AI agents and Nix: parametrable skills/instructions and tools, packaged together in a reproducible and modular fashion

MCP (Model Context Protocol) server building principles. Tool design, resource patterns, best practices.

ユーザーインタビュー設計・質問ガイド作成、ユーザビリティテスト計画、定性データ分析、ペルソナ作成・ジャーニーマップ作成。ユーザーリサーチ設計・分析が必要な時に使用。EchoのUI検証を補完。

ユーザビリティ改善、インタラクション品質向上、認知負荷軽減、フィードバック設計、a11y対応。UXの使い勝手を良くしたい、操作感を改善したい時に使用。

TypeScript standards and best practices with modern tooling. Use when working with TypeScript or TypeScript React files.

A collection of tools for making navigation in Swift applications more ergonomic and powerful across SwiftUI, UIKit, and AppKit

Build and configure the GTM tech stack - tool selection, integrations, and data flows that power prospecting, outbound, and analytics

Build Model Context Protocol servers and implementations. Creates protocol-compliant tools and integrations for AI-powered applications.

Create vector graphics with Illustrator on the web - design logos, icons, and illustrations with AI-powered tools

Type-safe CLI argument parser with MCP integration Zod validation and auto-generated tools

Expert in Model Context Protocol server/client implementation, tool registration, transport layers, and secure MCP integrations

Research SEO metrics and domain authority with Moz's SEO tools.

Use when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions

Daniel Kahneman's cognitive psychology framework for understanding decision-making, biases, and judgment.

Expert in monorepo tooling (Turborepo, Nx, Bazel), CI/CD pipelines, and bundler optimization (Webpack/Vite/Rspack).

Add a React + WebSocket UI on top of Claude Agent SDK agents with tool approval and SQLite persistence

Terminal-style React UI for Claude Agent SDK with keyboard navigation, tool approval, and dark theme

A high-precision editorial skill focused on the case-sensitive orthography, brand consistency, and terminological correctness of industry tools, languages, and frameworks.

Test skill that exercises the Task tool system to create and manage tasks

Cohere LangGraph agents reference for building ReAct agents, multi-tool workflows, agents with memory, and human-in-the-loop patterns. Covers both prebuilt and custom agent architectures.