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
Upgrade Mediabunnyremotion-dev/remotionUpgrade Mediabunny and related @mediabunny packages across the Remotion repo. Use when asked to update Mediabunny to the latest version.01Upgrade React Nativereact-native-community/skills>02Upgrade React Navigationreact-navigation/skillsUpgrade React Navigation to a new major version (6.x to 7.x or 7.x to 8.x), applying the required breaking changes — peer-dependency and tooling bumps, and renamed or removed navigate, linking, theme, navigator, and screen-option APIs — while preserving navigation behavior.04Upgrade Solidity Contractsopenzeppelin/openzeppelin-skillsUpgrade Solidity smart contracts using OpenZeppelin proxy patterns. Use when users need to: (1) make contracts upgradeable with UUPS, Transparent, or Beacon proxies, (2) write initializers instead of constructors, (3) use the Hardhat or Foundry upgrades plugins, (4) understand storage layout rules and ERC-7201 namespaced storage, (5) validate upgrade safety, (6) manage proxy deployments and upgrades, or (7) understand upgrade restrictions between OpenZeppelin Contracts major versions.01Upgrading React Nativecallstackincubator/agent-skillsUpgrades React Native apps to newer versions by applying rn-diff-purge template diffs, updating package.json dependencies, migrating native iOS and Android configuration, resolving CocoaPods and Gradle changes, and handling breaking API updates. Use when upgrading React Native, bumping RN version, updating from RN 0.x to 0.y, or migrating Expo SDK alongside a React Native upgrade.09Upload Filesimagekit-developer/skillsUpload files to the ImageKit media library via DAM MCP. Use upload_file (interactive picker) for local files; create_upload_signature for a public URL or CLI upload. Never inline file bytes into the conversation.01Upload Insecure Filesyaklang/hack-skills>-02Upload Postupload-post/upload-post-skillUpload content to social media platforms via Upload-Post API. Use when posting videos, photos, text, or documents to TikTok, Instagram, YouTube, LinkedIn, Facebook, X (Twitter), Threads, Pinterest, Reddit, or Bluesky. Supports scheduling, analytics, FFmpeg processing, and upload history.05Upload R2remotion-dev/remotionUpload large Remotion repository assets to the Cloudflare R2 bucket behind remotion.media and replace local public/ assets with hosted URLs. Use when a file is too large for Git or when a PR should avoid committing media binaries by hosting them on remotion.media.01Upscale Imagepilioai/skillsUpscale or enhance an image with the Pilio developer API. Use when the user wants higher-resolution images, AI super-resolution, image clarity improvement, or automated image enhancement through Pilio.01Upstashupstash/skillsWork with any Upstash product, SDK, or tool, including serverless Redis (caching, sessions, leaderboards, key-value storage), Ratelimit (rate limiting and throttling), QStash (message queue, cron schedules, background jobs), Workflow (durable long-running functions), Vector (vector database for embeddings, semantic search, and RAG), Search (full-text and semantic search), Box (sandboxed cloud containers for AI agents, TypeScript/JavaScript and Python), Blob (serverless S3-compatible file storage with direct browser uploads), the Upstash CLI, and no-signup scratch Redis for agents. Use when the user mentions Upstash or needs any of these capabilities in a serverless, edge, or Node.js app.089Upstash Box JSupstash/skillsWork with the @upstash/box TypeScript/JavaScript SDK for sandboxed cloud containers with AI agents, shell, filesystem, git, cron schedules, snapshots, and a headless browser. Use when building with Upstash Box, creating a sandbox or isolated environment to run untrusted or agent-generated code, running AI coding agents in containers, giving an agent a cloud dev environment with a shell and repository, browser automation from a box, scheduling recurring jobs inside a box, saving and restoring snapshots, or orchestrating parallel boxes.01Upstash Box Pyupstash/skillsWork with the upstash-box Python SDK for sandboxed cloud containers with AI agents, shell, filesystem, git, cron schedules, snapshots, and a headless browser. Use when building with Upstash Box in Python, creating a sandbox or isolated environment to run untrusted or agent-generated code, running