Best API design skills, page 2

Use BEFORE adding any new tool, parameter, or endpoint to the Apple Mail MCP server.

s-morgan-jeffries/apple-mail-fast-mcp

Generate comprehensive, accurate API documentation from source code. Use when creating or updating API documentation, generating OpenAPI specs, or…

luongnv89/claude-howto

Design tools, scripts, and CLIs that an agent will call, so the interface teaches its own use instead of a wall of prose and examples.

Neeeophytee/finding-unknowns-skills

A skill your agent uses when a task adds or changes an HTTP endpoint, its request/response shape, status codes, auth or error format - the request matrix, curl templates and what counts as a…

makifbaysal/tasktrooper

Review AI-generated or human-written code changes with fallow's graph-grounded review brief.

fallow-rs/fallow-skills

Comprehensive Rust coding guidelines with 179 rules across 14 categories.

noh-rs/nohrs

当用户的任务涉及 NutUI React（@nutui/nutui-react）时使用 —— 编写 NutUI React 组件、调试 NutUI 问题，或查询 NutUI 组件的 API/属性/文档/示例/设计变量（Design Token）。触发场景：与 NutUI 相关的代码、从 '@nutui/nutui-react' 导入，或明确的 NutUI 相关提问。NutUI React…

jdf2e/nutui-react

Guide for designing and documenting RESTful APIs. An agent skill from microsoft/haste.

microsoft/haste

A skill your agent uses when the user wants to build, create, or develop anything — websites, apps, APIs, services, platforms.

nagisanzenin/production-grade

Consumer-driven contract testing for microservices using Pact, schema validation, API versioning, and backward compatibility testing.

proffesor-for-testing/agentic-qe

Evaluates system boundaries and tradeoffs and writes architecture recommendations, option comparisons or ADRs, with a Mermaid diagram when structure changes.

first-fluke/oh-my-agent

Guide to designing and building MCP servers: tool, resource and prompt design for agent usability, with TypeScript or Python implementation workflows.

shareAI-lab/Kode-CLI

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

Design or review REST/GraphQL APIs when endpoints or contracts change.

KbWen/agentic-os

A skill your agent uses when changing API/DTO/schema/wire-format contracts, SSE/event payloads, shared protocol packages, or producer/consumer mappings across MahoShojo-Generator runtimes.

RunoreLab/MahoShojo-Generator

How Circuit Breaker moves data between backend and frontend — the NATS internal bus, Redis pub/sub, the WebSocket stream endpoints and their first-message JWT handshake, SSE log/event streams, and…

BlkLeg/CircuitBreaker

API design patterns and conventions for this project. An agent skill from huangjia2019/claude-code-engineering.

huangjia2019/claude-code-engineering

Reviews APIs, configuration schemas and library interfaces for footguns, the designs where the easy path leads to insecure use, using a four-phase analysis.

trailofbits/skills

Create, validate and maintain OpenAPI 3.1 specs for REST APIs, whether designed first or generated from existing code, and use them for docs and client SDKs.

wshobson/agents

A skill your agent uses when doing operator migration or kernel migration for CUDA, Triton, or custom ops in cache-dit; porting kernels from nunchaku, deepcompressor, or other repos; designing…

vipshop/cache-dit

Evidence-based workflow for designing or modernizing a software system: current-state inventory, options, API and schema contracts, migration plans, ADRs and verification.

Light0305/Light-skills

当用户的任务涉及 NutUI React Taro（@nutui/nutui-react-taro）时使用 —— 为小程序 / 跨端（Taro）应用编写 NutUI React Taro 组件、调试 NutUI Taro 问题，或查询 NutUI Taro 组件的 API/属性/文档/示例/设计变量（Design Token）。

jdf2e/nutui-react

Backend API design, database architecture, microservices patterns, and test-driven development.

