jdanigo/hydraia · skills/api-design/SKILL.md

api-design skillA

api-design is agent-read markdown (skill) from jdanigo/hydraia: Use when designing or reviewing an API surface — REST, GraphQL, or gRPC. Contract-first methodology: the contract artifact (OpenAPI 3.1, SDL, proto3) is written and reviewed BEFORE implementation, lives in the repo, and Phase 6 verifies implementation matches it..

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 jdanigo/hydraia/api-design@git:20260703.c5a2b92
Exact content
mdr add jdanigo/hydraia/api-design@sha256:fd11db1d17b4a7ea

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_xtlxvpbt2apz4sqv.svg)](https://markdownregistry.com/a/art_xtlxvpbt2apz4sqv)

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Versions

versioncommittedcommitsizeaudit
git:20260703.c5a2b92 latest2026-07-03 c5a2b92 2,806 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 (2806 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

jdanigo/hydraia · 8 stars · license MIT · pushed 2026-09-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xtlxvpbt2apz4sqv
GET https://markdownregistry.com/api/v1/resolve?ref=jdanigo/hydraia/api-design
GET https://markdownregistry.com/api/v1/blob/fd11db1d17b4a7ea1df796e41fb6e692df9c7d8fbe8d337a776a1ffb94f5b985

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