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

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18,175 skills

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Use Modular Walletscirclefin/skillsBuild crypto wallets using Circle Modular Wallets SDK with passkey authentication, gasless transactions, and extensible module architecture. Use when: creating crypto wallets with passkey-based (WebAuthn) registration and login, sending gasless transactions using Circle Gas Station paymaster, batching multiple transactions into a single user operation, implementing passkey recovery using BIP-39 mnemonic phrases, building advanced onchain wallets with custom modules (multisig, subscriptions, session keys). Triggers on: MSCA, passkey authentication, WebAuthn, paymaster, Gas Station, ERC-4337, ERC-6900, toCircleSmartAccount, toModularTransport, sendUserOperation, 2D nonce, passkey recovery, EIP-1193 provider.03 Use My Browserxixu-me/skillsUse when work depends on the user's live browser session or visible rendered state rather than static fetches, especially for browser debugging contexts or DevTools-selected elements or requests, logged-in dashboards or CMS flows, localhost apps, forms, uploads, downloads, media inspection, DOM or iframe inspection, Shadow DOM, or browser failures that look like soft 404s, auth walls, anti-bot checks, or rate limits.015 Use Railwaycline/skills>020 Use Railwayrailwayapp/railway-skills>026 Use Smart Contract Platformcirclefin/skillsDeploy, import, interact with, and monitor smart contracts using Circle Smart Contract Platform APIs. Supports bytecode deployment, template contracts (ERC-20/721/1155/Airdrop), ABI-based read/write calls, and webhook event monitoring. Keywords: contract deployment, smart contract, ABI interactions, template contracts, event monitoring, contract webhooks, bytecode, ERC-1155, ERC-20, ERC-721.06 Use Sparkreaddle/spark-cli-skills>-01 Use Templateplayableintelligence/game-creatorClone a game template from the gallery as a starting point. Use when the user says "use a template", "start from a template", "clone flappy-bird", "use the platformer template", or wants to quickly bootstrap a game from an existing example. Do NOT use for creating a game from scratch (use viral-game for one-shot builds or make-game for milestone-driven projects).01 Use Tinyfishtinyfish-io/tinyfish-cookbookUse TinyFish for web search, fetching URLs, reading pages, current information, source-backed answers, research, docs, pricing/product pages, extraction, scraping, and browser automation. Use whenever the user asks to search, find, look up, research, compare, get information from the web, summarize a URL, fetch page content, or automate a website.01 Use Topbarcognitedata/builder-skills>-04 Use Usdccirclefin/skillsUSDC is Circle's stablecoin deployed across multiple blockchain ecosystems including EVM chains (Ethereum, Base, Arbitrum, Polygon, Arc) and Solana. Use this skill to check balances, send transfers, approve spending, and verify transactions. Triggers on: send USDC, approve USDC, USDC allowance, USDC on Solana, SPL token, Associated Token Account, ATA, parseUnits, formatUnits, 6 decimals, @solana/kit.03 Use User Controlled Walletscirclefin/skillsBuild non-custodial wallets where end users retain control of their private keys via Circle's user-controlled wallets SDK. Supports Google, Apple, Facebook social login, email OTP, and PIN authentication with MPC-based key management. Covers wallet creation, token transfers, message signing, smart contract execution, and wallet management. Triggers on: user-controlled wallets, social login wallet, email OTP wallet, PIN wallet, w3s-pw-web-sdk, executeChallenge, MPC wallet, userToken, deviceToken, contract execution.08 User Feedback Claritydylantarre/animation-principlesUse when users don't notice feedback, miss state changes, or can't tell if their action worked01 User Feedback Synthesizerpmprompt/claude-plugin-product-managementAnalyze collections of user feedback to identify patterns and themes. Use when you have user feedback from multiple sources that needs synthesis.01 User Flow Diagramowl-listener/designer-skillsDiagram screen-level paths, decision points, and branch logic. Use when specifying how a feature is traversed. For the emotional end-to-end arc, use `journey-map` (design-research).01 User Flows And Guided Pathsdembrandt/dembrandt-skillsRelated features and tasks — such as purchase flows, onboarding, or multi-step configuration — should be designed as natural, guided paths that feel coherent and fit the product hierarchy. Use wizards for complex sequential tasks. Use when designing flows, onboarding, checkout, setup sequences, or any multi-step user journey.01 User Guide Creationaj-geddes/useful-ai-prompts>08 User Journeysalinaqi/maggyUser experience flows - journey mapping, UX validation, error recovery01 User Onboardingstarchild-ai-agent/official-skills|03 User Personaowl-listener/designer-skillsBuild research-grounded personas with goals, frustrations, and behavioural patterns. Use when decisions need a consistent user reference. For one session's emotional snapshot use `empathy-map`; for motivation framing use `jobs-to-be-done`.01 User Persona Creationaj-geddes/useful-ai-prompts>06 User Personasphuryn/pm-skillsCreate refined user personas from research data — 3 personas with JTBD, pains, gains, and unexpected insights. Use when building personas from survey data, creating user profiles from research, or segmenting users for product decisions.01 User Researchanthropics/knowledge-work-pluginsPlan, conduct, and synthesize user research. Trigger with "user research plan", "interview guide", "usability test", "survey design", "research questions", or when the user needs help with any aspect of understanding their users through research.01 User Research Analysisaj-geddes/useful-ai-prompts>07 User Research Synthesisanthropics/knowledge-work-pluginsSynthesize qualitative and quantitative user research into structured insights and opportunity areas. Use when analyzing interview notes, survey responses, support tickets, or