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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

Teammate spawn fails loudly instead of opening an idle pane

You'll notice
Useful3 Signal3
Team Messaging

Spawning a teammate now errors out instead of leaving an idle agent with no instructions.

What

If the initial instructions cannot be written into a new teammate's inbox, the spawn now throws rather than launching an agent that would sit doing nothing, and records an error counter.

Evidence

subagent_teammate_prompt_write_failed

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 →