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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 v2.1.309 ·

Expired connector sign-ins now offer a way to sign in again

When a claude.ai connector's sign-in has expired in a remote session, Claude now gets a tool that retries and asks you to sign in again

You'll notice Improvements
JSON All of v2.1.309
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ConnectorsArea: what it touches
ImprovementsKind: in v2.1.309,
ImprovementsSection of the release

Unclear It is not known whether the remote switch for this is on for anyone.

What

Connectors from claude.ai sign in to outside services so Claude can use their tools. In remote sessions, when a connector's sign-in has stopped working, Claude Code used to drop that connector's tools. It now adds a stand-in tool named ' - authenticate (MCP)' instead.

  • Claude Code spots the expired sign-in when the service turns down its token.
  • The stand-in tool retries the connection.
  • It tells Claude to ask you to sign in again.
  • Claude can call it only once per turn.

Claude is told that the connector is installed but its sign-in has stopped working, so its tools are unavailable. This sits behind a remote switch that is off unless switched on remotely.

Why

Claude can now notice an expired connector sign-in and ask you to fix it, instead of the connector's tools silently disappearing.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not known whether the remote switch for this is on for anyone.

See this entry in the whole of v2.1.309 →

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