GraphQL · API design

Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication, database integration, and API design best practices.

ever-works/ever-works

Designs REST and GraphQL APIs from resource modeling to an OpenAPI 3.1 contract, with versioning, pagination and RFC 7807 error handling.

Jeffallan/claude-skills

REST 및 GraphQL API 설계 원칙 가이드. An agent skill from jh941213/my-cc-harness.

jh941213/my-cc-harness

Guides stable API and interface design. An agent skill from dzhalaevd/Donatello.

dzhalaevd/Donatello

Designs REST and GraphQL APIs including endpoints, error handling, versioning, and documentation.

CloudAI-X/claude-workflow-v2

A skill your agent uses when reviewing a proposed REST or GraphQL API change before merge — checks contract clarity, backwards compatibility, errors, pagination, auth, and naming.

oxbshw/LLM-Agents-Ecosystem-Handbook

Design or review REST and GraphQL API interfaces. An agent skill from agulli/atlas-agents.

agulli/atlas-agents

Checklist for adding, changing, deprecating or removing Saleor GraphQL fields, mutations, enums and webhook event types so the change passes review first time.

saleor/saleor

Guides REST and GraphQL API design, endpoint patterns, request/response schemas, versioning, and API best practices.

CloudAI-X/opencode-workflow

API contract design for REST and GraphQL, covering resource shape, URL and header versioning with deprecation windows, RFC 9457 Problem Details error handling, and OpenAPI specs.

yonatangross/orchestkit

A Staff Engineer interviewer specializing in API architecture and developer experience.

PrepLabsAI/InterviewMentor

Finds OpenAPI, GraphQL, Protobuf and JSON Schema files in a codebase and extracts behavioral claims from them as part of a reverse-engineering workflow.

prime-radiant-inc/greenfield

Designs GraphQL schemas and Apollo Federation graphs, with DataLoader resolvers, subscriptions, query complexity limits and caching.

Jeffallan/claude-skills

Automatically discover API design skills when working with REST APIs, GraphQL schemas, API authentication, OAuth, JWT, rate limiting, API versioning, error handling, or endpoint design.

rand/cc-polymath

A skill your agent uses when designing a new REST or GraphQL API, reviewing an API spec before implementation, setting team API standards, or migrating REST to GraphQL.

coco-research/coco

API design principles and decision-making. An agent skill from xenitV1/Antigravity-Workflows.

xenitV1/Antigravity-Workflows

REST and GraphQL API design patterns, OpenAPI/Swagger specifications, versioning strategies, and authentication patterns.

rsmdt/the-startup

A skill your agent uses when writing a client for someone else's REST or GraphQL API: auth flow choice and token refresh, pagination to exhaustion, retry-with-jitter on transient failures only…

ericrisco/rsc-harness

A skill your agent uses when settling the contract of an API you expose, before implementation: resources/URLs, REST vs GraphQL, versioning, one RFC 9457 error envelope, pagination, idempotency —…

ericrisco/rsc-harness

A skill your agent uses when designing REST or GraphQL APIs, defining endpoints, implementing pagination/filtering, handling API versioning, or establishing API documentation with OpenAPI/Swagger.

MadAppGang/claude-code

Backend development specialist covering API design, database integration, microservices architecture, and modern backend patterns.

modu-ai/moai-adk

Decide whether a system needs a backend-for-frontend, how many, and what each one may own: adoption signals and honest costs, one-experience-one-BFF granularity with frontend-team ownership, the…

citypaul/.dotfiles

REST and GraphQL API design principles, versioning, error handling, and documentation patterns

cosmicstack-labs/mercury-agent-skills

Comprehensive API design patterns covering REST, GraphQL, gRPC, versioning, authentication, and modern API best practices

bobmatnyc/claude-mpm

REST/GraphQL/gRPC API design best practices. An agent skill from majiayu000/spellbook.

majiayu000/spellbook

Dynamic multi-repo and monorepo awareness for Claude Code. An agent skill from alinaqi/maggy.

alinaqi/maggy

Architecture knowledge reference covering API design, security architecture, cloud-native patterns, caching strategies, message queues, and data security.

telagod/code-abyss

Principles and checklists for designing and reviewing REST and GraphQL APIs; use when defining or evaluating API contracts (endpoints/schemas), naming, error models, pagination, versioning, and REST…

aipoch/medical-research-skills

API design: naming, versioning, pagination, idempotency, OpenAPI, error contracts and safe retries.

softspark/ai-toolkit

Design REST/GraphQL APIs with OpenAPI 3.1, error handling, pagination, rate limiting, webhooks, and idempotency.

EliasOulkadi/shokunin

Design and document RESTful and GraphQL APIs with OpenAPI/Swagger specifications, authentication patterns, versioning strategies, and best practices.

aiskillstore/marketplace

Expert API designer for REST, GraphQL, gRPC architectures. An agent skill from curiositech/some_claude_skills.

curiositech/some_claude_skills

Select how services talk: REST, gRPC, GraphQL, WebSocket, SSE, or webhook per hop, sync versus async per flow, service discovery mode, and DNS/edge routing.

HoangNguyen0403/agent-skills-standard

Design and implement backend services and APIs — REST, gRPC, GraphQL, event-driven handlers, transaction boundaries, outbox/inbox delivery, migration coexistence, database access, integration, error…

magnus919/agent-skills

Selects and implements NestJS runtime features, error and API contracts, security, testing, DevOps, performance, and safe scale.

aiskillstore/marketplace

Full pipeline for REST/GraphQL API design, documentation, mocking, and testing.

revfactory/harness-100