Backend & APIs

Guidelines for Flask Python development with best practices for blueprints, RESTful APIs, and application factories.

Authenticate with AEM Edge Delivery Services. Opens browser for login and captures token. Works for admin.hlx.page and Config Service APIs regardless of content source (Document Authoring, SharePoint, or Google Drive).

Odoo 18 development reference for Python models and ORM (search, domain, read_group, compute fields), XML/CSV data and views, OWL/JS client code, QWeb reports, security (ACL, record rules, groups), cron and server actio…

Build or review Langfuse backend code. Use for tRPC routers, public REST APIs, BullMQ processors, services, middleware, Prisma or ClickHouse access, OpenTelemetry, Zod, environment configuration, or backend tests.

Develop lightweight Flask APIs with routing, blueprints, database integration, authentication, and request/response handling. Use when building RESTful APIs, microservices, or lightweight web services with Flask.

Best practices for building Stripe integrations. Use when implementing payment processing, checkout flows, subscriptions, webhooks, Connect platforms, or any Stripe API integration.

API design principles and decision-making. REST vs GraphQL vs tRPC selection, response formats, versioning, pagination.

Guidelines for building robust APIs with Express.js and TypeScript, covering middleware patterns, routing, and security best practices

Create and manage Shopify products via the Admin GraphQL API or CSV import. Workflow: gather data, choose method, execute, verify. Use whenever the user wants to add products to Shopify, bulk-import a catalog from CSV/s…

Build complete, functional apps with InstantDB as the backend. Use when creating React/vanilla JS or expo applications. Triggers on requests for building apps.

Complete guide for Go backend development including concurrency patterns, web servers, database integration, microservices, and production deployment

Call third-party APIs through the Maton gateway, which injects the credential for an app the user has already connected. Use this skill when the user names a connected app and a concrete action in it - read a mailbox, q…

Vite plugin that reimplements the Next.js API surface for deploying anywhere, including Cloudflare Workers

Provides authoritative guidance on Amazon Neptune Database and Neptune Analytics for graph, knowledge-graph, and relationship-heavy workloads — fraud detection / fraud rings, agentic memory / chatbot context across sess…

Implements OAuth 2.0/2.1 authorization flows in Fastify applications — configures authorization code with PKCE, client credentials, device flow, refresh token rotation, JWT validation, and token introspection/revocation…

Binance Convert request using the Binance API. Authentication requires API key and secret key.

cuOpt REST server — what it does and how requests flow. Domain concepts; no deploy or client code.

Use upbit CLI for Upbit REST API — spot orders, market data, withdrawals, deposits, travel rule, account management. 업비트 CLI로 시세 조회, 주문, 잔고 확인, 입출금을 처리합니다. Trigger this skill whenever the user wants to query prices, pla…

Use this skill to get documentation for third-party APIs, SDKs or libraries before writing code that uses them to ensure you have the latest, most accurate documentation. This is a better way to find documentation than…

LP, MILP, and QP (beta) with cuOpt — CLI only (MPS/LP/QPS files, cuopt_cli). Use when the user is solving LP, MILP, or QP from an MPS or LP file via command line.

LP, MILP, and QP (beta) with cuOpt — C API only. Use when the user is embedding LP, MILP, or QP in C/C++.

Scrape and extract public data from 27+ social media platforms using the ScrapeCreators REST API. Covers TikTok, Instagram, YouTube, LinkedIn, Facebook, Twitter/X, Reddit, Threads, Bluesky, Pinterest, Snapchat, Twitch,…

Binance Algo request using the Binance API. Authentication requires API key and secret key.

