Building with Medusa

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name: building-with-medusa
description: Load automatically when planning, researching, or implementing ANY Medusa backend features (custom modules, API routes, workflows, data models, module links, business logic). REQUIRED for all Medusa backend work in ALL modes (planning, implementation, exploration). Contains architectural patterns, best practices, and critical rules that MCP servers don't provide.
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# Medusa Backend Development

Comprehensive backend development guide for Medusa applications. Contains patterns across 6 categories covering architecture, type safety, business logic placement, and common pitfalls.

## When to Apply

**Load this skill for ANY backend development task, including:**
- Creating or modifying custom modules and data models
- Implementing workflows for mutations
- Building API routes (store or admin)
- Defining module links between entities
- Writing business logic or validation
- Querying data across modules
- Implementing authentication/authorization

**Also load these skills when:**
- **building-admin-dashboard-customizations:** Building admin UI (widgets, pages, forms)
- **building-storefronts:** Calling backend API routes from storefronts (SDK integration)

## CRITICAL: Load Reference Files When Needed… install to load the full skill