GitHub Copilot skills, plugins, subagents, slash commands and mcp servers

github-code-review ruvnet skill Runs a swarm of specialized AI agents to inspect GitHub pull requests for security, performance, and architecture issues. Claude Code CX Codex Cursor 1,300installs vue-expert https://github.com/Jeffallan skill Guides Vue 3 work with the Composition API, Nuxt 3, Pinia, and Vite. Use it for components, PWAs, and Quasar or Capacitor apps. Claude Code CX Codex Cursor 4,500installs rewardkit harbor-framework skill A skill for writing Harbor task verifiers with Reward Kit: programmatic criteria, LLM judges and a single reward score built from a tests/ directory. Claude Code CX Codex Cursor 1,300installs ads-apple AgriciDaniel skill Audits Apple Ads campaigns, AdServices and AdAttributionKit tracking, keyword structure, and bids. Useful for reviewing App Store acquisition and MMP reconciliation. Claude Code CX Codex Cursor 3,700installs telegram-mini-app sickn33 skill Skill for developing Telegram Mini Apps—web applications that run inside Telegram with a native-like experience. Covers Telegram Web App API, TON ecosystem, user authentication, and monetization through Telegram Stars. Claude Code CX Codex Cursor 1,700installs loopy Forward-Future skill Discovers recurring engineering work, turns it into bounded agent loops, and audits feedback cycles with strict stopping conditions. Claude Code CX Codex Cursor 3,100installs sharp-edges trailofbits skill Audits API designs and configuration schemas for developer footguns. Flags dangerous defaults and fragile interfaces where the easiest path causes security vulnerabilities. Claude Code CX Codex Cursor 6,900installs skill-forge sanyuan0704 skill A skill for building production-grade skills in Claude Code. Walks you through eight stages: from understanding the task to packaging, with checklists, iron laws, and writing techniques for reliable prompts. Claude Code CX Codex Cursor 4,100installs email-drafter official github skill This skill studies your email style and drafts messages for specific recipients. Use it when you need a reply or follow-up that sounds like your usual correspondence. 1,400installs langchain-rag langchain-ai skill Equips coding agents with reference RAG implementations in Python and TypeScript using LangChain loaders, splitters, and vector stores. Claude Code CX Codex Cursor 17,500installs gstack-openclaw-office-hours garrytan skill This skill turns your AI agent into a Y Combinator office hours partner to pressure-test product ideas. It enforces a strict rule against writing code and outputs a design doc. Claude Code CX Codex Cursor 300installs hugging-science K-Dense-AI skill A skill to find and evaluate scientific datasets, models, and interactive demos via the Hugging Science catalog. Use it when you need an ML resource for biology, chemistry, genomics, materials science, climate, or physics. Claude Code CX Codex Cursor 1,800installs ginkgo-cloud-lab K-Dense-AI skill Assists with protocol selection, input files, pricing checks, and orders for Ginkgo Bioworks Cloud Lab. Useful for RNA synthesis and automated protein expression. Claude Code CX Codex Cursor 1,800installs primekg K-Dense-AI skill Wraps the PrimeKG precision-medicine CSV in pandas helpers, so the agent can look up typed nodes, neighbours, disease summaries and short paths without leaving the repo. Claude Code CX Codex Cursor 1,800installs library-curator nexu-io skill Pulls images, logos and screenshots out of the OD Library and copies the file into your project, handing back a relative path you can drop into markup. Claude Code CX Codex Cursor 951installs debug-mantra thananon skill Sets a debugging sequence from reproducing a failure through testing hypotheses and recording experiments. Use it for errors, logs, and stack traces. Claude Code CX Codex Cursor 4,800installs langchain-fundamentals langchain-ai skill Guides LangChain agent work with create_agent(), tools, and middleware. Use it when you need saved conversation state, approval flows, or error handling. Claude Code CX Codex Cursor 17,400installs atlassian-mcp https://github.com/Jeffallan skill Skill connects Jira and Confluence to Claude Code, Cursor, and other editors through MCP protocol. Query tasks with JQL, create tickets, search and edit wiki pages directly from your IDE. Claude Code CX Codex Cursor 4,400installs the-fool https://github.com/Jeffallan skill Challenges plans, architectures, and decisions using five structured reasoning modes. Useful for spotting blind spots and failure modes before writing code. Claude Code CX Codex Cursor 4,400installs spec-miner https://github.com/Jeffallan skill A skill for reverse-engineering codebases. Extracts specifications from existing code, maps dependencies, and generates documentation for legacy and undocumented