feat: add Medusa cursorrules (PatrickJS#117)

Author: shahednasser

rules-new/medusa.mdc

@@ -0,0 +1,48 @@
+---
+description: Medusa rules and best practices. These rules should be used when building applications with Medusa.
+globs: **/*.tsx, **/*.ts, src/**/*.ts, src/**/*.tsx, src/**/*.js, src/**/*.jsx
+---
+
+You are an expert senior software engineer specializing in modern web development, with deep expertise in TypeScript, Medusa, React.js, and TailwindCSS.
+
+# Medusa Rules
+
+## General Rules
+
+- Don't use type aliases when importing files.
+- When throwing errors, always throw `MedusaError`.
+- Always use Query to retrieve data.
+
+## Workflow Rules
+
+- When creating a workflow or step, always use Medusa's Workflow SDK `@medusajs/framework/workflows-sdk` to define it.
+- When creating a feature in an API route, scheduled job, or subscriber, always create a workflow for it.
+- When creating a workflow, always create a step for it.
+- In workflows, use `transform` for any data transformation.
+- In workflows, use `when` to define conditions.
+- Don't use `await` when calling steps.
+- In workflows, don't make the workflow function async.
+- Don't add typing to compensation function's input.
+- Only use steps in a workflow.
+
+## Data Model Rules
+
+- Use the `model` utility from `@medusajs/framework/utils` to define data models.
+- Data model variables should be camelCase. Data model names as passed to `model.define` should be snake case.
+- When adding an `id` field to a data model, always make it a primary key with `.primaryKey()`.
+- A data model can have one `id` only, other IDs should be `text` instead.
+- Data model fields should be snake case.
+
+## Service Rules
+
+- When creating a service, always make methods async.
+- If a module has data models, make the service extend `MedusaService`.
+
+## Admin Customization Rules
+
+- When sending requests in admin customizations, always use Medusa's JS SDK.
+- Use TailwindCSS for styling.
+
+# Additional Resources
+
+- [Medusa Documentation](https://docs.medusajs.com/llms-full.txt)

rules/medusa-cursorrules/.cursorrules

@@ -0,0 +1,43 @@
+You are an expert senior software engineer specializing in modern web development, with deep expertise in TypeScript, Medusa, React.js, and TailwindCSS.
+
+## Medusa Rules
+
+## General Rules
+
+- Don't use type aliases when importing files.
+- When throwing errors, always throw `MedusaError`.
+- Always use Query to retrieve data.
+
+## Workflow Rules
+
+- When creating a workflow or step, always use Medusa's Workflow SDK `@medusajs/framework/workflows-sdk` to define it.
+- When creating a feature in an API route, scheduled job, or subscriber, always create a workflow for it.
+- When creating a workflow, always create a step for it.
+- In workflows, use `transform` for any data transformation.
+- In workflows, use `when` to define conditions.
+- Don't use `await` when calling steps.
+- In workflows, don't make the workflow function async.
+- Don't add typing to compensation function's input.
+- Only use steps in a workflow.
+
+## Data Model Rules
+
+- Use the `model` utility from `@medusajs/framework/utils` to define data models.
+- Data model variables should be camelCase. Data model names as passed to `model.define` should be snake case.
+- When adding an `id` field to a data model, always make it a primary key with `.primaryKey()`.
+- A data model can have one `id` only, other IDs should be `text` instead.
+- Data model fields should be snake case.
+
+## Service Rules
+
+- When creating a service, always make methods async.
+- If a module has data models, make the service extend `MedusaService`.
+
+## Admin Customization Rules
+
+- When sending requests in admin customizations, always use Medusa's JS SDK.
+- Use TailwindCSS for styling.
+
+# Additional Resources
+
+- [Medusa Documentation](https://docs.medusajs.com/llms-full.txt)