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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.

← All of v2.1.224 Home All releases ←olderv2.1.223 v2.1.225newer→
Claude Code v2.1.224

Remote Control sessions now explain that they are reply-only

You'll notice
Useful3 Signal3
Cross-Session Messaging not in their notes

Messaging a Remote Control session now explains it is reply-only until it messages you first.

Feature flag
tengu_harbor_kite On for this account, and not off by default

The flag server returned on for the one account this site reads, and nothing in this release compiles it off by default. The compiled default is shown below, and says which it is when we cannot read one: a fifth of gates compile in a string or a number rather than on or off, and most published releases have no gate table behind them at all. No client can see what the server returns for your account.

This account: on · anonymous baseline: on · compiled default in v2.1.224: on

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.224. It isn't a statement about your account. What a flag value here can and cannot tell you

CLAUDE_CODE_HARBOR_KITE
What

Sending a message or file to a name that matches a Remote Control session on your account no longer just fails. The tool now says such sessions are reply-only from here and can be messaged only after they message you first, and that the Remote send_message connector cannot reach these device-gated sessions. A hedged version of the message appears when the list of sessions could not be fetched.

Details
  • The ListAgents tool now also advertises ListPeers as an alias.
  • The cross-device recipient schema variant behind this sits on the remote-config flag tengu_harbor_kite, whose fallback here is off, or the CLAUDE_CODE_HARBOR_KITE environment variable.
Evidence

only in reply, after it messages you first

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 v2.1.224 →