systems. Claude Code CX Codex Cursor 4,400installs security-review getsentry skill Finds injections, XSS, authorization flaws, and other vulnerabilities in code. Reports only high-confidence findings. Claude Code CX Codex Cursor 21,100installs sprites-and-images phaserjs skill Guides agents on creating Sprite and Image objects in Phaser 4. Explains factory methods, texture frames, mixin components, and visual transforms. Claude Code CX Codex Cursor 1,100installs mobile-app-ui-design ceorkm skill Provides mobile UX and UI guidelines for coding agents. Helps generate mobile screens, components, and design flows that follow structured layout rules. Claude Code CX Codex Cursor 11,500installs ads-test AgriciDaniel skill Walks a paid-media experiment from hypothesis to readout: randomization unit, sample size, stopping rule, and a plain-language decision. Claude Code CX Codex Cursor 3,600installs hud Yeachan-Heo skill The hud skill configures a HUD display in Claude Code's statusline, showing git branch, context usage, running subagents, and other metrics. Track session state and keep tabs on complex work without losing context. Claude Code CX Codex Cursor 1,100installs langgraph-human-in-the-loop langchain-ai skill Skill for building LangGraph workflows that pause and wait for human input. Use it to show agent output, request approval, or validate user responses before continuing. Claude Code CX Codex Cursor 17,200installs e2e tester-army skill Writes, runs, and debugs web and mobile end-to-end tests with the e2e test runner, combining agent goals with exact Playwright assertions and device checks. Claude Code CX Codex Cursor 1,200installs agentic-actions-auditor trailofbits skill Inspects GitHub Actions workflows for prompt injection risks and insecure AI agent setups. Catches attacker inputs leaking into prompts via event contexts or environment variables. Claude Code CX Codex Cursor 6,700installs post-mortem thananon skill Skill writes an engineering post-mortem after debugging: root cause with code identifiers, symptom, mechanism, the fix, and why it slipped through. Use after validation, before closing the ticket. Claude Code CX Codex Cursor 4,700installs zod-4 prowler-cloud skill Provides validation patterns for Zod 4 and guides migration from Zod 3. It helps write schemas for forms, API payloads, and adapters. Claude Code CX Codex Cursor 1,200installs legacy-modernizer https://github.com/Jeffallan skill Plans incremental legacy-code migration from dependency maps to facades, flags, and rollback steps. Use it when splitting a monolith or upgrading technology without a wholesale replacement. Claude Code CX Codex Cursor 4,300installs salesforce-developer https://github.com/Jeffallan skill Writes Apex classes, builds Lightning Web Components, optimizes SOQL queries, and sets up batch processing on Salesforce. Enforces governor limits and bulkifies code. Claude Code CX Codex Cursor 4,300installs mathmodel-figure-templates jihe520 skill Runs packaged Python and matplotlib scripts to generate publication-grade scientific figures. Useful when you need Taylor diagrams, ROC curves, or correlation grids quickly. Claude Code CX Codex Cursor 1,700installs gh-cli trailofbits skill A skill that redirects GitHub requests from curl and fetch to authenticated gh CLI for repositories, pull requests, and issues. Use it for private repos and higher API limits. Claude Code CX Codex Cursor 6,600installs html-diagram plannotator skill Generates standalone interactive HTML diagrams without external services or build steps. Helps visualize component topology, state transitions, timelines, and quantitative structures. Claude Code CX Codex Cursor 4,100installs visual-pr humanlayer skill A skill that automates pull request descriptions: reads the diff, gathers context, and fills a template so reviewers understand why the change exists and how it's shaped. Claude Code CX Codex Cursor 3,000installs zustand vercel-labs skill This skill integrates Zustand into json-render to sync application state. Use it when your project already relies on Zustand and you need to connect it with components rendered by json-render. Claude Code CX Codex Cursor 1,900installs office-productivity sickn33 skill A wrapper skill that walks the agent through seven phases of office work: documents, spreadsheets, slide decks, format conversion. Claude Code CX Codex Cursor 1,600installs firebase sickn33 skill Guides Firebase architecture, Firestore security rules, and Cloud Functions based on read-heavy query patterns and pricing limits. Claude Code CX Codex Cursor 1,600installs tailwind-design-system sickn33 skill A skill that keeps the agent on Tailwind while you build a design system: tokens, component variants, responsive patterns, accessibility. Useful when the UI drifts. Claude Code CX Codex Cursor 1,600installs