Exceeds the Maximum Length Problem

// @error: The inferred type of this node exceeds the maximum length the compiler will serialize.
export const router = {
  // many procedures here
}

Why It Happens

TypeScript enforces this to keep your IDE suggestions fast. It appears when:

1. Your project uses "declaration": true in tsconfig.json.
2. Your project is large or your types are very complex.
3. You export your router as a single, large object.

How to Fix It

1. Disable "declaration": true

Simplest option, though may not be ideal.

2. Define the .output Type for Your Procedures

By specifying .output or your handler's return type, TypeScript can infer the output without parsing the handler. Dramatically improves performance.

Use the type utility for specifying output without validation.

3. Export the Router in Parts

// Server (declaration: true)
export const userRouter = { /** ... */ }
export const planetRouter = { /** ... */ }
export const publicRouter = { /** ... */ }

// Client (declaration: false)
interface Router {
  user: typeof userRouter
  planet: typeof planetRouter
  public: typeof publicRouter
}

export const client: RouterClient<Router> = createORPCClient(link)