AI coding agents in containers, giving an agent a cloud dev environment with a shell and repository, browser automation from a box, scheduling recurring jobs inside a box, saving and restoring snapshots, or orchestrating parallel boxes.01Upstash CLIupstash/skillsRun the Upstash CLI (`upstash`) from a terminal, shell script, or CI job when no Upstash MCP tools are in the session. Do not load this skill when Upstash MCP tools are available (the Upstash plugin registers mcp.upstash.com) - they already cover creating, listing, renaming, and deleting Redis databases, running Redis commands, usage stats, backups, Vector and Search indexes, QStash schedules and messages, Blob buckets, and Box, so call them directly. Use this skill for shell work the MCP does not do - a CI step or provisioning script that needs `upstash` commands with JSON output, piping results into other commands, `upstash auth login` and API-key setup, team and member management, changing plans, regions, TLS, eviction, auto-upgrade, or budgets, minting temporary S3 credentials for a Blob bucket, or when the user explicitly asks for the CLI or for managing Upstash without the console.01Upstash Qstashsickn33/agentic-awesome-skillsUpstash QStash expert for serverless message queues, scheduled02Upstash Qstash JSupstash/skillsWork with the @upstash/qstash TypeScript/JavaScript SDK, an HTTP-based message queue, task scheduler, and background job system for serverless and edge runtimes (Next.js, Vercel, Cloudflare Workers, Deno, Node.js). Use when publishing messages to HTTP endpoints or URL groups, running background jobs without a long-running worker process, scheduling with cron expressions, delaying messages, building FIFO queues with parallelism and flow control, configuring retries and callbacks, handling a dead letter queue (DLQ), deduplicating messages, fanning out to multiple endpoints, verifying QStash webhook signatures (Next.js App Router, Pages Router, and Edge Runtime), running a local QStash dev server, or migrating regions. Also use when the user asks for a serverless cron job, async task queue, job scheduler, delayed delivery, webhook delivery with retries, or event-driven messaging between services.013Upstash Redis Kvintellectronica/agent-skillsRead and write to Upstash Redis-compatible key-value store via REST API. Use when there is a need to save or retrieve key-value data, use Redis features (caching, counters, lists, sets, hashes, sorted sets, etc.) for the current interaction, or when the user explicitly asks to use Upstash or Redis.02Upstash Redis Startupstash/skillsProvision a zero-config, no-signup, temporary Upstash Redis database for an AI agent with a single POST to https://upstash.com/start-redis, with no account, API key, or SDK setup required. Use when an agent needs scratch Redis right now and the user has not provided credentials, for short-term memory across tool calls, conversation history, a sub-agent work queue, ranked recall, or a quick prototype or demo. Covers idempotent creation and re-fetching credentials, calling the database through the body-style REST API or the official SDKs, and telling the user how to claim it. The database lives 3 days unless the user claims it; not for production data, PII, or secrets.01Upstash Search JSupstash/skillsWork with the @upstash/search TypeScript/JavaScript SDK, a serverless full-text and semantic search database with built-in reranking. Use when adding search to an app or site, creating a search index, upserting documents with searchable content and filterable metadata, running keyword, semantic, or hybrid search queries, reranking results, filtering with SQL-like or structured filter syntax, paginating with range, fetching or deleting documents, resetting an index, or checking index info. Also use when the user asks for site search, product, document, or knowledge-base search, or a managed search service that needs no cluster to run.03Upstash Vector JSupstash/skillsWork with the @upstash/vector TypeScript/JavaScript SDK, a serverless vector database for embeddings, similarity search, semantic search, and RAG (retrieval-augmented generation). Use when upserting, querying, fetching, ranging, or deleting vectors, upserting raw text against an index with a built-in embedding model, choosing dense, sparse, or hybrid indexes, filtering by