Enable the Thread Triage Agent to connect with and search external knowledge bases provided in PDF format. This feature would allow users to import and index content directly from PDF files so the agent can operate in a Q&A mode, answering questions based on that content. It would support onboarding workflows, advanced conversational search, and custom integrations with other tools or platforms, making it possible to leverage existing PDF-based documentation like Harmony Email knowledge bases without manual conversion or re-entry.