QA: Agentic Chat — LangGraph (Python)

The minimum-viable CopilotChat demo: vanilla <CopilotChat> wired to a neutral helpful-assistant agent, with three starter-prompt suggestions. No tools, no custom rendering — anything richer belongs in dedicated demos (frontend-tools, tool-rendering, hitl-in-chat, etc.).

Prerequisites

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

Test Steps

1. Initial render

• Navigate to /demos/agentic-chat
• Verify the chat input renders with placeholder "Type a message..."
• Verify all three suggestion pills are visible:
  • "Write a sonnet"
  • "Tell me a joke"
  • "Is 17 prime?"

2. Free-form chat

• Type a basic message (e.g. "Say hello") and press Enter
• Verify the assistant streams back a text response

3. Suggestion pills

• Click the "Tell me a joke" pill
• Verify the message is sent and the assistant streams back a joke

4. Multi-turn context

• Send "My name is Alice."
• Wait for the assistant response
• Send "What name did I just give you?"
• Verify the assistant's second response contains "Alice"

5. Hygiene

• No console errors during normal usage
• No layout breakage with a very long input

Expected Results

• Chat input mounts within ~3 seconds
• Assistant first-token latency is under ~5 seconds for short prompts; full responses complete within ~30 seconds
• Suggestion pills render alongside an empty chat and disappear once a conversation is in progress