Unclear It is not stated which MCP tools count as able to send files elsewhere, or whether this applies to every MCP tool.
What
MCP tools are extra tools that outside servers add to Claude Code. When one of them can send this session's files somewhere else, Claude Code now asks for your permission before Claude uses it. The prompt says the tool 'can send this session's files elsewhere, so Claude asks before using it. Allow it if you expected this.'
Why
You get a chance to stop your files leaving your machine through a tool you did not expect to send them.
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The writer flagged doubt
It is not stated which MCP tools count as able to send files elsewhere, or whether this applies to every MCP tool.