Codex skills, plugins, subagents, slash commands and mcp servers

aws-billing-and-cost-management aws skill Analyzes AWS spending, discovers savings opportunities, and sets up budgets. Helps evaluate Savings Plans, detect cost anomalies, and right-size infrastructure. Claude Code Cursor GitHub Copilot 8,900installs migrate-to-rust official google skill Migrates legacy C++, Fortran, Java, and Python codebases to safe Rust with telemetry benchmarks. Claude Code Gemini CLI 538installs orval orval-labs skill Generates type-safe TypeScript clients, TanStack Query hooks, Zod schemas, and MSW mocks from OpenAPI specs. Claude Code Cursor GitHub Copilot 589installs firecrawl-workflows firecrawl skill A router skill for Claude Code and other coding agents: it picks a ready Firecrawl workflow for the job and returns a sourced deliverable. Claude Code Cursor GitHub Copilot 32,600installs firecrawl-knowledge-base firecrawl skill This skill crawls web pages with Firecrawl and structures them into local Markdown files. It helps prepare clean RAG chunks or fine-tuning datasets. Claude Code Cursor GitHub Copilot 32,500installs cli-anything-mermaid HKUDS skill Command-line tool to create and export Mermaid diagrams to SVG or PNG without a GUI. Useful for AI agents generating architecture flowcharts directly from terminal sessions. Claude Code Cursor GitHub Copilot 513installs aws-cloudformation aws skill Takes CloudFormation templates from authoring to failed-stack post-mortem: local validation, cfn-guard checks, account-aware pre-deploy checks and root-cause tracing. Claude Code Cursor GitHub Copilot 8,800installs threejs-materials-lighting gamedev-skills skill Picks the right three.js material, adds lights and shadow maps, and wires an HDR environment so a model stops rendering black or flat. Claude Code Cursor GitHub Copilot 5,300installs unity-build-pipeline gamedev-skills skill Configures and scripts Unity 6.3 LTS builds via BuildPipeline, build profiles, and CI headless runs. Helps tune stripping and pick Mono or IL2CPP. Claude Code Cursor GitHub Copilot 5,300installs app-store-preflight-skills truongduy2611 skill Walks an Xcode project through the rejection patterns Apple flags most often, then returns a report sorted by severity. Claude Code Cursor GitHub Copilot 2,100installs ecosystem-primer langchain-ai skill Guides framework selection across LangChain, LangGraph, and Deep Agents before writing code. Maps requirements to the right layer, env vars, and quickstarts. Claude Code Cursor GitHub Copilot 8,000installs varlock dmno-dev skill Instructs coding agents to manage secrets via Varlock, redact sensitive values in LLM context, and define configurations inside .env.schema. Claude Code Cursor GitHub Copilot 747installs jobs-to-be-done deanpeters skill The skill breaks customer needs into functional, social and emotional jobs, plus pains and gains. Useful when feature requests keep arriving with no reason behind them. Claude Code Cursor GitHub Copilot 3,100installs kimi-delegate amElnagdy skill Hands implementation to the Kimi Code CLI as a background worker, then leaves review and commit to your agent. Useful when you want to stay the reviewer. Claude Code Cursor GitHub Copilot 4,400installs browser-mcp-agent antibrow skill Gives an agent a real browser through MCP calls: navigate, click, fill forms, screenshot, run JS. A named profile keeps the session logged in between runs. Claude Code Cursor GitHub Copilot 105,700installs unity-navmesh gamedev-skills skill Coding-agent skill for Unity pathfinding: bake a NavMesh over level geometry and drive NPCs with NavMeshAgent. Useful when an enemy should chase the player instead of idling. Claude Code Cursor GitHub Copilot 5,200installs unity-tilemap-2d gamedev-skills skill Builds and scripts 2D tilemaps in Unity 6.3 LTS using Grid components, Tile Palette, and runtime C# methods. Useful when laying out levels, setting up colliders, or generating procedural rooms. Claude Code Cursor GitHub Copilot 5,200installs cli-anything-shotcut HKUDS skill A skill that hands an agent a shell for Shotcut: timelines, filters and renders through MLT XML, with no GUI in the loop. Claude Code Cursor GitHub Copilot 500installs ccf-common mikubaka88 skill Shared preflight module for the CCFA skill suite. It configures routing, working directories, and evidence standards before specialist skills run. Claude Code Cursor GitHub Copilot 2,000installs build-iterated-agentic-loop humanlayer skill Turns a repeatable agent task into a repo-local skill plus a GitHub Actions workflow that runs a coding agent on a schedule, by hand, or both. Claude Code Cursor GitHub Copilot 1,400installs clean-architecture wondelai skill A skill that keeps business