Did you consider that maybe he has different information than you do, and thus he holds a different opinion?

I for one love MCP. It's way faster in my experience than skills / shell. And I like how (with Claude Code) I can setup the MCP in the web interface, use it in the chat and the CLI.

Plus the flow to add an MCP via the browser is achievable to any user.

And one thing I don't understand of skills is this. I have an MCP for my life organisation app that authorizes via OAuth. The flow is fully via the browser so I can use the app session and its stored somewhere in claude.ai. How does authentication work with skills?