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## Description Use UUIDv7 for item IDs generated locally in `codex-protocol`. This covers user messages, agent messages, hook prompts, and context compaction items. These IDs are generated once and carried through item lifecycle, so this only changes the UUID version. It keeps generated item IDs consistent with thread and turn IDs.
codex-protocol
This crate defines the "types" for the protocol used by Codex CLI, which includes both "internal types" for communication between codex-core and codex-tui, as well as "external types" used with codex app-server.
This crate should have minimal dependencies.
Ideally, we should avoid "material business logic" in this crate, as we can always introduce Ext-style traits to add functionality to types in other crates.