Archyl is an AI-powered platform for living software architecture documentation built around the C4 model that uses AI to analyze your codebase, automatically discover components and relationships, generate interactive C4 diagrams at every level, and detect drift so documentation stays aligned with reality; it expresses architecture as code (YAML DSL) to integrate with Git workflows for versioning, reviews, and collaboration, making it ideal for architects, tech leads, and dev teams who want faster, more accurate, and reviewable architecture docs rather than manual, stale diagrams.