Guidelines for developing with Deno and TypeScript using modern runtime features, security model, and native tooling

MoSCoW prioritization categorizing items as Must have, Should have, Could have, or Won't have. Use for scope definition, feature prioritization, or when everything feels equally important.

Kotlin/Spring Boot patterns for Orca service - use when implementing backend features, writing services, repositories, or controllers

Guidelines for building modern APIs with Koa.js and TypeScript, featuring the onion middleware model and async/await patterns

Required methodology for planning, ideating, and delivering features or tasks. Use when user asks to "plan", "break down", "continue", or "figure out steps".

Create OpenSpec change proposals. Use when: user wants to plan a feature, create a proposal, or start a new OpenSpec change.

Guide for Claude Code skills installation, usage, and development. Use when working with Claude Code specific features, paths, and conventions.

JOOQ type-safe SQL patterns - use for database queries, repositories, complex SQL operations, and PostgreSQL-specific features

Language-agnostic coding principles for maintainability, readability, and quality. Use when implementing features, refactoring code, or reviewing code quality.

RICE prioritization scoring initiatives by Reach, Impact, Confidence, and Effort. Use for feature prioritization, roadmap planning, or when comparing initiatives objectively.

Use when fetching dbt documentation, looking up dbt features, or answering questions about dbt Cloud, dbt Core, or the dbt Semantic Layer

Analyze Polymarket traders, identify profitable traders to follow, and track their performance. Use when building copy trading features or trader discovery.

Phoenix framework development guidelines covering LiveView, Ecto, real-time features, and best practices for building scalable web applications with Elixir.

Mac cleanup & optimization tool combining CleanMyMac, AppCleaner, DaisyDisk features. Deep cleaning, smart uninstaller, disk insights, and project artifact purge.

Building applications with Large Language Models - prompt engineering, RAG patterns, and LLM integration. Use for AI-powered features, chatbots, or LLM-based automation.

Building applications with Large Language Models - prompt engineering, RAG patterns, and LLM integration. Use for AI-powered features, chatbots, or LLM-based automation.

Building applications with Large Language Models - prompt engineering, RAG patterns, and LLM integration. Use for AI-powered features, chatbots, or LLM-based automation.

Security best practices for secure coding, authentication, authorization, and data protection. Use when developing features that handle sensitive data, user authentication, or require security review.

Design system skills for modern Apple platform UI including Liquid Glass, animations, and visual design patterns. Use when implementing new design language features.

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification