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Claude Code v2.1.246

Hosts can turn off the auto-mode handback classifier

Use it now
Useful3 Signal4
Permissions Notable not in their notes

A host can set classifyHandoff false to skip the classifier deciding whether a subagent hands control back.

classifyHandoff
What

When a subagent finishes in permission mode auto, Claude Code normally runs a classifier to decide whether control hands back to you. A host or SDK integration can now set classifyHandoff: false in its config to skip that classifier entirely. It applies to both local subagents and cloud agents run with isolation: 'remote'. The guard only fires in mode auto, so nothing changes unless a host opts out.

Details
  • Skips are logged as a tengu_auto_mode_decision event with decision skipped_enveloped_handback, plus the handoff marker and the tool-use count.
  • With no host opt-out, the classifier runs exactly as before.
Evidence

skipped_enveloped_handback

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.246 →