Backend
1,310 skills.
Browse
convex-costget-convex26KPreview Convex spend — rank functions by bytes/documents-read × call-volume from insights, project each cost driver's growth curve, name the cheapest fix; confirm-cost for paid actions.convex-billingget-convex26KAdd Stripe billing/payments to the Convex app via @convex-dev/stripe (checkout + webhook + gating).convex-suggestget-convex26KSuggest the matching Convex component when the user hand-rolls a pattern it already solves (crons, sharded-counter, rate-limiter, storage, search, presence, workflow, RAG, prosemirror-sync). Passive — suggest after the task, never interrupt. Never install without consent.fastapi-templateswshobson25KCreate production-ready FastAPI projects with async patterns, dependency injection, and comprehensive error handling. Use when building new FastAPI applications or setting up backend API projects.extension-stripecaffeinelabs23KPayment support based on Stripe, supporting credit cards and debit cardsextension-authorizationcaffeinelabs23KAuthorization system with role-based access control. Must-have for all apps that manage personal or access-restricted data.extension-email-verificationcaffeinelabs23KSupport for sending an email with a link the recipient can click to prove they own the email address.extension-emailcaffeinelabs23KSupport for sending service/transactional emails. Don't use this for sending marketing emails or verification emails.extension-http-outcallscaffeinelabs23KHTTP outcalls performed by the backend canister (not in the frontend), including mandatory local verification of external REST API requests.extension-core-infrastructurecaffeinelabs23KCore infrastructure providing backend connection configuration, storage client, and React app entry point.extension-invite-linkscaffeinelabs23KRequests invite-link / RSVP based access where guests can submit responses without login while admin can view responses with login.extension-user-approvalcaffeinelabs23KApproval-based user management.extension-email-rawcaffeinelabs23KSend an email with multiple to, cc and bcc addresses.extension-openaicaffeinelabs23KMANDATORY recipe for every Caffeine build that calls OpenAI (ChatGPT, GPT-4o, an LLM, a chatbot, embeddings). The ONLY supported path is the `openai-client` mops package with a canister-side API-key bearer. Hand-rolling `ic.http_request` to `api.openai.com/v1/...` is a FORBIDDEN anti-pattern — it leaks the bearer across replicated outcalls (security + 13× billing impact), bypasses the typed request/response bindings, and forces hand-rolled JSON on a language with poor JSON support. Load this skiextension-posting-to-xcaffeinelabs23KMANDATORY recipe for every Caffeine build that posts to X (Twitter). The ONLY supported path is the `x-client` mops package with OAuth 2.0 PKCE. Hand-rolling `ic.http_request` or `icBooking.http_request` calls to `api.x.com/2/tweets`, `api.x.com/2/oauth2/token`, or any other X endpoint is a FORBIDDEN anti-pattern — it bypasses bearer auth, replication-cost safeguards, and `x-client`'s null-field handling. Load this skill whenever the user, spec, or any prior task mentions tweeting, live-tweetingextension-oqlcaffeinelabs23KMake a canister's data queryable by the Caffeine Data Intelligence agent. Use whenever an app stores structured data (Maps/Lists/arrays of records) that should be answerable in natural language — "top customers", "revenue by region", "active projects". Adds a discoverable `schema()` and a JSON `execute()` query endpoint via the `caffeineai-oql` mops package's `Expose` mixin.gemini-api-devgoogle-gemini22KUse this skill when writing code that calls the Gemini API for text generation, multi-turn chat, multimodal understanding, image generation, video generation, speech generation (TTS), voice design, voice replication, streaming responses, background research tasks, function calling, structured output, or migrating from the old generateContent API. Covers SDK usage and best practices for Gemini models and agents in Python and TypeScript.laravel-specialistjeffallan22KBuild and configure Laravel 10+ applications, including creating Eloquent models