MoizIbnYousaf/ai-agent-skills

Guidelines for adding or changing routes in the WooCommerce Store API under /wc/store/v1, covering authentication, REST design, schemas and variations.

woocommerce/woocommerce

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

PrepLabsAI/InterviewMentor

When the user needs to design or evaluate system architecture — service boundaries, data models, API contracts, infrastructure topology, database selection, or dependency analysis.

shawnpang/startup-founder-skills

Generate API contracts, shared TypeScript types, and infrastructure resource definitions from Gherkin scenarios and test files.

EmeaAppGbb/spec2cloud

RESTful API design best practices and conventions guide. An agent skill from Leavesfly/Jimi.

Leavesfly/Jimi

Reference patterns for REST APIs, pytest/vitest testing, Docker multi-stage builds, GitHub Actions CI/CD, PostgreSQL, TypeScript generics, Python async, and React Server Components.

Aedelon/claude-code-blueprint

Wires .NET Aspire AppHost resources into explicit environment-variable configuration, keeping application code free of Aspire client packages and service discovery.

Aaronontheweb/dotnet-skills

Maintain DomoDomo’s local FastAPI application, routers, SQLite models, local services, and Python utilities.

darknecrocities/DomoDomo---All-in-one-Tool

A skill your agent uses when adding or changing FastAPI routes, dependencies, or tests in this Python service — keep endpoints typed, validated, and covered by pytest.

johnku2011/boilerplates-with-ai-skills

Conventions for LobeHub's server tRPC routers: file locations, middleware that injects models into ctx, procedure patterns, aggregated detail endpoints and return shapes.

lobehub/lobehub

REST API design with resource naming, pagination, versioning, and OpenAPI spec generation

rohitg00/awesome-claude-code-toolkit

Design systems, services, and architectures. An agent skill from openxlings/xlings.

openxlings/xlings

Authors and maintains the human-facing Agentic Workflows API documentation for the lungo subproject at coffeeAGNTCY/coffeeagents/lungo/docs/workflow-instanceapi.md.

agntcy/coffeeAgntcy

Проектирование и ревью API 1С: публичный программный интерфейс, служебный интерфейс, переопределяемые модули, совместимость, версионирование и миграция потребителей.

IngvarConsulting/unica

Builds a feature implementation plan from an existing feature specification (or equivalent context) through a facilitated team conversation.

testdouble/han

API 契约架构专家 Owner — 当任务涉及 public API、HTTP/SDK/CLI 契约、版本兼容、错误模型、分页过滤、幂等、Schema、类型、迁移或消费者影响时使用；要求先冻结消费者契约，再设计实现与验证。

devcodex-labs/devcodex

Best practices for designing CosmWasm smart contract APIs. An agent skill from axone-protocol/contracts.

axone-protocol/contracts

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

分前端/后端（或多个服务）多端开发的项目，用 CONTRACT.md 指向的唯一机器契约，各端只照它各做各的，防止字段漂移导致集成时白屏。支持单会话多 agent 和多终端各自跑两种模式。只要项目有前后端/多服务、接口字段老对不上、各端联调卡住、某端改了字段忘了通知别人、或前端为渲染一个页面要调一堆接口拼数据，就用这个…

qshanx/docs-governance

Apply private modules with public re-exports (barrel export) pattern for clean API design.

r3bl-org/r3bl-open-core

Reference for designing how an API reports failures: structured error codes, response shapes, client-friendly messages, an error catalog and retry or fallback advice.

revfactory/harness-100

Design RPC-style APIs with layered architecture (Controller → Manager → Repository).

c0x12c/ai-toolkit

Creates new API endpoints, and converts older ones, with the defineRoute() pattern used in cod-server, including auth strategies, scopes and OpenAPI output.

bighadj22/codflow

Reviews a plan for a developer-facing product by profiling developer personas, benchmarking rivals and scoring friction, in expansion, polish or triage mode.

garrytan/gstack

A skill your agent uses when building a feature on reusable database storage or UI, such as CRM, or deciding whether it needs a Macro database entity.

macro-inc/macro