Audit and optimize auto-memory

Audit auto-memory for promotion candidates, stale entries, consolidation

After completing a major session or when MEMORY.md exceeds 150 lines and needs consolidation.

• · MEMORY.md file path

• · memory health metrics
• · promotion candidates list
• · stale entries report
• · consolidation groups

Project has auto-memory enabled (MEMORY.md exists in .claude/projects/*/memory/)

• · Memory directory not found
• · MEMORY.md has no entries
• · cross-reference file has been deleted

• · 200-line limit awareness
• · CLAUDE.md conflict detection
• · cross-project deduplication logic