# Architecture (https://jackin.tailrocks.com/internal/architecture/)



High-level module architecture for the jackin' codebase. This page is a stub — content will grow as the [Codebase Map](/reference/getting-oriented/codebase-map/) is expanded.

## Current structure [#current-structure]

The codebase is a tiered Cargo workspace. Every production module lives in a single-responsibility crate under `crates/`; the only binary is `crates/jackin/`. See the [Codebase Map](/reference/getting-oriented/codebase-map/#workspace-crate-structure) for the full tiered DAG and per-crate ownership contracts.