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.
Plugin dependency specifications now support both string and object formats, with version constraint stripping (@^version suffixes are now parsed and removed). Plugin resolution no longer requires a feature flag gate.
Evidence
Enhanced dependency schema (search for "@\\^[^@]*$")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.