domain-modeling SKILL.md skillA

domain-modeling from mathews-tom/armory is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add mathews-tom/armory/domain-modeling@v1.0.1

Pins v1.0.1 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
mathews-tom/armory
Path
skills/domain-modeling/SKILL.md
Versions recorded
2
Latest version
v1.0.1, committed Oct 26, 2026
First version recorded
Oct 19, 2026
Size
7,894 bytes
Repository stars
339
License
MIT

Use when domain terms or entity relationships are ambiguous, existing definitions conflict with a concrete business scenario, or code contradicts an agreed domain model. Not for reading an unchanged glossary, scaffolding generic project context, implementing a fix, or writing an ADR.

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

Challenge the model with the user, not just its wording. Capture agreed project-specific language as it crystallizes; keep disagreement visible instead of turning a plausible interpretation into fact.

## Collaboration contract

- Bound the session to the user's named business question, terms and contexts. Establish the desired outcome (for example, distinguish cancellation from refund for an ordering change); ask for a boundary only when it is missing. Adjacent questions may be deferred explicitly rather than expanding the session.
- Use repository evidence for what can be inspected. Ask the user or domain owner for business intent that the repository cannot settle. Present one material ambiguity and a concrete discriminating scenario at a time; offer precise alternatives without presuming consent.
- Read context and relevant code; edit only agreed domain entries and necessary lookup pointers when authorized. This skill grants no implementation, migration, tracker, installation or ADR-writing authority. A read-only session returns exact proposed changes instead.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add mathews-tom/armory/domain-modeling@sha256:dcc5c44387da5ced

The line at the top of this page pins the label v1.0.1, 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_2owemqfj3bgysyl7.svg)](https://markdownregistry.com/a/art_2owemqfj3bgysyl7)

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

Versions

The registry has recorded 2 versions of this file, between Oct 19, 2026 and Oct 26, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
v1.0.1 latest2026-10-26 688c655 7,894 BA view · diff
v1.0.02026-10-19 74120b7 7,856 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 (7894 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

mathews-tom/armory · 339 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2owemqfj3bgysyl7
GET https://markdownregistry.com/api/v1/resolve?ref=mathews-tom/armory/domain-modeling
GET https://markdownregistry.com/api/v1/blob/dcc5c44387da5cedbcbcc2dab316d706082dbc45833100cd11a2a79a3c921472

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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