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## Why Model overrides for `spawn_agent` must be compatible with the multi-agent backend used by the current turn. ## What changed - Carry each model's multi-agent backend metadata into `ModelPreset`. - Filter the advertised `spawn_agent` model overrides for multi-agent v2 and reject overrides assigned to another backend. - Limit error suggestions to picker-visible, backend-compatible models. ## Testing Added coverage for hiding incompatible models from the tool description and rejecting them during spawn validation. GitOrigin-RevId: 22c12aba67df46e9743a74f019b72a1b8b76b308
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.