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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 v2.1.75 ·

Agent Message Queuing to Running Agents

Entry
JSON All of v2.1.75
EntryKind: in v2.1.75,
ChangesSection of the release
What

When resuming a running agent via Agent({resume: id}), the prompt is now queued for delivery instead of throwing an error. Coordinators can also send messages to running agents via SendMessage.

Details
  • If an agent is already running, calling Agent({resume: id}) queues the prompt and returns a queued_to_running status
  • The agent receives the queued message at its next tool-round boundary
  • SendMessage({to: "<name>", message: "..."}) can also queue messages to running local agents
  • A coordinator message is rendered with: "The coordinator sent a message while you were working: [...] Address this before completing your current task."
Evidence

Agent message queue system (search for "queued_to_running", "Message queued for delivery", "pendingMessages")

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

See this entry in the whole of v2.1.75 →

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