What
When a sender supplies withdrawStandingServedCall, the part of Claude Code that relays served tool calls now passes an optional withdrawStanding step along with it.
Why
A standing served call can now be taken back rather than left in place.
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 a standing served call is or where this is used.