Merge branch 'main' of github.com:openai/codex into dev/mzeng/plugin_suggesitons

codex-rs/Cargo.lock

@@ -1462,6 +1462,7 @@ dependencies = [
  "tracing-opentelemetry",
  "tracing-subscriber",
  "uuid",
+ "walkdir",
  "wiremock",
 ]
 
@@ -1475,12 +1476,15 @@ dependencies = [
  "codex-core",
  "codex-feedback",
  "codex-protocol",
+ "futures",
  "pretty_assertions",
  "serde",
  "serde_json",
  "tokio",
+ "tokio-tungstenite",
  "toml 0.9.11+spec-1.1.0",
  "tracing",
+ "url",
 ]
 
 [[package]]
@@ -1659,6 +1663,7 @@ dependencies = [
  "codex-state",
  "codex-stdio-to-uds",
  "codex-tui",
+ "codex-tui-app-server",
  "codex-utils-cargo-bin",
  "codex-utils-cli",
  "codex-windows-sandbox",
@@ -2495,6 +2500,7 @@ dependencies = [
  "chrono",
  "clap",
  "codex-ansi-escape",
+ "codex-app-server-client",
  "codex-app-server-protocol",
  "codex-arg0",
  "codex-backend-client",
@@ -2510,6 +2516,97 @@ dependencies = [
  "codex-protocol",
  "codex-shell-command",
  "codex-state",
+ "codex-tui-app-server",
+ "codex-utils-absolute-path",
+ "codex-utils-approval-presets",
+ "codex-utils-cargo-bin",
+ "codex-utils-cli",
+ "codex-utils-elapsed",
+ "codex-utils-fuzzy-match",
+ "codex-utils-oss",
+ "codex-utils-pty",
+ "codex-utils-sandbox-summary",
+ "codex-utils-sleep-inhibitor",
+ "codex-utils-string",
+ "codex-windows-sandbox",
+ "color-eyre",
+ "cpal",
+ "crossterm",
+ "derive_more 2.1.1",
+ "diffy",
+ "dirs",
+ "dunce",
+ "hound",
+ "image",
+ "insta",
+ "itertools 0.14.0",
+ "lazy_static",
+ "libc",
+ "pathdiff",
+ "pretty_assertions",
+ "pulldown-cmark",
+ "rand 0.9.2",
+ "ratatui",
+ "ratatui-macros",
+ "regex-lite",
+ "reqwest",
+ "rmcp",
+ "serde",
+ "serde_json",
+ "serial_test",
+ "shlex",
+ "strum 0.27.2",
+ "strum_macros 0.28.0",
+ "supports-color 3.0.2",
+ "syntect",
+ "tempfile",
+ "textwrap 0.16.2",
+ "thiserror 2.0.18",
+ "tokio",
+ "tokio-stream",
+ "tokio-util",
+ "toml 0.9.11+spec-1.1.0",
+ "tracing",
+ "tracing-appender",
+ "tracing-subscriber",
+ "two-face",
+ "unicode-segmentation",
+ "unicode-width 0.2.1",
+ "url",
+ "uuid",
+ "vt100",
+ "webbrowser",
+ "which",
+ "windows-sys 0.52.0",
+ "winsplit",
+]
+
+[[package]]
+name = "codex-tui-app-server"
+version = "0.0.0"
+dependencies = [
+ "anyhow",
+ "arboard",
+ "assert_matches",
+ "base64 0.22.1",
+ "chrono",
+ "clap",
+ "codex-ansi-escape",
+ "codex-app-server-client",
+ "codex-app-server-protocol",
+ "codex-arg0",
+ "codex-chatgpt",
+ "codex-cli",
+ "codex-client",
+ "codex-cloud-requirements",
+ "codex-core",
+ "codex-feedback",
+ "codex-file-search",
+ "codex-login",
+ "codex-otel",
+ "codex-protocol",
+ "codex-shell-command",
+ "codex-state",
  "codex-utils-absolute-path",
  "codex-utils-approval-presets",
  "codex-utils-cargo-bin",
@@ -2749,6 +2846,7 @@ dependencies = [
  "chrono",
  "codex-protocol",
  "codex-utils-absolute-path",
+ "codex-utils-pty",
  "codex-utils-string",
  "dirs-next",
  "dunce",
@@ -2757,6 +2855,7 @@ dependencies = [
  "serde",
  "serde_json",
  "tempfile",
+ "tokio",
  "windows 0.58.0",
  "windows-sys 0.52.0",
  "winres",

