What
A subagent is a helper agent Claude starts to handle part of a task. Its transcript is the saved record of what it did. When Claude Code lists these transcripts, it now works out the project folder differently: if there is no project, it falls back to a new way of choosing the folder.
Why
This is part of how Claude Code handles sessions that run without a project.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
It is not clear whether transcript locations change for ordinary sessions that do have a project.