copilotkit--copilotkit/showcase/integrations/mastra/qa/frontend-tools.md

QA: Frontend Tools — Mastra

Test Steps

• Navigate to /demos/frontend-tools
• Verify the background container (data-testid="background-container") is visible
• Ask: "Change the background to a sunset gradient"
• Verify the background container style changes away from the default

Expected Results

• useFrontendTool handler is invoked by the agent
• Background updates after the tool completes