# Implementation Plan: Cross-tenant Compare and Promotion

**Date**: 2026-01-07  
**Spec**: `specs/043-cross-tenant-compare-and-promotion/spec.md`

## Summary

Introduce read-only cross-tenant comparison views; optionally add promotion with strong safety gates.

## Dependencies

- Inventory core + UI (Specs 040–041)
- Strong authorization model for multi-tenant access

## Deliverables

- Tenant selection + comparison view
- Safe diff output and export
- (Optional) gated promotion workflow

## Risks

- Data leakage across tenants
- Over-scoping promotion beyond safe MVP