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+# Sync State
+
+Tracked health reports from PC and VPS sync scripts.
+
+Files:
+
+- `heartbeat-pc.json`: last successful PC sync-script heartbeat.
+- `heartbeat-vps.json`: last successful VPS sync-script heartbeat.
+- `error-pc.md`: PC sync-script error report, if present.
+- `error-vps.md`: VPS sync-script error report, if present.
+
+These files must not contain secrets. They exist so CORRECTION can detect stale communication without direct terminal access.
+
+Health thresholds:
+
+- Warning: peer heartbeat older than 2 minutes.
+- Blocked: peer heartbeat older than 5 minutes.
+- Blocked: any `error-*.md` file exists.
+- Blocked: either side reports persistent `ahead`, `behind`, or dirty state that prevents evidence visibility.