behavioral data to identify themes, build personas, or prioritize opportunities.01 User Segmentationphuryn/pm-skillsSegment users from feedback data based on behavior, JTBD, and needs. Identifies at least 3 distinct user segments. Use when segmenting a user base, analyzing diverse user feedback, or building a segmentation model.01 User Storiesphuryn/pm-skillsCreate user stories following the 3 C's (Card, Conversation, Confirmation) and INVEST criteria with descriptions, design links, and acceptance criteria. Use when writing user stories, breaking down features into backlog items, or defining acceptance criteria.01 User Storydeanpeters/product-manager-skillsCreate user stories with Mike Cohn format and Gherkin acceptance criteria. Use when turning user needs into development-ready work with clear outcomes and testable conditions.05 User Story Mappingdeanpeters/product-manager-skillsCreate a user story map that lays out activities, steps, tasks, and release slices. Use when planning a workflow, backlog, or MVP around the user journey.04 User Story Mapping Workshopdeanpeters/product-manager-skillsRun a user story mapping workshop with adaptive questions and a structured map output. Use when you need backbone activities, tasks, and release slices for a workflow.02 User Story Splittingdeanpeters/product-manager-skillsBreak a large story or epic into smaller deliverable stories using proven split patterns. Use when backlog items are too big for estimation, sequencing, or independent release.04 User Story Writingaj-geddes/useful-ai-prompts>07 Userinterface Wikiraphaelsalaja/userinterface-wikiUI/UX best practices for web interfaces. Use when reviewing animations, CSS, audio, typography, UX patterns, prefetching, or icon implementations. Covers 11 categories from animation principles to typography. Outputs file:line findings.0157 Usernotificationsprisma-labs-dev/apple-skillsAPI reference: UserNotifications. Query for local/remote notifications, triggers, notification content.07 Usfiscaldatak-dense-ai/scientific-agent-skillsQuery the U.S. Treasury Fiscal Data REST API for federal financial data. No API key required. Use for national debt (Debt to the Penny), Daily Treasury Statements, Monthly Treasury Statements, Treasury securities auctions, interest rates, foreign exchange rates, savings bonds, or U.S. government revenue and spending statistics.09 Using Beenulab/beeUse when interacting with Backlog project management service - creating issues, listing pull requests, managing projects, checking notifications, or any Backlog operation via CLI01 Using Chrisbanes Skillschrisbanes/skillsUse when routing Kotlin or Jetpack Compose work, or physical Android benchmark evidence that needs a configuration decision, especially when several Kotlin or Compose concerns overlap.01 Using Dbt For Analytics Engineeringdbt-labs/dbt-agent-skillsBuilds and modifies dbt models, writes SQL transformations using ref() and source(), creates tests, and validates results with dbt show. Use when doing any dbt work - building or modifying models, debugging errors, exploring unfamiliar data sources, writing tests, or evaluating impact of changes.09 Using Git Worktreesjnmetacode/superpowers-zh当需要开始与当前工作区隔离的功能开发，或在执行实现计划之前使用——通过原生工具或 git worktree 回退机制确保隔离工作区存在01 Using Git Worktreesobra/superpowers-skillsCreate isolated git worktrees with smart directory selection and safety verification01 Using Git Worktreessickn33/agentic-awesome-skillsGit worktrees create isolated workspaces sharing the same repository, allowing work on multiple branches simultaneously without switching.01 Using Marketplace Templatesceligo/aiFind, install, and reuse pre-built integration blueprints from the Celigo Marketplace -- Templates (unlocked, fully editable, no ongoing updates) and Integration Apps (vendor-maintained, upgrade-protected, receive updates). Covers whole-template install versus copying a single element, how connections are mapped rather than copied, the dependency cascade, and when to start from a blueprint instead of building from scratch. Use when browsing the marketplace, installing a template or Integration App, or copying an existing flow, export, import, or connection into your own integration.01 Using Medusa Cloudmedusajs/medusa-agent-skillsManages Medusa Cloud resources through the Cloud CLI (mcloud). Use when deploying, debugging deployments, managing environments, environment variables, or any Medusa Cloud operation. CRITICAL for mcloud commands, deployment failures, build logs, Cloud setup, and CI/CD workflows.04 Using N8n MCP Skillsczlonkowski/n8n-skillsUse when building, editing, validating, testing, or debugging an n8n workflow through the n8n-mcp MCP server — designing a flow, configuring a node, writing an expression or Code node, wiring credentials, or fixing one that misbehaves. The entry-point skill for the n8n-mcp-skills pack: it routes you to the right specialist skill, gives working knowledge of every n8n-mcp tool from turn one, and states the rules that keep workflows from breaking in production. Always consult it first on any n8n, workflow, node, or automation task — even a quick one-off, and even when the user names no skill — because n8n's surface drifts between versions and the specialist skills prevent silent failures.02 Using N8n Skills Officialn8n-io/skillsUse when working with n8n workflows in any capacity. The always-on protocol for the n8n-skills plugin, loaded by the SessionStart hook every session. Routes to the right skill, summarizes every n8n MCP tool (closing the deferred-description gap), and lists the cross-cutting rules.01 Using Sopsjssblck/agentsUse for secrets or key setup in a repo with .sops.yaml, encrypted environment files, or a pnpm secrets script.04 Using Superpowersdavila7/claude-code-templatesUse when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions01 Using Superpowersjnmetacode/superpowers-zh在开始任何对话时使用——确立如何查找和使用技能，要求在任何响应（包括澄清性问题）之前调用 Skill 工具08 Using Superpowerssickn33/agentic-awesome-skillsUse when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions01

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