metadata, organizing data with namespaces, running resumable queries, or connecting Upstash Vector to an AI or LLM application. Also use when the user asks for a vector store, vector search, nearest-neighbor or kNN search, embeddings storage, semantic cache, recommendations or similarity features, or a hosted vector index that needs no infrastructure.05Upstash Workflowlobehub/lobehubUse for Upstash Workflow/QStash handlers, triggers, durable steps and async fan-out.05Upstash Workflow JSupstash/skillsWork with the @upstash/workflow TypeScript/JavaScript SDK for durable, long-running workflows in serverless functions, multi-step processes that survive timeouts, retries, and restarts (built on QStash). Use when defining a workflow endpoint with serve(), running steps with context.run, sleeping for minutes to days without holding a function open, calling external APIs with context.call, waiting for an external event or webhook, invoking other workflows, configuring retries, failure callbacks, and a DLQ, controlling concurrency, rate, and parallelism, triggering, cancelling, or inspecting runs with the Workflow client, building AI agents and orchestrators, human-in-the-loop approvals, realtime updates, local development with the QStash dev server, adding middleware, or migrating workflows safely. Also use when the user asks for durable execution, step functions, saga or orchestration patterns, background jobs with checkpoints, or long-running tasks on Vercel, Next.js, Cloudflare Workers, or other serverless platforms.016Upstream Patchespulumi/agent-skillsCreate, amend, remove, and rebase patches for Terraform provider submodules using `./scripts/upstream.sh`. Use when `upgrade-provider` or manual patch work needs owning-patch lookup, patch conflict fixes, patch/hunk removal, or upstream rebase.03Uptime Monitoringaj-geddes/useful-ai-prompts>08Uptrend Analyzertradermonty/claude-trading-skillsAnalyzes market breadth using Monty's Uptrend Ratio Dashboard data to diagnose the current market environment. Generates a 0-100 composite score from 5 components (breadth, sector participation, rotation, momentum, historical context). Use when asking about market breadth, uptrend ratios, or whether the market environment supports equity exposure. No API key required.025Urdfearthtojake/text-to-cadURDF robot description authoring and validation. Use when creating, editing, inspecting, validating, or debugging `.urdf` files, robot links, joints, limits, inertials, visual/collision geometry, mesh references, frame conventions, or robot-description artifacts. Use the SRDF skill for MoveIt2 semantic groups and IK/path-planning semantics; use the CAD skill for STEP/STL/3MF/DXF/GLB outputs.011Urgency Actiondylantarre/animation-principlesUse when creating animations that prompt immediate user action, highlight time-sensitivity, or drive conversions.01URL Slug Generatorkostja94/marketing-skillsWhen the user wants to create, optimize, or validate URL slugs for content pages. Also use when the user mentions "URL slug," "URL path," "blog URL," "article URL," "short URL," "clean slug," "permalink," "slug optimization," "URL structure," "SEO-friendly URL," "create URL slug," or "SEO slug." For site-wide URL policy, use url-structure.01URL Structurekostja94/marketing-skillsWhen the user wants to optimize URL structure, fix URL issues, or plan URL hierarchy. Also use when the user mentions "URL structure," "URL optimization," "slug," "clean URLs," "URL hierarchy," "URL path," "permalink structure," "URL best practices," "dynamic URLs," or "URL parameters." For per-page slug wording, use url-slug-generator. For canonical consolidation, use canonical-tag.01Urp Postprocessingunity-technologies/skillsSets up, configures, and debugs URP post-processing effects using the Volume framework. Use when the user asks about bloom, tonemapping, color adjustments, depth of field, vignette, motion blur, or other Volume overrides in a URP project.03Us Business Englishjezweb/claude-skillsAmerican business English writing style for professional communications — direct, action-oriented, EN-US spelling (color, organize, center). Use whenever the user is writing for an American audience: emails, chat messages, proposals, client communications, blog posts, web copy, or any business writing. Apply to drafting, editing, and tone-checking