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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 v2.1.229

Adopted-agent and file-sync failures carry codes

Under the hood
Useful2 Signal2
File Sync

Agent adoption and file-sync failures now come with specific reason codes instead of just a message.

What

Validation failures when adopting an agent now come with codes such as ADOPT_WRONG_LEAF, ADOPT_PARENT_NOT_REGULAR and ADOPT_SCOPING_UNUSABLE, and file-sync status lines pair their message with a reason: lane_full, too_many_files, store_unreadable or seed_incomplete.

Evidence

ADOPT_SCOPING_MISMATCH

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 v2.1.229 →