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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.223 ·

MCP control tool gives a session-specific message when controls are unavailable

The MCP tool now says controls are unavailable in this session rather than blaming startup.

You'll notice Improvements
JSON All of v2.1.223
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.223,
ImprovementsSection of the release
What

The MCP control tool distinguishes between a terminal that is still starting up and a session where the controls simply do not exist.

Details
  • When reconnect, enable and disable handles are missing in a non-interactive or remote session, it now returns "Reconnect, enable, and disable aren't available in this session."
  • Otherwise it keeps the previous text about the terminal still starting up or showing another view.
Evidence

Reconnect, enable, and disable aren't available in this session.

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

See this entry in the whole of v2.1.223 →

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