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.
A new metadata display now shows output token usage per turn and per session: "Output tokens — turn: X · session: Y". This gives users better visibility into how many tokens each response consumes.
Evidence
Token tracking (search for "Output tokens — turn")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.