobile-first design principles, performance optimization (battery, memory, network), offline-first architecture, platform-specific guidelines (iOS HIG, Material Design), testing strategies, security best practices, accessibility, app store deployment, and mobile development mindset. Use when building mobile apps, implementing mobile UX patterns, optimizing for mobile constraints, or making native vs cross-platform decisions. Sử dụng khi: ứng dụng di động, React Native, Flutter, iOS, Android.
go-performance
by jovermier
Go performance optimizations including memory allocation reduction, efficient string building, I/O operations, and resource pooling. Use when optimizing Go code for speed or memory efficiency.
code-reviewer
by liuchiawei
Elite code review expert specializing in modern AI-powered code
marketing-ideas
by liuchiawei
Provide proven marketing strategies and growth ideas for SaaS and software products, prioritized using a marketing feasibility scoring system.
gamification-triad
by Coowoolf
Use when designing retention mechanisms, habit loops, or auditing why users drop off despite engaging with core features, to structure gamification beyond superficial badges
data-python
by AlexanderStephenThompson
Python patterns for data processing - pandas, polars, pyspark
session-checkpoint
by guardzcom
This skill should be used when the user says "save checkpoint", "checkpoint", "continue", "resume", "resume work", "save my progress", "clear checkpoint", or "clear all checkpoints". Saves and resumes named session checkpoints to preserve progress across Claude Code sessions. Tracks accomplishments, failed approaches, and modified files. IMPORTANT: When the user says bare "continue" or "resume" at session start and MEMORY.md lists active checkpoints, always invoke this skill.
go-performance-best-practices
by mcart13
Go performance optimization guidelines for profiling, allocation, GC tuning, concurrency, PGO, and I/O. This skill should be used when writing, reviewing, or optimizing Go code for performance. Triggers on tasks involving slow services, high latency, high memory usage, memory leaks, goroutine leaks, GC pressure, CPU profiling, pprof analysis, allocation reduction, sync.Pool, mutex contention, HTTP client tuning, Profile-Guided Optimization, GOMEMLIMIT tuning, Go 1.24 features, Swiss Tables, or any Go performance investigation.