# Quoting Sean Lynch

> Source: <https://simonwillison.net/2026/Jun/19/sean-lynch/#atom-everything>
> Published: 2026-06-19 22:45:49+00:00

The real valuable capability MCP offers over skills/CLI is isolating the auth flow outside of the agent’s context window, and potentially out of the harness completely. [...]

Maybe the idealized form of MCP is just an auth gateway for the API and nothing else. That’d still be a win.

— [Sean Lynch](https://news.ycombinator.com/item?id=48592163#48593190), comment on Hacker News

Tags: [model-context-protocol](https://simonwillison.net/tags/model-context-protocol), [llms](https://simonwillison.net/tags/llms), [ai](https://simonwillison.net/tags/ai), [generative-ai](https://simonwillison.net/tags/generative-ai), [skills](https://simonwillison.net/tags/skills)