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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 v2.1.200 ·

ObserverReport Tool

Entry
JSON All of v2.1.200
EntryKind: in v2.1.200,
New FeaturesSection of the release
What

New tool available exclusively to observer agents for sending one-way advisory reports to the agent they are observing.

Details
  • Takes a single report string parameter
  • Target is resolved from the observer's pairing — no recipient to name
  • Delivers to the observed agent's task queue as a meta message
  • Returns an error if called outside an observer context, if the pairing is not armed, or if the observed agent is not running
  • Expected usage pattern is silence: only report when something genuinely warrants it
Evidence

Tool implementation (search for "ObserverReport is only available to an observer agent", "Your observer pairing is not armed")

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

See this entry in the whole of v2.1.200 →

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