vault-sync

Use when you need to validate the Meta-Vault's Markdown frontmatter and wiki-link integrity before closing a session or after vault edits. Runs as a hard gate at session-end Phase 1 — blocks close if any .md file fails the Zod frontmatter schema or has dangling [[wiki-links]]. Supports three modes: hard (blocks on errors), warn (reports without blocking), off (skip). Reads vault-sync.* from Session Config; respects…