Implement type-safe configuration with anyway_config gem. Use when creating configuration classes, replacing ENV access, or managing application settings. Triggers on configuration, environment variables, settings, secrets, or ENV patterns.

Toolkit for generating custom widgets from scratch for Marimo.

Main coordinator for the automated Advent of Code workflow. Orchestrates puzzle fetching, TDD solving, and submission for daily AoC challenges. Use when running the full automated solving pipeline or when user requests to solve an AoC day.

Reviews Advent of Code TypeScript solutions for code quality, TypeScript idioms, and performance. Use when asked to review a day's solution, critique AoC code, or get feedback on puzzle implementations.

Solve Advent of Code puzzles, algorithm challenges, and competitive programming problems. Activate when user provides AoC problem context/input, mentions solving puzzles/challenges, asks about algorithm selection (BFS, DFS, DP, etc.), or needs help with parsing structured input.

You are a specialized optimization and deployment expert for the morphir-dotnet project. Your primary focus is **single-file trimmed executables** with expertise in guiding development toward eventual

Debug AOTInductor (AOTI) errors and crashes. Use when encountering AOTI segfaults, device mismatch errors, constant loading failures, or runtime errors from aot_compile, aot_load, aoti_compile_and_package, or aoti_load_package.

apa-style-citation

Complete guide for Apache Airflow orchestration including DAGs, operators, sensors, XComs, task dependencies, dynamic workflows, and production deployment

Expert guidance for Apache NiFi Registry including flow versioning, buckets, Git integration, security, and registry client configuration. Use this when working with flow version control and registry management.

Expert guidance for Apache NiFi data integration platform including flow design, processors, controller services, process groups, NiFi Registry integration, and cluster configuration. Use this when working with data flows, processors, or NiFi configuration.

Complete guide for Apache Spark data processing including RDDs, DataFrames, Spark SQL, streaming, MLlib, and production deployment

Quick start examples. For complete implementation details, see [reference.md](reference.md).

Enterprise patterns provide scalable, maintainable architecture for Salesforce Apex development. This skill provides framework-agnostic guidance for building robust, secure, and performant Apex code u

Build and maintain apex articles—human-readable synthesis pieces.

APEX Methodology

Generates premium dark-mode UI for Apex OS wellness app (React Native + Expo 54). Use when designing screens, creating components, making layout decisions, generating data visualizations, or writing frontend code. Covers color system, typography, motion, haptics, and component patterns for a Bloomberg-meets-Calm aesthetic. References APEX_OS_PRD_v8.1.md for product logic and APEX_OS_BRAND_GUIDE.md for voice.

Generate real estate marketing videos from property data. Use when creating property showcases, social media content, market reports, or neighborhood tours. Integrates Firecrawl scraped data with Remotion rendering.

Apex - Senior Product Marketing Manager & CSO specializing in B2B/B2C IT Products & SaaS. Use for Go-To-Market strategies, product positioning, growth funnels, IT product copywriting, SEO content strategy, or marketing analytics. Also responds to 'Apex' or /apex command.

Create API agents that wrap external HTTP services (n8n, LangGraph, CrewAI, OpenAI endpoints). Configure request/response transforms, webhook status tracking, A2A protocol compliance. CRITICAL: Request transforms use template variables ({{userMessage}}, {{conversationId}}, etc.). Response transforms use field extraction. Status webhook URL must read from environment variables.

Expert API designer for REST, GraphQL, gRPC architectures. Activate on: API design, REST API, GraphQL schema, gRPC service, OpenAPI, Swagger, API versioning, endpoint design, rate limiting, OAuth flow. NOT for: database schema (use data-pipeline-engineer), frontend consumption (use web-design-expert), deployment (use devops-automator).

REST, GraphQL, and hybrid API architecture patterns for building scalable and maintainable APIs

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

Implement secure API authentication with JWT, OAuth 2.0, API keys, and session management. Use when securing APIs, managing tokens, or implementing user authentication flows.

