What problem does it solve? Understanding how an unfamiliar subsystem works requires hours of manual code reading, and answering placement or layering questions demands architectural context most engineers lack when onboarding onto a new area. ## Core Features & Use Cases - Explain Mode: Answers "how does X work" questions by spawning parallel read-only explorer agents that trace code paths, then synthesizing their findings into a structured architectural explanation with overview, key concepts, flow, file map, and gotchas. - Critique Mode: After explaining, spawns multiple independent critic agents that evaluate the architecture against a rubric covering abstraction fit, data model, boundary discipline, evolution readiness, complexity, and consistency. - Lead Judgment: Categorizes critique findings into act-on, consider, noted, and dismissed buckets so architectural feedback is actionable rather than noisy. - Use Case: Ask "how does the rate limiter work?" and receive a senior-engineer-level walkthrough of the data model, request path, and enforcement points, with exact file references. ## Quick Start Ask the agent to explain how a specific subsystem or feature in your codebase works, optionally requesting an architectural critique.