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.
When forking sessions, the system now tracks a fork-context-ref linking the child to the parent context. This improves session lineage tracking for forked conversations.
Evidence
Fork context reference (search for "fork-context-ref" and "Failed to record fork-context-ref").
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
