How It All Fits

This page is the architecture decision map after auditing the source. It replaces the older explanation that treated `LIM-RPS`, SAN, and diffusion as one completed trained stack. The system is built around an intermediate body state, not around raw sensors and not around a single opaque model. This is still the right direction. The correction is that the current source does not prove one fully trained, end-to-end architecture. It proves several connected runtime pieces with different maturity levels. - `EchelonCore`: Rust real-time brain state and latent/lexicon generation. - `LatentUpdater`: selectable update backend inside `cc-brain`. - `SANPipeline`: Rust neural pipeline exposed through FFI and wrapped by `SANService`. - `DiffusionService`: Swift/CoreML generation service with phone hub, CoreML, and rule-based fallback paths. - `ClaimBridge`: Rust/Swift bridge from dynamics to N'Ko-style motion claims. - MotionMix BodyTruth: shared body-state bus being stabilized for Mac4/K11. The docs should say "these layers coordinate" rather than "one model learned the whole body-to-music system."