and relationships, implementing Sanctum authentication, configuring Horizon queues, designing RESTful APIs with API resources, and building reactive interfaces with Livewire. Use when creating Laravel models, setting up queue workers, implementing Sanctum auth flows, building Livewire components, optimising Eloquent queries, or writing Pest/PHPUnit tests for Laravel features.discover-analytics-patternsamplitude22KDiscovers how analytics tracking calls are actually written in this codebase — the concrete SDK calls, function signatures, and import patterns used to send events. Use this skill whenever you need to understand the existing analytics instrumentation patterns before adding new tracking, when someone asks "how do we track events here?", "show me the analytics setup", "what's the analytics pattern in this codebase?", or any time the instrument-events or discover-event-surfaces skills are about to java-springbootgithub21KGet best practices for developing applications with Spring Boot.resendresend20KUse when working with the Resend email API — sending transactional emails (single or batch), receiving inbound emails via webhooks, managing email templates, tracking delivery events, managing domains, contacts, broadcasts, webhooks, API keys, automations, events, viewing API request logs, checking account usage and quotas, or setting up the Resend SDK. Always use this skill when the user mentions Resend, even for simple tasks like "send an email with Resend" — the skill contains critical gotchaconnector-googlemailcaffeinelabs20KMANDATORY recipe for every Caffeine build that sends email through the user's own Gmail account. The ONLY supported path is the `googlemail-client` mops package (Gmail REST API) combined with the `google-oauth` mops package (token exchange + refresh + PKCE). Hand-rolling `ic.http_request` calls to `oauth2.googleapis.com` or `gmail.googleapis.com` is a FORBIDDEN anti-pattern — it bypasses bearer auth, replication-cost safeguards, and the `google-oauth` library's percent-encoding and JSON parsing.tavily-best-practicestavily-ai19KBuild production-ready Tavily integrations with best practices baked in. Reference documentation for developers using coding assistants (Claude Code, Cursor, etc.) to implement web search, content extraction, crawling, and research in agentic workflows, RAG systems, or autonomous agents.okx-dex-marketokx18KQuery read-only DEX token, market, signal, social, trenches, and WebSocket data. Use for token search, rankings, liquidity, holders, risk metadata, clusters, and trades; prices, K-lines/OHLC, indexes, and wallet PnL; smart-money/KOL/whale signals; news, sentiment, and token vibe; meme-launch, developer, bundle/sniper, and co-investor research; or DEX WebSocket clients. Triggers include hot tokens, holder concentration, smart money, top-trader leaderboards, pump.fun research, new token launches, dotnet-backend-patternswshobson18KMaster C#/.NET backend development patterns for building robust APIs, MCP servers, and enterprise applications. Covers async/await, dependency injection, Entity Framework Core, Dapper, configuration, caching, and testing with xUnit. Use when developing .NET backends, reviewing C# code, or designing API architectures.connector-googlecalendarcaffeinelabs17KMANDATORY recipe for every Caffeine build that lists upcoming events or creates events on the user's own Google Calendar. The ONLY supported path is the `googlecalendar-client` mops package (Calendar REST API v3) combined with the `google-oauth` mops package (token exchange + refresh + PKCE). Hand-rolling `ic.http_request` calls to `oauth2.googleapis.com` or `www.googleapis.com/calendar/v3` is a FORBIDDEN anti-pattern — it bypasses bearer auth, replication-cost safeguards, and the `google-oauth`shopify-adminshopify17KWrite or explain **Admin GraphQL** queries and mutations for apps and integrations that extend the Shopify admin. Use when the user wants to **understand, design, or generate** the operation itself—even before deciding how to run it. Do **not** choose `admin` first for **app monetization**—charging merchants for the app itself via