Tools

Use this skill when developing Next.js 16+ applications - creating pages, components, layouts, API routes, implementing proxy.ts, adding caching with Cache Components, or refactoring frontend code. This includes working with App Router patterns, Server Components, Server Actions, React 19+ features, and Tailwind CSS v4.

Advanced diagnostic workflow for bug-fixer agent with mandatory Context7 MCP consultations, Chrome DevTools MCP integration, and systematic root cause analysis across all Clean Architecture layers.

Next.js development tooling via MCP. Inspect routes, components, build info, and debug Next.js apps. Use when working on Next.js applications, debugging routing, or inspecting app structure. NOT for general React or non-Next.js projects.

Expert Unreal Engine 5 developer and technical artist for complete game development via agentic coding. Enables AI-driven control of Unreal Editor through MCP, Python scripting, Blueprints, and C++ for level design, asset management, gameplay programming, and visual development.

Technical workflow for architect-agent - PRD creation with mandatory database context, entity design with Zod, iteration review, and agent coordination in the iterative v2.0 system

Generate semantic-release configuration for automated versioning and publishing. Triggers on "create semantic release config", "generate semantic-release configuration", "auto release setup", "release automation".

Generate PlantUML diagrams from text descriptions and convert them to PNG/SVG images. Use when asked to "create a diagram", "generate PlantUML", "convert puml to image", "extract diagrams from markdown", or "prepare markdown for Confluence". Supports all PlantUML diagram types including UML (sequence, class, activity, state, component, deployment, use case, object, timing) and non-UML (ER diagrams, Gantt charts, JSON/YAML visualization, mindmaps, WBS, network diagrams, wireframes, and more).

MANIFEST_IO file-first execution contract. Use when: running any tool/script and you need reproducible artifacts. Triggers: manifest, manifest io, file-first, strict mode, MANIFEST_IO.

Use when configuring Karabiner-Elements keyboard customizations, before writing JSON - provides systematic workflow for complex modifications with correct structure, common patterns, and guidance on manual vs generator approaches

Generate neat, clean flashcards in markdown table format from a topic title or reference file. Use when you need to create study materials, review cards, or learning aids for any subject.

Working with Excel files programmatically.

Performance optimization toolkit for Astro SSG sites. Analyzes and applies optimizations including resource preloading (fonts, images, CSS), page prefetching, image loading strategies (lazy/eager, fetchpriority), and configuration improvements. Use when the user asks to optimize an Astro site, improve Astro performance, add preloading, configure prefetching, or speed up their Astro build. Handles both automatic safe optimizations and user-confirmed risky optimizations.

Search technical documentation using executable scripts to detect query type, fetch from llms.txt sources (context7.com), and analyze results. Use when user needs: (1) Topic-specific documentation (features/components/concepts), (2) Library/framework documentation, (3) GitHub repository analysis, (4) Documentation discovery with automated agent distribution strategy

Use when writing Go code to interact with Hetzner Cloud API - automation, infrastructure provisioning, bots, integrations, or programmatic cloud operations

Creates and validates Claude Code skills with proper format. Use when creating new skills, writing SKILL.md files, validating existing skills, or when user mentions "skill format", "create skill", "skill template", or "validate skill".

Building commissioning workflows including MBCx procedures, testing protocols, report generation, and energy conservation measure verification following ASHRAE Guideline 0 and NEBB standards

プロジェクト全域の命名規則。ディレクトリ、ファイル、コード内の全ルールを網羅した唯一の正解（SSoT）。

Role and project workload overview. Use when user wants to see their current workload, role balance, or status across roles/projects. Auto-triggers on phrases like "how am I doing", "workload", "what's on my plate", "role balance", "project status", "hur ligger jag till", "arbetsbelastning", "rollbalans".

Safe database migration workflow with Spatie backup integration. Always backup before migration, update mermaid.rb schema, keep max 10 recent backups. USE WHEN creating migrations, running migrations, restoring database, managing schema changes, or any risky database operations.

Use when Codex must inspect or update GitHub resources (issues, PRs, workflows) through the official remote GitHub MCP server.