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Kotlin MCP Server Development Expert official github subagent Helps build Model Context Protocol servers in Kotlin using the official SDK, coroutines, and Ktor. Useful for wiring up tools, resources, and custom transports. GitHub Copilot ★ 40,369repo stars flight-map-canvas official John Haugabook plugin An interactive GitHub Copilot canvas that turns Google Maps into a 3D flight simulator. The agent flies to coordinates and reports active task progress. GitHub Copilot ★ 40,369repo stars vercel-storage official Vercel Labs skill Tells the agent which Vercel storage to pick and how to wire it up: Blob, Edge Config, Neon Postgres, Upstash Redis. CX Codex GP ChatGPT 6installs deep-learning-book Alireza Rezvani skill Study companion and reference for the Goodfellow Deep Learning textbook. Indexes 20 chapters, adds a 2016-to-2026 delta layer, and diagnoses neural network training issues. Claude Code 12installs work-hub official James Montemagno plugin A cross-repository command center for GitHub Copilot that supports onboarding, focus planning, repo health checks, work signals, and session cleanup. GitHub Copilot ★ 40,369repo stars power-apps-code-apps official Awesome Copilot Community plugin Scaffolds Power Apps Code Apps projects and provides an agent for Power Platform and Dataverse guidance. GitHub Copilot ★ 40,369repo stars rcsb-pdb-skill official OpenAI skill This skill sends RCSB PDB requests for metadata, search results, and FASTA. Use it when an agent needs compact structure-data summaries. CX Codex GP ChatGPT 14installs arcade-canvas official Dan Wahlin plugin This plugin adds six retro Phaser mini-games to a GitHub Copilot canvas. Use it for a short break while agents work on tasks. GitHub Copilot ★ 40,369repo stars Power Platform MCP Integration Expert official github subagent Guides Power Platform custom connector development with MCP for Copilot Studio. Helps flatten Swagger schemas, validate packages, and secure OAuth flows. GitHub Copilot ★ 40,369repo stars swift-mcp-development official Awesome Copilot Community plugin This plugin helps build Model Context Protocol servers in Swift with the official MCP Swift SDK. Use it when you need a project generator and Swift concurrency guidance. GitHub Copilot ★ 40,369repo stars stripe-best-practices official OpenAI skill This skill guides Stripe API choices for payments, subscriptions, marketplaces, and financial accounts. Use it when building or reviewing a Stripe integration. CX Codex GP ChatGPT 36installs Gilfoyle Code Review Mode official github subagent Conducts code reviews with the abrasive technical elitism of Silicon Valley's Bertram Gilfoyle. It delivers blunt critiques of architecture and security. GitHub Copilot ★ 40,369repo stars database-data-management official Awesome Copilot Community plugin Provides SQL query optimization, security code review, and database administration tools for PostgreSQL and SQL Server in GitHub Copilot. GitHub Copilot ★ 40,369repo stars release-notes-showcase official Kayla Cinnamon plugin Drafts and refines launch release notes, with contributor callouts and export-friendly output. Use it when preparing release notes in GitHub Copilot. GitHub Copilot ★ 40,369repo stars noob-mode official Awesome Copilot Community plugin Translates Copilot CLI approval prompts, errors, and terminal output into plain English with color-coded risk indicators. GitHub Copilot ★ 40,369repo stars md-slides Alireza Rezvani skill Converts markdown decks into a single-file HTML presentation with keyboard navigation, presenter mode, and PDF printing. Works via Claude Code. Claude Code 15installs turborepo official Vercel Labs skill A skill that teaches Claude how Turborepo v2.8 works: task caching, remote cache, parallel runs and the --affected flag for CI. CX Codex GP ChatGPT 7installs Frontend Performance Investigator official github subagent Diagnoses runtime web performance issues, layout shifts, and Core Web Vitals regressions by connecting browser traces directly to your code. GitHub Copilot ★ 40,369repo stars gem-code-simplifier official github subagent A refactoring subagent that removes dead code and drops complexity. Handy when cleaning up messy logic without altering existing behavior. GitHub Copilot ★ 40,369repo stars mgnify-skill official OpenAI skill Query MGnify studies, samples, and biome metadata, then get concise summaries. Use it when you need a focused view of microbiome data. CX Codex GP ChatGPT 14installs cast-imaging official Awesome Copilot Community plugin Adds three specialized