Design

This skill should be used when the user asks to 'create an article', 'add a blog post', 'modify frontmatter', 'add a category', or 'update content schema'. Provides guidance for MDX articles, content-collections, and static content data in content/articles/*.mdx, content/data/*.ts, content-collections.ts.

Use when building Python web APIs, database-backed applications, or backend services. Covers FastAPI, SQLAlchemy (async), PostgreSQL, Alembic migrations, and performance patterns. Triggers on API endpoint creation, database models, query optimization, or migration planning. Extends python-development skill.

Create parametric 3D models using OpenSCAD, a script-based solid CAD modeler. Use when the user asks to create 3D printable objects, parametric designs, mechanical parts, CAD models, or requests .scad files. OpenSCAD uses constructive solid geometry (CSG) and extrusion of 2D shapes to create 3D models through code.

Self-improving AI system for distressed property lead generation. Monitors performance, spawns specialized skills to fix bottlenecks, runs A/B tests, and continuously optimizes lead conversion. Use when building or optimizing lead generation workflows, analyzing pipeline metrics, or creating automated lead intelligence systems.

Build web components using Custom Elements v1 API with Declarative Shadow DOM, attribute-driven state, handleEvent pattern, and zero DOM selection. Use when creating custom elements, extending built-in HTML elements, or implementing component-based architecture. NO querySelector, NO innerHTML, NO external libraries - pure web platform APIs only.

Skill for building Claude Code plugin commands.

Enable Claude to orchestrate complex tasks by spawning and managing specialized sub-agents for parallel or sequential decomposition. Use when tasks have clear independent subtasks, require specialized approaches for different components, benefit from parallel processing, need fault isolation, or involve complex state management across multiple steps. Best for data pipelines, code analysis workflows, content creation pipelines, and multi-stage processing tasks.

Detects suspicious use of assertions for security checks that can be disabled in production builds. Use when analyzing assertion usage, security checks, or investigating assert-related vulnerabilities.

UI/UX 设计师专家，精通界面设计、交互设计、用户体验和设计系统

Validate Agent Skills against best practices and specification requirements. Use when reviewing skills, before publishing, or to audit existing skills.

Technical leadership guidance for architecture decisions, team scaling, tech debt, and engineering strategy. Use PROACTIVELY for technology evaluation, engineering metrics, team structure, or strategic technical decisions.

Comprehensive shadcn/ui component library with theming, customization patterns, and accessibility. Use when building modern React UIs with Tailwind CSS. IMPORTANT - Always use MCP server tools first when available.

Expert guidance for writing proper Svelte 5 code with runes-based reactivity. Use when writing Svelte 5 components, migrating from Svelte 4, or troubleshooting Svelte 5 syntax. Covers $state, $derived, $effect, $props, $bindable, event handling, snippets, TypeScript integration, and common pitfalls.

Use for Phase 6 of Course OS - designing detailed lesson content including examples, case studies, activities, and resources following Merrill's First Principles. Triggers on "/course-content", "design lessons", "create examples", "plan activities", or after completing Phase 5.

Portable tmux-based workflow to drive one or multiple long-running Codex CLI “workers” from another process (e.g. Claude CLI) by (1) starting/reusing a tmux session running `codex`, (2) injecting prompts into the Codex pane via `tmux send-keys`/buffer paste, and (3) polling the worker’s Codex JSONL session logs to extract the next assistant reply. Each worker runs with an isolated `CODEX_HOME` (default `~/.codex-workers/<worker_id>`) to prevent log cross-talk when multiple Codex workers run concurrently. Use when you need to submit/wait/read Codex replies in tmux, manage multiple Codex workers, or troubleshoot the tmux worker and log binding.

Evidence-based diagnostic and treatment guidance for Feline Infectious Peritonitis (FIP). Use this skill when working with veterinary cases involving FIP or potential FIP, including (1) Differential diagnosis when clinical signs suggest FIP, (2) Interpreting diagnostic test results and determining next steps, (3) Treatment planning with GS-441524 or other antivirals, (4) Monitoring treatment response and adjusting protocols, (5) Managing relapses or treatment failures, (6) Client communication about prognosis and treatment options, (7) Prevention strategies and multi-cat household management, (8) Cattery breeding decisions after FIP cases, (9) Any questions about FIP diagnosis, treatment, prevention, or management. Also use when encountering mentions of FCoV, feline coronavirus, effusive/non-effusive disease forms, GS-441524, or related veterinary scenarios.

Vaporwave + glassomorphic UI designer for photo/memory apps. Masters SwiftUI Material effects, neon pastels, frosted glass blur, retro-futuristic design. Expert in 2025 UI trends (glassmorphism, neubrutalism, Y2K), iOS HIG, dark mode, accessibility, Metal shaders. Activate on 'vaporwave', 'glassmorphism', 'SwiftUI design', 'frosted glass', 'neon aesthetic', 'retro-futuristic', 'Y2K design'. NOT for backend/API (use backend-architect), Windows 3.1 retro (use windows-3-1-web-designer), generic web (use web-design-expert), non-photo apps (use native-app-designer).

Create GitHub gists quickly from files, code snippets, or text content. Use when the user wants to share code via GitHub gists or export content to gist format.

Vite lightning-fast build tool with instant HMR, ESM-first architecture, and zero-config setup for modern web development

Create complete Claude Code agents for the Traycer enforcement framework. This skill should be used when creating new agents or updating existing agents. Creates all agent components including system prompt, hooks, skills, commands, scripts, and reference docs. Also updates coordination documents that list available agents. Based on Anthropic's official agent development best practices.