Unclear The finding does not say what side-session-brief, side-session-start, or side-session-wake correspond to in user-visible terms, only that they route to host_synthetic.
Claude Code tracks where a session or turn originated from, and internally groups these into broader categories for reporting purposes. Several origin types have been added to the mapping that produces this grouping:
side-session-briefside-session-startside-session-wakeother
Each of these now explicitly maps to the host_synthetic category, rather than falling into it through a default catch-all case.
This is an internal bookkeeping change. Making the mapping explicit rather than relying on a default case reduces the chance that new origin types get miscategorized in the future, but it should not change anything a user of Claude Code sees or interacts with directly.
The finding does not say what side-session-brief, side-session-start, or side-session-wake correspond to in user-visible terms, only that…