Agent Skills for Backend Developer APIs

Covers SQL query optimization, indexing strategies, and EXPLAIN analysis to improve database performance and eliminate slow queries.

by wshobson/agents

• Data
• Performance

Covers creating, maintaining, and validating OpenAPI 3.1 specifications, including design-first and code-first approaches, templates, and best practices.

by wshobson/agents

Covers Spring Boot architecture patterns for REST APIs, layered services, Spring Data JPA, caching, async processing, validation, and exception handling.

by affaan-m/ecc

• APIs
• Performance

Covers production-grade Django architecture patterns including project structure, DRF API design, ORM best practices, caching, signals, and middleware.

by affaan-m/ecc

• APIs
• Data
• Auth

Covers C#/.NET backend patterns for building APIs and enterprise apps, including async/await, dependency injection, EF Core, Dapper, caching, and testing.

by wshobson/agents

• Data
• Performance

Covers secure API design patterns including authentication, authorization, input validation, rate limiting, and protection against common API vulnerabilities.

by sickn33/agentic-awesome-skills

• APIs
• Data
• Auth

Builds Laravel 10+ applications covering Eloquent models and relationships, Sanctum authentication, Horizon queues, RESTful API resources, and Livewire interfaces.

by jeffallan/claude-skills

• Data
• Auth
• Reliability

Covers production-grade Laravel architecture patterns including routing, controllers, Eloquent ORM, service layers, queues, events, caching, and API resources.

by affaan-m/ecc

• Data
• Auth
• Performance

Covers production-grade NestJS patterns for modules, controllers, providers, DTO validation, guards, interceptors, config, and testing.

by affaan-m/ecc

• Data
• Auth

Builds PHP 8.3+ applications with Laravel or Symfony, covering strict typing, DTOs, dependency injection, REST/GraphQL APIs, and PHPStan/PHPUnit testing.

by jeffallan/claude-skills

• APIs
• Auth
• Operations

Builds and deploys Firebase SQL Connect backends with PostgreSQL, covering GraphQL schema design, authorized queries and mutations, and type-safe SDK generation.

by firebase/agent-skills

• APIs
• Data
• Auth

Convex backend platform skill covering database, server functions, scheduling, file storage, auth, and realtime sync, routing to capability-specific sub-skills.

by get-convex/agent-skills

• Data
• Auth
• Performance

Guides building type-safe, high-performance backend servers with ElysiaJS, covering routing, validation, authentication, plugins, and deployment.

by elysiajs/skills

• Data
• Auth
• Operations

Performs comprehensive SQL code review across major databases, focusing on injection prevention, access control, indexing, query structure, and schema design.

by github/awesome-copilot

• Data

Designs high-level system architecture, covering architecture patterns, ADRs, technology trade-offs, component interactions, and scalability planning.

by jeffallan/claude-skills

• Data
• Reliability

Provides shared vocabulary and principles for designing deep modules, covering interfaces, seams, adapters, depth, and testability of code boundaries.

by mattpocock/skills

Covers structuring software around the Dependency Rule with ports and adapters, component principles, boundaries, and SOLID for framework-independent business logic.

by wondelai/skills

• Data

Adds rate limiting to serverless and edge apps with the Upstash Ratelimit SDK, covering algorithms, per-user/IP keys, 429 responses, and traffic protection.

by upstash/skills

• APIs
• Performance

Covers idiomatic Go context.Context usage including propagation, cancellation, timeouts, request-scoped values, and context.WithoutCancel for background work.

by samber/cc-skills-golang

• Auth
• Reliability

Covers in-memory caching in Go with samber/hot, including eviction algorithms, TTL, loaders, sharding, stale-while-revalidate, and Prometheus metrics.

by samber/cc-skills-golang

• Performance

Develops and deploys CloudBase projects covering databases, cloud functions, storage, auth, and AI, for Web and mini-program apps.

by tencentcloudbase/cloudbase-skills

• Data
• Auth
• Operations

Needs (stated): Credentials

description: "Guides Microsoft Entra ID app registration, OAuth 2.0 authentication, and MSAL integration. USE FOR: create app registration, register Azure AD app, configure OAuth, set up authentication, add API permissions, generate service principal, MSAL example, console app auth, Entra ID setup, Azure AD authentication. DO NOT USE FOR: Key Vault secrets (use azu

by microsoft/azure-skills

• Auth

Explores and executes the Clerk Backend REST API for listing users, managing organizations, and calling authenticated endpoints with safety checks.

by clerk/skills

• APIs
• Auth

Provides expert guidance on authenticating and authorizing to Google Cloud services and APIs, covering human users, service identities, Application Default Credentials (ADC), and best practices for secure access.

