> browse/registry

> directus

Build backends and APIs with Directus headless CMS. Use when a user asks to create a headless CMS, build a content API without coding, set up a backend admin panel, create REST or GraphQL APIs from a database, manage content with roles and permissions, build a data platform with auto-generated APIs, or replace traditional CMS with a headless solution. Covers data modeling, auto-generated REST/GraphQL APIs, roles/permissions, flows (automation), file storage, and SDK integration.

> spring-boot

Spring Boot is a Java framework that simplifies building production-ready applications. It provides auto-configuration, embedded servers, and opinionated defaults for REST APIs, data access with JPA, security, and monitoring via Actuator.

> aspnet-core

Build, review, refactor, or architect ASP.NET Core web applications using current official guidance for .NET web development. Use when working on Blazor Web Apps, Razor Pages, MVC, Minimal APIs, controller-based Web APIs, SignalR, gRPC, middleware, dependency injection, configuration, authentication, authorization, testing, performance, deployment, or ASP.NET Core upgrades.

> nhost

Expert guidance for Nhost, the open-source backend platform built on PostgreSQL, Hasura GraphQL, and serverless functions. Helps developers set up authentication, database, file storage, and real-time subscriptions with auto-generated GraphQL APIs and a developer-friendly SDK.

> n8n-self-host

Self-host, configure, scale, and manage n8n instances. Use when a user asks to install n8n with Docker, set up n8n in production, configure n8n environment variables, scale n8n with workers, back up n8n workflows, restore n8n data, manage n8n via CLI or REST API, monitor n8n, troubleshoot n8n issues, set up n8n with PostgreSQL, or deploy n8n with a reverse proxy. For designing n8n workflows and nodes, see n8n-workflow.

> kafka

Build event-driven systems with Apache Kafka. Use when a user asks to set up message streaming, implement event sourcing, build pub/sub systems, process real-time data streams, or connect microservices with async messaging.

> wails

Expert guidance for Wails, the Go framework for building desktop applications with web frontends. Helps developers build lightweight, fast desktop apps where the backend is Go and the frontend is any web framework (React, Vue, Svelte), communicating through auto-generated TypeScript bindings.

> cal-com

Expert guidance for Cal.com, the open-source scheduling platform for building booking and appointment systems. Helps developers integrate Cal.com's embed widgets, REST API, and webhooks to add scheduling capabilities to their applications.

> nats-messaging

Build distributed messaging systems with NATS — pub/sub, request/reply, JetStream persistent messaging, and key-value store. Use when someone asks to "set up message queue", "pub/sub system", "event-driven architecture", "NATS messaging", "distributed messaging", "microservice communication", "message broker", or "replace Kafka/RabbitMQ with something simpler". Covers core NATS, JetStream, KV store, and object store.

> hasura

Expert guidance for Hasura, the GraphQL engine that gives the agent instant, real-time GraphQL APIs over PostgreSQL (and other databases). Helps developers set up Hasura, configure permissions, write custom business logic with Actions and Event Triggers, and optimize GraphQL queries for production.

> envoy

You are an expert in Envoy, the high-performance C++ proxy designed for cloud-native applications. You help teams configure Envoy as an API gateway, service mesh sidecar, and load balancer using its L4/L7 routing, circuit breaking, rate limiting, TLS termination, gRPC support, and observability features — powering Istio, AWS App Mesh, and most modern service mesh implementations.

> symfony

You are an expert in Symfony, the enterprise PHP framework for building web applications and APIs. You help developers build production systems with Symfony's component architecture, Doctrine ORM, dependency injection, event system, security component, API Platform for REST/GraphQL, and Messenger for async processing — the backbone of enterprise PHP used by companies processing billions of requests.

> grpc

Build high-performance RPC services with gRPC and Protocol Buffers. Use when a user asks to create gRPC services, define protobuf schemas, implement streaming RPCs, build microservice communication, set up service-to-service calls, implement bidirectional streaming, add interceptors/middleware to gRPC, generate client stubs, handle gRPC errors, implement health checks, configure load balancing, or build gRPC-Web for browser clients. Covers unary, server/client/bidirectional streaming, intercepto

> graphql

Build and consume GraphQL APIs. Use when a user asks to create a GraphQL server, write GraphQL schemas, implement resolvers, set up subscriptions, build a GraphQL API, add authentication to GraphQL, optimize queries with DataLoader, implement pagination, handle file uploads, generate types from schema, consume a GraphQL endpoint, or migrate from REST to GraphQL. Covers Apollo Server, Apollo Client, schema design, resolvers, subscriptions, federation, and production patterns.

> superset

Apache Superset is an open-source data exploration and visualization platform. Learn Docker deployment, database connections, chart creation, dashboard building, SQL Lab usage, and programmatic access via the REST API.

> strapi

You are an expert in Strapi, the leading open-source headless CMS built with Node.js. You help teams build content APIs using Strapi's admin panel for content modeling, role-based access control, media library, and plugin system — with auto-generated REST and GraphQL APIs that power websites, mobile apps, and any frontend through a clean content management interface that non-technical editors can use.

> graphql-yoga

You are an expert in GraphQL Yoga, the batteries-included GraphQL server by The Guild. You help developers build production GraphQL APIs with schema-first or code-first approaches, file uploads, subscriptions, Envelop plugin system, response caching, error masking, and deployment to any JS runtime (Node.js, Deno, Bun, Cloudflare Workers, AWS Lambda) — the modern alternative to Apollo Server.

> pact

When the user wants to implement consumer-driven contract testing between microservices using Pact. Also use when the user mentions "pact," "contract testing," "consumer-driven contracts," "CDC testing," "provider verification," or "Pact Broker." For API mocking, see mockoon or wiremock.

> refine

Build data-intensive React applications with Refine. Use when a user asks to create admin panels, dashboards, or CRUD interfaces using Refine with REST, GraphQL, or custom data providers and Ant Design or Material UI.

> pocketbase

Assists with building backends using PocketBase, a single-binary backend with embedded SQLite, real-time subscriptions, file storage, and authentication. Use when creating MVPs, prototyping APIs, configuring collections, or setting up auth flows. Trigger words: pocketbase, backend, sqlite, real-time, single binary, collections, pb.