Skill UI

Master the architecture of reliable distributed systems using advanced workflow orchestration patterns. This guide covers fundamental design decisions, including the distinction between Workflows and Activities, and introduces critical patterns like Saga for distributed transactions, Entity Workflows, and Fan-Out/Fan-In. Learn best practices for handling long-running processes, state persistence, and failure recovery to build robust business logic.

A guide to building robust, type-safe, and highly testable backend services using functional programming patterns in Node.js or Deno. This pattern utilizes fp-ts and ReaderTaskEither to manage dependency injection, compose complex business logic, and handle typed errors gracefully, promoting clean service layer architecture.

A comprehensive guide for advanced penetration testing designed to identify flaws in application business rules that automated scanners miss. Focus areas include price manipulation, workflow bypass, privilege escalation, and race conditions. Essential for securing e-commerce platforms, financial systems, and multi-step critical processes.

Automatically reverse-engineers any codebase (frontend, backend, or fullstack) into a comprehensive Product Requirements Document (PRD). It analyzes complex elements like routes, components, API integrations, state management, and business logic across major stacks (React, Vue, Next.js, Django, FastAPI). The resulting PRD is detailed enough for both product managers (understanding 'what') and engineers/AI agents (understanding 'how' to reconstruct the system).

This guide details the Hexagonal Architecture (Ports and Adapters) pattern, a robust method for decoupling core business logic from external infrastructure concerns. It teaches how to structure applications to make the domain model independent of databases, UI frameworks, or message queues. Implementing this pattern drastically improves testability, maintainability, and the ability to swap out external services without rewriting business rules.

This skill guides the creation of highly persuasive sales pitches, investor decks, and presentations using established principles of behavioral psychology. It utilizes a 'Desire-Then-Solution Arc' structure, ensuring that the audience first connects with the problem and the aspiration (building desire) before the solution is presented, thereby maximizing buy-in and making the offer feel inevitable. Ideal for critical business communications.

Automates the generation of robust, DB-agnostic integration test cases for data access layers (DAL) during major database migrations, specifically from Oracle to PostgreSQL. These tests validate behavioral consistency across both source and target database systems, ensuring that core business logic remains intact after the migration process. Essential for maintaining data integrity and application stability.

A comprehensive toolkit designed to automate core Shopify operations via Rube MCP. It provides structured workflows for managing all key aspects of an e-commerce store, including products (listing, creation), orders (tracking, retrieval), customers, collections, and inventory levels. Utilizes direct tool calls for listing, searching, and bulk operations, making it ideal for integrating complex business logic into automated systems.

This skill guides the integration of Arize AX tracing into existing applications, especially complex LLM applications. It follows a structured, two-phase, agent-assisted flow: first analyzing the codebase (read-only) to understand dependencies, and then implementing instrumentation. It supports multi-language environments (Python, TypeScript, Java, Go) and integrates deeply with OpenTelemetry and various LLM providers, ensuring comprehensive observability without altering core business logic.

A comprehensive reference architecture for building robust and scalable supply chain integrations with Flexport's logistics API. It outlines a structured pipeline using Ingest (webhooks/polling), Core (business logic services), and Expose (REST API/Dashboard layers), ensuring reliable data flow, caching, and queueing best practices.

This skill transforms the agent into a senior strategic consultant, specializing in Philip Kotler’s macro-marketing environment analysis. It systematically evaluates PESTEL factors (Political, Economic, Social, Technological, Environmental, Legal) and synthesizes them into a high-impact SWOT matrix. Use this for market entry research, periodic strategic audits, or validating business assumptions against real-time macro-economic indicators.

A comprehensive methodology and checklist for identifying and exploiting race conditions (TOCTOU) in web applications. It guides users to find timing windows, detect vulnerabilities like double-spend or rate limit bypass, and exploit concurrent request flaws in state-changing business logic. Essential for penetration testing and bug bounty hunting.