> MCP gives us a registry such that we can enforce MCP chain policies

Do you have some more info on it?

looking up "registry" in the mcp spec will just describe a centrally hosted, npm-like package registry[^1]

[^1]: The MCP Registry is the official centralized metadata repository for publicly accessible MCP servers, backed by major trusted contributors to the MCP ecosystem such as Anthropic, GitHub, PulseMCP, and Microsoft.