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 validation now includes version constraint checking. When a plugin requires a specific version of a dependency, Claude Code validates the installed version matches the constraint and provides a clear error message when it doesn't.
Evidence
Dependency version validation (search for "dependency-version-unsatisfied")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.