app pricing plans, paid app tiers, app subscription charges, or app free trials—use **`app-pricing`** unless the user is maintaining an existing Manual Pricing integraasync-python-patternswshobson17KMaster Python asyncio, concurrent programming, and async/await patterns for high-performance applications. Use when building async APIs, concurrent systems, or I/O-bound applications requiring non-blocking operations.okx-agentic-walletokx16KOperate OKX Onchain OS wallets and execute or inspect on-chain transactions. Use for wallet login/status/accounts/addresses/balances/holdings; receive/send/transfer; swaps, bridges, limit orders, contract calls, gas estimation, simulation, broadcast, and tracking; Bitcoin UTXO/BRC-20/inscriptions; signing, approvals, wallet policy/export, public-address portfolios, security checks, and audit logs.auth-implementation-patternswshobson16KMaster authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.clerk-billingclerk16KClerk Billing for subscription management - render Clerk's PricingTable and in-app checkout drawer, configure subscription plans, seat-limit plans for B2B, feature entitlements with has(), and billing webhooks. Use for SaaS monetization, plan gating, checkout flows, trials, invoicing, and subscription lifecycle management.gmgn-marketgmgnai15KGet crypto and meme token price charts (K-line, candlestick, OHLCV), trending meme coin rankings by volume, newly launched tokens on launchpads (pump.fun, fourmeme, letsbonk, Raydium, etc.), the hot-search ranking (most-searched tokens), and search for a specific token or wallet by name, symbol, contract address, wallet address, or ENS via GMGN API on Solana, BSC, Base, or Ethereum. Use when user asks for price chart, trending tokens, what's pumping, hot coins, most searched tokens, new launchesgemini-apigoogle15KUse when the user asks about using Gemini in an enterprise environment or explicitly mentions Vertex AI, Google Cloud, or Agent Platform. Guides the usage of the Gemini API on Agent Platform with the Google Gen AI SDK. Covers SDK usage (Python, JS/TS, Go, Java, C#), capabilities like multimodal inputs, tools, media generation, caching, batch prediction, and Live API.php-projeffallan15KUse when building PHP applications with modern PHP 8.3+ features, Laravel, or Symfony frameworks. Invokes strict typing, PHPStan level 9, async patterns with Swoole, and PSR standards. Creates controllers, configures middleware, generates migrations, writes PHPUnit/Pest tests, defines typed DTOs and value objects, sets up dependency injection, and scaffolds REST/GraphQL APIs. Use when working with Eloquent, Doctrine, Composer, Psalm, ReactPHP, or any PHP API development.clerk-react-router-patternsclerk14KReact Router v7/v8 patterns with Clerk — rootAuthLoader, getAuth in loaders, clerkMiddleware, protected routes, SSR user data, org switching. Triggers on: react-router auth, rootAuthLoader, getAuth loader, react-router protected route, loader authentication, SSR auth react-router, useNavigate may be used only in the context of a Router.'microsoft-code-referencegithub14KLook up Microsoft API references, find working code samples, and verify SDK code is correct. Use when working with Azure SDKs, .NET libraries, or Microsoft APIs—to find the right method, check parameters, get working examples, or troubleshoot errors. Catches hallucinated methods, wrong signatures, and deprecated patterns by querying official docs.upstash-ratelimit-jsupstash14KRate limiting for serverless and edge apps with the @upstash/ratelimit TypeScript/JavaScript SDK backed by Upstash Redis. Use when adding a rate limiter or throttling to an API route, Next.js middleware, Vercel Edge, Cloudflare Workers, or any HTTP endpoint; returning 429 Too Many Requests; choosing between fixed window, sliding window, and token bucket algorithms; limiting per user, IP, API key, or tenant with prefixes and custom keys; protecting login, signup, form, or AI endpoints from abuse,nodejs-best-practicessickn3314KNode.js development principles and decision-making. Framework selection, async patterns, security, and architecture. Teaches thinking, not