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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
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Claude Code v2.1.238 ·

Silent-turn and artifact-room env vars added to an internal allowlist

Silent-turn reminder and artifact room environment variables are now recognised by name in the settings allowlist.

Use it now Notable No documentation found Internal Changes
JSON All of v2.1.238
Use it nowTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
Environment VariablesArea: what it touches
Internal ChangesKind: in v2.1.238,
What probably matters to youSection of the release
What

CLAUDE_CODE_SILENT_TURN_REMINDER, CLAUDE_CODE_SILENT_TURN_REMINDER_TURNS, CLAUDE_CODE_SILENT_TURN_REMINDER_TEXT and CLAUDE_CODE_ARTIFACT_ROOM joined a set of recognised environment variables that already held entries such as CLAUDE_CODE_HARBOR_KITE and USER_TYPE.

Details
  • The feature itself predates this build. The turn count comes from the tengu_hushed_lark flag with a default of 5, the reminder text from tengu_hushed_lark_text, and whether it runs at all from a per-model silent_turn_reminder check. Each is overridable by the matching env var.
Evidence

CLAUDE_CODE_SILENT_TURN_REMINDER_TURNS

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

Read from
Names in the bundleCLAUDE_CODE_SILENT_TURN_REMINDERCLAUDE_CODE_SILENT_TURN_REMINDER_TURNSCLAUDE_CODE_SILENT_TURN_REMINDER_TEXTCLAUDE_CODE_ARTIFACT_ROOM
Feature flag
tengu_hushed_lark 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 v2.1.238: not a boolean we can read

tengu_hushed_lark_text 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 v2.1.238: not a boolean we can read

Read once, for one account on one subscription tier, against v2.1.238. 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 5 for tengu_hushed_lark, 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_hushed_lark, 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.

See this across every release →

How sure we are
One source agreesOne thing we can check says the same as this entry.
The name it cites is new in this buildNew in this build: CLAUDE_CODE_ARTIFACT_ROOM

See this entry in the whole of v2.1.238 →

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