API Design Principles Agent Skill

Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers. Use when designing new APIs, reviewing API specifications, or establishing API design standards.

10k tokens

context cost

the whole folder, loaded on every use

files

ships runnable scripts

copies elsewhere

how many repositories repackaged it

505

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI --skill api-design-principles

What comes with it

38 802 bytes besides the instruction

assets/api-design-checklist.md

assets/rest-api-template.py

references/graphql-schema-design.md

references/rest-best-practices.md

sub-skills/implementation-playbook.md

The instruction itself

7 sections, as written by the author

API Design Principles

Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers and stand the test of time.

Use this skill when

Designing new REST or GraphQL APIs
Refactoring existing APIs for better usability
Establishing API design standards for your team
Reviewing API specifications before implementation
Migrating between API paradigms (REST to GraphQL, etc.)
Creating developer-friendly API documentation
Optimizing APIs for specific use cases (mobile, third-party integrations)

Do not use this skill when

You only need implementation guidance for a specific framework
You are doing infrastructure-only work without API contracts
You cannot change or version public interfaces

Instructions

Define consumers, use cases, and constraints.
Choose API style and model resources or types.
Specify errors, versioning, pagination, and auth strategy.
Validate with examples and review for consistency.

Refer to resources/implementation-playbook.md for detailed patterns, checklists, and templates.

Resources

resources/implementation-playbook.md for detailed patterns, checklists, and templates.

🧠 Knowledge Modules (Fractal Skills)

1. implementation-playbook

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How to use it

Copy the folder

Take dokhacgiakhoa/api-design-principles from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.