axios
Promise-based HTTP client for making requests from browser and Node.js
TypeScript
Framework-focused TypeScript development with types, interfaces, generics, and utility types
TanStack Query v5
Powerful data fetching and state management library for React applications with server state synchronization, caching, and background updates.
uvicorn
ASGI server for Python web applications - Fast, production-ready server for async frameworks
turborepo
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react-email
Use when building HTML email templates with React components, adding a visual email editor to an application using the React Email visual editor, rendering emails to HTML, or sending emails with Resend. Covers welcome emails, password resets, notifications, order confirmations, newsletters, transactional emails, and the embeddable email editor component.
mysql
Plan and review MySQL/InnoDB schema, indexing, query tuning, transactions, and operations. Use when creating or modifying MySQL tables, indexes, or queries; diagnosing slow/locking behavior; planning migrations; or troubleshooting replication and connection issues. Load when using a MySQL database.
orpc-contract
Design oRPC v2 APIs contract-first, defining the API shape with oc from `@orpc/contract`, implementing it with implement from `@orpc/server`, and consuming the contract from typesafe clients. Use when a project depends on `@orpc/contract`, when defining a contract with oc, implementing a contract with implement, sharing an API contract between server and client packages, generating a contract from an existing OpenAPI spec, or publishing a typed API client to npm. Biases toward retrieval from the oRPC docs over pre-trained knowledge. For core builder, serving, and client work without a contract, use the orpc skill; for REST/OpenAPI exposure, spec generation, and OpenAPILink details, use the orpc-openapi skill.
orpc
Build, serve, and call end-to-end typesafe APIs with oRPC v2. Use for any task in a project that depends on `@orpc/*` packages, even a one-procedure change: defining procedures with the os builder (.input/.output/.handler, any Standard Schema validator), assembling routers, middleware and context, typesafe errors with ORPCError, serving via RPCHandler on any runtime adapter, calling from server-side clients (call, createRouterClient) or client-side clients (createORPCClient with RPCLink), integrating TanStack Query, or streaming over SSE. Pretrained oRPC knowledge describes v1 and is wrong for v2, so load this skill even when the change looks trivial. Biases toward retrieval from the oRPC docs over pre-trained knowledge. For REST/OpenAPI exposure, prefer the orpc-openapi skill; for contract-first design, the orpc-contract skill; for tRPC or oRPC v1 migrations, the orpc-migrate skill.
mcp-builder
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
newproject
Project bootstrap and repository baseline setup for new or existing codebases. Use when the user wants to scaffold a new project or upgrade a repository with foundation files, code quality tooling, release automation, CI, GitHub configuration, dependency management, and security scanning using the bundled templates, workflows, and scripts.
xhs-publisher
小红书创作者平台发布流程的详细知识和操作步骤
readiness
Evaluate repository readiness for AI agents. Analyzes 81 criteria across 8 pillars, assigns maturity level 1-5, generates visual report.
coding-guidance-cpp
C++ implementation and review skill. Use when writing, modifying, or reviewing C++ code — feature work, bug fixes, refactors, or code review. Portable across C++ repos and build systems.
backend-guidance
Overlay for server-side networked code — HTTP handlers, gRPC services, message consumers. Use alongside the repo's implementation skill when implementing or reviewing backend logic.
development-contract-core
Portable workflow for repos that require tracked change contracts, verifier evidence, and smallest-proof validation. Use when a repo has a contract policy file or enforced feature-plan checker.
documenter
Documentation skill for README, API docs, code comments, release docs, and AI-friendly project documentation.
frame-development-contract
Repo-local overlay for the development contract system in this frame. Use when work may trigger a tracked change contract and you need the repo's concrete policy, plan directory, or validation profiles.
project-config-and-tests
Generic overlay for config contracts, defaults, path helpers, and deterministic test coverage.
project-core-dev
Overlay for day-to-day feature work and bug fixes in repo-owned code. Provides a validation checklist for build, test, format, and analysis. Use alongside the repo's principle skill.
project-platform-diagnose
Overlay for environment-sensitive diagnosis — service startup, install issues, platform integration, and runtime smoke checks. Portable across C++ projects.
