IDE & Editors

Implement changes from a provided Markdown issue/requirements file, then review the implementation for major issues and iterate until the review passes. Use when the user wants a workflow that takes an .md file path as input, applies code changes based on the file contents, and performs a self-review loop.

Advanced frontend web development expert system that provides comprehensive modern web development services including architecture design, UI/UX implementation, performance optimization, engineering setup, and cross-platform development through expert collaboration and intelligent tool integration.

Provides a structured template for Pull Request descriptions. Use when creating PRs, triggered by requests like "create a PR", "make a pull request", or "open a PR".

This skill should be used when designing system architecture, making architectural decisions, or evaluating design patterns. It provides guidance on common patterns, ADR templates, design principles, and tradeoff analysis.

This skill should be used when the user asks to "debug E2E tests", "fix Playwright failures", "fix Cypress tests", "analyze timeout errors", or mentions keywords like "Playwright", "Cypress", "Timeout exceeded", "locator", "selector", "flaky test". It provides the complete bugfix workflow knowledge including error classification, confidence scoring, and E2E-specific debugging techniques.

Comprehensive guide and tool for creating OpenCode skills with validation

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations. | 効果的なスキルを作成するためのガイド。専門知識、ワークフロー、ツール統合によってClaudeの能力を拡張する新しいスキルを作成（または既存スキルを更新）したい場合に使用

Extract and analyze recurring patterns from log messages, span names, and event names using punctuation-based template discovery. Use when you need to understand log diversity, identify common message structures, detect unusual formats, or prepare for log parser development. Works by removing variable content and preserving structural markers.

Python debugging techniques, pdb, and IDE debugging tools

Use when specifying or implementing LangGraph applications - from architecture planning and specification writing to actual code implementation. Also use for designing agent workflows or learning LangGraph patterns. This is a comprehensive guide for building AI agents with LangGraph, covering core concepts, architecture patterns, memory management, tool integration, and advanced features.

Guides Next.js 16 / React 19 development. Use when package.json contains 'next' or next.config.* is detected. Supports App Router, Server Components, Cache Components, strict TypeScript, Tailwind CSS v4, Prisma ORM, and Vitest.

Expert at organizing and managing documentation structure across projects. Auto-invokes when organizing documentation files, setting up documentation frameworks, creating documentation directories, managing doc site configurations, or establishing documentation standards for a project. Provides guidance on documentation architecture and tooling.

Use this skill when debugging frontend test failures (React/TypeScript, Vitest, etc.), fixing bugs in React/TypeScript code, or following TDD methodology for frontend bug fixes. This skill provides the complete bugfix workflow knowledge including error classification, confidence scoring, and TDD best practices.

Provides expertise in converting Figma designs to HTML/CSS using Figma MCP tools, with data attributes for content tracking and comprehensive analysis. Use when converting Figma designs to web code.

This skill should be used when the GM needs to help players create Daggerheart characters, select a class/ancestry/community, define Experiences with bounded constraints, choose domain cards, or handle level advancement (1-10). Provides templates for character sheets, session state, and Experience definitions to prevent semantic drift during gameplay.

Expert Neovim/Lua configuration assistant for NOE.ED (LazyVim-based setup). Covers plugin configuration, LSP setup, keymaps, Mason, TreeSitter, and troubleshooting. Trigger with: neovim skill, lua skill, nvim skill, neoed skill, lazy skill (or plurals). Use for: LSP config help, error troubleshooting, keymap creation, plugin setup, theme customization.

Practical application guide for HUMMBL's 6 transformations (Perspective, Inversion, Composition, Decomposition, Recursion, Meta-Systems). Includes when to use each transformation, combination patterns, analysis templates, output formats, real-world examples, and common pitfalls. Essential for applying mental models effectively in problem-solving and analysis.

Analyze YouTube videos to generate viral video ideas and scripts. Use when given YouTube URLs to research, when asked to analyze competitors, generate video ideas from existing videos, or create a script based on what works. Accepts 1-10 YouTube video links.

Generate nested AGENTS.md coding guidelines per module (monorepo-aware), detect languages/tooling, ask architecture preferences, and set up missing formatters/linters (Spotless for JVM).

Complete 11-phase guide for building production-ready MCP (Model Context Protocol) servers with semantic layer integration. Covers foundation to deployment, including agent-centric design, tool development, testing, error handling, performance optimization, monitoring, security, governance, and semantic layer integration for business metrics. Use when building enterprise-grade MCP servers that integrate with dbt, Tableau, or other semantic layers for Finance SSC, business analytics, or data governance use cases.