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## Why A code-mode cell can outlive its turn. Nested tool calls dispatched during a later turn need the original step's tools and context, while approval handling must still work across that turn boundary. ## What changed - Retain each cell's originating `StepContext` for nested tool dispatch and cancel queued calls whose context has been released. - Keep MCP approval metadata available for the lifetime of the running invocation, keyed by server and call ID. - Apply Guardian denial accounting and interruption to the active turn, including reviews from an earlier cell. - Carry `turn_id` in legacy MCP begin/end events so history reconstruction and rollout migration assign late completions to their original turn. Preserve the current-turn fallback for older records without it. ## Testing Add regression coverage for originating tool selection across turns, callback and metadata cleanup, delayed MCP elicitation review, Guardian interruption of the active turn, and late MCP completion attribution with legacy compatibility. GitOrigin-RevId: 4533379aae6e4ecb4aabe5a25e4aca5d65385d76
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.