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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
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Claude Code v2.1.290 ·

A shortcut to stop background agents, and a proactivity control in the SDK

A hint shows the shortcut that stops background agents, and the SDK gains a request to set the proactivity level

Use it now Notable New Features
JSON All of v2.1.290
Use it nowTier: how much it should matter to you
5Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Background AgentsArea: what it touches
New FeaturesKind: in v2.1.290,
What probably matters to youSection of the release
What
  • Stop background agents: a new hint says to press the shortcut twice to stop background agents, and then says "again…" once the first press is registered. Background agents are helpers that keep working while you do other things. The shortcut is chat:killAgents, set to ctrl+x ctrl+k by default.
  • Proactivity level: when Claude Code is driven by a program through the SDK, or run without its interactive screen, that program can now send a set_proactivity_level request. The level sets how much Claude does on its own and can move the permission mode (what each level does). Switching to proactive this way can put the session in bypass mode when the session allows bypass, unless the request sets offer_bypass to false. A cloud-hosted session refuses the request.
Why

You get a quick way to stop agents running in the background. Programs controlling Claude Code get a new setting they can change.

Read from
Names in the bundlechat:killAgents
What has happened since
Corrected by hand The operator corrected this entry by hand after it was published.
Corrected by hand The operator corrected this entry by hand after it was published.

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