Backend

Data Transfer Objects using Spatie Laravel Data. Use when handling data transfer, API requests/responses, or when user mentions DTOs, data objects, Spatie Data, formatters, transformers, or structured data handling.

Infrastructure as Code patterns for deploying Guts nodes using Terraform, Docker, and Kubernetes

Your approach to handling global API design. Use this skill when working on files where global API design comes into play.

Code quality tooling with PHPStan, Pint, and strict types. Use when working with code quality, static analysis, formatting, or when user mentions PHPStan, Pint, quality, static analysis, type safety, code style, linting.

Manage webhooks in Sinch Conversation API. Use when the user wants to create a webhook, update webhook settings, list webhooks, delete a webhook, get webhook details, configure webhook triggers, or manage webhook callbacks. Handles webhook lifecycle management including creation, updates, deletion, and trigger configuration.

SAP Cloud Application Programming Model (CAP) development skill using Capire documentation. Use when: building CAP applications, defining CDS models, implementing services, working with SAP HANA/SQLite/PostgreSQL databases, deploying to SAP BTP Cloud Foundry or Kyma, implementing Fiori UIs, handling authorization, multitenancy, or messaging. Covers CDL/CQL/CSN syntax, Node.js and Java runtimes, event handlers, OData services, and CAP plugins.

Send messages via Sinch Conversation API over WhatsApp, SMS, RCS, Messenger, Viber, Instagram, Telegram, and other channels. Use when the user wants to send a message, text someone, send a WhatsApp message, send an SMS, or communicate via any messaging channel. Automatically handles contact creation and conversation management.

State machines using Spatie Model States for complex state transitions. Use when working with complex state management, state transitions, or when user mentions state machines, Spatie Model States, state transitions, transition validation.

Node.js/TypeScript backend framework with dependency injection and modular architecture

Use this skill when designing REST, GraphQL, or gRPC APIs. Provides comprehensive API design patterns, versioning strategies, error handling conventions, authentication approaches, and OpenAPI/AsyncAPI templates. Ensures consistent, well-documented, and developer-friendly APIs across all backend services.

Expert .NET 10 Full-Stack Developer skill. Use this when implementing new features, vertical slices, or modifying existing logic in the MoreSpeakers application. It covers Domain, Data (EF Core), Managers, and Web (Razor Pages + HTMX).

Backed enums with labels and business logic. Use when working with enums, status values, fixed sets of options, or when user mentions enums, backed enums, enum cases, status enums.

Develops business applications on SAP Business Technology Platform (BTP) using CAP (Node.js/Java) or ABAP Cloud. Use when: building cloud applications on SAP BTP, deploying to Cloud Foundry or Kyma runtimes, integrating with SAP HANA Cloud, implementing SAP Fiori UIs, connecting to remote SAP systems, building multitenant SaaS applications, extending SAP S/4HANA or SuccessFactors, setting up CI/CD pipelines, implementing observability, or following SAP development best practices. Keywords: SAP BTP, Business Technology Platform, CAP, Cloud Application Programming Model, ABAP Cloud, Cloud Foundry, Kyma, SAP HANA Cloud, SAP Fiori, SAPUI5, CI/CD, observability, multitenant, SaaS, SAP BTP ABAP environment, SAP Business Application Studio, SAP Cloud SDK, SAP Integration Suite, SAP Event Mesh, SAP Connectivity Service, SAP Destination Service, XSUAA, OAuth, OpenID Connect, OData, CDS, Core Data Services, ABAP CDS, ABAP RESTful Application Programming Model, RAP, ABAP development, SAP BTP development

Real-time browser debugging and interaction via WebSocket bridge server on localhost:3141

Reviews Wish SSH server code for proper middleware, session handling, and security patterns. Use when reviewing SSH server code using charmbracelet/wish.

Express.js backend API development for Vigil Guard v2.0.0. Use for endpoint creation, JWT authentication, RBAC, ClickHouse queries with 3-branch columns, rate limiting, CORS management, branch service proxy endpoints, and audit logging.

High-level architecture decisions, patterns, and project structure. Use when user asks about architecture decisions, project structure, pattern selection, or mentions how to organize, which pattern to use, best practices, architecture.

Use when conducting web research with Perplexity API - covers authentication, search strategies, structured output generation, and integration patterns for Claude-interpretable results

Service layer for external API integration using manager pattern and Saloon. Use when working with external APIs, third-party services, or when user mentions services, external API, Saloon, API integration, manager pattern.

World-class C# and .NET development skill for enterprise applications, ASP.NET Core web APIs, and cloud-native systems. Expertise in .NET 8, Entity Framework Core, ASP.NET Core Identity, Blazor, and microservices architecture. Includes project scaffolding, dependency management, security implementation, and performance optimization.