You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Auto ModeArea: what it touches
ImprovementsKind: in v2.1.281,
ImprovementsSection of the release
What
In auto mode, a classifier (a model that judges whether an action is safe) usually checks each tool call, meaning each action Claude takes such as running a command or editing a file. Tool calls that Claude Code generates itself for a specific tool, for example ones marked synthesizedBy: "observer-gate", now skip that check and are allowed. The recorded reason starts with harness-synthesized:.
This happens only when both modes involved allow auto approval and no safety check has flagged the call. The existing shortcut for plugin-originated calls now shares the same underlying code.
Why
Actions Claude Code starts on its own no longer wait for a classifier verdict. Any call that a safety check has flagged still goes through the normal checks.
Read from
Feature flag
tengu_structured_creekNot enough to say
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 v2.1.281: 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.
