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## What changed - Parse optional `usage_metadata.amount` values from Responses API completion events without converting their string representation. - Propagate the metadata through SSE and WebSocket streams, regular turns, and remote compaction. - Add `usageMetadata` to the app-server `rawResponse/completed` notification and its generated schemas. ## Testing - Cover missing, null, zero, and high-precision amounts, including completion events emitted during compaction. GitOrigin-RevId: b16d81e8350eab0dc7ff613d0dc9dbed73041713
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.