A local bridge that puts Revit 2022-2027 inside MCP's tool surface. Exposes 226 tools for querying elements, managing parameters, batch operations, and direct C# execution through send_code_to_revit. Everything runs on your machine over TCP or Named Pipe, with batch_execute wrapping multiple commands in a single TransactionGroup so undo works cleanly. Ships with ToolBaker, which watches repeated workflows and can promote them into personal tools that show up in both MCP and the Revit ribbon. If you're automating BIM workflows with Claude or Cursor and need transaction-safe access to the Revit API without writing a full add-in, this is the runtime.