Wave-2 follow-up — ag2:
- hitl-in-chat-booking is functionally identical to hitl-in-chat on AG2 (both
use useHumanInTheLoop with TimePickerCard); aliased to the same /demos/hitl-in-chat
route, mirroring the langgraph-python manifest. Earlier 'skipped — missing
primitive' note was incorrect (it conflated the booking variant with the
useInterrupt-driven flow).
- Added not_supported_features: [gen-ui-interrupt, interrupt-headless] to the
manifest. Both depend on LangGraph interrupt() resumable round-trips that
AG2 ConversableAgent cannot reproduce.
- PARITY_NOTES updated to reflect the corrected classification.
Ports the second batch of langgraph-python showcase cells to AG2.
Each demo gets a dedicated AG2 sub-app mounted at a named path on the
agent server, plus (where required) its own /api/copilotkit-* runtime
route so the runtime middleware config doesn't leak into other cells.
- declarative-gen-ui — A2UI Dynamic Schema. Backend (a2ui_dynamic.py)
owns the generate_a2ui tool, calls a secondary LLM bound to
render_a2ui, returns an a2ui_operations container. Runtime route
with a2ui.injectA2UITool: false.
- a2ui-fixed-schema — A2UI Fixed Schema. Backend (a2ui_fixed.py) ships
flight_schema.json and emits a2ui_operations directly from
display_flight. Runtime route with a2ui.injectA2UITool: false.
- mcp-apps — Backend (mcp_apps_agent.py) is a no-tools ConversableAgent;
runtime route configures mcpApps.servers pointing at the public
Excalidraw MCP server.
- open-gen-ui, open-gen-ui-advanced — Backends are no-tools
ConversableAgents; shared runtime route enables openGenerativeUI.
- agentic-chat-reasoning, tool-rendering-reasoning-chain — Frontend
ports of the reasoning cells. Custom reasoningMessage slot wired as
in the canonical reference. tool-rendering-reasoning-chain has its
own backend with weather/flights/stock/dice tools. AG2 caveat
documented: ConversableAgent does not natively emit AG-UI
REASONING_MESSAGE_* events the way LangGraph deepagents does, so the
reasoning slot may render empty until/if AG2 adds reasoning emission.
Updates manifest.yaml with all 7 new demo entries plus matching feature
list, and updates PARITY_NOTES.md to record Batch 4.
The showcase framework directories better reflect their role as
integration examples rather than distributable packages.
Renames showcase/packages/ -> showcase/integrations/ and updates
the test docker-compose file reference accordingly.
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