addyosmani/agent-skills · skills/api-and-interface-design/SKILL.md

api-and-interface-design skillA

api-and-interface-design is agent-read markdown (skill) from addyosmani/agent-skills: Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or GraphQL endpoints, defining type contracts between modules, or establishing boundaries between frontend and backend..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add addyosmani/agent-skills/api-and-interface-design@git:20260813.ce89b03
Exact content
mdr add addyosmani/agent-skills/api-and-interface-design@sha256:5dafd0c44a3aabf1

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_bqep7hipv2rjthjn.svg)](https://markdownregistry.com/a/art_bqep7hipv2rjthjn)

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Versions

versioncommittedcommitsizeaudit
git:20260813.ce89b03 latest2026-08-13 ce89b03 14,884 BA view · diff
git:20260331.fea75b12026-03-31 fea75b1 10,307 BA view · diff
git:20260331.702a8942026-03-31 702a894 10,267 BA view · diff
git:20260328.8739c152026-03-28 8739c15 10,272 BA view · diff
git:20260328.4d0b8322026-03-28 4d0b832 8,822 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (14884 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

addyosmani/agent-skills · 95,786 stars · license MIT · pushed 2026-09-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_bqep7hipv2rjthjn
GET https://markdownregistry.com/api/v1/resolve?ref=addyosmani/agent-skills/api-and-interface-design
GET https://markdownregistry.com/api/v1/blob/5dafd0c44a3aabf11cae5bcb34f6fcc24dfa5c01ba6e0d3176bce997f4d68bc8

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.