nw-ddd-tactical SKILL.md skillA
nw-ddd-tactical from nwave-ai/nwave is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nwave-ai/nwave/nw-ddd-tactical@git:20260406.b65a761Pins git:20260406.b65a761 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nwave-ai/nwave
- Path
nWave/skills/nw-ddd-tactical/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260406.b65a761, committed Apr 6, 2026
- Size
- 7,123 bytes
- Repository stars
- 633
- License
- MIT
Tactical DDD — aggregate design rules, entities, value objects, domain events, repositories, domain services, and anti-pattern detection.
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
# Tactical DDD Implementation patterns within a bounded context. Tactical DDD answers: "How do we structure the domain model?" ## Aggregates An aggregate is a consistency boundary -- a cluster of domain objects that must be transactionally consistent. ### Vernon's Four Design Rules 1. **Model true invariants in consistency boundaries**: Only include elements that MUST be consistent within the same transaction. If two entities don't share an invariant, they belong in separate aggregates. 2. **Design small aggregates**: ~70% of aggregates contain only a root entity with value-typed properties. Large aggregates create concurrency contention, scalability failures, and memory pressure. 3. **Reference other aggregates by identity**: Use `ProductId` not `Product`. Direct object references create accidental cross-aggregate transactions and prevent independent scaling. 4. **Use eventual consistency outside the boundary**: Domain events communicate across aggregates. One transaction = one aggregate. If you need to update two aggregates "atomically," reconsider your boundaries. ### Aggregate Design Checklist - [ ] Contains only elements sharing true invariants …
Read the whole file at its exact version.
How to install
mdr add nwave-ai/nwave/nw-ddd-tactical@sha256:7eb1a4b35848d100The line at the top of this page pins the label git:20260406.b65a761, 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_ukm5etwfuhxklk7f)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Apr 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 (7123 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
nwave-ai/nwave · 633 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ukm5etwfuhxklk7f GET https://markdownregistry.com/api/v1/resolve?ref=nwave-ai/nwave/nw-ddd-tactical GET https://markdownregistry.com/api/v1/blob/7eb1a4b35848d10006f431a118ba21ced9b77d7023f3f725a1a723d141eec338
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.