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Sweep 30 Oct 2026 · 01:02Z Build v2.1.314 532 read Stable v2.1.308 Latest v2.1.314 Next v2.1.314 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.314 ·

MCP server mode returns a clear result when a permission request is declined

With CLAUDE_CODE_MCP_SERVE_TOOL_OUTPUT on, a declined or withdrawn permission request now returns a result saying nothing was run

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JSON All of v2.1.314
Use it nowTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.314,
What probably matters to youSection of the release
What

Claude Code can act as an MCP server, which means another program can connect to it and call its tools. Sometimes a tool call needs permission first. When CLAUDE_CODE_MCP_SERVE_TOOL_OUTPUT is turned on and that permission question is answered with a no, or withdrawn, the connected program now gets a result marked "acknowledged" with the text: "Nothing was run: the permission question was answered with a no, or taken back."

Why

Programs connected to Claude Code get a defined answer when a permission request is declined, so they can tell that nothing ran.

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