IDE & Editors

Extract clean article content from URLs and save as markdown. Triggers when user provides a webpage URL and wants to download it, extract content, get a clean version without ads, or capture an article for offline reading. Handles blog posts, news articles, tutorials, documentation pages, and similar web content. This skill handles the entire workflow - do NOT use web_fetch or other tools first, just call the extraction script directly with the URL.

LOCAL-ONLY PyPI publishing with Doppler credential management. Use when publishing to PyPI from LOCAL machine ONLY. NEVER use in CI/CD pipelines. Workspace-wide policy enforces local publishing via scripts/publish-to-pypi.sh with CI detection guards.

Create distinctive, production-grade frontend interfaces with high design quality. Provides analysis tools for auditing existing designs and generation tools for creating color palettes, typography systems, design tokens, and component templates. Supports React, Vue, Svelte, and vanilla HTML/CSS. Use when building web components, pages, or applications. Keywords: design, UI, frontend, CSS, components, palette, typography, tokens, accessibility.

Interpretive guidance for Claude Code output styles - when they add value, when they don't, and how they relate to agents. Use when considering output styles or wondering if your workflow would benefit from them.

Comprehensive guide for Cloudflare Durable Objects - globally unique, stateful objects for coordination, real-time communication, and persistent state management.Use when: building real-time applications, creating WebSocket servers with hibernation, implementing chat rooms or multiplayer games, coordinating between multiple clients, managing per-user or per-room state, implementing rate limiting or session management, scheduling tasks with alarms, building queues or workflows, or encountering "do class export", "new_sqlite_classes", "migrations required", "websocket hibernation", "alarm api error", or "global uniqueness" errors.Prevents 15+ documented issues: class not exported, missing migrations, wrong migration type, constructor overhead blocking hibernation, setTimeout breaking hibernation, in-memory state lost on hibernation, outgoing WebSocket not hibernating, global uniqueness confusion, partial deleteAll on KV backend, binding name mismatches, state size limits exceeded, non-atomic migrations, loc

Spec-driven development methodology for ANY software project.USE WHEN developing features, fixing bugs, creating skills, or preparing releases.USE WHEN user mentions specs, testing, release process, change proposals, or deployment.Provides flexible spec tooling guidance but STRICT release discipline.

Backend AI functionality with Vercel AI SDK v5 - text generation, structured output with Zod,tool calling, and agents. Multi-provider support for OpenAI, Anthropic, Google, and Cloudflare Workers AI.Use when: implementing server-side AI features, generating text/chat completions, creating structuredAI outputs with Zod schemas, building AI agents with tools, streaming AI responses, integratingOpenAI/Anthropic/Google/Cloudflare providers, or encountering AI SDK errors like AI_APICallError,AI_NoObjectGeneratedError, streaming failures, or worker startup limits.Keywords: ai sdk core, vercel ai sdk, generateText, streamText, generateObject, streamObject,ai sdk node, ai sdk server, zod ai schema, ai tools calling, ai agent class, openai sdk, anthropic sdk,google gemini sdk, workers-ai-provider, ai streaming backend, multi-provider ai, ai sdk errors,AI_APICallError, AI_NoObjectGeneratedError, streamText fails, worker startup limit ai

Complete guide for OpenAI's Assistants API v2: stateful conversational AI with built-in tools(Code Interpreter, File Search, Function Calling), vector stores for RAG (up to 10,000 files),thread/run lifecycle management, and streaming patterns. Both Node.js SDK and fetch approaches.⚠️ DEPRECATION NOTICE: OpenAI plans to sunset Assistants API in H1 2026 in favor of Responses API.This skill remains valuable for existing apps and migration planning.Use when: building stateful chatbots with OpenAI, implementing RAG with vector stores, executingPython code with Code Interpreter, using file search for document Q&A, managing conversation threads,streaming assistant responses, or encountering errors like "thread already has active run", vectorstore indexing delays, run polling timeouts, or file upload issues.Keywords: openai assistants, assistants api, openai threads, openai runs, code interpreter assistant,file search openai, vector store openai, openai rag, assistant streaming, thread persistence,state

Guide for implementing Tailwind CSS - a utility-first CSS framework for rapid UI development. Use when styling applications with responsive design, dark mode, custom themes, or building design systems with Tailwind's utility classes.

Guides consistent, correct implementation of Stripe payment processing including payment flows, webhooks, subscriptions, and customer management. Use when integrating Stripe payments, setting up subscriptions, implementing webhooks, or managing customer billing.

Web scraping templates, scripts, and patterns for documentation and content collection using Playwright, BeautifulSoup, and Scrapy. Includes rate limiting, error handling, and extraction patterns. Use when scraping documentation, collecting web content, extracting structured data, building RAG knowledge bases, harvesting articles, crawling websites, or when user mentions web scraping, documentation collection, content extraction, Playwright scraping, BeautifulSoup parsing, or Scrapy spiders.

**MANDATORY USE - ALWAYS INVOKE THIS SKILL** when the user mentions ANY of these actions: "delete slide", "remove slide", "add slide", "insert slide", "create new slide", "new slide between", "get rid of slide", "fix gaps", "renumber slides", OR when they confirm/answer questions about slide deletion/addition (e.g., "yes delete slide 6", "add a slide after 5"). **CRITICAL - NEVER manually edit slides.md or rename slide files yourself** - this skill uses the manage-slides.py script which handles automatic renumbering, gap detection/fixing, git-aware operations, and slide number vs position conversion. **AUTO-TRIGGER IMMEDIATELY** when user wants to modify slide count, order, or numbering. This skill is the ONLY correct way to add/delete slides.

Provides module template with include guard, port ordering, and checklist. Triggers when creating a new svc_ module from scratch.

File concatenation with glob patterns guide

Expert code reviewer that enforces best practices, clean code principles, strong typing (TypeScript), architecture guidelines, and security standards. Reviews PRs and code snippets for bugs, code smells, anti-patterns, maintainability risks, performance issues, and security vulnerabilities. Use when reviewing pull requests, analyzing code quality, conducting code audits, or improving TypeScript/JavaScript codebases.

Create functional markdown documents with embedded interactive components for product team collaboration using the reactive-md VS Code extension. Use when generating product specs, design prototypes, feature wireframes, user flows, or interactive documentation. Specializes in teaching the 'live fence' methodology (css|jsx|tsx live) to replace Figma/Storybook workflows. NOT for production code—only for idea communication and rapid prototyping.

Shared resource library for Slack integration skills. DO NOT load directly - provides common references (setup, API docs, error handling, authentication) and scripts used by slack-connect and individual Slack skills.

Guide and tooling for creating Claude Skills. Use when creating new skills or to analyze, understand, evaluate, update, or modify existing skills. Features additional skills for Claude Code. Includes design, implementation, and delivery phases.

TypeScript/JavaScript development expert. Activates when writing .ts, .tsx, .js, .jsx files, discussing React, Vue, Node.js, Express, Next.js, or modern JavaScript/TypeScript patterns. Provides type-safe code, modern ES2023+ features, and framework best practices.

Common error patterns and troubleshooting guides for Kailash SDK including Nexus blocking issues, connection parameter errors, runtime execution errors, cycle convergence problems, missing .build() calls, parameter validation errors, and DataFlow template syntax errors. Use when encountering errors, debugging issues, or asking about 'error', 'troubleshooting', 'debugging', 'not working', 'hangs', 'timeout', 'validation error', 'connection error', 'runtime error', 'cycle not converging', 'missing build', or 'template syntax'.