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

Teammate messages whose summary swallowed the body are split back apart

You'll notice
Useful3 Signal3
Agent Messaging

Messages from another agent no longer arrive as one giant summary with the body buried inside.

What

When a message from another agent arrives with its whole body stuck inside the summary field, Claude Code now detects the leaked closing tag and message opener and splits summary and body back out, so the recipient sees a real message rather than a giant summary.

Details
  • Two forms are handled and reported separately, one where the leaked markup is namespaced and one where it is bare.
  • Repair is refused when the trailing text still looks like leftover markup or JSON, in which case the message is left alone rather than mangled further; those cases are reported as unrepaired markup or unrepaired JSON.
  • Summaries are still derived and truncated exactly as before.
Evidence

split_slipped_summary_

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 →