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 manifest errors carry a machine-readable class
Under the hood
Useful1Signal1
Plugins
Plugin manifest errors now carry a code, so an invalid manifest is no longer reported as unverified identity.
What's wrong with this entry?
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What
Manifest failures now attach one of manifest_read_failed, manifest_json_invalid or manifest_schema_invalid, and the plugin eval advisory pass reads that back to report manifest_invalid instead of lumping the case in with identity_unverified.
Evidence
manifest_schema_invalid
Strings lifted out of the shipped bundle, so the claim above can be checked against them.