You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ProjectsArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What
A session can be attached to a Project, a collection of docs and files. Claude Code gives Claude instructions about it. Those instructions have changed:
No Projects tool: a new mode lists synced sources as a count per type. If no Projects tool is available, a section headed "You have no Projects tool here" replaces the usage instructions. Before, Claude was always told to use project_read and project_write.
Failed docs list: there was a notice for when the list of a Project's docs and files could not be loaded, telling Claude to call project_info. It is replaced by the short marker marker_only_not_a_tool_call.
Why
Claude is less likely to say it can read or edit Project docs, or to try calling project_info, in a session where that tool is not there.