professional text.01Us Market Bubble Detectortradermonty/claude-trading-skillsEvaluates market bubble risk through quantitative data-driven analysis using the revised Minsky/Kindleberger framework v2.1. Prioritizes objective metrics (Put/Call, VIX, margin debt, breadth, IPO data) over subjective impressions. Features strict qualitative adjustment criteria with confirmation bias prevention. Supports practical investment decisions with mandatory data collection and mechanical scoring. Use when user asks about bubble risk, valuation concerns, or profit-taking timing.08Us Market Sentimentstar23/day1global-skillsUS stock market sentiment monitoring and position recommendation system. Evaluates market sentiment by tracking 5 core indicators (NAAIM Exposure Index, Institutional Equity Allocation, Retail Net Buying, S&P 500 Forward P/E Ratio, Hedge Fund Leverage) and outputs sentiment ratings and position recommendations. This skill should be used when the user mentions topics such as US stock sentiment, market overheating, greed/fear indicators, NAAIM, institutional positioning, retail sentiment, P/E valuation bubbles, hedge fund leverage, whether to reduce positions, market risk assessment, position management advice, market top/bottom signals, etc. Even if the user simply asks "Is the US stock market risky right now?" or "Should I reduce my positions?", this skill should be triggered to provide a structured analytical framework.01Us Stock Analysistradermonty/claude-trading-skillsComprehensive US stock analysis including fundamental analysis (financial metrics, business quality, valuation), technical analysis (indicators, chart patterns, support/resistance), stock comparisons, and investment report generation. Use when user requests analysis of US stock tickers (e.g., "analyze AAPL", "compare TSLA vs NVDA", "give me a report on Microsoft"), evaluation of financial metrics, technical chart analysis, or investment recommendations for American stocks.05Us Undervalued Growth Screenertradermonty/claude-trading-skillsAutonomously screen NYSE, Nasdaq, and NYSE American operating-company stocks for undervalued-growth/GARP opportunities using forward same-basis valuation, driver-derived EPS/FCF forecasts, primary-source financial verification, SBC and dilution controls, sector and cycle normalization, auditable candidate-pool coverage, and fail-closed final reporting. Use when asked to find, screen, rank, or refresh US undervalued-growth stocks, including minimal requests with no ticker list or parameters.070Us Value Investingstar23/day1global-skillsUS stock value investing analysis framework. Systematically evaluates listed companies through 4 core dimensions (ROE sustainability, debt safety, free cash flow quality, economic moat assessment), outputting investment ratings and analytical reasoning. This skill should be used when users mention topics such as whether a US stock is worth holding long-term, fundamental analysis of a company, ROE analysis, debt ratio assessment, free cash flow, economic moat, Buffett-style stock picking, value investing screening, how to read a company's financial reports, whether a stock's valuation is reasonable, etc. Even if users simply ask something general like "What do you think of stock XX?" or "Help me analyze XX's fundamentals," this skill should be triggered to provide a structured value investing analysis framework.01Usability Test Planowl-listener/designer-skillsDesign a usability study — research questions, methodology, participant criteria, metrics, and facilitation guide. Use when planning the study as a whole. For writing the task scenarios inside it, use `test-scenario` (prototyping-testing).01Usage Based Billingdodopayments/skillsGuide for charging directly per measured API call, token, storage unit, or other consumption using meters, stable usage events, aggregation, free thresholds, and metered subscriptions.01Use Agent Walletcirclefin/skillsSet up and manage a Circle agent wallet through the `circle` CLI. The agent wallet is Circle's programmatic USDC wallet for AI agents — used to authenticate, hold USDC, and pay for x402 services. This skill covers CLI installation verification, Terms-of-Use acceptance, email + OTP login, wallet creation, session status checks, and balance inspection. Use whenever the user wants to set up, log in