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ddd-tactical-review SKILL.md skillA

ddd-tactical-review from the-artificer-of-ciphers-llc/skills-from-the-artificer is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add the-artificer-of-ciphers-llc/skills-from-the-artificer/ddd-tactical-review@git:20261025.84f93e5

Pins git:20261025.84f93e5 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: the-artificer-of-ciphers-llc/skills-from-the-artificer
Path: ddd-tactical-review/SKILL.md
Versions recorded: 1
Latest version: git:20261025.84f93e5, committed Oct 25, 2026
Size: 3,944 bytes
Repository stars: 6
License: MIT

Review or design domain-layer code using Eric Evans's Domain-Driven Design (2003) tactical building blocks: entities, value objects, aggregates, repositories, factories, and domain services. Use when asked "should this be an entity or a value object", "where does this invariant live", "what is the aggregate boundary", "is this model anemic", "review my domain model", or when domain code mixes identity, validation, and persistence in one class. Use it even if DDD is not mentioned. For where one…

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

# DDD Tactical Review

Tactical DDD is a set of decisions about how to shape the objects inside one bounded context. Settle the context first (`ddd-strategic-audit`); an aggregate drawn across two models is a symptom of a missing boundary. These are design heuristics from a 2003 book, not laws, so state the trade-off when you deviate.

## The decision, per concept

For each domain concept, ask in order:

1. **Does it have an identity that persists as its attributes change?** Two orders with identical contents are still different orders. Yes: **entity**. Compare by identity, give it a stable id, model its lifecycle.
2. **Is it defined entirely by its attributes, interchangeable when equal?** Money, a date range, an address. Yes: **value object**. Prefer immutability and compare by value; replace instead of mutate. Immutability is the standard default, not an absolute rule.
3. **Is it a cluster that must stay consistent as a unit?** Yes: an **aggregate**, with one **root** entity. Outside code holds references to the root only and changes the cluster through it.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add the-artificer-of-ciphers-llc/skills-from-the-artificer/ddd-tactical-review@sha256:81b6d3e6fe3728b8

The line at the top of this page pins the label git:20261025.84f93e5, 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_ney5lqoqzmbeklbw.svg)](https://markdownregistry.com/a/art_ney5lqoqzmbeklbw)

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

Versions

The registry has recorded 1 version of this file, committed on Oct 25, 2026.

version	committed	commit	size	audit
git:20261025.84f93e5 latest	2026-10-25	84f93e5	3,944 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 (3944 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

the-artificer-of-ciphers-llc/skills-from-the-artificer · 6 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ney5lqoqzmbeklbw
GET https://markdownregistry.com/api/v1/resolve?ref=the-artificer-of-ciphers-llc/skills-from-the-artificer/ddd-tactical-review
GET https://markdownregistry.com/api/v1/blob/81b6d3e6fe3728b876bcd1f44a35cf5796f1a8d3776826d47fe194bffb9dfdc5

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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