Description

Add an impact analysis feature powered by AI that traverses the registry graph to answer "what breaks if I change/remove X?" questions. Given an element, it walks upstream and downstream relationships to build a blast radius report showing all affected elements across layers and domains.

Acceptance Criteria

• Accessible via chat ("what's the impact of changing Payment Gateway?") or a dedicated UI button on element detail pages
• Traverses relationships in both directions (upstream consumers, downstream dependencies)
• Groups affected elements by layer and domain
• Highlights cross-domain impacts (elements outside the source domain)
• Shows relationship chain (A → B → C) so users understand the path
• Visual blast radius overlay on the domain context map graph

Out of Scope

• Runtime/production impact analysis (this is architecture-level only)
• Automated risk scoring (future enhancement)