Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Diskless SessionsArea: what it touches
Internal ChangesKind: in v2.1.299,
Internal ChangesSection of the release
Unclear It is not clear which kinds of session count as not writing to disk.
What
In sessions that do not write to disk, Claude Code now skips its plan-file handling:
reading and writing plan files
copying plan files when a session is resumed or forked (split into a new copy)
recovering workshop documents
Saving an ultraplan in such a session now fails with the message "Cannot save the plan: this session does not write to disk". Before, plan files were always read and written.
Why
In sessions without disk storage, plan files are no longer created or recovered, and an ultraplan save fails with a clear message instead of failing silently.
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 clear which kinds of session count as not writing to disk.
