dotnet-domain-modeling — Claude Code skill: overview & setup
Guides pure C# Domain-Driven Design modeling with entities, aggregate roots, value objects, and domain events, keeping business logic isolated from ORM concerns.
npx skills add wshaddix/dotnet-skills --skill dotnet-domain-modeling -a claude-codeWhat dotnet-domain-modeling does
The skill guides tactical Domain-Driven Design modeling in C#. It keeps the domain model isolated. Instructions structure strongly typed entity identifiers, aggregate roots collecting events, and immutable value objects implemented via records.
All state changes pass through aggregate roots. Internal collections hide behind IReadOnlyList instances, while external aggregates connect solely through IDs. This avoids bloated boundaries and unexpected database locks.
Database mappings and API validation remain out of scope. Persistence details and messaging infrastructure belong to dedicated companion skills from the same author.
What it helps with
- structure aggregate roots with encapsulated
IReadOnlyListcollections - build immutable value objects using C# records with self-validating constructors
- register domain events inside aggregate lifecycles
- convert anemic C# models into rich domain entities
Example prompts for the agent
- Design an Order aggregate root with OrderLine items and an OrderSubmitted domain event
- Create CustomerId and Money value objects using C# records with constructor validation
- Implement an Entity<TId> base class with equality operators and ORM constructor support
How to install dotnet-domain-modeling
1Skills CLI (Vercel)
npx skills add wshaddix/dotnet-skills --skill dotnet-domain-modeling -a claude-code2Manually: put the files in place
~/.claude/skills/dotnet-domain-modeling/SKILL.mdCopy the whole skill folder; for one project use .claude/skills/dotnet-domain-modeling/
1Skills CLI (Vercel)
npx skills add wshaddix/dotnet-skills --skill dotnet-domain-modeling -a codex2Manually: put the files in place
.agents/skills/dotnet-domain-modeling/SKILL.mdFor all projects use ~/.agents/skills/
1Skills CLI (Vercel)
npx skills add wshaddix/dotnet-skills --skill dotnet-domain-modeling -a cursor2Manually: put the files in place
.cursor/skills/dotnet-domain-modeling/SKILL.mdCursor also reads .agents/skills/ and .claude/skills/
1GitHub CLI
gh skill install wshaddix/dotnet-skills dotnet-domain-modeling2Manually: put the files in place
.github/skills/dotnet-domain-modeling/SKILL.md1Skills CLI (Vercel)
npx skills add wshaddix/dotnet-skills --skill dotnet-domain-modeling -a gemini-cli2Platform CLI
gemini skills install https://github.com/wshaddix/dotnet-skills --path skills/dotnet-domain-modelingManually: put the files in place
.devin/skills/dotnet-domain-modeling/SKILL.mdThe legacy .windsurf/skills/ path still works
Skills CLI (Vercel)
npx skills add wshaddix/dotnet-skills --skill dotnet-domain-modeling -a opencodeClaude.ai
Zip the folder and upload it in Settings → Capabilities → Skills
Step by step, with commands for each platform: How to install skills in Claude Code: five ways
Questions about dotnet-domain-modeling
How to install dotnet-domain-modeling in Claude Code?
Run npx skills add wshaddix/dotnet-skills --skill dotnet-domain-modeling -a claude-code in your terminal.
What does the dotnet-domain-modeling skill do?
It provides tactical Domain-Driven Design rules for C#, defining aggregate roots, value objects, and domain events without persistence noise.
Does this skill include EF Core mapping configurations?
No, mapping aggregates, migrations, and DbContext lifecycles are explicitly separated into companion skills like dotnet-efcore-architecture.
