tactical-ddd SKILL.md skillA

tactical-ddd from noesisvision/nasde-toolkit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add noesisvision/nasde-toolkit/tactical-ddd@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
noesisvision/nasde-toolkit
Path
examples/ddd-architectural-challenges/variants/codex-ntcoding-tactical-ddd/agents_skills/tactical-ddd/SKILL.md
Versions recorded
2
Latest version
v1.0.0, committed Jun 9, 2026
First version recorded
Mar 23, 2026
Size
18,040 bytes
Repository stars
14
License
MIT

Design, refactor, analyze, and review code by applying the principles and patterns of tactical domain-driven design. Triggers on: domain modeling, aggregate design, 'entity', 'value object', 'repository', 'bounded context', 'domain event', 'domain service', code touching domain/ directories, rich domain model discussions.

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

<!-- Source: ntcoding/claude-skillz -->
<!-- Snapshot: 2026-03-20 -->

# Tactical DDD

Design, refactor, analyze, and review code by applying the principles and patterns of tactical domain-driven design.

## Principles

1. **Isolate domain logic**
2. **Use rich domain language**
3. **Orchestrate with use cases**
4. **Avoid anemic domain model**
5. **Separate generic concepts**
6. **Make the implicit explicit... like your life depends on it**
7. **Design aggregates around invariants**
8. **Extract immutable value objects liberally**
9. **Repositories are for loading and saving full aggregates**

---

## 1. Isolate domain logic

**What:** Domain logic is not mixed with technical code like HTTP and database transactions.

**Why:** Easier to understand the most important part of the code, easier to validate with domain experts, easier to test and evolve, easier to plan and implement new features.

**Test:** Could a domain expert read the code? Can the code be unit tested without mocks or spinning up databases?

```typescript
// ❌ WRONG - domain polluted with infrastructure
class Delivery {
  async dispatch() {
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add noesisvision/nasde-toolkit/tactical-ddd@sha256:30e21c47460df5dd

The line at the top of this page pins the label v1.0.0, 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_2nzyv4cn2jgku45r.svg)](https://markdownregistry.com/a/art_2nzyv4cn2jgku45r)

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

Versions

The registry has recorded 2 versions of this file, between Mar 23, 2026 and Jun 9, 2026, about one every 78 days. Its first recorded version is graded C and its latest A.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-06-09 9fa2cf4 18,040 BA view · diff
git:20260323.d10ddb52026-03-23 d10ddb5 18,039 BC 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 (18040 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

noesisvision/nasde-toolkit · 14 stars · license MIT · pushed 2026-10-15 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2nzyv4cn2jgku45r
GET https://markdownregistry.com/api/v1/resolve?ref=noesisvision/nasde-toolkit/tactical-ddd
GET https://markdownregistry.com/api/v1/blob/30e21c47460df5dd83f8fe17b1edd793ea9d7d48889e32d3b280c61d49f7d3db

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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