Source Intelligence

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.

All of v2.1.236 Home All releases olderv2.1.235 v2.1.237newer
Claude Code v2.1.236

Idle subscriptions cannot ride a structured message

Under the hood
Useful1 Signal2
Cross-Session Messaging

Asking to be pinged when another session idles only works with plain text or no message.

What

An idle subscription can accompany a plain-text message or stand alone with an empty message, but not a structured one. Bridge targets, did-scheme targets and messaging yourself are each refused with their own message.

Details
  • Outcomes are recorded under a new telemetry name.
  • Unconditional inside the tool; which refusal you get depends on the target's address scheme.
Evidence

notify_when_idle cannot ride a structured message \u2014 send plain text, or omit the message for a pure subscription

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 v2.1.236 →