domain-modeling SKILL.md skillA
domain-modeling from oribarilan/97 is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add oribarilan/97/domain-modeling@git:20260510.17c5ab8Pins git:20260510.17c5ab8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- oribarilan/97
- Path
skills/domain-modeling/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260510.17c5ab8, committed May 10, 2026
- First version recorded
- May 5, 2026
- Size
- 10,315 bytes
- Repository stars
- 25
- License
- a license file GitHub does not identify
Use when introducing, reviewing, or renaming a top-level type, table, or domain concept; or choosing where state lives (in-memory vs persistent).
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 ## Overview The names and shapes you give the concepts in your code *are* the design. **When you introduce a new domain concept, name it for what it means in the user's world, give it a real type, and decide where its state lives — before you write the methods that act on it.** This is a **rigid** skill. Run the decisions in order. If you can't satisfy one, stop and tell the user what's blocking you. When the concept is exposed across a module/package/service boundary, also invoke `api-design` (overlap on type design and value-vs-identity). ## When to invoke Invoke when you're about to: - Introduce a new top-level type, class, struct, record, or table that represents a *thing in the domain* (Trader, Portfolio, Booking, Invoice, Reservation) - Rename an existing domain concept across files - Add a new database table or persistent collection - Decide whether a chunk of state should live in memory, in a file, in a key-value store, or in a relational database - Replace primitive-typed data (`int`, `string`, `Map<int, Map<int, int>>`) with named domain types - Sketch the data model for a new feature, area, or service …
Read the whole file at its exact version.
How to install
mdr add oribarilan/97/domain-modeling@sha256:c6dbe7bd4b8223b0The line at the top of this page pins the label git:20260510.17c5ab8, 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_u7sxyzfzc2gyixud)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between May 5, 2026 and May 10, 2026, about one every day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260510.17c5ab8 latest | 2026-05-10 | 17c5ab8 | 10,315 B | A | view · diff |
| git:20260508.b5cf0ab | 2026-05-08 | b5cf0ab | 10,511 B | A | view · diff |
| git:20260505.ace11d0 | 2026-05-05 | ace11d0 | 11,216 B | A | view · diff |
| git:20260505.a8c3896 | 2026-05-05 | a8c3896 | 9,376 B | A | view · diff |
| git:20260505.d49a2a0 | 2026-05-05 | d49a2a0 | 9,334 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 (10315 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
oribarilan/97 · 25 stars · license a license file GitHub does not identify · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_u7sxyzfzc2gyixud GET https://markdownregistry.com/api/v1/resolve?ref=oribarilan/97/domain-modeling GET https://markdownregistry.com/api/v1/blob/c6dbe7bd4b8223b02949e54390a4e0c817f7f98b72b7bb6195b04572553f7978
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.