What probably matters to youSection of the release
Unclear What this tool behaviour does, and what the other conditions test, are not known.
What
Setting the environment variable CLAUDE_CODE_PEWTER_OWL_TOOL to true opts into a behaviour affecting three tools. Before, those three tools always returned a response ID.
They now leave the response ID out when a check on the last response passes. That check needs certain other conditions not to apply, and it needs a remotely controlled switch, tengu_witty_hearth, to be on. When the server sends nothing for that switch, it falls back to on.
Why
The switch gives a way to turn this opt-in behaviour off or on remotely, even for people who have set the environment variable.
Nothing 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 v2.1.290: on
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.
