Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
API RequestsArea: what it touches
Internal ChangesKind: in v2.1.323,
Internal ChangesSection of the release
What
With each request, Claude Code sends a header listing the tools that have been used. A header is a small piece of extra information attached to the request. Claude Code now builds this list, measures it, and drops names past a limit. When it drops names, it records how many names were sent and how many were left out.
Before, the list was sent in full with no limit.
Why
The header can no longer grow without bound, even in sessions that use many tools.
