Streamlit multi-agent research app with routing, fallback, verification, and synthesis built on AG2.
A Streamlit app that blends agent teamwork with agent-enabled routing and fallback, built entirely on AG2. ## What This Shows - **Agent teamwork**: explicit roles and sequential handoffs - **Agent-enabled routing**: a clear decision step with local-doc vs web fallback - **AG2-first implementation**: no Microsoft AutoGen dependency; installs via `ag2[openai]` ## Features - Local document upload (PDF, TXT, MD) - Routing decision based on document coverage - Optional web fallback via SearxNG - Verifier step to check evidence sufficiency - Final synthesis with citations ## How To Run 1. Install dependencies: ```bash pip install -r requirements.txt ``` 2. Run the app: ```bash streamlit run app.py ``` 3. Provide your OpenAI API key in the sidebar and ask a question. ## How It Works 1. **Triage Agent** decides whether the question should be answered from local docs or the web. 2. **Local/Web Research Agent** collects evidence. 3. **Verifier Agent** checks evidence strength. 4. **Synthesizer Agent** produces the final answer with citations. ## Optional Add-ons (AG2 0.11) - **AG-UI protocol integration** for richer UI rendering - **OpenTelemetry tracing** for debugging multi-agent workflows These are optional and not required to run this example. ## Notes - Default model used is `gpt-5-nano`. You can change it in the sidebar before running a query. - Web fallback uses the SearxNG public instance at `https://searxng.site/search`. This instance may be rate-limited.