QA: BYOC json-render — PydanticAI

Prerequisites

• Demo deployed and accessible at /demos/byoc-json-render
• Agent backend healthy (check /api/health)
• OPENAI_API_KEY set

Test Steps

1. Basic Functionality

• Navigate to /demos/byoc-json-render
• Verify the chat UI renders and suggestion pills are visible ("Sales dashboard", "Revenue by category", "Expense trend")

2. Sales dashboard

• Click the "Sales dashboard" suggestion
• Within 15 seconds, a @json-render/react-rendered MetricCard appears with a nested BarChart child — assert the data-testid="metric-card" and data-testid="bar-chart" elements are both visible under data-testid="json-render-root"

3. Pie chart

• Click "Revenue by category"
• Within 15 seconds, a PieChart renders inline (data-testid="pie-chart" visible)

4. Bar chart only

• Click "Expense trend"
• Within 15 seconds, a standalone BarChart renders

Known Limitations vs. langgraph-python port

• None in scope for parity — the catalog shape, suggestion prompts, and renderer tree are byte-compatible with the langgraph-python reference.

Expected Results

• Dashboard / pie / bar chart render inline via @json-render/react against the catalog in ./catalog.ts. The assistant message bubble is swapped for JsonRenderAssistantMessage once the content parses.