How WAL mechanics, checkpointing, concurrency rules, recovery work in tursodb

Work 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 document…

Set up Shopify CLI auth and Admin API access for a store. Install CLI, authenticate, create custom app, store access token, verify. Use whenever the user wants to connect to a Shopify store, set up Shopify API access, i…

Apply when building backend service apps under node/ in a VTEX IO project or configuring service.json routes. Covers the Service class, middleware functions, ctx.clients pattern, JanusClient, ExternalClient, MasterDataC…

Apply when working with MasterData v2 entities, schemas, or MasterDataClient in VTEX IO apps, or when anyone designing or implementing a solution must scrutinize whether Master Data is the correct storage. The skill pro…

Use when hardening Go code at API boundaries — copying slices/maps, verifying interface compliance, using defer for cleanup, time.Time/time.Duration, or avoiding mutable globals. Also use when reviewing for robustness c…

Apply when working with GraphQL schema files in graphql/ or implementing resolvers in node/resolvers/ for VTEX IO apps. Covers schema.graphql definitions, @cacheControl and @auth directives, custom type definitions, and…

Use when working with bind arguments, metadata schemas, framework errors (redirect/notFound/forbidden/unauthorized), type inference utilities (InferSafeActionFnInput/Result), or server-level action callbacks

Authenticate to the Sumsub API with an App Token + secret key (HMAC-SHA256 request signing). TRIGGER when the user asks to "call / sign / authenticate Sumsub API requests", debugs `401 Unauthorized` / signature errors a…

Catch-all fallback for any Sumsub API task that does NOT match a more specific skill (e.g. `create-sumsub-level`, `sumsub-create-questionnaire`, `sumsub-api-auth`). TRIGGER when the user wants to call, inspect, or debug…

Write, review, or improve Swift APIs using Swift API Design Guidelines for naming, argument labels, documentation comments, terminology, and general conventions. Use when designing new APIs, refactoring existing interfa…

Manage Sumsub `clientWebhooks` (event subscriptions for applicantReviewed / applicantPending / kytTxn / etc.) — reads via `/resources/api/clientWebhooks`, writes via `/resources/api/agent/clientWebhooks`. **Sandbox only…

Best practices for Apache Kafka event streaming and distributed messaging. Use when building event-driven architectures, implementing producer/consumer patterns, designing topic partitioning strategies, setting up Kafka…

Apply when defining, validating, or consuming VTEX IO app settings. Covers settingsSchema, app-level configuration boundaries, and how backend or frontend code should depend on settings safely. Use for merchant-configur…

Submit a transaction to Sumsub Transaction Monitoring (KYT) via the ApplicantResource API. TRIGGER when the user asks to "submit / create / send / record a transaction", "test a KYT rule with a transaction", post a fiat…

Apply when improving VTEX IO Node or .NET services for latency, throughput, and resilience: in-process LRU, VBase, stale-while-revalidate, AppSettings loading, request context, parallel client calls, and avoiding duplic…

Build a realtime chat room backend with Rivet Actors: one actor per room, SQLite-backed message history, and WebSocket broadcast to every connected client.

Binance Derivatives-trading-portfolio-margin-pro request using the Binance API. Authentication requires API key and secret key.

Multi-tenant data isolation with one Rivet Actor per tenant: the actor key is the tenant id, so each tenant gets its own isolated dataset and migrations.

Agent skill for dev-backend-api - invoke with $agent-dev-backend-api

Build a collaborative text editor backend with Yjs CRDTs and Rivet Actors: per-document actors relay sync and awareness updates and persist snapshots.

微信支付商品券接入解决方案，覆盖券类型选型、发券/核销/查询/退券/回调全链路，提供选型/示例代码/业务速查/质量评估/排障五大能力。Use when user mentions "商品券", "发券", "核销", "创建商品券", "商品券代码", "商品券回调", "商品券退券", or asks to "接入商品券", "生成发券代码", "排查商品券问题".

Apply when designing or implementing HTTP endpoints exposed by a VTEX IO backend service. Covers route boundaries, handler structure, middleware composition, request validation, and response modeling for service.json ro…

SAP Cloud Application Programming Model (CAP) development skill using Capire documentation. Use when: building CAP applications, defining CDS models, implementing services, working with SAP HANA/SQLite/PostgreSQL databa…

Apply when designing or implementing how a VTEX IO backend app integrates with VTEX services or external APIs through @vtex/api and @vtex/clients. Covers choosing the correct client type, registering clients in IOClient…

USE FOR getting local business/POI details. Requires POI IDs from local-place-search, or from web-search with result_filter=locations. Returns full business information including ratings, hours, contact info. Max 20 IDs.

Guidelines for implementing NextAuth.js (Auth.js v5) authentication in Next.js applications with session management and security best practices