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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.68 ·

Server-controlled effort dialog [Gradual Rollout]

Entry
JSON All of v2.1.68
EntryKind: in v2.1.68,
ChangesSection of the release
What

The redesigned effort dialog described above is gated behind the tengu_grey_step2 feature flag, which defaults to { enabled: false }.

Status

Feature-flagged (disabled by default, server-controlled rollout)

Details
  • The tengu_grey_step2 flag controls whether the dialog appears and provides its title and description text
  • A separate tengu_quartz_falcon flag also influences the default effort level for Opus 4.6
  • First-party users who previously dismissed the old effort dialog won't see the new one until tengu_grey_step2 is enabled server-side
  • API users (By() or wb6()) can also be enrolled via the same flag
Evidence

Dialog visibility (search for "effortCalloutV2Dismissed") — zIq() at line ~588370 checks zb6().enabled

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Read from
Feature flag
tengu_grey_step2 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 v2.1.68: no gate table built for this version

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 v2.1.68. It isn't a statement about your account. What a flag value here can and cannot tell you

What has happened since
Flag reading moved The flag server now returns {"dialogDescription":"Effort determines how long Claude thinks for when completing your task. We recommend medium effort for most tasks to balance speed and intelligence and maximize rate limits. Use ultrathink to trigger high effort when needed.","dialogTitle":"We recommend medium effort for Opus","enabled":true} for tengu_grey_step2, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading moved The flag server now returns nothing at all, having stopped carrying it for tengu_grey_step2, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

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See this entry in the whole of v2.1.68 →

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