Explorar skills

Domain-Driven Design — strategic-first (bounded contexts, context mapping) with aggregates, value objects, domain events, repositories. Event sourcing out of scope. Use when shaping a domain model or designing aggregate boundaries.

Hexagonal architecture (ports & adapters) — dependencies point inward; domain declares ports, adapters implement them; domain never imports framework/DB/HTTP. Dependency graph is prescribed, folder layout is not. Use when designing service structure, placing interfaces, or evaluating seam cleanliness.

Protocol Buffers (proto3) standards — Buf-style package naming, protovalidate (CEL), buf toolchain for lint/breaking/generation, field-number reservation, well-known types. Language-agnostic schema design. Use when designing or evolving .proto files.

Framework-specific delta on rest-api-architect — FastAPI 0.136 on Python 3.14. Feature layout, Pydantic v2 request/response separation, async DI with lifespan, URL-prefix versioning, RFC 7807 errors, in-house OAuth2+JWT or external IdP. Read rest-api-architect first for the cross-cutting REST conventions. Use when scaffolding or reviewing a FastAPI service.

Framework-specific delta on rest-api-architect — Gin 1.12 on Go 1.26. Feature layout, struct-tag validation, RFC 7807 errors, in-house JWT or external IdP, route groups for URL-prefix versioning, OpenAPI. Read rest-api-architect first for the cross-cutting REST conventions. Use when scaffolding or reviewing a Gin service.

Hugo 0.161 static-site architectural standards — project layout, front matter conventions, template hierarchy, Hugo Modules over submodules, Page Bundles, asset pipeline via Hugo Pipes, i18n, render hooks, deployment targets. Extended edition required. Use when scaffolding, reviewing, or auditing a Hugo site or theme.

Framework-specific delta on rest-api-architect — Go stdlib net/http (Go 1.22+ ServeMux, no router) on Go 1.26. Feature layout, struct-tag validation, RFC 7807 errors, JWT or IdP auth, graceful shutdown, OpenAPI via kin-openapi. Read rest-api-architect first for the cross-cutting REST conventions. Use when scaffolding or reviewing a stdlib net/http service.

Next.js 16 standards — App Router only, server components by default with explicit `"use client"` boundaries, server actions for mutations, streaming Suspense, edge vs node runtime, Image/Font/Metadata APIs. Pairs with react-architect. Use when scaffolding or reviewing a Next.js app or auditing server/client boundaries.

React 19 standards — TypeScript strict, feature-based components, hooks-first composition, TanStack Query for server state, zustand for cross-tree client state, Suspense + ErrorBoundary at every async boundary, Radix for a11y. Use when writing or reviewing React components, hooks, or client-side state.

UI/UX standards — WCAG 2.2 AA, Radix + Tailwind 4 + shadcn/ui, design-token theming, mandatory loading/error/empty/success states on every async surface, mobile-first responsive, keyboard parity, contrast checked in CI. Use when designing UI components, building a design system, or auditing accessibility.

Walk the user through designing a website concept before any code — purpose, audience, content inventory, tone, visual archetype, structure — and output 2-3 distinct concept directions plus an ASCII homepage wireframe. Use when planning a new personal site, portfolio, or marketing page upstream of implementation. Hands off to ui-ux-architect / frontend-design.

SQL standards — UUID v7 PKs, snake_case, soft delete, forward-only migrations, parameter binding, N+1 prevention, EXPLAIN-driven indexing. PostgreSQL 18 primary; MySQL 9 and SQLite 3.53 noted. Use when designing schemas, writing queries, or auditing a database layer.