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

async-io-model tursodatabase skill Teaches the agent Turso's cooperative async I/O patterns: explicit state machines, IOResult, and avoiding re-entrancy bugs. Claude Code CX Codex Cursor 1,300installs debugging tursodatabase skill A skill for tracking down tursodb bugs: compare bytecode against SQLite, turn on trace logs, run ThreadSanitizer, replay a seed and measure stack use. Claude Code CX Codex Cursor 1,300installs index-knowledge tursodatabase skill Skill automatically creates hierarchical AGENTS.md documentation for a codebase. Analyzes project structure, scores directory complexity, and generates files with instructions for AI agents. Claude Code CX Codex Cursor 1,300installs ai-video-generation 101-skills skill Generate videos with Google Veo, Seedance, HappyHorse and 40+ models directly in your editor. Supports text-to-video, image animation, lipsync and audio generation. Claude Code CX Codex Cursor 862,400installs playwright-expert https://github.com/Jeffallan skill Sets up Playwright E2E testing infrastructure, writes Page Object Model classes, and troubleshoots flaky tests using trace inspection. Claude Code CX Codex Cursor 5,300installs cpp-pro https://github.com/Jeffallan skill Writes, optimizes, and debugs C++ with concepts, ranges, coroutines, SIMD, and template metaprogramming. Built for C++20/23 projects where performance and type safety matter. Claude Code CX Codex Cursor 5,300installs ai-image-generation 101-skills skill Generates and edits images through belt with selectable models. Use it for illustrations, mockups, and changes to existing images. Claude Code CX Codex Cursor 861,200installs twitter-automation 101-skills skill Automates Twitter and X interactions through the belt command-line interface. It posts content, manages direct messages, tracks profiles, and handles likes. Claude Code CX Codex Cursor 861,000installs browser-extension-builder sickn33 skill Guides the architecture and implementation of Manifest V3 browser extensions for Chrome and Firefox. Useful when structuring content scripts, popups, and service workers. Claude Code CX Codex Cursor 2,000installs scroll-experience sickn33 skill This skill guides an agent through scroll animations, parallax scenes, and interactive web narratives. Use it when scrolling should reveal part of a page’s story. Claude Code CX Codex Cursor 2,000installs agent-memory-systems sickn33 skill Skill for designing agent memory with per-user and per-tenant isolation. Build RAG, conversation history, and vector stores so that one client's data stays separate from another. Claude Code CX Codex Cursor 2,000installs vision-analysis MiniMax-AI skill Describes images, extracts text, and reviews UI mockups using the MiniMax vision MCP tool. Handy when an agent needs to understand a screenshot or design file. Claude Code CX Codex Cursor 2,700installs android-native-dev MiniMax-AI skill Guides AI agents through native Android development: project scaffolding, Gradle setup, Jetpack Compose dependencies, and product flavors. Claude Code CX Codex Cursor 2,700installs eas-update expo skill Skill for configuring and publishing updates via EAS Update. Delivers JavaScript and asset changes to installed apps without rebuilding native code. Claude Code CX Codex Cursor 10,600installs sigma sanyuan0704 skill Personal tutor with level diagnosis, Socratic dialogue, and mastery gating. No direct answers — guides through questions until 80% threshold. Claude Code CX Codex Cursor 4,800installs kotlin-specialist https://github.com/Jeffallan skill This skill guides Kotlin work with coroutines, Flow, KMP, Compose, and Ktor. Use it when an implementation needs structured concurrency, shared code, or Kotlin UI patterns. Claude Code CX Codex Cursor 5,200installs freeze garrytan skill The skill blocks Edit, Write and NotebookEdit outside one directory. The hook returns a deny, not a warning. Claude Code CX Codex Cursor 352installs database-lookup K-Dense-AI skill Queries 80 documented public database APIs with explicit filters, pagination, and provenance. It is useful when scientific or financial facts require reproducible citations. Claude Code CX Codex Cursor 2,100installs seaborn K-Dense-AI skill A skill that gets your coding agent building seaborn plots from pandas DataFrames: distributions, regressions, pairplots and heatmaps, written against the current API. Claude Code CX Codex Cursor 2,100installs hypothesis-generation K-Dense-AI skill Turns raw observations into testable hypotheses, rival explanations, and preregistration analysis plans without mistaking tentative claims for proven facts. Claude Code CX Codex