codex-rs/Cargo.toml

@@ -42,6 +42,7 @@ members = [
     "stdio-to-uds",
     "otel",
     "tui",
+    "tui_app_server",
     "utils/absolute-path",
     "utils/cargo-bin",
     "utils/git",
@@ -129,6 +130,7 @@ codex-state = { path = "state" }
 codex-stdio-to-uds = { path = "stdio-to-uds" }
 codex-test-macros = { path = "test-macros" }
 codex-tui = { path = "tui" }
+codex-tui-app-server = { path = "tui_app_server" }
 codex-utils-absolute-path = { path = "utils/absolute-path" }
 codex-utils-approval-presets = { path = "utils/approval-presets" }
 codex-utils-cache = { path = "utils/cache" }

codex-rs/app-server-client/Cargo.toml

@@ -18,11 +18,14 @@ codex-arg0 = { workspace = true }
 codex-core = { workspace = true }
 codex-feedback = { workspace = true }
 codex-protocol = { workspace = true }
+futures = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
 tokio = { workspace = true, features = ["sync", "time", "rt"] }
+tokio-tungstenite = { workspace = true }
 toml = { workspace = true }
 tracing = { workspace = true }
+url = { workspace = true }
 
 [dev-dependencies]
 pretty_assertions = { workspace = true }

codex-rs/app-server-client/src/lib.rs

@@ -15,6 +15,8 @@
 //! bridging async `mpsc` channels on both sides. Queues are bounded so overload
 //! surfaces as channel-full errors rather than unbounded memory growth.
 
+mod remote;
+
 use std::error::Error;
 use std::fmt;
 use std::io::Error as IoError;
@@ -33,12 +35,18 @@ use codex_app_server_protocol::ConfigWarningNotification;
 use codex_app_server_protocol::InitializeCapabilities;
 use codex_app_server_protocol::InitializeParams;
 use codex_app_server_protocol::JSONRPCErrorError;
+use codex_app_server_protocol::JSONRPCNotification;
 use codex_app_server_protocol::RequestId;
 use codex_app_server_protocol::Result as JsonRpcResult;
+use codex_app_server_protocol::ServerNotification;
+use codex_app_server_protocol::ServerRequest;
 use codex_arg0::Arg0DispatchPaths;
+use codex_core::AuthManager;
+use codex_core::ThreadManager;
 use codex_core::config::Config;
 use codex_core::config_loader::CloudRequirementsLoader;
 use codex_core::config_loader::LoaderOverrides;
+use codex_core::models_manager::collaboration_mode_presets::CollaborationModesConfig;
 use codex_feedback::CodexFeedback;
 use codex_protocol::protocol::SessionSource;
 use serde::de::DeserializeOwned;
@@ -48,6 +56,9 @@ use tokio::time::timeout;
 use toml::Value as TomlValue;
 use tracing::warn;
 
+pub use crate::remote::RemoteAppServerClient;
+pub use crate::remote::RemoteAppServerConnectArgs;
+
 const SHUTDOWN_TIMEOUT: Duration = Duration::from_secs(5);
 
 /// Raw app-server request result for typed in-process requests.
@@ -57,6 +68,30 @@ const SHUTDOWN_TIMEOUT: Duration = Duration::from_secs(5);
 /// `MessageProcessor` continues to produce that shape internally.
 pub type RequestResult = std::result::Result<JsonRpcResult, JSONRPCErrorError>;
 
