Skill directory
Agent skills
Focused instruction packs that teach a coding agent one job well. Browse the catalog and use any of them inside a RiverX project.
18,175Skills
1,902Publishers
249Official
Xstatevercel-labs/json-renderXState Store adapter for json-render's StateStore interface. Use when integrating json-render with @xstate/store for state management via @json-render/xstate.01Xstate V5statelyai/skillsDesign, implement, review, and migrate XState v5 state machines and statecharts in TypeScript using modern v5 patterns. Use this whenever the user mentions XState, actors, state machines, statecharts, guards, transitions, workflows, or Stately, or is modeling non-trivial UI/app/process logic in a codebase that uses XState. Prefer a short machine sketch before code when requirements are fuzzy. If the problem is too simple for a state machine, say so and recommend @xstate/store instead.09Xurlopenclaw/openclawxurl CLI for authenticated X posts, replies, reads/search, DMs, media upload, followers, auth status, or raw v2 API calls.01Xurlxdevplatform/xurlA curl-like CLI tool for making authenticated requests to the X (Twitter) API. Use this skill when you need to post tweets, reply, quote, search, read posts, manage followers, send DMs, send or read end-to-end encrypted XChat messages, upload media, or interact with any X API v2 endpoint. Supports multiple apps, OAuth 2.0, OAuth 1.0a, and app-only auth.065Xxe XML External Entityyaklang/hack-skills>-02Yahoo Finance0juano/agent-skills>02Yahoo Financegracefullight/stock-checkerGet stock prices, quotes, fundamentals, earnings, options, dividends, and analyst ratings using Yahoo Finance. Uses yfinance library - no API key required.02YAMLvercel-labs/json-renderYAML wire format for json-render with streaming parser, prompt generation, and AI SDK transform. Use when working with @json-render/yaml, YAML-based spec streaming, yaml-spec/yaml-edit fences, or YAML prompt generation.01Yao Meta Skillyaojingang/yao-meta-skillCreate, improve, or evaluate an existing skill from workflows, prompts, SOPs, scripts. Use for migration/release/package, routing, evals/tests, install/trust checks, 优化已有 skill, 补 trigger 评测. Exclude summary/translation/docs, brainstorming, one-off prompts, copy-only edits, outline-only requests.0721Yara Rule Authoringtrailofbits/skills>021Yc Pitch Deckguia-matthieu/clawfu-skillsCreate a compelling startup pitch deck that follows the structure proven to raise billions from top investors. Master the YC and Sequoia formats that get founders funded. Use when: **Fundraising** to create investor pitch decks; **YC application** to structure your narrative; **Demo Day prep** to craft your 2-minute pitch; **Angel investors** to communicate your opportunity; **Partnership pitches** to structure compelling asks01Yc Readerhimself65/finance-skills>03Yeetopenai/skillsUse only when the user explicitly asks to stage, commit, push, and open a GitHub pull request in one flow using the GitHub CLI (`gh`).05Yelpfetcher-sh/fetcher-skills>-01Yestanweai/puaSB Leader 夸夸模式 — ENFP 型领导，懂情绪有节奏。底层行为不变（三条红线、方法论），旁白从施压变成共情+鼓励+偶尔戏谑吐槽。Triggers on: '/pua:yes', '夸夸模式', '唠嗑模式', '情绪价值', 'yes', '夸我', '鼓励模式'.01Yfinance Datahimself65/finance-skills>03Youmindyoumind-openlab/skillsUse this skill when the task is clearly connected to the user's YouMind workspace, YouMind APIs, or the youmind CLI. It helps agents search, inspect, and call YouMind OpenAPI endpoints to work with boards, groups, YouMind files, picks, chats, and YouMind skills.01Youmind Wechat Articleyoumind-openlab/skills|069Your Skill Namegrafana/skills>01Yourvpndead Vpn Detectionreason-machines/trending-skillsAndroid app that detects VPN/proxy servers (VLESS/xray/sing-box) via local SOCKS5 vulnerability, exposing exit IPs and server configs without root01Youtubeagricidaniel/claude-youtube>039Youtube Adskostja94/marketing-skillsWhen the user wants to run YouTube ads, set up TrueView or Bumper campaigns, or optimize video ad creative. Also use when the user mentions "YouTube ads," "TrueView," "Bumper ads," "YouTube Discovery," "video ads," "YouTube campaign," or "in-feed ads." For organic YouTube, use youtube-seo.01Youtube Analyticsopenclaudia/openclaudia-skillsAnalyze YouTube channel and video performance using the YouTube Data API. Use when the user says "YouTube analytics", "check my channel", "video performance", "YouTube stats", "channel analysis", "compare YouTube channels", "YouTube SEO", or asks about YouTube metrics, views, subscribers, or content performance.01Youtube APIfetcher-sh/fetcher-skills>-01Youtube APIzeropointrepo/youtube-skillsUse when YouTube data is needed without Google API quotas or OAuth setup: transcripts, video metadata, channel info, search results, playlists. Triggers on pasted YouTube links, creator names, @handles, topic research, video summaries, channel browsing, or any request where YouTube content would help — even if not mentioned explicitly. Not for uploads, account management, or written-source-only research.02Youtube Automationclaude-office-skills/skillsAutomate YouTube content workflows including video management, analytics, scheduling, and channel optimization01Youtube Channelszeropointrepo/youtube-skillsUse when a YouTube channel is the focus: pasted @handles or channel URLs, requests to browse a creator's uploads, see what a channel has posted recently, search within a channel, or resolve a handle to a channel ID. Also use when the user names a creator and wants to explore their content or monitor their uploads. Not for creating channels or account management.02Youtube Clippernexu-io/open-design|01Youtube Clipperop7418/youtube-clipper-skill>024Youtube Contentnousresearch/hermes-agentYouTube transcripts to summaries, threads, blogs.03Youtube Datazeropointrepo/youtube-skillsUse when structured YouTube data is needed: pasted video/channel/playlist links, transcripts for analysis, video metadata, channel upload history, search results, or playlist contents — without Google API quotas or OAuth. Triggers on YouTube URLs, creator