Compaction is when Claude Code shortens a long conversation by replacing earlier parts with a summary. Some tools are deferred, meaning they are loaded only when needed instead of at the start. During compaction, Claude Code can now add a list of the deferred tools that were already loaded before the summary to its notice about those tools.
This only happens when a server-side switch is on. That switch is off unless it is switched on remotely. When it is off, the notice is left as it was.
It affects whether a compacted session keeps track of which on-demand tools it had already loaded, instead of losing that after the summary.
tengu_radiant_lemur Not enough to sayNothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.311: off
These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.
Read once, for one account on one subscription tier, against v2.1.311. It isn't a statement about your account. What a flag value here can and cannot tell you
New in this build: tengu_radiant_lemur