feat: suppress SSE events for internal graph nodes - #222
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Add `internal: true` flag to graph node configs to suppress intermediate output from appearing in user chat. Internal nodes still execute and pass data to downstream nodes, but their SSE events (node_started, response, node_completed) are filtered from the stream. Changes: - Add internal node detection in GraphEngine (explicit flag + auto-detect for nodes referenced only via items_path in mcp_tool_map) - Mark places_list_task as internal in vacation planner template since it only feeds destination_research_task via items_path - Fix node dependency ordering: add explicit depends_on for destination_research, hotel_research, and flight_research tasks - Remove incorrect dependencies from itinerary_options_task (was waiting for hotel/flight when it only needs destination research) - Add unit test test_internal_node_suppressed to verify SSE filtering This prevents raw JSON arrays and intermediate processing results from appearing in the user's chat while preserving the data flow between nodes. Test plan: pytest tests/unit/test_graph_engine.py passes (38 tests)
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sauagarwa
approved these changes
Jul 15, 2026
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Add
internal: trueflag to graph node configs to suppress intermediate output from appearing in user chat. Internal nodes still execute and pass data to downstream nodes, but their SSE events (node_started, response, node_completed) are filtered from the stream.Changes:
This prevents raw JSON arrays and intermediate processing results from appearing in the user's chat while preserving the data flow between nodes.
Test plan: pytest tests/unit/test_graph_engine.py passes (38 tests)