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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.140

MCP URL Elicitation

What

A new MCP elicitation type (mcp_url_elicitation) allows MCP servers to prompt the user to provide a URL before completing a request.

Details
  • MCP servers that need a user-supplied URL (e.g., for resource access) can now issue a structured elicitation request.
  • The default response when cancelled is { action: "cancel" }.
  • This follows the same elicitation protocol as other interactive MCP flows.
Evidence

De$() / IUH (search for "mcp_url_elicitation")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.140 →