system-architecture-document SKILL.md skillA
system-architecture-document from fattain-naime/engineering-docs is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add fattain-naime/engineering-docs/system-architecture-document@git:20260717.2f82174Pins git:20260717.2f82174 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- fattain-naime/engineering-docs
- Path
skills/system-architecture-document/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260717.2f82174, committed Jul 17, 2026
- First version recorded
- Jul 8, 2026
- Size
- 16,531 bytes
- Repository stars
- 6
- License
- MIT
Create a System Architecture Document (SAD) with C4 model diagrams, 4+1 view decomposition, integration maps, NFR constraints, and an Architecture Decision Record log. Use when documenting how an entire system or major subsystem is structured.
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
## Purpose Produce a System Architecture Document (SAD) that gives every stakeholder - from non-technical product leadership to infrastructure engineers - the right level of detail about the system's structure. This document answers: - **What** components make up the system? - **How** do they communicate? - **Why** was the architecture designed this way? - **Where** does data flow and where are the trust boundaries? - **What** are the non-functional constraints the architecture must satisfy? ## Input **Works best with:** The name of the system or subsystem being documented. **Also valuable:** Existing diagrams, technology stack decisions, known integration points, existing ADRs, NFR targets. **Example invocation:** `Create a system architecture document for PayFlow, a multi-brand payment gateway with a PHP 8.3 backend, MySQL database, custom plugin system, and white-label domain routing.` ## Key Concepts ### C4 Model (Simon Brown) The C4 Model provides a hierarchical, developer-friendly approach to architecture documentation - like a "Google Maps" with multiple zoom levels: …
Read the whole file at its exact version.
How to install
mdr add fattain-naime/engineering-docs/system-architecture-document@sha256:5b32b461bdf29600The line at the top of this page pins the label git:20260717.2f82174, 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.
[](https://markdownregistry.com/a/art_cb6wyyol3ipde7i6)
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Versions
The registry has recorded 5 versions of this file, between Jul 8, 2026 and Jul 17, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260717.2f82174 latest | 2026-07-17 | 2f82174 | 16,531 B | A | view · diff |
| git:20260712.59c5852 | 2026-07-12 | 59c5852 | 6,038 B | A | view · diff |
| git:20260712.7e3d1bb | 2026-07-12 | 7e3d1bb | 6,132 B | A | view · diff |
| git:20260709.03fe43c | 2026-07-09 | 03fe43c | 5,919 B | A | view · diff |
| git:20260708.a309efd | 2026-07-08 | a309efd | 4,943 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (16531 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
fattain-naime/engineering-docs · 6 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cb6wyyol3ipde7i6 GET https://markdownregistry.com/api/v1/resolve?ref=fattain-naime/engineering-docs/system-architecture-document GET https://markdownregistry.com/api/v1/blob/5b32b461bdf29600123e13200d8b4342f3b9e4d37fdca389d23665fdbb1eb21b
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