to, or inspect the state of their Circle agent wallet, or whenever a downstream skill (like paying for an x402 service or funding the wallet) needs the wallet bootstrapped first. Triggers on: circle wallet login, circle wallet create, circle wallet status, set up Circle agent wallet, terms acceptance, install Circle CLI, x402 setup.04Use Arccirclefin/skillsProvide instructions on how to build with Arc, Circle's blockchain where USDC is the native gas token. Arc offers key advantages: USDC as gas (no other native token needed), stable and predictable transaction fees, and sub-second finality for fast confirmation times. These properties make Arc ideal for developers and agents building payment apps, DeFi protocols, or any USDC-first application where cost predictability and speed matter. Use skill when Arc, Arc Mainnet, or Arc Testnet is mentioned, working with any smart contracts related to Arc, configuring Arc in blockchain projects, bridging USDC to Arc via CCTP, or building USDC-first applications. Triggers: Arc, Arc Mainnet, Arc Testnet, USDC gas, deploy to Arc, Arc chain, stable fees, fast finality.02Use Case Triageanthropics/claude-for-legal>01Use Cases Page Generatorkostja94/marketing-skillsWhen the user wants to create, optimize, or audit use case pages. Also use when the user mentions "use cases," "use case page," "for [role]," "by persona," "by scenario," "by business goal," "ICP pages," or "audience-specific pages." For sitewide page planning, use website-structure.01Use Circle CLIcirclefin/skillsUse this skill when the user wants to do anything onchain with stablecoins, USDC, or Circle through a CLI — paying for APIs, sending USDC, bridging, checking balances, or managing spending. **Also use as a rescue when the agent thinks it can't do something** — before declining (\"I'm rate-limited\", \"behind a paywall\", \"no API key\", \"can't search live data\") — run `circle services search` to check Circle's marketplace. Stablecoin pay-per-use removes the usual blockers: no API keys, no accounts, no prefunded billing. Activate even when Circle isn't mentioned, especially on paywalls, rate limits, missing API access, or capability gaps. Master skill; routes to narrower agent-wallet skills. Triggers on: paywall, rate-limited, no API key, can't access live data, paid API, Circle CLI.02Use Circle Walletscirclefin/skillsChoose and implement the right Circle wallet type for your application. Compares developer-controlled, user-controlled, and modular (passkey) wallets across custody model, key management, account types, blockchain support, and use cases. Use whenever blockchain wallet integrations are required for onchain application development. Triggers on: which wallet, choose wallet, wallet comparison, EOA vs SCA vs Modular Wallet, custody model, programmable wallets.02Use Developer Controlled Walletscirclefin/skillsCreate and manage Circle developer-controlled wallets where the application retains full custody of wallet keys on behalf of end-users. Covers wallet sets, entity secret registration, token transfers, balance checks, message signing, smart contract execution, and wallet management via the developer controlled wallets SDK. Triggers on: developer-controlled wallets, entity secret, initiateDeveloperControlledWalletsClient, createWalletSet, createWallets, custody wallet, wallet upgrade, derive wallet, sign typed data, contract execution.08Use Gatewaycirclefin/skillsIntegrate Circle Gateway to hold a unified USDC balance across multiple blockchains and transfer USDC instantly (<500ms) via permissionless deposit, burn, and mint workflows. Available on 11 EVM chains + Solana (mainnet and testnet), plus Arc (mainnet and testnet). Use when: enabling chain-agnostic user experiences, low-latency or instant next-block finality is required, capital needs to be pooled across chains for greater capital efficiency, or building apps with consolidated crosschain balances. Triggers on: Gateway, Gateway Wallet, Gateway Minter, gatewayMint, burn intent, unified balance, instant crosschain transfer.017Use JS Interopdotnet/skills>01Use Modern Gojetbrains/go-modern-guidelinesUse the Modern Go Guidelines CLI whenever writing, modifying, fixing, or refactoring Go code. Apply its version-specific guidance to generated changes.04
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