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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.247

Remote tool forwarding now has its own admission check

Under the hood
Useful2 Signal3
Sessions

Whether a session may forward tools to a remote worker is now decided by its own check up front.

What

Whether a session may forward tool calls to a remote worker is decided up front by a dedicated check, matching how hooks and plugins are already admitted, and the answer is passed into headless startup.

Details
  • Requires an SDK URL, a CLAUDE_CODE_REMOTE_SESSION_ID, no CLAUDE_CODE_ENVIRONMENT_KIND, an allow-listed entrypoint, a live session channel, and a non-hermetic session.
  • Refusals carry one of four reasons: not_managed_cloud_worker, entrypoint, session_channel_off or hermetic.
Evidence

return { admitted: !1, reason: "not_managed_cloud_worker" };

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 v2.1.247 →