It's as frugal as your harness makes it. It's just a bunch of tools and a description of how to use them. Most mature harnesses do some kind of tool search and/or progressive disclosure. Many harnesses have some smarts to page out overwhelming results to a file so a model can grep/jq them easily. Some harnesses expose tool schema to models so their results can be directly transformed or even chained in [code mode](https://blog.cloudflare.com/code-mode/).
I thought we were all smarter than directly giving agents access to all of our long lived tokens
MCP is just an API designed to be token frugal
Frugal is definitely not a word i would use in the same sentence as mcp
It's as frugal as your harness makes it. It's just a bunch of tools and a description of how to use them. Most mature harnesses do some kind of tool search and/or progressive disclosure. Many harnesses have some smarts to page out overwhelming results to a file so a model can grep/jq them easily. Some harnesses expose tool schema to models so their results can be directly transformed or even chained in [code mode](https://blog.cloudflare.com/code-mode/).
Why is it delusion? What are better ways to make LLM talk to other services?