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.
Users who cannot upgrade their plan now see a clearer message: "Upgrade not currently available. For additional usage, run /extra-usage." instead of a generic error.
Evidence
Upgrade handler (search for "Upgrade not currently available")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
