openfatture

OpenFatture 2.1.0

Highlights

• Default assistant backend is LangGraph (langgraph_tool_loop).
• Single tool-loop implementation: GraphAssistantBackend is the product orchestrator; ChatAgent is slimmed to structured output + prompt helpers and delegates tool/plain turns to the same graph backend.
• Rollback remains available: ASSISTANT_BACKEND=chat.

Upgrade notes

Before (2.0.x)	After (2.1.0)
Default assistant_backend=chat	Default assistant_backend=langgraph
Dual tool loops (ChatAgent native + graph helper)	One tool loop (GraphAssistantBackend)

No new public CLI commands. Set ASSISTANT_BACKEND=chat to force the rollback path. Inspect with openfatture status --json (assistant_backend, assistant_backend_id).

Verification

• Parity tests: tests/ai/test_assistant_backend_parity.py
• Default backend assertions in runtime / tool-loop tests

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