copying.okx-dapp-discoveryokx14KDiscover supported third-party DApps and route protocol-specific requests to OKX plugins without signing or broadcasting. Use for DApp discovery or comparison; a named protocol's operations or analytics; Polymarket/UpDown prediction markets, bets, and positions; protocol-native actions involving HYPE/HLP, stETH/wstETH, CAKE, CRV, COMP, RAY, GHO, or PT/YT; pump.fun writes; and unsupported-DApp alternatives. Supported DApp names include Aave, Hyperliquid, PancakeSwap, Morpho, Raydium, Curve, Compoclerk-chrome-extension-patternsclerk13KChrome Extension auth with @clerk/chrome-extension -- popup/sidepanel setup, syncHost for OAuth/SAML via web app, createClerkClient for service workers and headless extensions, stable CRX ID. Triggers on: Chrome extension auth, Plasmo clerk, popup sign-in, syncHost, background service worker token, createClerkClient, headless extension.'fastapi-pythonmindrally13KExpert in FastAPI Python development with best practices for APIs and async operationsclerk-astro-patternsclerk13KAstro patterns with Clerk — middleware, SSR pages, island components, API routes, static vs SSR rendering. Triggers on: astro clerk, clerk astro middleware, astro protected page, clerk island component, astro API route auth, clerk astro SSR.'clerk-nuxt-patternsclerk13KNuxt 3 auth patterns with @clerk/nuxt - middleware, composables, server API routes, SSR. Triggers on: Nuxt auth, useAuth composable, clerkMiddleware Nuxt, server API Clerk, Nuxt route protection.'okx-agent-payments-protocolokx13KHandle agent payments and paid endpoints via x402, MPP, payment links, a2a-pay, and HTTP-payment recurring or metered billing. Use for HTTP 402/payment-required; paid Agent or A2MCP endpoints; x402/Permit2; MPP channels, vouchers, or sessions; HTTP-payment subscriptions; or paymentId/link operations or status. Trigger phrases: x402/x402Version, X-PAYMENT, PAYMENT-REQUIRED, PAYMENT-SIGNATURE, WWW-Authenticate: Payment, x402 exact/exact+Permit2/upto/aggr_deferred, MPP charge/session, channelId/chashopify-storefront-graphqlshopify13KUse for custom storefronts requiring direct GraphQL queries/mutations for data fetching and cart operations. Choose this when you need full control over data fetching and rendering your own UI. NOT for Web Components - if the prompt mentions HTML tags like <shopify-store>, <shopify-cart>, use storefront-web-components instead.neon-functionsneondatabase13KLong-running, serverless Node.js HTTP functions deployed onto your Neon branch, with DATABASE_URL injected automatically and compute that runs next to your data. Use when a user wants to host an API, an AI agent with long streaming responses, a WebSocket or server-sent-events (SSE) server, a webhook handler, a Discord bot, an MCP server, or any request/response workload that risks timing out on short, lambda-style serverless functions — and wants it to branch with their database. Also use for Fustripe-integrationwshobson13KImplement Stripe payment processing for robust, PCI-compliant payment flows including checkout, subscriptions, and webhooks. Use when integrating Stripe payments, building subscription systems, or implementing secure checkout flows.neon-ai-gatewayneondatabase13KOne API and one credential for frontier and open-source LLMs, built into your Neon branch and powered by Databricks. Use when a user wants to call an LLM, add AI/chat/an agent to their app, route between model providers (OpenAI, Anthropic, Google/Gemini, Meta, Alibaba, and more), or avoid juggling separate provider API keys and accounts — especially when they already use Neon and want AI requests to branch with their project. Works with the OpenAI SDK, Anthropic SDK, google-genai, the Vercel AI microservices-patternswshobson12KDesign microservices architectures with service boundaries, event-driven communication, and resilience patterns. Use when building distributed systems, decomposing monoliths, or implementing microservices.grimoire-polymarketfranalgaba12KQueries Polymarket market data and CLOB state, and manages CLOB orders via the Grimoire venue CLI wrapper backed by the official Polymarket CLI.