You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SettingsArea: what it touches
ImprovementsKind: in v2.1.290,
ImprovementsSection of the release
Unclear Which keys are limited to a single value is not stated.
What
A project's settings are the settings file stored inside a project folder, which anyone who shares that folder can edit. Claude Code already ignored some keys there, with a warning saying either that the key can only come from the environment or that project settings cannot set it.
There is now a third case: a key that a project's settings may set only to one specific value. If a project tries a different value, the warning says that a project's settings can only set it to that value. Some further keys are also now skipped when they come from project settings.
Why
This draws a finer line around what a shared project folder is trusted to change, instead of an all-or-nothing rule for each key.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhich keys are limited to a single value is not stated.
