reconcile-backlog-vs-issues

Audit every gh #NNN reference in ai_docs/backlog.md against live GitHub Issue state and emit a 5-state triage report. Use when: chasing drift between backlog rows and Issues after merges, manual issue closures, label changes, or contributor inactivity; before a /backlog-sweep:plan run to surface zombie rows or stale reservations the planner shouldn't pick. Read-only — does not edit backlog.md or close Issues;…