In this repository

Scope: Backend API in backend/. Apply CQRS to backend/app/services/, backend/app/repositories/, and backend/app/api/v1/endpoints/. See .cursor/rules/cqrs.md for the canonical rule.
Layers: Endpoints → services → repositories (unchanged). Within that, use command service/repo for writes and query service/repo for reads. Dependencies in backend/app/api/v1/deps.py must expose separate command and query factories where CQRS applies.
After edits run make format and make lint from repo root. Full context: .cursor/skills/README.md and .cursor/rules/project.md.

CQRS pattern (team standard)

Use this skill when implementing or refactoring features that read or write data so the codebase stays aligned with CQRS and ready for scaling.

Adding new API endpoints that create, update, delete, or read data
Adding new business logic or data access (new service methods, new repository methods)
Refactoring existing domains (e.g. data processing records, task logs) to separate read and write paths
Deciding where to put a new method (command vs query service/repository)