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Same for MCP - there is always a chance an agent will mess up the tool use.

This kind of LLM’s non-determinism is something you have to live with. And it’s the reason why I personally think the whole agents thing is way over-hyped - who need systems that only work 2 times out of 3, lol.





The fraction is a lot higher than 2/3 and tool calls are how you give it useful determinism.

Even if each agent has 95% reliability, with just 5 agents in the loop the whole thing is just 77% reliable.

Well fortunately that's not what actually happens in practice.



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