inspect_keyed_archive runs on every host, but its remediation for an
ordinary property list pointed to inspect_plist, which only macOS
supports. On Linux that sent callers to a workflow the capability layer
rejects.
The domain error now names what the file is. The artifact reader picks
the remediation from the provider's host: inspect_plist on macOS, and
elsewhere the selection of an NSKeyedArchiver archive, with a note that
inspect_plist requires macOS. decode_interface_builder, which is
portable, stays the NIBArchive remediation.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>