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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.287 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.288 ·

New hidden switch tied to an "arbiter" permission mode

Claude Code has a new remotely controlled switch, off unless turned on, with a check for an "arbiter" permission mode beside it

Nothing to try yet Notable In Development
JSON All of v2.1.288
Nothing to try yetTier: how much it should matter to you
5Useful: my rating, 1 to 5
5Signal: worth watching, 1 to 5
PermissionsArea: what it touches
In DevelopmentKind: in v2.1.288,
What probably matters to youSection of the release
What

Claude Code has a new remotely controlled switch, tengu_sorrel_trellis_gusset. It is off unless it is switched on remotely. Next to it is a check that is true only when the permission mode is "arbiter" and a second condition is met. A permission mode controls how much Claude may do without asking you.

Why

Nothing in this release shows what the switch or the "arbiter" mode does.

Read from
Feature flag
tengu_sorrel_trellis_gusset Not 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 v2.1.288: 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 v2.1.288. It isn't a statement about your account. What a flag value here can and cannot tell you

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 doubtIt is not clear what the switch controls, where the arbiter check is used, or what "arbiter" mode is.
The name it cites is new in this buildNew in this build: tengu_sorrel_trellis_gusset

See this entry in the whole of v2.1.288 →

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