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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 permission prompt warns when a server takes over another server's name

MCP permission prompts now warn when another server owns this server's name, and that 'Don't ask again' moves the name and its allow rules

Group of 2 You'll notice Improvements
JSON All of v2.1.314
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.314,
ImprovementsSection of the release

What

MCP servers are add-ons that give Claude Code extra tools. When one of their tools needs your permission, Claude Code shows a permission prompt.

  • Permission requests now carry a takesOverServerName value.
  • When another MCP server already owns this server's name, the prompt shows a warning: "Another MCP server owns this server's name." It explains that choosing "Don't ask again" moves the name, and the allow rules saved for it, to this server.
  • The always-allow option may now be shown even for tools that normally hide it. Before, showAlwaysAllow was blocked when the tool suppressed that rule.

Why

Allow rules are saved by server name. Without the warning, choosing "Don't ask again" could silently hand rules you gave one server to a different server. Read the warning before approving if two servers share a name.

See this entry in the whole of v2.1.314 →

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