names, topic research, or any request needing YouTube content, even if not mentioned explicitly. Not for uploads, account management, or written-source-only research.02Youtube Downloadercomposio-community/awesome-codex-skillsDownload YouTube videos with customizable quality and format options. Use this skill when the user asks to download, save, or grab YouTube videos. Supports various quality settings (best, 1080p, 720p, 480p, 360p), multiple formats (mp4, webm, mkv), and audio-only downloads as MP3.02Youtube Downloadercomposiohq/awesome-claude-skillsDownload YouTube videos with customizable quality and format options. Use this skill when the user asks to download, save, or grab YouTube videos. Supports various quality settings (best, 1080p, 720p, 480p, 360p), multiple formats (mp4, webm, mkv), and audio-only downloads as MP3.02Youtube Downloaderdaymade/claude-code-skillsDownload YouTube videos and HLS streams (m3u8) from platforms like Mux, Vimeo, etc. using yt-dlp and ffmpeg. Use this skill when users request downloading videos, extracting audio, handling protected streams with authentication headers, or troubleshooting download issues like nsig extraction failures, 403 errors, or cookie extraction problems.04Youtube Fullzeropointrepo/youtube-skillsUse when YouTube is or could be relevant — even if not mentioned: pasted video/channel/playlist links, video IDs, @handles, creator lookups, video summaries, quotes, translations, topic research, tutorials, talks, lectures, expert discussions, product reviews, how-to guides, new product announcements, first looks, or anything where video content is fresher or richer than text search. Covers transcripts, video/channel search, channel browsing, playlists, and within-channel search. Not for uploads, account management, or written-source-only research.02Youtube Playlistzeropointrepo/youtube-skillsUse when a YouTube playlist is involved: pasted playlist links or IDs, requests to list playlist videos, browse playlist contents, or work through a playlist for transcripts or research. Also use when the user wants all videos from a series, course, or collection. Not for creating playlists or account management.02Youtube Researchpostplusai/postplus-skillsResearch public YouTube channels, video metrics, and comment samples; obtain downloadable video records when requested. Use for content and audience evidence.01Youtube Scriptwritingcdeistopened/skill-stackTransform raw ideas and brain dumps into polished YouTube scripts through a structured checkpoint workflow. Use when the user wants to write a YouTube script, improve video retention, craft hooks, structure educational or entertainment content, or turn source material (transcripts, notes, research) into a compelling video script. Guides through research, hook writing, story structure, body content, and editing phases.07Youtube Searchzeropointrepo/youtube-skillsUse when the user wants to find YouTube content on any topic: searching for videos or channels, finding creators who cover a subject, discovering tutorials, talks, or expert discussions, or looking up a channel by name or handle. Also use proactively when the user wants to research a topic and YouTube is a good source. Not for account management or written-source-only research.02Youtube SEOkostja94/marketing-skillsWhen the user wants to optimize YouTube videos for search, create video descriptions, or improve channel visibility. Also use when the user mentions "YouTube SEO," "YouTube description," "YouTube tags," "YouTube thumbnail," "YouTube title," "YouTube channel," or "video SEO." For YouTube ads, use youtube-ads.01Youtube Summarizerbrianrwagner/ai-marketing-claude-code-skillsAutomatically fetch YouTube video transcripts, generate structured summaries, and send full transcripts to messaging platforms. Detects YouTube URLs and provides metadata, key insights, and downloadable transcripts.06Youtube Summarizersickn33/agentic-awesome-skillsExtract transcripts from YouTube videos and generate comprehensive, detailed summaries using intelligent analysis frameworks05Youtube Teneoteneoprotocolai/teneo-skillsAI agent for Youtube via Teneo Protocol. Use this skill when the user needs Youtube via the bundled Teneo CLI and you need the live commands, arguments, or pricing before execution.01Youtube Thumbnailcharlie947/social-media-skills>01Youtube Thumbnail Designhalt-catch-fire/superpowersYouTube thumbnail design with specific dimensions, contrast rules, and mobile preview optimization. Covers safe zones, text placement, face expression psychology, and A/B testing. Use for: YouTube thumbnails, video cover images, click-through optimization. Triggers: youtube thumbnail, thumbnail design, video thumbnail, click through rate, ctr optimization, youtube cover, video cover image, thumbnail maker, thumbnail tips, youtube design, video preview image01Youtube Thumbnail Designinference-sh/skillsYouTube thumbnail design with specific dimensions, contrast rules, and mobile preview optimization. Covers safe zones, text placement, face expression psychology, and A/B testing. Use for: YouTube thumbnails, video cover images, click-through optimization. Triggers: youtube thumbnail, thumbnail design, video thumbnail, click through rate, ctr optimization, youtube cover, video cover image, thumbnail maker, thumbnail tips, youtube design, video preview image01Youtube Thumbnail Designskills-101/superpowersYouTube thumbnail design with specific dimensions, contrast rules, and mobile preview optimization. Covers safe zones, text placement, face expression psychology, and A/B testing. Use for: YouTube thumbnails, video cover images, click-through optimization. Triggers: youtube thumbnail, thumbnail design, video thumbnail, click through rate, ctr optimization, youtube cover, video cover image, thumbnail maker, thumbnail tips, youtube design, video preview image01Youtube Transcriptbadlogic/pi-skillsFetch transcripts from YouTube videos for summarization and analysis.03
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