Claude Code: Development & Code Review Skills

Lint and format frontend code with Biome 2.4. Covers type-aware linting, GritQL custom rules, domains, import organizer, and migration from ESLint/Prettier. Use when configuring linting rules, formatting code, writing custom lint rules, or setting up CI checks. Triggers on biome, biome config, biome lint, biome format, biome check, biome ci, gritql, migrate from eslint, migrate from prettier, import sorting, code formatting, lint rules, type-aware linting, noFloatingPromises.

General rules for linting this project; use when handling lint errors or adding ESLint to a package.

Comprehensive Expo expert with access to complete official documentation covering React Native development, EAS Build, EAS Submit, EAS Update, Expo Router, Expo Modules API, configuration, deployment, and all platform features. Invoke when user mentions Expo, React Native, EAS, Expo Router, mobile app development, iOS/Android development, or cross-platform development.

Guides development of Fastify Node.js backend servers and REST APIs using TypeScript or JavaScript. Use when building, configuring, or debugging a Fastify application — including defining routes, implementing plugins, setting up JSON Schema validation, handling errors, optimising performance, managing authentication, configuring CORS and security headers, integrating databases, working with WebSockets, and deploying to production. Covers the full Fastify request lifecycle (hooks, serialization, logging with Pino) and TypeScript integration via strip types. Trigger terms: Fastify, Node.js server, REST API, API routes, backend framework, fastify.config, server.ts, app.ts.

Core Node.js backend patterns for TypeScript applications including async/await error handling, middleware concepts, configuration management, testing strategies, and layered architecture principles. Use when building Node.js backend services, APIs, or microservices.

Senior Architect methodology for greenfield projects — collects business requirements through 1-3 chat phases, then produces 6+1 artifacts in docs/plans/ / (brief, architecture, database, structure, risks, deployment, ai-resources) plus a tasks.yaml DAG ready for orchestrator.db. Use when user says: новый проект с нуля, хочу запустить, помоги спланировать приложение, идея проекта, как реализовать , greenfield. SKIP: refactoring existing project (→worker-refactor-architect), single-feature planning in existing project (→feature-planner).

Data validation and settings management using Python type annotations with Pydantic…

PyTorch deep learning development with transformers, diffusion models, and GPU optimization.

Python SQL toolkit and ORM with expressive query API, relationship mapping, async support, and Alembic…

Use when working with pre-trained transformer models for natural language processing, computer vision, audio, or multimodal tasks.

A next-generation HTTP client for Python with both sync and async support, perfect for modern Python…

Zod schema validation and type inference.