Introducing the Notebook Agent

Introduced the Notebook Agent, an AI agent integrated directly into the Hex notebook environment. The agent leverages Claude Sonnet 4 and Hex tools to assist users with planning, data searching, creating SQL and Python cells, visualizing data, and summarizing findings. Key features include @ mentioning cells and tables for context, autosaving versions of agent-generated threads, and a cell-by-cell diff view for reviewing and accepting/rejecting generated code. This enhances the iterative and collaborative data analysis workflow within Hex.