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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 v2.1.236 ·

Live artifact watches can reuse a subscription instead of re-subscribing

Re-armed artifact watches could reuse an existing connection instead of starting over, but the flag is off.

Nothing to try yet In Development
JSON All of v2.1.236
Nothing to try yetTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
In DevelopmentKind: in v2.1.236,
In DevelopmentSection of the release

Subscription reuse and renewal for artifact watches sits behind tengu_slate_lantern_ember, which falls back to false.

What

When a live artifact watch is automatically re-armed, it can reuse a cached subscription token or renew it rather than starting a fresh subscription each time. This sits behind the gate tengu_slate_lantern_ember, which falls back to false in this build.

Details
  • The cached token's lifetime is clamped between 30 and 60 minutes.
  • Reconnect backoff switches to a spread window when this mode is active.
  • Reuse and renewal are reported in the subscribe telemetry as token_reused, lease_remaining_min and token_renewed; failed renewals appear as renew_miss_*.
Evidence

restored_consent_not_editor

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

Read from
Feature flag
tengu_slate_lantern_ember Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.236: off

Read once, for one account on one subscription tier, against v2.1.236. 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 on for tengu_slate_lantern_ember, 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_slate_lantern_ember, 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: tengu_slate_lantern_ember

See this entry in the whole of v2.1.236 →

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