Comprehensive guide for building Solana apps with @solana/kit (web3.js 2.0). Use when you need modern RPC/subscriptions, transaction building, signing, and program interactions in JavaScript/TypeScript.

Comprehensive backend development guide for Langfuse's Next.js 14/tRPC/Express/TypeScript monorepo. Use when creating tRPC routers, public API endpoints, BullMQ queue processors, services, or...

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External research workflow for docs, web, APIs - NOT codebase exploration

External research workflow for docs, web, APIs - NOT codebase exploration

Expertise in Go programming according to the Google Go Best Practices. Focuses on actionable advice for naming, error handling, performance, testing, and general idiomatic Go to ensure...

Build fast applications with Bun JavaScript runtime. Use when creating Bun projects, using Bun APIs, bundling, testing, or optimizing Node.js alternatives. Triggers on Bun, Bun runtime, bun.sh,...

Build fast applications with Bun JavaScript runtime. Use when creating Bun projects, using Bun APIs, bundling, testing, or optimizing Node.js alternatives. Triggers on Bun, Bun runtime, bun.sh,...

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,...

非推奨ライブラリの検出、ネイティブAPI置換提案、新技術のPoC作成。技術スタック刷新、モダナイゼーション、レガシーコード更新が必要な時に使用。

Guide for Vercel AI SDK v6 implementation patterns including generateText, streamText, ToolLoopAgent, structured output with Output helpers, useChat hook, tool calling, embeddings, middleware, and...

This skill should be used when the user asks to "build a mac app", "swift build", "create .app bundle", "code sign", "notarize app", "xcode-free development", or needs guidance on SwiftUI macOS...

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,...

Multi-step deployment agent for full-stack apps. Build → Test → GitHub → Cloudflare Pages with human approval at each step.

Develop ICP canister backends using Motoko. Covers actors, types, async patterns, stable memory, upgrades, access control, and error handling. Use when writing Motoko code, creating canisters,...

Master markdown formatting, GitHub Flavored Markdown, README files, and documentation formatting. Use when writing markdown docs, READMEs, or formatting documentation.

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Expert knowledge for testing Substreams applications. Covers unit testing, integration testing, performance testing, and FireCode tools usage.

Generates custom design system rules for the user's codebase. Use when user says "create design system rules", "generate rules for my project", "set up design rules", "customize design system...

Generates custom design system rules for the user's codebase. Use when user says "create design system rules", "generate rules for my project", "set up design rules", "customize design system...