by google/skills

• Auth

| Azure Resource Manager SDK for API Management in .NET. Use for MANAGEMENT PLANE operations: creating/managing APIM services, APIs, products, subscriptions, policies, users, groups, gateways, and backends via Azure Resource Manager. Triggers: "API Management", "APIM service", "create APIM", "manage APIs", "ApiManagementServiceResource", "API policies", "APIM products", "APIM subscriptions".

by microsoft/skills

• Auth

Assess and improve the reliability posture of PaaS Applications (Azure Functions and Azure App Service). Scans deployed resources for zone redundancy, ZRS storage, health probes, and multi-region failover. Presents a feature-pivoted checklist, then drives staged remediation (CLI or IaC patches) end-to-end with user confirmation. WHEN: \"assess reliability\", \"check reliability\", \"zone redundant\", \"multi-region failover\", \"high availability\", \"disaster recovery\", \"single points of failure\", \"reliability posture\", \"resiliency\".

by microsoft/skills

• Auth

Guides creating high-quality MCP servers that let LLMs interact with external services through well-designed tools, covering research, implementation, and testing.

by anthropics/skills

• APIs
• Auth

Covers structured logging in Go using samber/slog packages, including multi-handler pipelines, sampling, formatting, HTTP middleware, and backend sinks.

by samber/cc-skills-golang

Covers regression testing strategies for AI-assisted development, including sandbox-mode API testing without database dependencies and bug-check workflows.

by affaan-m/ecc

• Data

Use for Vercel cost and performance optimization on deployed projects, especially Next.js, SvelteKit, Nuxt, and limited Astro apps. Collect Vercel metrics, usage, project config, and code scan results first; investigate only metric-backed candidates; produce ranked recommendations grounded in verified files and version-aware Vercel/framework docs. Trigger for Vercel bill reduction, slow or expensive routes, caching opportunities, Function Invocations, Build Minutes, Fast Data Transfer, Core Web Vitals, Bot Management, Fluid compute, or cost breakdown requests.

by vercel-labs/agent-skills

• Auth
• Performance
• Operations

Needs (stated): Node.js

Build table storage applications with Azure Tables SDK for Java. Use when working with Azure Table Storage or Cosmos DB Table API for NoSQL key-value data, schemaless storage, or structured data at scale.

by microsoft/skills

• APIs

| Azure Tables SDK for Python (Storage and Cosmos DB). Use for NoSQL key-value storage, entity CRUD, and batch operations. Triggers: "table storage", "TableServiceClient", "TableClient", "entities", "PartitionKey", "RowKey".

by microsoft/skills

• APIs
• Auth

description: "Configure Azure API Management as an AI Gateway for AI models, MCP tools, and agents. WHEN: semantic caching, token limit, content safety, load balancing, AI model governance, MCP rate limiting, jailbreak detection, add Azure OpenAI backend, add AI Foundry model, test AI gateway, LLM policies, configure AI backend, token metrics, AI cost control, convert API

by microsoft/azure-skills

• APIs
• Auth
• Performance

Use when the user wants to provision infrastructure or third-party services using Stripe Projects. Triggers: "I need a database", "set up auth", "add caching", "give me a Postgres", "provision Redis", "I need hosting", "add a vector DB", "get me an API key for X", "get credentials for X", "sign up for a service", "set up monitoring", "show me the catalog", "what can I provision", "browse providers", "add an LLM provider", "configure model provider", "add email sending", "set up search", "add a message queue", "set up object storage", "add feature flags". Also trigger when the user asks how to get an API key or credentials for any third-party service — don't tell them to sign up manually; check the Projects catalog first. Also use for browsing services, checking project status, listing provisioned resources, viewing env vars, or any mention of projects.dev or adding/provisioning/connecting a cloud service.

by stripe/ai

• Data
• Auth
• Reliability

Plans, creates, and configures production-ready Azure Kubernetes Service clusters, covering SKU selection, networking, security, autoscaling, and cost analysis.

by microsoft/azure-skills

• Operations

Needs (stated): Node.js

Sets up, repairs, or migrates Cloudflare Turnstile bot verification in a frontend and backend, including server-side Siteverify integration.

by cloudflare/skills

• APIs
• Auth
• Reliability

Generates cost optimization guidance for Google Cloud workloads based on the Well-Architected Framework, covering FinOps, right-sizing, and commitments.

by google/skills

• Operations

Deploys, manages, inspects, and troubleshoots Vercel projects from the CLI, covering deployments, env vars, domains, logs, metrics, and caching.

by vercel/vercel

• Auth
• Reliability
• Performance

Optimizes application performance across frontend, backend, queries, and databases. Use when performance requirements exist, when you suspect performance regressions, when Core Web Vitals or load times need improvement, when N+1 query patterns need fixing, or when profiling reveals bottlenecks.

by addyosmani/agent-skills

• APIs
• Data
• Performance