codex-controller-loop/.agent/controllers/module-mosaic/goal.md

Goal

Refactor the oversized Rust modules in this repository into smaller, focused directory modules without changing runtime behavior, controller flow, or persisted controller file formats.

Prioritize src/ui/mod.rs, src/model.rs, src/process.rs, src/storage/toon.rs, src/app/workspace_input.rs, and src/app/runtime.rs. End with thin mod.rs facades, clear ownership boundaries, stable public APIs or pub use reexports where they reduce churn, colocated tests for the moved logic, and a green Rust verification pass.