Design

Advanced iOS development and production deployment automation system. Supports full lifecycle from development to production release with .env-based configuration, real-time policy monitoring, and intelligent CI/CD automation. Activated when users mention "iOS", "Swift", "SwiftUI", "Xcode", or need iOS app development help.

Documentation guidance for competition athletes and volunteers in WODsmith. Use when writing, reviewing, or improving athlete-facing documentation including registration, scheduling, workout viewing, leaderboards, check-in, and volunteer coordination.

Manages a structured knowledge base of patterns, troubleshooting guides, best practices, and workflows. Activates when discovering reusable insights, solving technical problems, or establishing new standards. Records knowledge in categorized files for future reference without bloating global CLAUDE.md.

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup

Clean temporary files, caches, and build artifacts.LOAD THIS SKILL WHEN: User says "清理", "clean", "刪除暫存", "清除快取" | disk space issues | before archiving | end of workflow.CAPABILITIES: Python cache (__pycache__, .pytest_cache), Node.js (dist, .cache), safe deletion with confirmation, protected files list.

Expert technical document reviewer. PROACTIVELY review ADRs, Design Docs, and RFCs for quality, completeness, and principle alignment after creating or updating technical documents.

Comprehensive AI ethics and responsible AI development specialist. Use PROACTIVELY for bias assessment, fairness evaluation, ethical AI implementation, community impact analysis, and regulatory compliance. Expert in AI safety, alignment, and equitable systems design. Scales from quick audits to full ethical impact assessments.

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.

Applies Zeyd's official brand colors, typography, and voice to artifacts needing visual identity. Use when creating UI components, marketing materials, emails, or any content requiring brand consistency.

Expert guide for real-time features using Supabase Realtime, WebSockets, live updates, presence, and collaborative features. Use when building chat, live updates, or collaborative apps.

Create distinctive, production-grade React interfaces using shadcn/ui. Triggers on frontend tasks, UI components, styling. Combines technical shadcn patterns with intentional design thinking for memorable aesthetics.

SKILLを作成・整理する際の設計原則とベストプラクティスを提供します。「ハードガードレールで担保されている要素は書かない」「用途をできるだけ絞る」などの原則をカバーします。新しいSKILLを作成する時、既存のSKILLをレビューする時にアクティベートします。

Guide for using mise (mise-en-place) to manage development tools, runtime versions, environment variables, and tasks across projects

Autogenerate constraint checking code from constraints (C-*) that specify system limits, timeouts, dependencies, or environmental requirements. Use when C-* includes technical constraints like timeouts, API limits, or compliance requirements.

Design and build reusable, composable UI components with clear interfaces, proper state management, and single responsibility. Use this skill when creating or modifying React components, Vue components, Svelte components, or any UI component library files. When working on files in components/, ui/, widgets/, or src/components/ directories. When designing component props and APIs, managing component state, composing smaller components into larger ones, refactoring monolithic components, or documenting component usage.

Implements Supabase Authentication with email, OAuth, magic links, and phone auth. Use when building apps with Supabase, needing auth integrated with Row Level Security, or implementing passwordless login.

Validates command frontmatter, delegation patterns, simplicity guidelines, and documentation proportionality. Use when reviewing, auditing, analyzing, evaluating, improving, or fixing commands, validating official frontmatter (description, argument-hint, allowed-tools, model), checking delegation clarity or standalone prompts, assessing simplicity guidelines (6-15 simple, 25-80 documented), validating argument handling, or assessing documentation appropriateness. Distinguishes official Anthropic requirements from custom best practices. Also triggers when user asks about command best practices, whether a command should be a skill instead, or needs help with command structure.

Use when integrating LLMs (OpenAI, Qwen, Claude), extracting structured data from text, building prompts, parsing AI responses, handling JSON output, or implementing multi-step AI workflows

Investigate Vercel deployment errors using Vercel CLI. Use when user shares a Vercel deployment error, build failure, or deployment URL that needs debugging.

Synthesize research, data, and insights to create a rich, actionable buyer persona with demographics, psychographics, jobs-to-be-done, pain points, motivations, buying journey, and channel preferences. Use when the user needs to understand their target customer deeply or create a customer persona for marketing strategy.