Comment by abrookewood

Looks similar to Elixir's Tidewave MCP server, which currently also supports Ruby: https://tidewave.ai/

Paraphrasing: Connect your editor's assistant to your web framework runtime via MCP and augment your agentic workflows and chats with: Database integration; Logs and runtime introspection; Code evaluation; and Documentation context.

Edit: Re-reading MCP-B docs, that is more geared towards allowing visitors to your site to use MCP, while Tidewave is definitely focussed on Developers.