skills.rest
GoBeromsu
GoBeromsuCOMMUNITY
Explore all skills by this author →
WebsiteGitHub

api-and-interface-design

Define stable REST/GraphQL interfaces and type contracts with contract-first design.

2|Updated Mar 6, 2026
Search Tags:#design#api#interfaces#validation#error-handling#contracts
One-click install
npx skills add https://github.com/GoBeromsu/obsidian-workspace --skill api-and-interface-design-goberomsu
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: api-and-interface-design
Source: https://github.com/GoBeromsu/obsidian-workspace/tree/main/.claude/skills/api-and-interface-design
Command: npx skills add https://github.com/GoBeromsu/obsidian-workspace --skill api-and-interface-design-goberomsu

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Complex systems suffer from unclear boundaries between components, inconsistent interfaces, and brittle integration points. This Skill helps teams define stable, well-documented interfaces that reduce miscommunication and coupling, enabling safer evolution of services.

Core Features & Use Cases

  • Contract-first design: Define API surfaces and type contracts before implementing them to set clear expectations.
  • Consistent error handling: Establish uniform error semantics across REST/GraphQL endpoints to simplify client integration.
  • Evolution safety: Provide additive changes to APIs and interfaces to preserve backward compatibility and reduce migrations.
  • Cross-team collaboration: Improve handoffs between frontend, backend, and platform teams by codifying boundaries and expectations.
  • REST/GraphQL guidance: Apply standardized patterns for resource design, pagination, and validation to prevent abuse.

Quick Start

Draft a minimal contract for a new service and review it with your team.

Frequently Asked Questions about api-and-interface-design

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I design stable API interfaces that do not break backward compatibility?▼

Design stable API interfaces using a contract-first approach and additive changes. By defining type contracts and applying additive modifications, you preserve backward compatibility and reduce forced migrations across REST or GraphQL endpoints.

What is contract-first API design and when should I use it?▼

Contract-first API design defines API surfaces and type contracts before implementation. Use it to set clear expectations between frontend and backend teams, reducing miscommunication and brittle integration points in complex systems.

How do I standardize error handling across REST and GraphQL endpoints?▼

Standardize error handling by establishing uniform error semantics across REST and GraphQL endpoints. This simplifies client integration and prevents abuse by applying consistent validation and error response patterns.

Can I use this approach to define module boundaries between cross-functional teams?▼

Yes, this approach defines clear module boundaries and type contracts between teams. Codifying these boundaries improves handoffs between frontend, backend, and platform teams by setting strict expectations for service interactions.

What is the best way to prevent API misuse through validation and pagination?▼

Prevent API misuse by applying standardized patterns for resource design, pagination, and validation. This enforces strict contracts and consistent error semantics, protecting REST and GraphQL endpoints from abusive queries.

Why do my service integrations break when evolving API endpoints?▼

Service integrations break when API evolution lacks additive changes and clear contracts. Defining stable interfaces with consistent error semantics and backward-compatible additive changes prevents brittle integration points.

Related Skills

Explore More Software Engineering Skills→
luanrodriguesluanrodrigues
2

bee:pre-dev-api-design

Define protocol-agnostic API contracts and component interfaces with organizational standards.

Community
Advanced
Dokkabei97Dokkabei97
2

api-first-design

Design API contracts with OpenAPI and GraphQL schemas.

Community
Intermediate
heaptracetechnologyheaptracetechnology
13

contract-test

Automate API contract testing with schema validation and OpenAPI checks.

Community
Advanced
vikingokftvikingokft

stitch::extract-design-md

Extract a Stitch-compatible DESIGN.md from frontend source code.

Official
Intermediate