rules independent of framework and database by enforcing one rule: source code dependencies point inward. Claude Code Cursor GitHub Copilot 7,200installs svelte-core-bestpractices sveltejs skill A skill that tells the agent how to write Svelte components with runes: $state, $derived, events, styling. Useful as soon as the agent edits a Svelte project. Claude Code Cursor GitHub Copilot 10,700installs stripe-directory stripe skill A skill that points the agent at Stripe Directory instead of web search, so it finds a provider and the documented way to pay, subscribe or provision with it. Claude Code Cursor GitHub Copilot 4,200installs firecrawl-lead-research firecrawl skill Pulls job title, company and firmographics for the people and domains you already named, then fills the gaps in a list. Useful before a call or when an old lead list needs a check. Claude Code Cursor GitHub Copilot 31,400installs crypto-market-rank binance-web3-team skill A skill that hands the agent ready-made crypto leaderboards: trending tokens, social hype, smart-money inflow, Pulse meme tokens and top traders by PnL. Claude Code Cursor GitHub Copilot 9,000installs cli-anything-videocaptioner HKUDS skill Transcribes speech, translates subtitles into 38 languages, and burns captions into video using the VideoCaptioner backend. Useful when preparing video assets directly from the terminal. Claude Code Cursor GitHub Copilot 495installs seedance-20 Emily2040 skill A skill that steers the agent through Seedance 2.0 video work: brief, surface checks, then a compact prompt for the mode you asked for. Claude Code Cursor GitHub Copilot 481installs firecrawl-competitive-intel firecrawl skill Monitors competitor pricing, feature releases, and changelogs using Firecrawl. Useful for ongoing market tracking and generating structured intelligence reports. Claude Code Cursor GitHub Copilot 31,300installs wp-phpstan WordPress skill Sets up PHPStan static analysis in WordPress plugins and themes, while managing baselines and WordPress-specific PHPDoc types. Claude Code Cursor GitHub Copilot 4,600installs top-design wondelai skill Directs AI coding agents to build Awwwards-style web experiences with dramatic typography, orchestrated scroll motion, and a 10-point scoring rubric. Claude Code Cursor GitHub Copilot 7,100installs cli-anything-iterm2 HKUDS skill Controls live iTerm2 sessions over the Python WebSocket API. Lets coding agents inspect running panes, send keystrokes, and split terminal layouts. Claude Code Cursor GitHub Copilot 489installs serve-sim EvanBacon skill A skill that teaches an agent to control a booted iOS, iPad or Apple Watch Simulator through npx serve-sim: taps, gestures, buttons, rotation, camera. Claude Code Cursor GitHub Copilot 1,100installs cli-anything-dify-workflow HKUDS skill A skill that hands the agent commands for building, checking and editing Dify workflow YAML. Useful when a hand-written workflow breaks on import. Claude Code Cursor GitHub Copilot 487installs develop jsmastery-pro skill Turns approved specs and AGENTS.md rules into working UI and backend code. Helpful when architectural choices are settled and code generation needs strict guardrails. Claude Code Cursor GitHub Copilot 4,400installs threejs-game-director majidmanzarpour skill A director skill for Three.js browser games: it runs the work from a playable loop to graphics, UI and browser checks by handing phases to sibling skills. Claude Code Cursor GitHub Copilot 3,000installs cloud-monitoring-notification-channels-configuration official google skill Generates Terraform configurations for Cloud Monitoring notification channels and adds them to alerting policies. Use it for email, SMS, Slack, PagerDuty, Pub/Sub, or webhook setup. Claude Code Gemini CLI 502installs unreal-cpp-gameplay gamedev-skills skill Teaches the agent to write UE5 gameplay C++: reflection macros, Gameplay Framework class roles, and module dependencies in *.Build.cs. Claude Code Cursor GitHub Copilot 5,000installs okx-dapp-discovery okx skill A routing skill: it spots a supported DApp such as Aave, Hyperliquid or Pendle in your request and hands the work to the matching OKX plugin. It never signs or broadcasts anything itself. Claude Code Cursor GitHub Copilot 14,400installs llm-wiki Ar9av skill The schema side of a personal Obsidian wiki: source layers, categories, project trees and a page template. Use it when you're deciding how knowledge should be stored. Claude Code Cursor GitHub Copilot 4,100installs api-gateway-mcp-server official google skill Configures Google Cloud API Gateway as a remote MCP server over HTTP. It exposes REST APIs as tools for AI agents using annotated OpenAPI 3.x specs. Claude Code Gemini CLI 499installs