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## What changed - Add an optional `toolOutput` to `turn/start` for starting or steering a turn with a named function-call output instead of user input. - Emit standalone outputs as `functionCallOutput` thread items, persist them in durable history, and include them in resumed threads. - Validate that tool outputs have a name, are not combined with nonempty `input`, satisfy the text-size limit, and use supported image URLs. ## Testing - Cover standalone tool-output notifications, model input, and resumed history in both legacy and paginated history modes. - Cover the text-size limit for structured tool output. GitOrigin-RevId: a1eeec7b9b7de67b1a1c5e829a54552b85ec118b
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.