Rei-skills pydantic-models-py

Create Pydantic models following the multi-model pattern with Base, Create, Update, Response, and InDB variants. Use when defining API request/response schemas, database models, or data validation ...

install

source · Clone the upstream repo

git clone https://github.com/rootcastleco/rei-skills

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/rootcastleco/rei-skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/pydantic-models-py" ~/.claude/skills/rootcastleco-rei-skills-pydantic-models-py && rm -rf "$T"

manifest: skills/pydantic-models-py/SKILL.md

source content

Pydantic Models

Create Pydantic models following the multi-model pattern for clean API contracts.

Quick Start

Copy the template from assets/template.py and replace placeholders:

```
{{ResourceName}}
```
→ PascalCase name (e.g.,
```
Project
```
)
```
{{resource_name}}
```
→ snake_case name (e.g.,
```
project
```
)

Multi-Model Pattern

Model	Purpose
`Base`	Common fields shared across models
`Create`	Request body for creation (required fields)
`Update`	Request body for updates (all optional)
`Response`	API response with all fields
`InDB`	Database document with `doc_type`

camelCase Aliases

class MyModel(BaseModel):
    workspace_id: str = Field(..., alias="workspaceId")
    created_at: datetime = Field(..., alias="createdAt")
    
    class Config:
        populate_by_name = True  # Accept both snake_case and camelCase

Optional Update Fields

class MyUpdate(BaseModel):
    """All fields optional for PATCH requests."""
    name: Optional[str] = Field(None, min_length=1)
    description: Optional[str] = None

Database Document

class MyInDB(MyResponse):
    """Adds doc_type for Cosmos DB queries."""
    doc_type: str = "my_resource"

Integration Steps

Create models in
```
src/backend/app/models/
```
Export from
```
src/backend/app/models/__init__.py
```
Add corresponding TypeScript types

When to Use

This skill is applicable to execute the workflow or actions described in the overview.

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