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pakrym-oai 5cc5f12efc Move item event mapping into app-server-protocol (#20299 )

## Why

Follow-up to #20291.

The v2 item-event-to-notification translation had been embedded in
`app-server/src/bespoke_event_handling.rs`, which made it hard to reuse
anywhere else. This PR moves that stateless mapping into shared protocol
code so other entry points can produce the same `ServerNotification`
payloads without copying app-server logic.

That also lets `thread-manager-sample` demonstrate the same notification
surface that the app server exposes, instead of only printing the final
assistant message.

## What changed

- move `item_event_to_server_notification` into
`codex-app-server-protocol::protocol::event_mapping`
- keep the mapper tests next to the shared implementation in
`codex-app-server-protocol`
- re-export the mapper from `codex-core-api` so lightweight consumers
can use it without reaching into `app-server-protocol` directly
- simplify `app-server/src/bespoke_event_handling.rs` so it delegates
the stateless event-to-notification projection to the shared helper
- update `thread-manager-sample` to:
  - print mapped notifications as newline-delimited JSON
  - use the shared mapper through `codex-core-api`
- enable the default feature set so the sample exposes the normal tool
surface
- use a `read_only` permission profile so shell commands can run in the
sample without widening permissions

## Testing

- `cargo test -p codex-app-server-protocol`
- `cargo test -p codex-core-api`
- `cargo test -p codex-app-server bespoke_event_handling::tests`
- `cargo test -p codex-thread-manager-sample`
- `cargo run -p codex-thread-manager-sample -- "briefly explore the repo
with pwd and ls, then summarize it"`

5cc5f12efc · 2026-04-30 11:02:13 -07:00

History

src

Move item event mapping into app-server-protocol (#20299 )

2026-04-30 11:02:13 -07:00

BUILD.bazel

Add ThreadManager sample crate (#20141 )

2026-04-29 11:21:06 -07:00

Cargo.toml

Move item event mapping into app-server-protocol (#20299 )

2026-04-30 11:02:13 -07:00

README.md

Add codex-core public API listing (#20243 )

2026-04-29 22:58:08 +00:00

README.md

ThreadManager Sample

Small one-shot binary that starts a Codex thread with ThreadManager from codex-core-api, submits a single user turn, and prints the final assistant message.

cargo run -p codex-thread-manager-sample -- "Say hello"

Use --model to override the configured default model:

cargo run -p codex-thread-manager-sample -- --model gpt-5.2 "Say hello"

The prompt can also be piped through stdin:

printf 'Say hello\n' | cargo run -p codex-thread-manager-sample