AWS Diagram Agent Skill with Draw.io MCP

A GitHub Copilot Agent Skill that uses Draw.io MCP to automatically generate AWS architecture diagrams has been extended from its original Azure-only scope. The skill adds AWS-specific provider-aware logic including AWS4 icon support, icon availability checks, fallback mappings, and readability defaults like left-to-right flow and minimal crossing lines. Rather than treating AWS as a cosmetic add-on, the skill integrates AWS naming conventions and rendering assumptions to produce cleaner first drafts. Two example outputs are shown: a three-tier PaaS web app and an ECS Fargate multi-tier architecture. The workflow still expects engineers to refine the generated diagrams, but shifts effort from manual layout to architectural clarity.