What
New validation prevents /update when it could cause problems.
Details
- "Cannot /update while background tasks are running — wait for them to finish, then try again." — prevents mid-task updates that could disrupt running agents
- "Cannot /update — session transcript is in a different project directory than the child would resolve. Exit the worktree or restart manually." — prevents update failures in worktree contexts
Evidence
Update guard messages (search for "Cannot /update while background tasks")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.