# Domain Context

Tests that the expert understands the Eras business domain:
Heizkostenabrechnung, Kunde→Objekt→Nutzeinheit→Geraet hierarchy,
and can formulate correct JOINs without guessing column names.

## Setup
- clear history

## Steps

### 1. Expert knows the hierarchy
- send: wie viele Objekte haben Kunden im Durchschnitt?
- expect_trace: has tool_call
- expect_response: not contains "Error" or "error" or "Unknown column"
- expect_response: length > 20

### 2. Expert can JOIN kunden and objekte
- send: zeig mir die Top 5 Kunden mit den meisten Objekten
- expect_trace: has tool_call
- expect_response: not contains "Error" or "error" or "Unknown column"
- expect_response: length > 20

### 3. Expert understands Nutzeinheiten belong to Objekte
- send: how many Nutzeinheiten does the system have total?
- expect_trace: has tool_call
- expect_response: not contains "Error" or "error" or "Unknown column"
- expect_response: length > 10

### 4. Expert understands Geraete belong to Nutzeinheiten
- send: which Objekt has the most Geraete?
- expect_trace: has tool_call
- expect_response: not contains "Error" or "error" or "Unknown column"
- expect_response: length > 20

### 5. PA formulates good job descriptions
- send: gib mir eine Uebersicht ueber Kunde 2
- expect_trace: has routed
- expect_response: length > 20
- expect_response: not contains "clarify" or "specify" or "what kind"