Development

Debug crashes, segfaults, and memory errors using valgrind integration with nextest through pre-configured profiles

Profile code performance using callgrind and valgrind with nextest integration for analyzing instruction counts, cache behavior, and identifying bottlenecks

Orientation to facet-format JIT deserialization (tiering, fallbacks, key types/entry points) and where to look when changing or debugging JIT code

Orchestrate OpenAI Codex CLI for parallel task execution. As orchestrator, analyze tasks, inject context, manage sessions, and coordinate parallel instances. Use when delegating coding tasks to Codex or running multi-agent workflows. (user)

Review code using Linus Torvalds' "good taste" philosophy. Eliminates defensive code, special cases, and deep nesting. Use when reviewing code quality, refactoring, or checking for code smells.

Build an iPlug2 plugin project for different formats and platforms using xcodebuild or Visual Studio

Take a screenshot of the plugin UI using the standalone app CLI for debugging and documentation

Download iPlug2 dependencies including plugin format SDKs (VST3, CLAP, WAM) and optional Skia graphics backend libraries

Build an iPlug2 plugin project using CMake with Ninja, Xcode, or Visual Studio generators

Guide to the AsyncDrop pattern for async cleanup in Rust. Use when working with AsyncDropGuard, implementing AsyncDrop trait, or handling async resource cleanup.

Upgrade simple-icons to the latest version and preserve any removed icons by sourcing them from the previous version into common/icons/customIcons.ts and updating icon mappings. Use whenever bumping or upgrading simple-icons in this repo.

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.

Generate and edit images using the Gemini API (Nano Banana Pro). Use this skill when creating images from text prompts, editing existing images, applying style transfers, generating logos with text, creating stickers, product mockups, or any image generation/manipulation task. Supports text-to-image, image editing, multi-turn refinement, and composition from multiple reference images.

This skill should be used when working with DSPy.rb, a Ruby framework for building type-safe, composable LLM applications. Use this when implementing predictable AI features, creating LLM signatures and modules, configuring language model providers (OpenAI, Anthropic, Gemini, Ollama), building agent systems with tools, optimizing prompts, or testing LLM-powered functionality in Ruby applications.

Write Ruby and Rails code in DHH's distinctive 37signals style. Use this skill when writing Ruby code, Rails applications, creating models, controllers, or any Ruby file. Triggers on Ruby/Rails code generation, refactoring requests, code review, or when the user mentions DHH, 37signals, Basecamp, HEY, or Campfire style. Embodies REST purity, fat models, thin controllers, Current attributes, Hotwire patterns, and the "clarity over cleverness" philosophy.

Write Ruby gems following Andrew Kane's proven patterns and philosophy. Use when creating new Ruby gems, refactoring existing gems, designing gem APIs, or when the user wants clean, minimal, production-ready Ruby library code. Triggers on requests like "create a gem", "write a Ruby library", "design a gem API", or mentions of Andrew Kane's style.

This skill should be used when managing the file-based todo tracking system in the todos/ directory. It provides workflows for creating todos, managing status and dependencies, conducting triage, and integrating with slash commands and code review processes.

Expert guidance for creating, writing, building, and refining Claude Code Skills. Use when working with SKILL.md files, authoring new skills, improving existing skills, or understanding skill structure and best practices.

Analyze PR diffs and generate review comments from code quality, security, and performance perspectives. Use for code reviews, quality checks, and security analysis.