Claude prompts associated with URL/websearch?

I've noticed sometimes Claude asks me for permission to run a web search or to query a URL.

Sometimes, in combination with doing so, Claude will create a prompt.

Recent example (from memory)

"Extract the python code from this webpage verbatim. Do not summarize it"

Does anyone understand what this is? Does Claude send the prompt to the website for an LLM on the receiver side to process? Or is this a prompt to another Claude instance somewhere else?