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Owen Lin b9b934e99b refactor(protocol): map canonical tool items to legacy events (#31296 )

## Description

This PR adds legacy `EventMsg` mappings for the `TurnItem` types
introduced in [#30282](https://github.com/openai/codex/pull/30282):

- `CommandExecution`
- `DynamicToolCall`
- `CollabAgentToolCall`
- `SubAgentActivity`

When their producers move to canonical `ItemStarted` / `ItemCompleted`,
raw core event consumers can still receive the existing begin/end-style
events. The canonical item lifecycle remains the live source of truth.

We also record the mapped legacy events in rollout trace so the producer
migration preserves the existing tool-runtime trace entries.

## Why

This is the compatibility layer for the follow-up producer migrations.
Splitting it out first keeps each producer PR small and keeps the legacy
mapping in one place.

## What changed

- Added `TurnItem` → legacy `EventMsg` mappings in
`protocol/src/legacy_events.rs`.
- Added the command execution status conversion used by the exec
mapping.
- Added focused coverage for command execution and dynamic tool
mappings.

2026-07-06 20:41:57 -07:00

src

refactor(protocol): map canonical tool items to legacy events (#31296 )

2026-07-06 20:41:57 -07:00

BUILD.bazel

build: run buildifier from just fmt (#28125 )

2026-06-13 21:43:39 -07:00

Cargo.toml

[codex] exec-server honors remote environment cwd and shell (#28122 )

2026-06-14 06:07:46 +00:00

README.md

fix: separate codex mcp into codex mcp-server and codex app-server (#4471 )

2025-09-30 07:06:18 +00:00

README.md

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.