What
A git worktree is an extra working folder attached to the same git project. Claude Code refuses to upload from a linked worktree in some cases. When the reason is worktree_config, the refusal now also warns that a new worktree made from this one would be refused too, because current versions of git copy that configuration file into it.
Why
You will not waste time making a fresh worktree from the same one, expecting it to get around the refusal.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
The finding does not say what is being uploaded or where it goes.