Technical Writing

Expert TypeScript/JavaScript development guidance. Use when planning or writing TypeScript/JavaScript code, setting up TS/JS projects, configuring build tools (pnpm, Vite, TypeScript), implementing tests (Vitest), adding logging (pino for services, chalk/console for CLIs), working with React/Tailwind/Xstate, or following FP patterns. Covers stack decisions, tooling setup, testing strategies, and logging patterns for both services and CLI tools.

Standards for writing CLAUDE.md and modular rules files (.claude/rules/) that maximize LLM execution efficiency. Use when creating or editing project instructions, defining conventions, or optimizing agent behavior for determinism and token efficiency. Focuses on eliminating ambiguity and producing consistent agent execution.

优化程序员 Markdown 简历，包括改进技术描述、量化项目成果、突出技术亮点、优化技能展示。当用户说"优化简历"、"改进简历"、"重写简历"、"让简历更专业"、"提升简历质量"，或提供简历文件需要优化时使用。

UI design system toolkit for creating consistent, accessible, and scalable interfaces. Includes design token generation, component documentation, responsive design calculations, and developer handoff tools. Use for creating design systems, maintaining visual consistency, and facilitating design-dev collaboration.

Reusable Liquid snippet patterns with proper documentation and parameter handling

Use before committing staged changes when you need to verify all related documentation is current - systematically checks README, CLAUDE.md, CHANGELOG, API docs, package metadata, and cross-references rather than spot-checking only obvious files

When you need check documentation about Ruby classes, modules, and methods use this skill to get full details. Avoid check source code or use `ruby -e` for documentation unless absolutely necessary.

Maps SAEF artifacts (business statement → docs) to Soracom Shortcut epics/stories, including status transitions, MCP tool usage, and GitHub linkage.

Use when writing or changing tests, adding mocks, or tempted to add test-only methods to production code - prevents testing mock behavior, production pollution with test-only methods, and mocking without understanding dependencies

Writes E2E and component tests with Cypress including selectors, commands, fixtures, and API testing. Use when testing web applications end-to-end, testing user flows, or writing integration tests.

Export and access Google Drive files (docs, sheets, meeting notes)

Guides Claude in writing idiomatic, efficient, well-structured Rust code using proper data modeling, traits, impl organization, macros, and build-speed best practices.

Tailwind CSS v4 styling for this project. Use when writing or modifying component styles, CSS classes, or theme configuration. Provides the project's semantic color system and v4-specific patterns.

ドキュメント作成とナレッジ管理の原則

Update this documentation kit safely from upstream.

Guides Rust backend test development with testcontainers, mockall, and axum-test. Use when writing integration tests, mocking dependencies, testing HTTP handlers, or setting up test infrastructure for Axum/SQLx projects.

Generates Soracom documentation (JP user guide for website-users Hugo site + EN developer guide for website-developers Grav site). Use when creating user guides, API reference, FAQ content, or any customer-facing documentation.

REST/GraphQL/tRPC API pattern library with validation, error handling, and documentation. Use when creating backend APIs.

Evidence-based UI design system from Practical UI by Adham Dannaway (283 pages, 14 chapters). Use when designing interfaces, reviewing UI, creating mockups, building components, or applying design principles. Covers visual hierarchy, spacing systems, color palettes, typography scales, form design, button patterns, accessibility (WCAG 2.1 AA), copywriting, and reducing cognitive load. Triggers on UI design, interface design, component design, design system, accessibility, WCAG, visual hierarchy, spacing, typography, color palette, forms, buttons, layout, grid, or copywriting questions.

プロジェクト内のドキュメント（README.md、CHANGELOG.md、docs/ など）を監査し、コード変更に基づいて更新が必要な箇所を特定・提案します。作業完了後のドキュメント更新確認に使用。