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

dotnet-best-practices official github skill Guides reviews and edits of selected .NET/C# code with project rules for structure, DI, tests, logging and security. Use it when changing an existing solution. 15,752installs next-partial-prefetching-optimizer vercel skill Tunes Next.js 16.3+ client link prefetching under Partial Prefetching. Balances instant navigation against deferred data reads before the user clicks. Claude Code CX Codex Cursor 2,300installs sql-optimization official github skill Reviews SQL performance issues, index choices, and slow-query patterns. Use it when tuning queries for MySQL, PostgreSQL, SQL Server, or Oracle. 15,701installs open-code-review-delegate alibaba skill Instructs the host agent to drive code reviews while using the OCR CLI only for file selection and rule resolution. Useful when running reviews with your own model. Claude Code CX Codex Cursor 3,600installs learn-codebase thedotmack skill Instructs the agent to read every source file in full before starting work. Built for onboarding on unfamiliar repositories. Claude Code CX Codex Cursor 5,300installs ai-research-explore lllllllama skill Governs deep learning research exploration on top of an existing baseline. It isolates candidate experiments and generates structured comparison reports. Claude Code CX Codex Cursor 335,600installs analyze-project lllllllama skill Reads a deep learning repository and maps its structure, entrypoints and suspicious spots. Changes nothing, runs no heavy jobs. Claude Code CX Codex Cursor 335,500installs ai-research-reproduction lllllllama skill This skill guides a repository-grounded reproduction run from its README to an evidence bundle. Use it to test a documented model run without quietly changing the experiment. Claude Code CX Codex Cursor 335,300installs explore-code lllllllama skill A skill for cautious code experiments in deep learning repositories: it transplants modules and adapts architectures on an isolated branch, with rollback-aware records. Claude Code CX Codex Cursor 335,000installs explore-run lllllllama skill Plans bounded exploratory machine learning runs with comparability caveats and saves summaries to explore_outputs. Claude Code CX Codex Cursor 334,700installs run-train lllllllama skill Runs a selected training command and organizes the resulting evidence. Use it for startup checks, short-run verification, full training kickoff, or resume handling. Claude Code CX Codex Cursor 334,700installs better-typography jakubkrehel skill Reviews interface typography and applies fixes through the project’s styling system. Use it to check text hierarchy, wrapping, truncation and punctuation. Claude Code CX Codex Cursor 33,800installs nodejs-keccak256 affaan-m skill Catches NIST SHA3 used where Ethereum expects Keccak-256. Useful when a selector, signature or storage slot comes out wrong. Claude Code CX Codex Cursor 4,800installs kotlin-patterns affaan-m skill Guides AI agents through idiomatic Kotlin conventions, null safety, and coroutine patterns. Useful for code reviews and refactoring Java-like Kotlin. Claude Code CX Codex Cursor 4,800installs kotlin-coroutines-flows affaan-m skill This skill covers Kotlin Coroutines and Flow patterns for Android and KMP. Use it when handling cancellation, concurrent work, reactive state, or tests. Claude Code CX Codex Cursor 4,800installs architecture-decision-records affaan-m skill This skill writes architectural decisions into numbered ADR files in docs/adr/, with context, rejected alternatives and consequences. Useful when you pick a framework or database and want the reasoning to survive. Claude Code CX Codex Cursor 4,800installs react-performance affaan-m skill A performance optimization skill for React 18/19 and Next.js. It helps coding agents spot network waterfalls, trim client bundle sizes, and tune Server Components during code review. Claude Code CX Codex Cursor 4,800installs remotion-video-creation affaan-m skill This skill gives coding agents Remotion guidance for React video work, from animation and audio to captions, charts, and transitions. Use it while building or editing a Remotion project. Claude Code CX Codex Cursor 4,800installs react-patterns affaan-m skill A skill for Claude and other AI editors that steers the agent toward idiomatic React 18/19: hooks discipline, server/client boundaries, forms, data fetching. Claude Code CX Codex Cursor 4,800installs laravel-tdd affaan-m skill Guides test-driven development in Laravel using PHPUnit or