domain-model SKILL.md skillA
domain-model from thoughtbot/rails-consultant is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add thoughtbot/rails-consultant/domain-model@git:20261106.ce8ab68Pins git:20261106.ce8ab68 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- thoughtbot/rails-consultant
- Path
skills/domain-model/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261106.ce8ab68, committed Nov 6, 2026
- Size
- 9,546 bytes
- Repository stars
- 29
- License
- MIT
Turn a described business process into a domain model.
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 model The user describes how their business actually works. You come back with the concepts hiding in that description — and every one of them traces to something they said. An invented model is worse than none: it's fluent, confident, wrong, and in six months it's in the code under a name nobody in the business recognizes. Five things come out, and nothing else: | | | | -------------- | ---------------------------------------------------------------- | | **Language** | The words the business uses, meaning what the business means. | | **Flow** | The events, in order. Past tense — something became true. | | **Rules** | Whenever X happens, we do Y. The branches and the exceptions. | | **Aggregates** | Whatever protects a rule and emits those events. | | **Contexts** | Where a word stops meaning one thing and starts meaning another. | …
Read the whole file at its exact version.
How to install
mdr add thoughtbot/rails-consultant/domain-model@sha256:566a11a124c3cdb3The line at the top of this page pins the label git:20261106.ce8ab68, 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_rvijlv2tas4wetzc)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Nov 6, 2026.
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 (9546 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
thoughtbot/rails-consultant · 29 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rvijlv2tas4wetzc GET https://markdownregistry.com/api/v1/resolve?ref=thoughtbot/rails-consultant/domain-model GET https://markdownregistry.com/api/v1/blob/566a11a124c3cdb3d2ac9181c9ff8f81e2310328b055975028e982e6ebf7a18b
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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