Cursor 2,100installs markitdown K-Dense-AI skill A Claude Code skill that runs Microsoft MarkItDown over PDFs, Office files, HTML and CSV so the text ends up as Markdown ready for search or RAG. Claude Code CX Codex Cursor 2,100installs react-pdf vercel-labs skill Renders PDF documents from JSON specs using @react-pdf/renderer. Use it when you need to build invoices, reports, or forms programmatically from structured data. Claude Code CX Codex Cursor 2,300installs processize slavingia skill Turns a software product idea into a manual workflow you can run today. Helps validate value with paying users before writing any code. Claude Code CX Codex Cursor 2,500installs company-values slavingia skill Guides founders through defining company values and culture before hiring. It turns beliefs and work situations into practical team principles. Claude Code CX Codex Cursor 2,500installs simplify-code Hermes Agent (inspired by Claude Code /simplify) skill Reviews recent code changes through four parallel subagents and applies justified cleanup fixes. Use it after edits to simplify code that already works. Claude Code CX Codex Cursor 345installs draft-nda phuryn skill This skill drafts a detailed non-disclosure agreement between two parties, covering information types, jurisdiction, and marking sections that require legal review. Claude Code CX Codex Cursor 2,600installs plan-devex-review garrytan skill An interactive read of a plan from the developer's side: it flags where someone opening the project for the first time will stumble, and asks before editing. Claude Code CX Codex Cursor 347installs brand-extract nexu-io skill Extracts a complete brand kit from a live website via the in-app browser. Gathers semantic colors, fonts, logos, and generates brand.json. Claude Code CX Codex Cursor 1,100installs golang-pkg-go-dev samber skill Queries Go package docs, API signatures, examples, and CVEs via godig and pkg.go.dev. Inspects external dependencies directly in agent chat. Claude Code CX Codex Cursor 11,700installs debugging-wizard https://github.com/Jeffallan skill Investigates errors, stack traces, and logs to locate failure points. Use it for crashes, exceptions, regressions, or code that behaves unexpectedly. Claude Code CX Codex Cursor 5,100installs secure-code-guardian https://github.com/Jeffallan skill A skill for implementing custom authentication, input validation, and OWASP Top 10 defences. Use it when building your own authorization system instead of pre-built OAuth. Claude Code CX Codex Cursor 5,100installs state-machine jakubkrehel skill Builds a throwaway page for every reachable state of one component, using mock data and a switcher. Use it when visual work needs isolated states without changing the component. Claude Code CX Codex Cursor 3,500installs quality-playbook official Andrew Stellman skill This skill explores a codebase, derives requirements, reviews implementation, and audits it against specifications. Use it when you need findings tied to tests and verified TDD patches. 1,600installs gtm-partnership-architecture official Smit Patel (https://linkedin.com/in/smitkpatel) skill This skill helps design partner programs, assess build-versus-partner choices, and plan go-to-market work through partner ecosystems. 1,600installs gtm-enterprise-onboarding official Smit Patel (https://linkedin.com/in/smitkpatel) skill A four-phase skill for moving enterprise customers from contract to sustained adoption. Use it to prepare onboarding and address churn risks after go-live. 1,600installs gtm-enterprise-account-planning official Smit Patel (https://linkedin.com/in/smitkpatel) skill This skill helps plan complex enterprise deals, apply MEDDICC, involve the Economic Buyer, and track deal health through a mutual action plan. 1,600installs gtm-board-and-investor-communication official Smit Patel (https://linkedin.com/in/smitkpatel) skill Helps shape board meeting materials, investor updates, and executive communication. Use it to explain progress, risks, and the decisions that need attention. 1,600installs gtm-ai-gtm official Smit Patel (https://linkedin.com/in/smitkpatel) skill This skill helps take AI products to market by choosing positioning, handling failure-ownership objections, and shaping pricing for variable usage. 1,600installs dotnet-timezone official github skill This skill gives C# and .NET guidance for time zones, UTC conversion, DST, and Windows or IANA IDs. Use it for APIs, schedulers, and location lookups. 1,600installs aws-cdk-python-setup official github skill This skill prepares an AWS CDK project in Python, covering prerequisites, project creation, dependencies, and deployment to AWS. 1,600installs