Describe your domain once in YAML. Ship a production backend in any language.

You → agent

You are building an online store with DomainCraft.

1. Draft the domain: Product + Category entities with
   relations, audit + soft_delete features and permissions
   (public read, Admin create/delete, @Owner update).
2. I'll run: domaincraft generate
3. Then I'll write the custom business logic in the hooks.
4. And deploy it: docker compose up

Output only a valid domain.yaml.

Agent → domain.yaml

entities:
  Product:
    features: [audit, soft_delete]
    fields:
      id: uuid [primary]
      title: string [required, min:3]
      price: decimal [required, gte:0]
      categoryId: relation(Category) [optional]
    permissions:
      read: ["*"]
      create: [Admin]
      update: ["@Owner"]
  Category:
    fields:
      id: uuid [primary]
      name: string [required, unique]

$ domaincraft generate

✓ Schema valid (2 entities)
✓ 42 files generated · compiles clean
  src/WebApi/Controllers/ProductsController.g.cs
  src/Application/Generated/ProductService.g.cs
  tests/ApiTests.g.cs

Agent → business hooks

// ProductService.cs — your file, overwrite: false
protected override async Task<HookResult> OnBeforeCreateAsync(
    Product entity, CancellationToken ct)
{
    if (entity.Price <= 0)
        return HookResult.Fail("Price must be positive");
    return HookResult.Success();
}

$ docker compose up

[+] Running 2/2
 ✔ Container postgres   Started
 ✔ Container api        Started
 ✓ API :8080 · Postgres · health ready