Mu turns email into agent control

Mu’s strongest idea is treating an agent as an addressable worker rather than another chat window. The broad tool surface is compelling, but operating email, credentials, payments, and third-party integrations yourself makes deployment and security the real product challenge.

• –One MCP endpoint replaces a collection of narrowly scoped tool servers.
• –Email gives agents an asynchronous interface that fits delegation better than constant chat prompting.
• –Self-hosting and AGPL licensing offer meaningful control over data, providers, and customization.
• –The shared service registry keeps the web app, MCP endpoint, CLI, and custom apps aligned.
• –Developers should evaluate authentication, outbound-mail reputation, secret management, and tool permissions before exposing it publicly.