The certified-archive admission gate treated any declared certificate it could
not resolve as an untrusted archive and rejected the install with
CERTIFIED_PLUGIN_OSS_FORCE_REQUIRED. OSS ships an empty
plugin.certification.trusted_public_keys ring and the marketplace signs every
package with its own issuer key, so all certified marketplace packages (for
example langbot-team/RunnerDemo and langbot-team/LocalAgent) failed at the
'validating plugin package' step before artifact storage.
Admission now distinguishes an unresolvable declaration from a configured trust
decision that fails:
- record certificate_id only when the key_id is actually present in the
configured ring, so an empty ring yields an unresolvable declaration;
- OSS degrades an unresolvable declaration to the existing oss_dev dedicated
profile with CERTIFIED_PLUGIN_OSS_UNTRUSTED_DEDICATED instead of blocking;
- a resolvable declaration that still fails keeps requiring the explicit
administrator force (CERTIFIED_PLUGIN_OSS_FORCE_REQUIRED);
- Cloud stays fail-closed and rejects before storage.
No shared-runtime privilege is granted when the issuer is not trusted, so this
withholds isolation rather than escalating it.