Simon Willison’s Weblog

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Friday, 19th June 2026

Sighting 6:55 PM – 7:02 PM — California Brown Pelican, Pacific Harbor Seal, in Monterey Bay National Marine Sanctuary, CA, US, CA
California Brown Pelican
California Brown Pelican
Pacific Harbor Seal
Pacific Harbor Seal

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, comment on Hacker News

# 10:45 pm / ai, generative-ai, llms, model-context-protocol, skills

Thursday, 18th June 2026

2026 » June

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