URL to markdown, size-capped, with redirect and private-address checks so a public URL cannot be walked into the cloud metadata endpoint. It belongs to a net set that is off unless asked for: it is the one tool that leaves the machine.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
