Skill UI

This skill covers the principles of building Software Development Kits (SDKs) that provide an exceptional developer experience (DX). Learn how to design intuitive APIs, utilize progressive disclosure, establish sensible defaults, and implement actionable, guiding error messages. The focus is on driving product adoption by making the developer's workflow seamless and productive. Ideal for product managers, technical leads, and API designers.

This guide provides comprehensive, structured error handling patterns for modern applications using TypeScript, Python, and general architectural principles. It covers essential concepts like typed custom errors, Result patterns, API error transformers, and React Error Boundaries. Learn how to implement fail-fast mechanisms, differentiate user-facing messages from developer logs, and ensure system resilience against unexpected failures.

A deep-dive methodology for authorized penetration testing targeting dependency confusion and namespace resolution vulnerabilities across major package ecosystems (npm, PyPI, NuGet, Maven, etc.). This skill details advanced reconnaissance techniques, from analyzing lock files and source maps to exploiting error messages, alongside safe Proof-of-Concept (PoC) creation using DNS canaries for discovery during penetration engagements.

Low-level SDK for creating and managing persistent AI agents with threads, messages, runs, and tools in Java. Provides sync and async clients, authentication via DefaultAzureCredential, and workflows for agent creation, thread management, messaging, run execution with polling, and cleanup. Includes error handling and best practices for production use.

Expert in root cause analysis for errors, test failures, and unexpected behavior. Captures error messages, identifies reproduction steps, isolates failure locations, implements minimal fixes, and verifies solutions. Provides root cause explanations, evidence, code fixes, testing approaches, and prevention recommendations.

This skill focuses on designing Software Development Kits (SDKs) that developers enjoy using. It emphasizes creating APIs that feel native, providing helpful error messages, and reducing friction in the development process. The goal is to drive adoption through exceptional developer experience rather than aggressive marketing strategies.

Generate user interface microcopy such as button labels, error messages, empty states, and toast notifications. This skill ensures a casual-but-polite tone, active voice, and plain language to enhance user experience without defining the overall brand voice.

This skill generates appropriate user feedback states for components and pages, including loading skeletons, empty states, error messages, and success toasts. It ensures consistent UI presentation by implementing specific design patterns for data-dependent areas, handling partial or full failures, and providing retry mechanisms. It follows design language references for animations and accessibility, suitable for React-based frontend development workflows.

This skill explains compiler and runtime errors when users paste error messages. It reads the error and surrounding code, then provides explanations and fixes. Notably, explanations are always written in French regardless of the user's language. It also offers detailed examples if further clarification is requested.