What problem does it solve? Understanding how systems connect and where failures cascade is difficult when architecture knowledge is scattered across docs and tribal knowledge. This Skill maps upstream and downstream dependencies into a visual diagram so you can assess blast radius before making changes. ## Core Features & Use Cases - Dependency Mapping: Extracts upstream and downstream relationships from architecture docs, ADRs, and integration notes, capturing protocol, pattern, and data flow for each connection. - Risk Analysis: Identifies critical paths, single points of failure, circular dependencies, and high fan-in/fan-out hub systems. - Colour-Coded Mermaid Diagrams: Produces flowcharts with nodes styled by criticality (critical, high, medium, low, external) and edges showing sync vs. async patterns. - Use Case: Before modifying OrderService, run the skill to see which systems depend on it, discover that PaymentGateway has no failover, and get recommendations to add redundancy before deploying changes. ## Quick Start Ask the AI to generate a dependency graph for OrderService showing both upstream and downstream systems two hops deep.
