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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.290 ·

Background subagents and workflow agents marked as stoppable

Background subagents and workflow agents now carry a marker saying the stop-agents action can stop them

Under the hood Internal Changes
JSON All of v2.1.290
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SubagentsArea: what it touches
Internal ChangesKind: in v2.1.290,
Internal ChangesSection of the release

Unclear It is not clear what reads this marker or what it changes when you stop agents.

What

A subagent is a helper that Claude starts to work on part of a task. Subagents that run in the background, and agents started by workflows, now carry a marker, stoppableByKillAgents, saying they can be stopped by the action that stops running agents.

Why

In practice, this may decide whether that stop action applies to these agents.

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 reads this marker or what it changes when you stop agents.

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