Use when c systems programming including file I/O, processes, signals, and system calls for low-level system interaction.

Use when verifying C3 documentation quality - checks methodology compliance (layer rules, structure, diagrams) and implementation conformance (docs vs code drift)

cache-health

Caching patterns, TTL management, eviction policies for Redis implementations. Use when implementing cache-aside, write-through, write-back patterns, TTL management, or cache invalidation strategies.

caddy-https-troubleshoot

caddy

Guidance for building and training with the Caffe deep learning framework on CIFAR-10 dataset. This skill applies when tasks involve compiling Caffe from source, training convolutional neural networks on image classification datasets, or working with legacy deep learning frameworks that have compatibility issues with modern systems.

Interact with the Cal.com API v2 to manage scheduling, bookings, event types, availability, and calendars. Use this skill when building integrations that need to create or manage bookings, check availability, configure event types, or sync calendars with Cal.com's scheduling infrastructure.

Calendly scheduling automation using REST API v2 for managing event types, availability, bookings, webhooks, and scheduling workflows

Practice wellness with Calm - track meditation and sleep sessions, view progress, and access content library

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Screen US stocks using William O'Neil's CANSLIM growth stock methodology. Use when user requests CANSLIM stock screening, growth stock analysis, momentum stock identification, or wants to find stocks with strong earnings and price momentum following O'Neil's investment system.

Foundational Canvas type definitions and language support patterns. Use when working with Canvas types, schemas, or language configuration.

Accessibility guide for Capacitor apps covering screen readers, semantic HTML, focus management, and WCAG compliance. Use this skill when users need to make their app accessible.

Complete guide to implementing deep links and universal links in Capacitor apps. Covers iOS Universal Links, Android App Links, custom URL schemes, and navigation handling. Use this skill when users need to open their app from links.

Guide to handling keyboard in Capacitor apps including visibility detection, accessory bar, scroll behavior, and input focus. Use this skill when users have keyboard-related issues.

Guide to building offline-first Capacitor apps with data synchronization, caching strategies, and conflict resolution. Covers SQLite, service workers, and network detection. Use this skill when users need their app to work without internet.

Complete guide to implementing push notifications in Capacitor apps using Firebase Cloud Messaging (FCM) and Apple Push Notification Service (APNs). Covers setup, handling, and best practices. Use this skill when users need to add push notifications.

Guide to configuring splash screens in Capacitor apps including asset generation, animation, and programmatic control. Use this skill when users need to customize their app launch experience.

Turns mobile captures into actionable tasks in your Ready queue. Everything captured has

Competency frameworks, level expectations (Junior to Staff+), and career progression paths for software engineers. Use when navigating promotions, understanding level requirements, or planning career advancement.

Internal vs external career growth paths, goal setting, career maintenance, and long-term planning for software engineers. Use when deciding between internal promotion vs external job search, setting career goals, or planning long-term career trajectory.

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Normalized schema requires explicit cascade deletes. Convex has no foreign key constraints or automatic cascades - must handle manually.

Analyzes legal case facts and identifies viable legal theories, causes of action, and evidentiary requirements. Use when conducting case intake, strategy development, or initial legal analysis.

Game building mechanics case studies and decision frameworks. Use when designing building systems, evaluating trade-offs, or learning from existing games. Reference-only skill with detailed analysis of Fortnite, Rust, Valheim, Minecraft, No Man's Sky, and Satisfactory building systems.

Guidance for developing and editing legal casebooks

Analyze catenary and lazy wave riser configurations for static shape,

Enables Claude to browse restaurants and track orders on Caviar (DoorDash)

Use when designing AskUserQuestion tool calls - covers schema constraints, effectiveness patterns, and known issues.

**Before using this skill:** Check `.state` file — if missing or `last_evaluated` > 7 days ago, warn user and research current CC issues before proceeding.

CC-DevFlow workflow router and agent recommender. Use when starting requirements, running flow commands, or asking about devflow processes.

Comprehensive overview of Claude Code features, architecture, and capabilities. Learn about hooks, skills, commands, permissions, and best practices for configuring Claude Code as your AI development assistant. This is about the TOOL itself, not project code.

Automatically discover container and Docker skills when working with Docker. Activates for containers development tasks.

Create world-class, accessible, responsive interfaces with sophisticated interactive elements including chat, terminals, code display, and streaming content. Use when building user interfaces that need professional polish and developer-focused features.

Expert skill for analyzing Claude Code primitive structures (skills, commands, hooks) in projects. Performs deep quality analysis, detects naming conflicts, validates best practices, identifies missing configurations, and provides actionable recommendations for improving Claude Code setup. This is about analyzing the TOOL configuration itself, not project code.

MCP server discovery, configuration, and troubleshooting for CCPM workflows.

CCXT cryptocurrency exchange library for C# and .NET developers. Covers both REST API (standard) and WebSocket API (real-time). Helps install CCXT, connect to exchanges, fetch market data, place orders, stream live tickers/orderbooks, handle authentication, and manage errors in .NET projects. Use when working with crypto exchanges in C# applications, trading systems, or financial software. Supports .NET Standard 2.0+.

CCXT cryptocurrency exchange library for Go developers. Covers both REST API (standard) and WebSocket API (real-time). Helps install CCXT, connect to exchanges, fetch market data, place orders, stream live tickers/orderbooks, handle authentication, and manage errors in Go projects. Use when working with crypto exchanges in Go applications, microservices, or trading systems.

CCXT cryptocurrency exchange library for PHP developers. Covers both REST API (standard) and WebSocket API (real-time). Helps install CCXT, connect to exchanges, fetch market data, place orders, stream live tickers/orderbooks, handle authentication, and manage errors in PHP 8.1+. Use when working with crypto exchanges in PHP projects, trading bots, or web applications. Supports both sync and async (ReactPHP) usage.

CCXT cryptocurrency exchange library for TypeScript and JavaScript developers (Node.js and browser). Covers both REST API (standard) and WebSocket API (real-time). Helps install CCXT, connect to exchanges, fetch market data, place orders, stream live tickers/orderbooks, handle authentication, and manage errors. Use when working with crypto exchanges in TypeScript/JavaScript projects, trading bots, arbitrage systems, or portfolio management tools. Includes both REST and WebSocket examples.

CDK8s for type-safe Kubernetes manifests using Python. Use when building complex K8s applications programmatically, generating manifests from code, creating reusable infrastructure patterns, or managing multi-environment deployments.

Infer ligand-receptor interactions and cell-cell communication networks from single-cell RNA-seq data using the LIANA+ framework. Identifies potential signaling events between cell types based on gene expression patterns and curated ligand-receptor interaction databases.

Build a **reflection system**, not a task manager. This is a private, single-user operating system for executives that combines thoughtful frameworks with coaching-style prompts.

Automate TLS certificates, rotation, and mTLS configuration.

$ARGUMENTS CesiumJS 관련 질문에 답변하고 구현을 도와드립니다.

Docker container orchestration for CFN Loop - spawning, coordination, logging, wave execution. Use when running CFN Loop agents in Docker containers, executing waves of parallel agents, coordinating containerized agents via Redis, or managing Docker-based agent lifecycle.

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Build and execute multi-step prompt chains for complex tasks