Secure API authentication with JWT, OAuth 2.0, API keys. Use for authentication systems, third-party integrations, service-to-service communication, or encountering token management, security headers, auth flow errors.

REST API design patterns, OpenAPI specifications, versioning strategies, authentication, error handling, and security best practices. Use when designing APIs, creating endpoints, documenting APIs, or implementing backend services that expose HTTP APIs.

Comprehensive API design and development workflow that orchestrates API architecture, endpoint design, documentation generation, and integration patterns. Handles everything from RESTful API creation and GraphQL schema design to API gateway setup and version management.

EntityController<T>, custom routes, payload transformers, auth policies

Creates comprehensive API changelogs documenting breaking changes, deprecations, and migration strategies for API consumers. Use when managing API versions, communicating breaking changes, or creating upgrade guides.

FastAPI 엔드포인트 상태 점검. async 패턴, Pydantic 모델, 캐싱, 에러 핸들링 검토

Creating API clients with OpenAPI specs, authentication, and OAuth scopes for SCAPI and similar APIs

name: api-client-generator

HTTP client patterns, API integration, request/response handling, error handling, retry logic, axios usage. Use when building API clients, integrating external services, handling API errors, or making HTTP requests.

REST API client builder with authentication, error handling, retry logic, and request management. Supports OAuth, JWT, API keys. Use when building API integrations, creating API clients, or working with REST services.

Centralized TypeScript API client with typed namespaces, automatic token refresh with request deduplication, TanStack Query integration, and consistent error handling.

Use when working with api-codegen-runner

Use when working with api-codegen-universal

API client code generation workflow. Use when modifying backend routes, response schemas, or request models. Automatically regenerates TypeScript API client from OpenAPI schema.

Connect to REST APIs, manage authentication, and process responses. Use for API integration tasks.

Use this when changing REST endpoints so Rust DTOs, UI DTOs, OpenAPI, and docs stay in sync.

Design APIs using schema-first approach with OpenAPI/Swagger. Use when creating new APIs, documenting existing ones, or when frontend/backend teams need to work in parallel. Covers OpenAPI spec, validation, and code generation.

Validates REST API implementations against OpenAPI 3.x specifications. Use when (1) Implementing or reviewing API endpoints, (2) Before deploying API changes to production, (3) Ensuring contract compliance between spec and implementation, or (4) Debugging API integration issues caused by contract mismatches. Works with Python (FastAPI/Flask) backends.

Generate production-ready CRUD API endpoints with validation and type safety.

Validate OpenAPI, Swagger, and GraphQL schemas match backend implementation. Detect breaking changes, generate TypeScript clients, and ensure API documentation stays synchronized. Use when working with API spec files (.yaml, .json, .graphql), reviewing API changes, generating frontend types, or validating endpoint implementations.

Use this skill when backend API contracts change and frontend types need synchronization. Triggers on: Pydantic model changes, REST endpoint updates, WebSocket message formats, or GraphQL schema modifications. Dynamically detects contract type from context. NOT for unrelated type definitions or internal backend-only changes.

Verifies API contracts between services using consumer-driven contracts, schema validation, and tools like Pact. Use when testing microservices communication, preventing breaking changes, or validating OpenAPI specifications.

Detect breaking changes in API contracts (OpenAPI/Swagger specs)

Validates type contracts between TypeScript interfaces and Pydantic models. Detects field mismatches and type inconsistencies. Related: frontend-backend-mapper for endpoint discovery.

Define and validate API contracts using Zod

Generate Zod schemas and TypeScript types for forms, API routes, and Server Actions with runtime validation. Use this skill when creating API contracts, validating request/response payloads, generating form schemas, adding input validation to Server Actions or route handlers, or ensuring type safety across client-server boundaries. Trigger terms include zod, schema, validation, API contract, form validation, type inference, runtime validation, parse, safeParse, input validation, request validation, Server Action validation.