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 installs can be refused by command-source policy
You'll notice
Useful2Signal2
Plugins
Plugin installs refused by command-source policy now report that reason instead of a generic failure.
What's wrong with this entry?
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What
Installing a marketplace plugin can now fail with a command-source-refused reason, which is passed back to the caller instead of being flattened into a generic "Failed to install", and is logged at info level rather than error.
Details
The plugin update summary now counts policy-blocked, pinned, deferred and failed plugins separately.
Evidence
command-source-refused
Strings lifted out of the shipped bundle, so the claim above can be checked against them.