design-architecture SKILL.md skillA

design-architecture from etr/groundwork is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add etr/groundwork/design-architecture@git:20260624.e533827

Pins git:20260624.e533827 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
etr/groundwork
Path
skills/design-architecture/SKILL.md
Versions recorded
3
Latest version
git:20260624.e533827, committed Jun 24, 2026
First version recorded
Jun 22, 2026
Size
15,051 bytes
Repository stars
44
License
MIT

This skill should be used when the user asks to design system architecture, make architectural decisions, or translate PRD into technical design.

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

# Architecture Design Skill

Interactive workflow for translating product requirements into architecture through iterative decision-making.

## File Locations

- **Input:** `{{specs_dir}}/product_specs.md` (PRD with EARS requirements)
- **Output:** `{{specs_dir}}/architecture.md` (architecture document with decisions)

## Workflow Overview

1. **Load Context** - Read PRD and understand requirements
2. **Identify Decisions** - List architectural decisions to make
3. **Iterate Decisions** - For each decision: present options → discuss → decide
4. **Document** - Write architecture with full decision records

## Design Principles

Anchor decisions on the named principles in `${CLAUDE_PLUGIN_ROOT}/references/engineering-principles.md` — favor **deep modules** (simple interface, substantial functionality), minimize the surface **Hyrum's Law** will freeze into a contract, and **design it twice** before committing to a module boundary. When a decision passes the decision-record gate (in the principles file), record it using the Decision Record Format (ADR-lite) below. Sharpen the shared vocabulary with [[domain-modeling]].

## Pre-flight: Model Recommendation
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add etr/groundwork/design-architecture@sha256:32af6bc6f8c801f6

The line at the top of this page pins the label git:20260624.e533827, 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_jor2f3arpcna5ary.svg)](https://markdownregistry.com/a/art_jor2f3arpcna5ary)

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

Versions

The registry has recorded 3 versions of this file, between Jun 22, 2026 and Jun 24, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20260624.e533827 latest2026-06-24 e533827 15,051 BA view · diff
git:20260622.36090642026-06-22 3609064 14,911 BA view · diff
git:20260622.e1424762026-06-22 e142476 13,454 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 (15051 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

etr/groundwork · 44 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jor2f3arpcna5ary
GET https://markdownregistry.com/api/v1/resolve?ref=etr/groundwork/design-architecture
GET https://markdownregistry.com/api/v1/blob/32af6bc6f8c801f692eb4d56e84d93e193b293288e5e176873aa498e1b3d7f87

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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Every file in etr/groundwork

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