copilotkit--copilotkit/showcase/integrations/langroid/qa/tool-rendering-custom-catchall.md

QA: Tool Rendering (Custom Catch-all) — Langroid

Prerequisites

• Demo is deployed and accessible
• Agent backend is healthy (check /api/health)
• Agent slug tool-rendering-custom-catchall is registered at /api/copilotkit

Test Steps

1. Basic Functionality

• Navigate to the tool-rendering-custom-catchall demo page
• Verify the chat interface loads in a centered full-height layout

2. Feature-Specific Checks — Custom Wildcard Renderer

The page registers a single branded wildcard via useDefaultRenderTool with a custom render function (CustomCatchallRenderer). Every tool call paints through that same branded card.

• Click "Weather in SF"
• Verify a card with data-testid="custom-catchall-card" appears
• Verify data-testid="custom-catchall-tool-name" reads get_weather
• Verify data-testid="custom-catchall-status" transitions through streaming / running and lands on done
• Expand Arguments and verify the args JSON is visible
• Expand Result and verify the mock weather payload is visible
• Verify NO built-in default card shows for this tool

3. Expected

• Every tool paints through the same branded card
• No per-tool renderers
• Status badge matches tool lifecycle