"Codex, Arca, and Rust import policy"

Codex, Arca, and Rust import policy

Names

Name	Meaning
Codex	Product name for the persisted data API.
`VoxDb`	Stable Rust type for the database facade (`crates/vox-db`).
`Codex` (Rust)	Type alias for `VoxDb` in `vox_db` — same type.
Arca	Internal schema / CAS ownership in `vox-pm` (`CodeStore`). There is no `vox_arca` crate in this workspace.
`vox-codex`	Compatibility crate: `pub use vox_db::`. New code should depend on `vox-db`* directly.

Prefer vox_db::VoxDb (or vox_db::Codex alias) in signatures and new modules.
Do not introduce new dependencies on the vox-codex crate path unless bridging legacy tooling; migrate call sites to vox-db when touched.
Unwired CLI modules should import vox_pm:: / vox_db:: / vox_codex (shim) only — the historical vox_arca* crate names are not used in-tree. Staging crates (e.g. minimal vox-orchestrator) follow the same rule: do not link them from vox-cli until explicitly decided.