What
A turn is one round of Claude responding. When a turn starts, Claude Code now records who started it: "person" when the latest real user message came from a human, and "automatic" otherwise, for example when Claude Code continues on its own.
Why
This lets later events about a turn tell your prompts apart from automatic continuations.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
Where this tag is used after it is recorded is not settled.