project-release-maintainer
Overlay for release-facing docs, install layout, workflows, licenses, and hygiene scripts. Portable across repos with a release/packaging pipeline. Use for publication-facing changes.
project-vendor-boundary
Overlay for app-owned versus vendored dependency boundaries. Portable across repos that vendor third-party code. Use when work touches vendored dependencies or their integration seam.
recursive-thinking
Recursive self-questioning heuristic for stress-testing a plan, diagnosis, design, review, or recommendation before acting. Use when the user asks to use recursive thinking, go deeper, interrogate assumptions, pressure-test an approach, ask why/how questions, or find what would change the conclusion. Avoid for simple factual lookups or low-ambiguity tasks.
security
Security skill for threat modeling, secure defaults, and security-focused code review in generic software projects.
thinking
Planning and design skill. Merges convergent planning, focused inquiry, and kaizen-style incremental improvement. Use for quick-to-medium planning tasks where structured thinking improves the outcome. Lighter than a full plan document — heavier than just asking the LLM to think.
ui-guidance
Overlay for graphical UI and web frontend code. Use alongside the repo's implementation skill when implementing or reviewing UI changes.
flipside
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web-browser
Allows to interact with web pages by performing actions such as clicking buttons, filling out forms, and navigating links. It works by remote controlling Google Chrome or Chromium browsers using the Chrome DevTools Protocol (CDP). When Claude needs to browse the web, it can use this skill to do so.
shadcn-ui-expert
Develop high-quality, accessible React components using shadcn-ui, Tailwind CSS, and Radix UI. Use when building forms, layouts, dialogs, tables, or any UI components. Supports Next.js, Vite, Remix, Astro, and more. Integrates with shadcn MCP server for component discovery and installation.
docker-deployment
Containerize and deploy Node.js applications with Docker including multi-stage builds, Docker Compose, and production optimization
error-handling
Implement robust error handling in Node.js with custom error classes, async patterns, Express middleware, and production monitoring
websockets
Implement real-time bidirectional communication with Socket.io and ws library for chat, notifications, and live dashboards
jest-testing
Test Node.js applications with Jest including unit tests, integration tests, mocking, code coverage, and CI/CD integration
streams
Master Node.js streams for memory-efficient processing of large datasets, real-time data handling, and building data pipelines
async-patterns
Master asynchronous programming in Node.js with Promises, async/await, streams, and event-driven patterns for efficient non-blocking operations
jwt-authentication
Implement secure JWT (JSON Web Token) authentication in Node.js applications with access/refresh tokens and role-based access control
mongoose-mongodb
Work with MongoDB in Node.js using Mongoose ODM for schema design, CRUD operations, relationships, and advanced queries
express-rest-api
Build production-ready RESTful APIs with Express.js including routing, middleware, validation, and error handling for scalable backend services
graphql
Build GraphQL APIs with Node.js using Apollo Server, type definitions, resolvers, and real-time subscriptions
nestjs
Build enterprise-grade Node.js applications with NestJS framework, TypeScript, dependency injection, and modular architecture
performance-optimization
Optimize Node.js application performance with caching, clustering, profiling, and monitoring techniques
rust-guidelines
Pragmatic Rust conventions to keep code readable, testable, and performant for this project.
bd-workflow
How to use bd (beads) for issue tracking, ready work, status updates, and comments in this repo.
lambda-workflow
One lifecycle for Lambda repos: choose a bd task, start work, land the PR, and watch GitHub via Dumbwaiter MCP until it merges.
dumbwaiter-mcp
Provider-agnostic wait-for-change skill that uses the Dumbwaiter MCP server to wait on PR events (GitHub first) via wait.start/status/cancel/await, with progress notifications and durable state.
testing-patterns
Testing patterns and standards for this codebase, including async effects, fakes vs mocks, and property-based testing.
template-skill
Replace with description of the skill and when Claude should use it.
sk
How to use the repo-scoped sk CLI to manage Claude Skills in this codebase.
oss-contribution-framework
Systematic framework for contributing to open source projects. Guides through issue discovery, integrated analysis with code exploration, implementation, and PR creation. Use when starting OSS contributions, analyzing issues, or creating pull requests. Includes modular sub-skills for each contribution phase.
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