Backend

Systems programming expertise for Tauri desktop application backend development with memory safety and performance optimization

Manage Laravel projects with docker-local - list, create, clone, and open projects

Web Audio API for JARVIS audio feedback and voice processing

Enables JMAP email operations using Node.js and jmap-jam library. Use when working with JMAP email servers, FastMail, Cyrus IMAP, Stalwart Mail Server, or when user mentions email search, reading, sending, or mailbox management.

Saves Claude Code or Codex CLI conversation threads to Nowledge Mem knowledge base via HTTP API. Use when user requests to save, persist, or backup the current session or conversation thread.

Generates new Claude Code Skills with intelligent defaults. Activates when user discusses creating a new skill, capability, or reusable workflow. Infers purpose from context, creates proper YAML frontmatter, suggests tool restrictions, and sets up supporting file structure. Use when user mentions "create a skill", "new skill", "skill for", or discusses adding reusable capabilities.

GraphQL API development including schema design, resolvers, queries, mutations, subscriptions, and integration with Node.js, Apollo, and other frameworks. Use when building GraphQL APIs, designing GraphQL schemas, implementing resolvers, or debugging GraphQL issues.

Go code review skill synthesized from 4,100+ PR review comments spanning 4.5 years from the tetrateio/tetrate repository. Use this skill when reviewing Go code, providing code review feedback, or understanding common review patterns. Contains patterns for error handling, nesting reduction, thread safety, testing, naming, interface design, and more.

Backend-for-Frontend architecture patterns for API aggregation, data transformation, and client-specific optimization. Activates when designing API layers between backends and frontends or implementing data transformation pipelines.

TypeScript best practices. Use when writing TypeScript code for backend services, API handlers, or shared utilities. Applies async/await patterns, typed errors, and strict type safety.

Manage Rust and Node.js dependencies including adding, updating, auditing, and resolving conflicts. Use when updating dependencies or resolving version conflicts.

Implement authentication with NextAuth v5. Use when adding login/logout, checking sessions, protecting API routes, server actions, or pages.

Scaffold Laravel packages with ServiceProvider, Facade, Config, and test setup

Write integration tests with Jest for API routes and database operations. Use when testing backend logic, API endpoints, or data layer.

Modern C++17/20 patterns for native application development. Use when writing C++, reviewing diffs, or discussing performance. Covers move semantics, templates vs std::function, thread safety, STL containers, async patterns, struct initialization, and API design.

LLMが外部サービスと対話するための適切に設計されたツールを通じて、高品質なMCP (Model Context Protocol) サーバーを作成するためのガイド。Python (FastMCP)、Node/TypeScript (MCP SDK)、Rust (Tokio)で、外部APIやサービスを統合するMCPサーバーを構築する際に使用します。

Modern PHP development best practices including PHP 8.x features, OOP patterns, error handling, security, testing, and performance optimization. Use when writing PHP code, reviewing PHP projects, debugging PHP issues, or implementing PHP features outside of WordPress/Laravel specific contexts.

This skill should be used when the user asks to "add server action", "implement Supabase query", "connect to backend", "add database integration", "implement RLS", "use server actions", "add data mutation", "implement CRUD operations", "revalidate path", "add authentication check", or needs guidance on server-side integration, defense-in-depth security, or type-safe database queries with Supabase.

JSONで定義されたAPI仕様を元にRuby on RailsでAPIと管理画面を実装するスキル。全体のオーケストレーションを行い、各ステップの詳細ガイドラインに従って実装を進めます。

Expert assistant for the Okyline schema language. Okyline enables JSON data validation by example, where constraints are expressed inline on field names. Use when creating, editing, or converting JSON Schema, Avro, or other schema formats to Okyline, or when answering questions about Okyline syntax and features. This skill should be triggered whenever the user mentions Okyline, references .oky files, or asks about example-driven JSON schema validation.