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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.275 ·

Alternate background-agent-stop path behind tengu_zinc_harbor flag

A new alternate way to stop background agents on cancel exists behind an unreleased flag

TierNothing to try yethow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaBackground Taskswhat it touches
KindIn Developmentin v2.1.275,
Nothing to try yet

A new alternate way to stop background agents on cancel exists behind an unreleased flag

What

When you cancel (Ctrl-C) while background tasks are running, Claude Code can now take one of two paths to stop those background agents, depending on a feature flag called tengu_zinc_harbor.

Why

This is internal groundwork for changing how background agents get stopped on cancel; it isn't yet active for general users.

Read from
Feature flag
tengu_zinc_harbor 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 v2.1.275: 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 v2.1.275. It isn't a statement about your account. What a flag value here can and cannot tell you

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_zinc_harbor

See this entry in the whole of v2.1.275 →

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