You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
VM Tool ServingArea: what it touches
ImprovementsKind: in v2.1.311,
What probably matters to youSection of the release
Unclear Nothing says how a session gets set to run only inside a VM, so it is unclear who can reach this message.
What
A tool call is a single action Claude takes, such as running a command or reading a file. Claude Code now has a message for the case where a target is set to run this session's tool calls only inside a VM (a virtual machine, a separate isolated computer) and that VM is not available. The message tells Claude that nothing ran, that it should not try again, and that it should tell you.
Why
In that situation Claude should report the problem to you rather than repeat an action that cannot run.
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 doubtNothing says how a session gets set to run only inside a VM, so it is unclear who can reach this message.
