All Skills

Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices. Use when creating Node.js servers, REST APIs, GraphQL backends, or microservices architectures.

阿里云 CLI 操作

Get best practices for TUnit unit testing, including data-driven tests

Ensure .NET/C# code meets best practices for the solution/project.

Use when the user needs detailed hcloud CLI reference documentation beyond what the focused skills provide, or when looking up obscure commands, flags, or advanced usage patterns. This skill provides an index to the full bundled reference manual.

Audience intelligence analyst for deriving segmentation, persona profiles, and decision-journey insights from brand and product context. Use when users request market targeting, buyer persona definition, or messaging-angle analysis.

Get best practices for NUnit unit testing, including data-driven tests

Guides unit testing for Python DDD + Onion Architecture apps (Domain Entities/Value Objects and UseCases) using pytest and repository mocks, based on the dddpy reference. Use when adding tests, choosing what to mock, or structuring test folders for a DDD FastAPI project.

Get best practices for MSTest 3.x/4.x unit testing, including modern assertion APIs and data-driven tests

Testing machine learning models including accuracy validation, bias detection, drift monitoring, A/B testing, and model regression testing.

This skill should be used when the user asks about Rails philosophy, DHH's principles, the Rails way, "convention over configuration", "majestic monolith", "omakase", "sharp knives", NO BUILD, integrated systems, programmer happiness, or general Rails 8 design principles. Also use when discussing why Rails makes certain architectural decisions or when comparing Rails approaches to alternatives. Examples:

Adaptive brainstorming-style dialogue for all spec phases (Understand, Propose Approaches, Confirm & Store)

React/TypeScript frontend development rules including type safety, component design, state management, and error handling. Use when implementing React components, TypeScript code, or frontend features.

Reviews draft tweets and provides engagement optimization recommendations with improved alternatives. Use when the user has a draft tweet or thread and wants feedback on how to maximize reach, replies, and engagement on Twitter/X. Primarily niche-agnostic with additional guidance for tech Twitter.

Generates creative domain name ideas for your project and checks availability across multiple TLDs (.com, .io, .dev, .ai, etc.). Saves hours of brainstorming and manual checking.

Sprint Board atomic operations: add Story, update Task, archive completed Stories

[AUTO-INVOKE] MUST be invoked BEFORE writing or modifying any Solidity contract (.sol files). Covers pragma version, naming conventions, project layout, OpenZeppelin library selection standards, oracle integration, and anti-patterns. Trigger: any task involving creating, editing, or reviewing .sol source files.

Create or refactor a React ATOM component (smallest reusable UI primitive). Use for buttons, inputs, icons, text, badges, loaders, etc. Keep atoms presentational and composable.

Build end-to-end MLOps pipelines from data preparation through model training, validation, and production deployment. Use when creating ML pipelines, implementing MLOps practices, or automating model training and deployment workflows.

Dependency management specialist. Use when updating dependencies, scanning

Frontend testing rules with Vitest, React Testing Library, and MSW. Includes coverage requirements, test design principles, and quality criteria. Use when writing frontend tests or reviewing test quality.

Automate Zyte API tasks via Rube MCP (Composio). Always search tools first for current schemas.

Prevent N+1 queries by eager loading; enable lazy-loading protection in non-production; choose selective fields

Analyzes your recent Claude Code chat history to identify coding patterns, development gaps, and areas for improvement, curates relevant learning resources from HackerNews, and automatically sends a personalized growth report to your Slack DMs.