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Scaffold archipy domain

Skill SyntaxArc/archipy-plugin/skills/scaffold-archipy-domain

Scaffold a full ArchiPy domain slice (DTOs, errors, repository adapters, logic, service). Use when adding a new domain to an existing ArchiPy app.From its SKILL.md

Install
npx -y skills add SyntaxArc/archipy-plugin --skill scaffold-archipy-domain

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

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SKILL.md

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Scaffold ArchiPy Domain

Before writing files

Ask the user for:

  1. Domain name (e.g. order)
  2. ArchiPy extras to install/use (e.g. redis, postgres, sqlalchemy, fastapi)
  3. Transport: FastAPI (default) or gRPC

Compose — do not fork templates

Apply existing skills in order (reuse their constraints and file layouts):

  1. Models — stubs below, then flesh via using-archipy-models rule
  2. scaffold-archipy-adapter — thin wrapper under repositories/<domain>/adapters/ + <domain>_repository.py
  3. scaffold-archipy-logic — at least one use-case under logics/<domain>/
  4. scaffold-archipy-service — services/<domain>/v1/<domain>_service.py

Install extras as needed: uv add "archipy[<extras>]".

Model stubs (create first)

models/
├── dtos/<domain>/
│   ├── domain/v1/
│   │   ├── <domain>_input_dto.py
│   │   └── <domain>_output_dto.py
│   └── repository/
│       └── <domain>_command_dto.py
├── errors/
│   └── <domain>_errors.py
└── entities/                    # optional
    └── <domain>_entity.py

Example shapes (order → rename):

# models/dtos/order/domain/v1/order_create_input_dto.py
from pydantic import BaseModel, Field


class OrderCreateInputDTO(BaseModel):
    """Domain input crossing the service → logic boundary."""

    customer_id: str = Field(min_length=1)
    sku: str = Field(min_length=1)
    quantity: int = Field(gt=0)

# models/dtos/order/domain/v1/order_create_output_dto.py
from pydantic import BaseModel


class OrderCreateOutputDTO(BaseModel):
    """Domain output returned to the service layer."""

    order_id: str
    status: str

# models/dtos/order/repository/order_create_command_dto.py
from pydantic import BaseModel


class OrderCreateCommandDTO(BaseModel):
    """Repository write command — mapped from domain input inside the logic."""

    customer_id: str
    sku: str
    quantity: int

# models/errors/order_errors.py
from archipy.models.errors import NotFoundError, InvalidArgumentError


class OrderNotFoundError(NotFoundError):
    """Raised when an order cannot be located."""


class OrderInvalidArgumentError(InvalidArgumentError):
    """Raised when order input fails domain validation."""

Naming: *InputDTO / *OutputDTO for domain; *CommandDTO / *QueryDTO for repository. Prefer ArchiPy BaseError hierarchy — adjust base classes to what the installed archipy version exports.

Outcome checklist

  • Domain + repository DTOs with ArchiPy naming (*InputDTO, *CommandDTO, …)
  • Domain error subclassing ArchiPy BaseError hierarchy
  • repositories/<domain>/adapters/ + repository orchestrator
  • One logic with @postgres_sqlalchemy_atomic_decorator when Postgres SQLAlchemy is in play
  • One service v1 (FastAPI router or gRPC servicer)
  • DI notes in configs/containers.py: ports → adapters → repository → logic → service

Constraints

  • Call flow: services → logics → repositories → adapters → ArchiPy.
  • Cross-domain: logics may call other logics; never another domain’s repository.
  • Double quotes, Google-style docstrings, Python 3.14+ typing.
  • Do not invent a top-level app adapters/ package.

Docs

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