Backend

Create Express.js API endpoints following the MVC pattern. Use when the user wants to create new REST API routes, controllers, or services for the backend.

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Comprehensive Django development guidelines for Pantas Green emissions tracking platform.Use when: writing Django models, views, serializers, migrations, ORM queries, templates, or any Python backend code.Triggers: django, model, view, serializer, migration, ORM, queryset, endpoint, API, DRF, emission, carbon, python backend, template, admin

codeXray 功能开发模块。当需要实现项目分析、文档生成、代码注释、AI 工作流、Copilot API 集成时使用。涵盖文件遍历、分层分析、上下文管理、文档输出等核心功能。

Provides brutally honest, rapid validation of app and product ideas before the user invests time building. Use when the user wants feedback on an app concept, startup idea, product feature, or side project to assess market viability, demand, feasibility, and monetization potential. Triggers include phrases like "what do you think of this idea," "should I build," "validate this concept," "is this worth building," or when the user describes an app/product concept and seems to want honest feedback.

Go backend with Gin, MongoDB, JWT auth, and Clean Architecture.

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Install and configure the Odin programming language. Use when:- Setting up Odin on a new machine- Updating Odin to latest version- Configuring Odin language server (ols)

Generate and edit images using the Gemini API (Nano Banana Pro). Use this skill when creating images from text prompts, editing existing images, applying style transfers, generating logos with text, creating stickers, product mockups, or any image generation/manipulation task. Supports text-to-image, image editing, multi-turn refinement, and composition from multiple reference images.

Backend development specialist covering API design, database integration, microservices architecture, and modern backend patterns

TypeScript-first schema validation library with static type inference for form validation, API validation, and runtime type checking with compile-time types.

Complete error handling patterns for Wasp applications. Use when implementing error handling, validation, or working with HTTP errors. Includes server-side operations errors, client-side error handling, Zod validation, and retry logic.

Node.js backend development with TypeScript, Express/Fastify servers, routing, middleware, and database integration

Write secure, performant database queries using parameterized queries, proper eager loading, and transaction management. Use this skill when writing database queries, ORM operations, raw SQL statements, or repository methods. When working on files in repositories/, queries/, services/, or any code that interacts with the database. When optimizing query performance, preventing N+1 queries, implementing transactions, adding query timeouts, or caching expensive queries. When reviewing code for SQL injection vulnerabilities.

Analyze and optimize Django ORM queries including N+1 problems, missing indexes, slow queries, and migration issues. Use when troubleshooting slow API responses, database performance, query optimization, or migration errors.

Use when users ask about Claude Code features, setup, configuration, troubleshooting, slash commands, MCP servers, Agent Skills, hooks, plugins, CI/CD integration, or enterprise deployment. Activate for questions like 'How do I use Claude Code?', 'What slash commands are available?', 'How to set up MCP?', 'Create a skill', 'Fix Claude Code issues', or 'Deploy Claude Code in enterprise'.

Use when Codex needs semantic web search, news reconnaissance, or citation gathering through the Exa MCP server.

Use space-based/data-grid architectures to scale high-traffic, stateful workloads across nodes.

Remote control tmux sessions for interactive CLIs (python, gdb, etc.) by sending keystrokes and scraping pane output.

バックエンド（Rust/Tauri）のテスト実装とデバッグを行います。Rustのテスト作成、cargo testの実行、テストエラーの修正、Repository/Service/Facadeレイヤーのテストなどのバックエンドテスト関連タスクに使用します。