Cartesian Monorepo Guide

Detailed Guides

Frontend: See Cartesian.Frontend/AGENTS.md for SvelteKit/TypeScript conventions
Backend: See Cartesian.Services/AGENTS.md for .NET/C# conventions

Frontend (Cartesian.Frontend/):
- Build: pnpm build
- Check/Typegen: pnpm check / pnpm typegen
- Lint/Format: pnpm lint / pnpm format (Prettier)
- Note: No dedicated test runner currently configured.
Backend (Cartesian.AppHost/ etc.):
- Build: dotnet build Cartesian.slnx
- Run: dotnet run --project Cartesian.AppHost

Frontend (SvelteKit + Tailwind + Effect.TS):
- Svelte 5: MUST use Runes ($state, $derived, $props, $effect). No legacy syntax.
- Styling: Tailwind CSS with cn() utility. Shadcn UI components.
- Logic: Use Effect.TS for business logic. Avoid classes unless for State Machines.
- Formatting: Prettier default. PascalCase for components, camelCase for props/functions.
- Full Details: See Cartesian.Frontend/AGENTS.md
Backend (.NET):
- Follow idiomatic C# conventions with modern features (records, required, primary constructors)
- IEndpoint pattern for all API endpoints
- Entity/DTO separation with ToDto() methods
- Typed errors inheriting from CartesianError
- Full Details: See Cartesian.Services/AGENTS.md
General:
- Strict Types: No any. Define interfaces.
- Concise: Minimal comments/prose. No emojis.
- Safety: Verify imports/paths. Don't assume libraries exist.