agents to GitHub Copilot for architectural mapping, change impact assessment, and code quality analysis using CAST Imaging. GitHub Copilot ★ 40,369repo stars superpowers obra plugin The plugin guides an agent from task discussion and planning through subagent development, code review, debugging, and TDD. Use it when the workflow matters. Claude Code CX Codex ★ 304,495repo stars application-integration-authoring official google skill Manage Google Cloud Application Integration versions through the REST API or Python client. Use it to publish workflows and promote versions across environments. Claude Code Gemini CLI CX Codex 16installs roundup official Awesome Copilot Community plugin roundup gathers context from available work tools and drafts status briefings in your style. Use it when different audiences need different updates. GitHub Copilot ★ 40,369repo stars agents-sdk official OpenAI skill Builds, runs, and tests OpenAI Agents SDK apps from Codex. Turns a prompt, repo, or session into a working agent with tools and eval tests. CX Codex GP ChatGPT 22installs php-mcp-development official Awesome Copilot Community plugin This plugin helps build MCP servers in PHP with the official SDK. Use it to generate a project with tools, resources, prompts, and tests. GitHub Copilot ★ 40,369repo stars REA morluto MCP server Wires your agent to tools for inspecting binaries, Electron apps, .NET assemblies and websites. Useful when you want to understand someone else's feature and rebuild it. Claude Code CX Codex Cursor +1 ★ 376,805repo stars gesture-review official Aaron Powell plugin The plugin lets you review pull requests through a live camera feed, approving or rejecting changes with thumbs-up or thumbs-down gestures. GitHub Copilot ★ 40,369repo stars analyze-data-quality official Data Analytics Maintainers skill Evaluates whether datasets and metric tables are reliable enough for dashboards or models. Helps catch duplicates and anomalies. CX Codex GP ChatGPT 9installs game-studio official OpenAI skill Helps choose a stack and plan a browser game from its core loop through playtesting. Use it when the implementation path is still open. CX Codex GP ChatGPT 50installs Doublecheck official github subagent Verifies AI-generated text by finding web sources and highlighting hallucination risks. Useful before publishing content containing legal citations, statistics, or API syntax. GitHub Copilot ★ 40,369repo stars agent-radar official Annika Wickert plugin Displays a live map of Copilot agents on your computer, their sub-agents, executed commands, and data flows. Useful for tracking what local agents do. GitHub Copilot ★ 40,369repo stars Dynatrace Expert official github subagent Integrates Dynatrace observability and security directly into repository workflows. It investigates incidents, verifies deployments, and identifies vulnerabilities via traces and logs. GitHub Copilot ★ 40,369repo stars env-vars official Vercel Labs skill Learn how the skill handles Vercel environment variables, .env files, CLI commands, and local OIDC tokens. Useful when setting up a project or tracing auth errors. CX Codex GP ChatGPT 7installs napkin official Awesome Copilot Community plugin napkin opens a browser whiteboard for sketches and notes, then shares them with Copilot. Use it when a diagram is easier to explain than a block of text. GitHub Copilot ★ 40,369repo stars power-bi-development official Awesome Copilot Community plugin This plugin adds prompts and agents for DAX, data models, performance troubleshooting, and report design. Use it while building or reviewing Power BI work. GitHub Copilot ★ 40,369repo stars PHP MCP Expert official github subagent Assists in building Model Context Protocol servers in PHP 8.2+ using the official PHP SDK. Generates tools, resources, and prompts with PHP attributes. GitHub Copilot ★ 40,369repo stars Declarative Agents Architect official github subagent Designs Microsoft 365 Copilot declarative agents using the v1.5 schema. Generates TypeSpec definitions, validates character constraints, and configures tooling. GitHub Copilot ★ 40,369repo stars local-seo-manager Stan Varashilov (Steffonet) skill This skill audits Google Business Profile, drafts neighborhood service pages and checks business details across directories. Use it for a business that serves customers at their location. Claude Code 90installs vercel-services official Vercel Labs skill Configures monorepos and multi-service deployments in a single Vercel project. Useful when pairing Python or Go backends with a frontend. CX Codex GP ChatGPT 4installs