Skill UI

This skill details the fundamental architecture of computer use agents, following the Perception-Reasoning-Action loop. It shows how to integrate vision models with desktop control using Python, simulating screen observation, planning, and action execution (mouse/keyboard). Crucially, it mandates and demonstrates best practices for running these agents within secure, isolated, sandboxed environments (e.g., using Docker, seccomp, and resource limits) to minimize security risks and ensure reliable deployment.

Guides the implementation of Command Query Responsibility Segregation (CQRS) for highly scalable and robust software architectures. Use this pattern when read and write operations have fundamentally different scaling needs, when building event-sourced systems, or when optimizing complex query performance by separating the data models.

Helps marketers apply psychological principles and mental models to understand why people buy, ethically influence behavior, and make better marketing decisions.

This skill provides a comprehensive set of cross-language patterns and best practices for achieving memory-safe systems programming. It covers fundamental concepts such as RAII, ownership models, smart pointers, and robust resource management. Use this guide when writing low-level or systems code, managing critical resources (files, sockets, memory), or debugging complex memory issues to prevent use-after-free errors and memory leaks.

Delivers expert mental models and practical patterns for Cassandra, DynamoDB, and similar wide-column/key-value stores, guiding query-first modeling, single-table design, partition strategy, and duplication trade-offs for scalable systems.

Guides Claude into ultra-granular, line-by-line analysis before hunting vulnerabilities, enforcing first principles, 5 Whys/Hows, and explicit mental models to map invariants, assumptions, and flows across functions and external calls for secure architecture reviews.

This skill provides expert guidance on applied behavioral science for marketing. It helps users analyze conversion roadblocks, optimize pricing, and improve copywriting by applying 70+ established psychological principles and mental models. Ideal for CRO specialists, marketers, and product managers seeking data-backed, psychologically informed strategies.