Instructions for using with ToolHive don't work for local cluster

[danbarr]

The README details how to use the MKP MCP with the ToolHive CLI, but this does not work for a local K8s cluster like kind. The kubeconfig file has a cluster endpoint of https://127.0.0.1:<port>, but from inside a container this needs to be host.docker.internal on Docker Desktop or 172.17.0.1 on Docker Engine. Problem is, altering this in the kubeconfig then introduces a certificate mismatch error.

While running MKP from outside a cluster pointing to a local kind cluster isn't a common use case (we'd recommend an in-cluster deployment of MKP using the ToolHive Operator instead), it's worth a note in the README that using the ToolHive CLI is intended for remote clusters.