QA: Frontend Tools — Claude Agent SDK (Python)

Prerequisites

• Demo is deployed and accessible
• Agent backend is healthy (check /api/health)
• ANTHROPIC_API_KEY is set

Test Steps

1. Basic Functionality

• Navigate to /demos/frontend-tools
• Verify a chat surface renders in the centered card
• Send a message: "Change the background to a blue-to-purple gradient."
• Verify the agent calls the change_background frontend tool
• Verify the page background updates to the requested gradient

2. Feature-Specific Checks

• Click the "Sunset theme" suggestion — background changes to a sunset gradient
• Ask "Change the background back to default." — background resets
• Verify no errors in the console

3. Error Handling

• Verify the chat remains usable after multiple background changes

Expected Results

• Background element with data-testid="background-container" reflects the CSS background value returned by the tool handler
• Agent calls the tool and produces a short confirmation message