Skill UI

This utility serves as a Codex CLI alias, mapping specifically to the Claude Code `/pua:offline` command. It enables offline operation mode for developer tools by updating the user's configuration file (~/.pua/config.json). Use this for developers needing to simulate or operate in environments with limited connectivity, ensuring continued access to code assistance features.

This skill guides the entire chaotic engineering lifecycle, enabling teams to design safe, controlled experiments that surface weaknesses in production systems without causing actual outages. It provides tools for defining hypotheses, calculating blast radius (risk assessment), and generating structured post-mortem reports. Essential for SRE teams, Game Days, and validating system resilience.

A comprehensive discipline for managing feature flags across their entire lifecycle: design, rollout, testing, and retirement. This skill provides tools to audit for flag debt, plan progressive rollouts using strategies (ring, linear, log), and verify the existence of kill switches. It helps teams move beyond treating flags as simple 'if' statements and manage them as measurable architectural components.

A comprehensive skill for building, auditing, and linting custom Kubernetes Operators. Focuses specifically on the Operator pattern, ensuring controllers correctly implement declarative reconcile loops. Tools validate Custom Resource Definitions (CRD) against best practices, catch common reconciliation bugs (like status drift or blocking calls), and score operators against industry capability levels.

This guide assists developers in building robust Model Context Protocol (MCP) servers and clients using C#/.NET. It specifically targets the stable 1.x NuGet packages, providing detailed instructions for configuring various transports (STDIO, Streamable HTTP), defining custom tools, prompts, and resources. It helps solve common integration issues like stale preview pinning, complex HTTP wiring, and structured content handling, ensuring production-ready, standard-compliant code.

Comprehensive patterns and tools for writing robust tests for F# applications within the modern .NET ecosystem. This guide covers unit testing (xUnit, FsUnit), property-based testing (FsCheck), mocking dependencies (NSubstitute), and full integration testing (WebApplicationFactory). Ideal for improving test coverage, validating complex business logic, and establishing a resilient testing infrastructure.

Expert skill for building Model Context Protocol (MCP) servers and tools from scratch. Covers the full development lifecycle—from defining tool schemas and resources to implementation, testing, and publishing to registries. Supports robust patterns using TypeScript and Python for integrating custom capabilities into AI agents.

This skill provides an end-to-end solution to transform existing REST APIs, defined by OpenAPI or Swagger specifications, into functional MCP servers. It maps every API operation to a dedicated, callable LLM tool, automatically generating robust parameter schemas (Zod) and handling authentication wiring. Use this to expose internal or third-party APIs to LLMs, providing a complete workflow from spec ingestion to local testing and cloud deployment.

This skill provides a comprehensive solution for embedding the powerful, Photoshop-compatible Photopea editor into any web application. Using photopea.js, developers can control the embedded instance via JavaScript, enabling advanced workflows such as opening remote files, loading local assets (fonts, brushes), executing custom scripts to manipulate layers and text, and exporting the final result in various formats (PNG, JPG, PSD, WebP). Ideal for building professional creative tools directly into your product.