Pest. Provides templates for model factories, Eloquent checks, and HTTP feature tests. Claude Code CX Codex Cursor 4,800installs stitch::manage-design-system official google-labs-code skill Manages Stitch design systems through MCP tools: retrieves screen data, creates project-level tokens, and applies them to selected screens. Claude Code CX Codex Cursor 10,200installs stitch::code-to-design official google-labs-code skill Moves an existing frontend into Stitch by extracting standalone HTML and a design system, then uploading both to a project. Useful when bringing pages or components into Stitch for further work. Claude Code CX Codex Cursor 10,100installs baseline-ui ibelick skill Cleans up AI-generated UI code by fixing layout issues, typography, spacing, and animations. Useful for a fast frontend polish pass before merging. Claude Code CX Codex Cursor 24,100installs cloudflare-one-migrations cloudflare skill Plans a migration from VPN, SWG or SASE to Cloudflare One: maps policies to Cloudflare resources, flags parity gaps and stages the rollout. Claude Code CX Codex Cursor 88,700installs chrome-devtools official github skill Controls a live Chrome browser through Chrome DevTools MCP for page actions, debugging, and performance traces. Use it when an agent needs to inspect a web interface. 15,258installs content-engine affaan-m skill This skill turns articles, notes, and demos into content for X, LinkedIn, TikTok, YouTube, and newsletters. Use it for posts, scripts, or content calendars. Claude Code CX Codex Cursor 4,700installs cpp-testing affaan-m skill This skill walks the agent through the red-green-refactor loop for C++17/20 tests and sets up GoogleTest with CMake/CTest. Useful when tests fail or flake. Claude Code CX Codex Cursor 4,700installs django-tdd affaan-m skill Sets up TDD workflows for Django and DRF using pytest-django and factory_boy. Useful when building test suites for models, serializers, and APIs. Claude Code CX Codex Cursor 4,700installs eval-harness affaan-m skill A skill for eval-driven development: it sets pass/fail criteria before you write code and tracks agent reliability with pass@k and pass^k. Claude Code CX Codex Cursor 4,700installs security-scan affaan-m skill Scans the .claude/ directory for leaked secrets, loose permissions and hook injection risks. Useful right after you edit settings.json or add an MCP server. Claude Code CX Codex Cursor 4,700installs redis-patterns affaan-m skill Production Redis patterns covering caching strategies, distributed locks, sliding window rate limits, and Streams. Claude Code CX Codex Cursor 4,700installs ui-demo affaan-m skill Records demo videos of a web app with Playwright: visible cursor, steady pacing, a story-shaped flow. Handy for onboarding clips and stakeholder walkthroughs. Claude Code CX Codex Cursor 4,700installs bun-runtime affaan-m skill A skill that tells your agent when to pick Bun over Node, plus the commands for install, tests and Vercel deploys. Claude Code CX Codex Cursor 4,700installs dashboard-builder affaan-m skill Builds operational monitoring dashboards for Grafana and SigNoz based on incident response questions instead of vanity metric lists. Claude Code CX Codex Cursor 4,700installs agent-architecture-audit affaan-m skill This skill checks agent and LLM applications across 12 layers. Use it when an agent degrades and the failing layer is hard to locate. Claude Code CX Codex Cursor 4,700installs react-testing affaan-m skill A skill for writing React component, hook and page tests with React Testing Library, Vitest or Jest, MSW network mocks and axe accessibility assertions. Claude Code CX Codex Cursor 4,700installs agentic-engineering affaan-m skill Establishes protocols for agent-led workflows: breaks work into 15-minute verifiable units, enforces eval-first testing, and routes tasks between Haiku, Sonnet, and Opus. Claude Code CX Codex Cursor 4,700installs vite-patterns affaan-m skill This skill guides Vite configuration, plugins, HMR, environment variables, and builds. Use it when working with vite.config.ts or a Vite project. Claude Code CX Codex Cursor 4,700installs error-handling affaan-m skill A skill that sets one way to handle errors in TypeScript, Python and Go: typed errors, retries, circuit breakers, user-facing messages. Claude Code CX Codex Cursor 4,700installs perl-security affaan-m skill Enforces Perl security practices: taint mode handling, allowlist input validation, three-argument open, safe execution, and DBI placeholders. Claude Code CX Codex Cursor 4,700installs