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domain-modeling SKILL.md skillA

domain-modeling from saifallah-star/aegis is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add saifallah-star/aegis/domain-modeling@git:20261028.2d7a246

Pins git:20261028.2d7a246 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: saifallah-star/aegis
Path: .agents/skills/domain-modeling/SKILL.md
Versions recorded: 2
Latest version: git:20261028.2d7a246, committed Oct 28, 2026
First version recorded: Oct 16, 2026
Size: 3,643 bytes
Repository stars: 1
License: MIT

Actively build and sharpen a project's ubiquitous domain language, glossary, and Architectural Decision Records (ADRs). Use when establishing project terminology, updating GLOSSARY.md, or recording ADRs.

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

# Domain Modeling

Actively build and sharpen the project's domain model as you design. This is the *active* discipline: challenging terms, inventing edge-case scenarios, and writing the glossary and decisions down the moment they crystallise. (Merely *reading* `GLOSSARY.md` for vocabulary is not this skill: that's a one-line habit any skill can do. This skill is for when you're changing the model, not just consuming it.)

## File structure

Most repos have a single context:

```
/
├── GLOSSARY.md
├── docs/
│   └── adr/
│       ├── 0001-event-sourced-orders.md
│       └── 0002-postgres-for-write-model.md
└── src/
```

If a `GLOSSARY-MAP.md` exists at the root, the repo has multiple contexts. The map points to where each one lives:

```
/
├── GLOSSARY-MAP.md
├── docs/
│   └── adr/                          ← system-wide decisions
├── src/
│   ├── ordering/
│   │   ├── GLOSSARY.md
│   │   └── docs/adr/                 ← context-specific decisions
│   └── billing/
│       ├── GLOSSARY.md
│       └── docs/adr/
```
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add saifallah-star/aegis/domain-modeling@sha256:c71eb0100e8fb390

The line at the top of this page pins the label git:20261028.2d7a246, 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](https://markdownregistry.com/badge/art_ekuivmjn3fgyf5q4.svg)](https://markdownregistry.com/a/art_ekuivmjn3fgyf5q4)

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

Versions

The registry has recorded 2 versions of this file, between Oct 16, 2026 and Oct 28, 2026, about one every 12 days.

version	committed	commit	size	audit
git:20261028.2d7a246 latest	2026-10-28	2d7a246	3,643 B	A	view · diff
git:20261016.0f9b29d	2026-10-16	0f9b29d	3,403 B	A	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 (3643 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

saifallah-star/aegis · 1 stars · license MIT · pushed 2026-10-29 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ekuivmjn3fgyf5q4
GET https://markdownregistry.com/api/v1/resolve?ref=saifallah-star/aegis/domain-modeling
GET https://markdownregistry.com/api/v1/blob/c71eb0100e8fb39013a2d81ce525bd3392fde39294cec1355e92ae0df736e0c1

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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