Comment by cruffle_duffle

Tool discovery is only one very small part of the “context problem”. The bigger problem is the outputs. You can’t compost them. Ever watch Claude code run some crazy shit through python and jq to take some input, transform it in some crazy way and output exactly what it needs back into its context? You simply can’t do that with mcp. It’s basically forced to accept the exact shape of the mcp output into its context and then take that intermediate output and dump it right back into another tool. That is incredibly wasteful!

If your lucky the mcp might expose a way to ship its output into a text file so at least the agent can have a go at it with CLI tools.