Backend

Define TypeScript types, interfaces, and type utilities. Use when creating type definitions, DTOs, API response types, or component props.

代碼撰寫與自動化。觸發：code, script, tool, automate, batch, crawler, API, 寫程式, 腳本, 自動化

RSpec testing patterns for Ruby and Rails. Use when writing tests, reviewing test code, or discussing testing strategy. Covers structure, naming, matchers, and external service stubbing.

Implement hooks for permission control and security in custom agents. Use when adding security controls, blocking dangerous operations, implementing audit trails, or designing permission governance.

Discipline epistemique stricte pour eliminer les derives cognitives de Claude. Activation SYSTEMATIQUE sur TOUTES les conversations. Impose: (1) Zero invention/supposition, (2) Honnetete absolue, (3) Vision holistique avec relecture du contexte, (4) Questions plutot que suppositions, (5) Remise en contexte perpetuelle avec checkpoints structures, (6) Documentation incrementielle sans doublons, (7) Vigilance workflow/CI-CD/securite, (8) TODO/plan obligatoire avant tout travail, (9) Documentation FR/EN scholar style signee Julien GELEE, (10) Zero credentials/API keys/donnees sensibles en clair. Posture ingenieur generaliste specialise IA.

Extract and analyze Figma designs to create structured design specifications. Use this skill when you need to analyze Figma nodes, extract design properties (layout, spacing, typography), classify components using Atomic Design principles, and generate design specification documents that can be used for implementation.

Query Atlassian Document Format (ADF) JSON schema definitions to understand ADF node and mark types. Use this skill when implementing ADF dataclass nodes/marks, or when user asks about ADF structure, ADF nodes, ADF marks, or Atlassian Document Format implementation.

This skill orchestrates code review and plan validation using Google Gemini CLI. It should be used when users want to validate implementation plans, review completed code, or discuss architecture decisions with Gemini as a second opinion. Supports FastAPI, Next.js, and general tech stacks with specialized checklists. Uses gemini-3-pro-preview model with free tier (60 req/min, 1000 req/day).

Central authority for managing Claude Code user configuration directories (~/.claude/ and ~/.claude.json). Covers storage cleanup, backup/restore, reset workflows, MCP server preservation, history management, plan management, session statistics, and configuration health auditing. Delegates to docs-management skill for official documentation. Use when managing user config, cleaning up storage, backing up settings, resetting Claude Code, or auditing configuration health.

Python document processing library for parsing PDF, DOCX, and 10+ formats with advanced layout understanding, unified document representation, and AI ecosystem integrations (LangChain, LlamaIndex, MCP server)

Backend services development with Python emphasizing security, performance, and maintainability for JARVIS AI Assistant

Expert at writing and reviewing Rails code following DHH's style as practiced at 37signals. Use when writing new Rails code, reviewing Rails code, making architectural decisions in Rails apps.

Use when generating exhaustive architecture documentation for any WordPress plugin/theme with built-in self-checking, progress tracking, and verification loops. Produces comprehensive docs covering classes, functions, hooks, REST API, AJAX, JS, DB, templates, blocks, and more.

Multi-perspective code analysis using three AI personas (RYAN methodical analyst, FLASH rapid innovator, SOCRATES questioning facilitator) to balance thoroughness with pragmatism. Use when complex code decisions need comprehensive analysis from multiple viewpoints, or when avoiding single-perspective blind spots is critical.

Windows platform patterns for native application development. Use when writing Windows C++, handling input, managing threads, or working with Win32/COM APIs. Covers message queues, keyboard hooks, SendInput batching, COM resource management, and QueryPerformanceCounter timing.

Complete Laravel development guide covering Eloquent, Blade, testing with Pest/PHPUnit, queues, caching, API resources, migrations, and Laravel best practices. Use when building Laravel applications, writing Laravel code, implementing features in Laravel, debugging Laravel issues, or when user mentions Laravel, Eloquent, Blade, Artisan, or PHP frameworks.

This skill should be used when reviewing Firebase code against security model and best practices. Triggers on "review firebase", "check firebase", "validate", "audit firebase", "security review", "look at firebase code". Validates configuration, rules, architecture, and security.

This skill should be used when debugging full-stack issues that span UI, backend, and database layers. It provides a systematic workflow to detect errors, analyze root causes, apply fixes iteratively, and verify solutions through automated server restarts and browser-based testing. Ideal for scenarios like failing schedulers, import errors, database issues, or API payload problems where issues originate in backend code but manifest in the UI.

Expert GraphQL developer specializing in type-safe API development, schema design, resolver optimization, and federation architecture. Use when building GraphQL APIs, implementing Apollo Server, optimizing query performance, or designing federated microservices.

Comprehensive backend development skill for building scalable backend systems using NodeJS, Express, Go, Python, Postgres, GraphQL, REST APIs. Includes API scaffolding, database optimization, security implementation, and performance tuning. Use when designing APIs, optimizing database queries, implementing business logic, handling authentication/authorization, or reviewing backend code.