Development skills

将基于旧版Nest库（1.x）的C#代码迁移升级到新版Nest库（7.17.5），涵盖API变更、查询语法重构、Source过滤、聚合更新及MultiSearch逻辑重写。

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将JavaScript对象转换为URL查询字符串（key=value格式）并拼接到基础URL中。

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编写Python脚本，实现每天定时从MongoDB获取数据，进行Gzip压缩，并通过HTTP POST请求同步到指定URL，同时处理BytesIO二进制传输错误。

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针对金融K线OHLC数据进行降维分析，包括数据预处理（变化率计算、标准化）、标准PCA降维以及基于随机化SVD的伪PCA降维的Python实现步骤。

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分析Java代码片段以判断特定变量（如URL、API接口）是否可控，通过追踪数据来源和流向评估安全风险。

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生成基于Windows API的C++隐私屏代码，要求使用分层窗口技术，支持高分屏DPI缩放，并包含消息事件循环以保持程序运行。

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Use when completing tasks, implementing major features, or before merging to verify work meets requirements

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开发运行在Android 11上的C++程序，仿照logcat功能，通过NDK Android Logger API从logd读取日志。

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Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes

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Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification

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React Native and Expo best practices for building performant mobile apps. Use when building React Native components, optimizing list performance, implementing animations, or working with native modules. Triggers on tasks involving React Native, Expo, mobile performance, or native platform APIs.

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React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.

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Debug LangChain and LangGraph agents by fetching execution traces from LangSmith Studio. Use when debugging agent behavior, investigating errors, analyzing tool calls, checking memory operations, or examining agent performance. Automatically fetches recent traces and analyzes execution patterns. Requires langsmith-fetch CLI installed.

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Converts Markdown to styled HTML with WeChat-compatible themes. Supports code highlighting, math, PlantUML, footnotes, alerts, and infographics. Use when user asks for "markdown to html", "convert md to html", "md转html", or needs styled HTML output from markdown.

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Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation

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Formats plain text or markdown files with frontmatter, titles, summaries, headings, bold, lists, and code blocks. Use when user asks to "format markdown", "beautify article", "add formatting", or improve article layout. Outputs to {filename}-formatted.md.

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Build with OpenAI's stateless APIs - Chat Completions (GPT-5, GPT-4o), Embeddings, Images (DALL-E 3), Audio (Whisper + TTS), and Moderation. Includes Node.js SDK and fetch-based approaches for Cloudflare Workers. Use when: implementing chat completions with GPT-5/GPT-4o, streaming responses with SSE, using function calling/tools, creating structured outputs with JSON schemas, generating embeddings for RAG (text-embedding-3-small/large), generating images with DALL-E 3, editing images with GPT-Image-1, transcribing audio with Whisper, synthesizing speech with TTS (11 voices), moderating content (11 safety categories), or troubleshooting rate limits (429), invalid API keys (401), function calling failures, streaming parse errors, embeddings dimension mismatches, or token limit exceeded.

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Apply systematic performance optimization techniques when writing or reviewing code. Use when optimizing hot paths, reducing latency, improving throughput, fixing performance regressions, or when the user mentions performance, optimization, speed, latency, throughput, profiling, or benchmarking.

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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).

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Expert in integrating third-party APIs with proper authentication, error handling, rate limiting, and retry logic. Use when integrating REST APIs, GraphQL endpoints, webhooks, or external services. Specializes in OAuth flows, API key management, request/response transformation, and building robust API clients.

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Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.

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多线程并发开发大师——从goroutine/async到分布式锁的完整实战指南。覆盖：Go并发模型、Python async/await、Node.js事件循环、Java虚拟线程、线程安全设计模式、锁策略、无锁编程、并发测试。触发词：并发、多线程、goroutine、async/await、线程安全、锁、race condition、deadlock、互斥锁、Channel、协程、同步原语

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查询监控 API 供应商/服务的额度、余额、消耗情况。支持官方供应商(Gemini/xAI/ZAI/Minimax/OpenRouter等)、中转站(AIXN/Provider-A等)、订阅服务(Brave/Tavily/Serper)。触发词：查额度、查余额、API用量、供应商额度、quota、balance、usage、billing。

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查询 API 供应商的余额、用量与可用状态，支持多供应商监控与定时汇报。

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