inspect_artifact nested the complete inventory Evidence and then restated every artifact node and occurrence as an observation and every edge as a derived relationship. No caller reads those copies; comparison and tests use the nested inventory Evidence. On Transmission.app the result shrinks from 2.46 MB to 1.10 MB. Observations keep the root manifest and integrity findings. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>