---name: fbadescription: FastAPI Best Architecture (fba) project development guide. Use when working in fba projects to design, implement, review, or document APIs, Schema, Service, CRUD, Model, configuration, response contracts, pagination, cache, Celery, i18n, coding style, plugin development, plugin README files, plugin sharing, plugin publishing, or plugin marketplace updates.---

FastAPI Best Architecture

Official documentation: https://fastapi-practices.github.io/fastapi_best_architecture_docs/

Use this skill to follow fba architecture and plugin conventions. Read only the references needed for the task. For cross-layer feature work, read references/development.md first, then load the layer-specific references.

Core Architecture

Project adopts a layered backend architecture centered on API, Service, and CRUD, with Schema and Model as explicit data contracts:

Layer	Responsibility
API	Route processing, parameter validation, and response return
Schema	Data transfer objects, request/response data structure definitions
Service	Business logic, data processing, exception handling
CRUD	Database operations (inherits CRUDPlus)
Model	ORM models (inherits Base)

Development Workflow

1. Define database models (model)
2. Define data validation models (schema)
3. Define routes (router)
4. Write business logic (service)
5. Write database operations (crud)

Reference Selection

Task	Read
Feature/module development flow, Service/CRUD placement, pagination, cache, Celery, i18n, code generation	references/development.md
API routes, dependencies, response patterns, auth, permissions	references/api.md
Pydantic request/response DTOs	references/schema.md
SQLAlchemy models and migrations	references/model.md
CRUD, Service, API, Schema, entity and table prefix naming	references/naming.md
Backend/frontend plugin development and plugin README files	references/plugin.md
Plugin sharing, public repositories, marketplace PRs, submodules, updates	references/plugin-sharing.md
Formatting, comments, docstrings, commit style	references/coding-style.md
Global settings and configuration	references/config.md

Plugin Work

When creating, reviewing, or updating plugins:

1. Read references/plugin.md for plugin type, structure, manifest, configuration, hooks, SQL, and README rules
2. Read references/plugin-sharing.md when the task involves sharing, publishing, updating, marketplace PRs, plugin repositories, or Git submodules
3. Prefer source-code behavior from fastapi-best-architecture when docs and implementation differ
4. Do not perform git add, commit, push, or PR actions unless the user explicitly asks

CLI

Execute fba -h for more details.