Content & Media

Optimizes and transforms images with Imgix CDN using URL-based API. Use when serving responsive images, applying real-time transformations, and optimizing delivery without processing overhead.

Svelte and SvelteKit development. Use when building Svelte components or SvelteKit applications.

User feedback patterns including success/error messages, loading states, confirmations, and progress indicators. Use when implementing notifications, toasts, or status updates. (project)

Common error patterns and troubleshooting guides for Kailash SDK including Nexus blocking issues, connection parameter errors, runtime execution errors, cycle convergence problems, missing .build() calls, parameter validation errors, and DataFlow template syntax errors. Use when encountering errors, debugging issues, or asking about 'error', 'troubleshooting', 'debugging', 'not working', 'hangs', 'timeout', 'validation error', 'connection error', 'runtime error', 'cycle not converging', 'missing build', or 'template syntax'.

Design and document statistical algorithms with pseudocode and complexity analysis

Guide for using direnv - a shell extension for loading directory-specific environment variables. Use when setting up project environments, creating .envrc files, configuring per-project environment variables, integrating with Python/Node/Ruby/Go layouts, working with Nix flakes, or troubleshooting environment loading issues on macOS and Linux.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

Build accessible user interfaces with semantic HTML, keyboard navigation, ARIA attributes, and screen reader support. Use this skill when creating or modifying UI components, form elements, interactive widgets, or page layouts. When working on files like *.tsx, *.jsx, *.vue, *.svelte, or HTML templates. When adding alt text to images, labels to form inputs, implementing keyboard navigation, managing focus states, ensuring proper color contrast, using semantic HTML elements (nav, main, button), or adding ARIA attributes for complex components.

Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks

Pixel-perfect UI cloning from screenshots or reference pages. Use when users ask to replicate, clone, or recreate a UI from an image, screenshot, or reference website. Triggers on keywords like "复刻", "clone", "replicate", "recreate UI", "像素级还原", "照着这个做", or when a screenshot is provided with implementation intent.

Guide for using the Neural DSP Quad Cortex device library in MMD files. Use when the user mentions Quad Cortex, QC, Neural DSP guitar processor, or needs help with preset loading, scene switching, expression control, or stomp automation for the Quad Cortex.

Implement mobile-first responsive designs using fluid layouts, relative units, responsive images, and touch-friendly interfaces. Use this skill when creating layouts that adapt across screen sizes, implementing breakpoints, or optimizing for mobile and tablet devices. When working on responsive component layouts, Tailwind responsive utility classes (sm:, md:, lg:, xl:), CSS media queries and breakpoints, fluid typography with clamp() or viewport units, responsive images with srcset and sizes attributes, mobile navigation menus and hamburger patterns, touch target sizing for mobile devices, responsive grid and flexbox layouts, container queries for component-based responsiveness, or viewport meta tags and mobile optimization.

Use when evaluating animation usability, conducting motion studies, or when researching how animation affects user perception and task completion.

Validate WebSocket and HTTP stream health for WaveCap-SDR channels. Use when debugging streaming issues, measuring latency or throughput, detecting packet loss, or verifying audio/spectrum delivery.

This skill should be used when the user asks to "write XCUITest", "create UI tests", "fix flaky tests", "query XCUIElements", "implement Page Object pattern", or mentions XCUITest, UI testing for iOS/macOS apps. Targets experienced iOS developers who want best practices and efficiency improvements.

Guide for using the Eventide H90 Harmonizer device library in MMD files. Use when the user mentions Eventide H90, H90 effects processor, H90 reverb/delay/modulation, or needs help with H90 program changes, HotSwitches, bypass control, expression automation, or firmware workarounds.

Extract panel schedule data from images using constraint-first approach

Download YouTube videos as audio files using yt-dlp

When user asks how to organize their memory or needs help with Phase 2, analyze semi-structured documents and recommend entity-based or topic-based directory structure

Elite multi-agent research orchestration utilizing ref MCP, exa MCP, brave-search MCP, and context7 with parallel execution of deep-research-agent, search-specialist, trend-researcher, and ux-researcher. Use for comprehensive research requiring maximum depth, breadth, and quality. Automatically invoked during /sc:research commands for world-class research capabilities surpassing any traditional deep research approach.