Documentation

Generate professional product mascot character reference sheets with a specific multi-panel layout. Use this skill when creating character design sheets, mascot documentation, brand mascot references, or character consistency guides with multiple views (isometric, front/back/left/right, emotion poses). Optimized for product mascots and brand characters using Gemini image generation with Libre Baskerville typography.

Implement robust error handling with user-friendly messages, fail-fast validation, specific exception types, centralized error boundaries, graceful degradation, retry strategies, and proper resource cleanup. Use this skill when writing try-catch blocks or exception handling code in any programming language (JavaScript/TypeScript, Python, Java, Go, Rust), implementing error boundaries in React (ErrorBoundary components) or similar error handling patterns in other frameworks (Vue error handlers, Angular ErrorHandler), handling API errors and HTTP error responses in fetch calls, Axios requests, or tRPC procedures, validating user input and function preconditions at the start of functions, creating custom error classes or exception types for specific failure scenarios (ValidationError, NotFoundError, UnauthorizedError, PaymentError), implementing retry logic with exponential backoff for external service calls, network requests, or database queries, ensuring proper resource cleanup in finally blocks or using langu

Create reversible, focused database migrations with proper naming, version control practices, and zero-downtime deployment considerations. Use this skill when creating or editing migration files in database/migrations/, when writing schema changes (creating/modifying tables, columns, indexes, foreign keys), when implementing migration rollback methods, when managing database version control, when adding or modifying indexes on large tables, or when separating schema changes from data migrations for safer deployments.

Use when writing pytest tests, creating fixtures, mocking dependencies, or testing async code - provides patterns that verify actual behavior with proper fixtures and parametrization; prevents testing mocks instead of code (plugin:python@dot-claude)

Create a new blog post. Use when user says "new post", "新文章", "新增文章", or wants to start writing a new article.

Transform stakeholder needs into structured, testable specifications with user stories, acceptance criteria, and business rules. Use when: (1) creating requirements documents, (2) writing user stories with acceptance criteria, (3) defining business rules and process flows, (4) analyzing feature requests.

Build production-ready React components with TypeScript. Use when creating UI components (buttons, inputs, modals, cards), implementing hooks patterns, component composition, or setting up component documentation/testing. Covers accessibility, error boundaries, and performance optimization.

Analyze a project and implement CI/CD pipelines tailored to its tech stack and deployment target. This skill should be used when a project is ready for automated testing and/or deployment. Generates GitHub Actions workflows, deployment scripts, and secrets documentation. Works as a standalone utility on any project.

Process ephemeral session notes and extract valuable knowledge into permanent documentation

Atlas Simulator scan flow and next-step guidance for markdowntown. Use when working on folder scanning, tool detection, cwd handling, results panels, or scan-to-workbench CTAs.

Clear, concise writing standards for documentation, comments, commit messages, and technical communication. Use when writing README files, documentation, PR descriptions, code comments, or any technical writing. Focuses on clarity, brevity, and active voice.

Comprehensive Next.js project setup from scratch following industry best practices. Use when creating new Next.js projects, requiring template selection, design system ideation, specifications, wireframes, implementation with TDD, QA validation, and complete documentation. Handles both simple quick-start and complex multi-phase projects with sub-agent orchestration.

Master developer experience design, API design, and documentation. Learn to create smooth workflows and excellent tools for plugin developers and users.

Maintain a structured web research registry: analyze provided URLs, summarize pages, tag them, and update docs/research/web-research registries and site READMEs. Use when the user shares web links or asks to build/expand the research registry, tags, or site/page listings.

Build robust IoT solutions for Siemens PLCs using S7 protocol and OPC UA. Includes connection management, data reading/writing, error handling, security best practices, real-time monitoring, alarm handling, and production-ready wrappers for Python (snap7, asyncua) and Node.js (node-s7, node-opcua). Use when integrating with Siemens S7-300/400/1200/1500 PLCs, implementing SCADA systems, building industrial automation, monitoring production lines, or creating IoT gateways.

ドキュメントレビュー - コメント品質、API仕様、README、型定義コメントを評価

Create a new Claude Code skill following official specifications. Use when creating custom skills, adding skill documentation, or setting up skill directories. Covers YAML frontmatter, markdown structure, and best practices.

Specialize the workspace for the current customer. Use when the user wants to migrate, customize, or update a devcontainer for a new customer. Handles cleaning up repository lists, updating customer references in devcontainer.json, README.md, and powershell scripts in the scripts folder.

Feature-first development approach that organizes code by features rather than technical layers, promoting cohesion and reducing coupling

Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers. Trigger when user mentions writing docs, creating proposals, drafting specs, or similar documentation tasks.