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.
OAuth token refresh now attempts an SDK callback-based recovery when no local refresh token is available. This provides a fallback path for SDK consumers that manage their own token lifecycle.
Evidence
SDK OAuth recovery (search for "SDK getOAuthToken callback")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
