domain-driven-design SKILL.md skillA
domain-driven-design from amey-thakur/ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add amey-thakur/ai-skills/domain-driven-design@git:20260728.fac4544Pins git:20260728.fac4544 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- amey-thakur/ai-skills
- Path
skills/architecture/domain-driven-design/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260728.fac4544, committed Jul 28, 2026
- First version recorded
- Jul 20, 2026
- Size
- 3,824 bytes
- Repository stars
- 14
- License
- MIT
Apply DDD pragmatically: bounded contexts, ubiquitous language, and aggregates sized to invariants. Use when modeling a complex domain or when code and business people describe the same thing differently.
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-driven design
DDD's durable core is small: name things the way the business names
them, draw boundaries where the language changes meaning, and cluster
data around the rules that must stay consistent. The tactical
machinery is optional; the strategic modeling is where the value is.
## Method
1. **Build a ubiquitous language, and use it everywhere.**
The terms the domain experts use become the terms in
code, APIs, and conversation: no translation layer
between "what the business calls it" and "what the class
is named" (see naming-things). When a developer says
"record" and the expert says "policy" for the same
thing, bugs breed in the gap; close it by adopting the
expert's word in the code.
2. **Find bounded contexts where the language shifts.** The
same word means different things in different parts of
the business ("customer" in sales vs support vs
billing): each coherent meaning is a bounded context
with its own model, and the boundaries between contexts
are exactly where you draw module or service lines (see
microservices-boundaries, monolith-first). One universal
model for the whole enterprise is the anti-pattern:
…Read the whole file at its exact version.
How to install
mdr add amey-thakur/ai-skills/domain-driven-design@sha256:d24a316a88a0c913The line at the top of this page pins the label git:20260728.fac4544, 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_bsoefgmjkxlvjoxa)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 20, 2026 and Jul 28, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260728.fac4544 latest | 2026-07-28 | fac4544 | 3,824 B | A | view · diff |
| git:20260720.67d6135 | 2026-07-20 | 67d6135 | 3,822 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 (3824 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
amey-thakur/ai-skills · 14 stars · license MIT · pushed 2026-09-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bsoefgmjkxlvjoxa GET https://markdownregistry.com/api/v1/resolve?ref=amey-thakur/ai-skills/domain-driven-design GET https://markdownregistry.com/api/v1/blob/d24a316a88a0c9132beecb3443c543df35b3461158a008a98fb6309dbe6f70b0
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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