orbyn-backend-design SKILL.md skillA

orbyn-backend-design from kinqsradio/orbyn-fullstack-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add kinqsradio/orbyn-fullstack-skills/orbyn-backend-design@git:20261101.8be107b

Pins git:20261101.8be107b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
kinqsradio/orbyn-fullstack-skills
Path
skills/orbyn-backend-design/SKILL.md
Versions recorded
5
Latest version
git:20261101.8be107b, committed Nov 1, 2026
First version recorded
Oct 25, 2026
Size
5,053 bytes
Repository stars
4
License
MIT

Design and implement API/service behavior across validation, authorization, persistence, concurrency and client errors using the consuming project's stack. Use architect first for unsettled ownership; use orbyn-data-migration for stored-format changes.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Backend contracts that reach the client

Start from the consuming project's instructions and actual API, transport and
domain owners. Use [how](../how/SKILL.md) to trace the existing request, and
[architect](../architect/SKILL.md) when ownership or lifecycle is undecided.
Use the project's own stack: do not introduce Fastify, PostgreSQL, Zod or any other
Orbyn stack component merely because it appears in an example.

## Method

1. **State the contract:** the caller's input, allowed identity/scope, successful result and expected domain failures.
2. **Identify the authority reads:** which reads establish authority/freshness, and which write or external effect must preserve them. Check access to the referenced tenant resource; a parsed ID and a signed-in session do not prove it.
3. **Validate at the trust boundary.** Place parsing there and reuse the owning schema inside the service. Express failures in the owning contract, and do not scatter defensive checks over already valid internal values.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add kinqsradio/orbyn-fullstack-skills/orbyn-backend-design@sha256:1f49d9fa4429ca28

The line at the top of this page pins the label git:20261101.8be107b, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ottkgsfkpt6efyky.svg)](https://markdownregistry.com/a/art_ottkgsfkpt6efyky)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Oct 25, 2026 and Nov 1, 2026, about one every 2 days.

versioncommittedcommitsizeaudit
git:20261101.8be107b latest2026-11-01 8be107b 5,053 BA view · diff
git:20261028.6071f242026-10-28 6071f24 5,123 BA view · diff
git:20261026.b67f9d52026-10-26 b67f9d5 4,929 BA view · diff
git:20261026.5ac96382026-10-26 5ac9638 4,629 BA view · diff
git:20261025.251cd2e2026-10-25 251cd2e 4,238 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (5053 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

kinqsradio/orbyn-fullstack-skills · 4 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ottkgsfkpt6efyky
GET https://markdownregistry.com/api/v1/resolve?ref=kinqsradio/orbyn-fullstack-skills/orbyn-backend-design
GET https://markdownregistry.com/api/v1/blob/1f49d9fa4429ca28ffc2edbe2c06beda0458f6ebf1b603d8f75edcfe6d2eaadb

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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