Lobsters: When it comes to MCPs, everything we know about API design is wrong

“If the one and only tool lets you do everything, any call could involve all factors, unless you have inside knowledge about what it's going to do. ”

Lobsters discussion of Jesse Vincent's MCP design thesis (11 points, 7 comments). Commenters debate granular vs. monolithic tool surfaces through the lens of the confused deputy problem and prompt-injection exfiltration risk.