+#[derive(Debug, Clone)]
+pub enum AppServerEvent {
+    Lagged { skipped: usize },
+    ServerNotification(ServerNotification),
+    LegacyNotification(JSONRPCNotification),
+    ServerRequest(ServerRequest),
+    Disconnected { message: String },
+}
+
+impl From<InProcessServerEvent> for AppServerEvent {
+    fn from(value: InProcessServerEvent) -> Self {
+        match value {
+            InProcessServerEvent::Lagged { skipped } => Self::Lagged { skipped },
+            InProcessServerEvent::ServerNotification(notification) => {
+                Self::ServerNotification(notification)
+            }
+            InProcessServerEvent::LegacyNotification(notification) => {
+                Self::LegacyNotification(notification)
+            }
+            InProcessServerEvent::ServerRequest(request) => Self::ServerRequest(request),
+        }
+    }
+}
+
 fn event_requires_delivery(event: &InProcessServerEvent) -> bool {
     // These terminal events drive surface shutdown/completion state. Dropping
     // them under backpressure can leave exec/TUI waiting forever even though
@@ -123,6 +158,16 @@ impl Error for TypedRequestError {
     }
 }
 
+#[derive(Clone)]
+struct SharedCoreManagers {
+    // Temporary bootstrap escape hatch for embedders that still need direct
+    // core handles during the in-process app-server migration. Once TUI/exec
+    // stop depending on direct manager access, remove this wrapper and keep
+    // manager ownership entirely inside the app-server runtime.
+    auth_manager: Arc<AuthManager>,
+    thread_manager: Arc<ThreadManager>,
+}
+
 #[derive(Clone)]
 pub struct InProcessClientStartArgs {
     /// Resolved argv0 dispatch paths used by command execution internals.
@@ -156,6 +201,30 @@ pub struct InProcessClientStartArgs {
 }
 
 impl InProcessClientStartArgs {
+    fn shared_core_managers(&self) -> SharedCoreManagers {
+        let auth_manager = AuthManager::shared(
+            self.config.codex_home.clone(),
+            self.enable_codex_api_key_env,
+            self.config.cli_auth_credentials_store_mode,
+        );
+        let thread_manager = Arc::new(ThreadManager::new(
+            self.config.as_ref(),
+            auth_manager.clone(),
+            self.session_source.clone(),
+            CollaborationModesConfig {
+                default_mode_request_user_input: self
+                    .config
+                    .features
+                    .enabled(codex_core::features::Feature::DefaultModeRequestUserInput),
+            },
+        ));
+
+        SharedCoreManagers {
+            auth_manager,
+            thread_manager,
+        }
+    }
+
     /// Builds initialize params from caller-provided metadata.
     pub fn initialize_params(&self) -> InitializeParams {
         let capabilities = InitializeCapabilities {
@@ -177,7 +246,7 @@ impl InProcessClientStartArgs {
         }
     }
 
-    fn into_runtime_start_args(self) -> InProcessStartArgs {
+    fn into_runtime_start_args(self, shared_core: &SharedCoreManagers) -> InProcessStartArgs {
         let initialize = self.initialize_params();
         InProcessStartArgs {
             arg0_paths: self.arg0_paths,
@@ -185,6 +254,8 @@ impl InProcessClientStartArgs {
             cli_overrides: self.cli_overrides,
             loader_overrides: self.loader_overrides,
             cloud_requirements: self.cloud_requirements,
+            auth_manager: Some(shared_core.auth_manager.clone()),
+            thread_manager: Some(shared_core.thread_manager.clone()),
             feedback: self.feedback,
             config_warnings: self.config_warnings,
             session_source: self.session_source,
@@ -238,6 +309,24 @@ pub struct InProcessAppServerClient {
     command_tx: mpsc::Sender<ClientCommand>,
     event_rx: mpsc::Receiver<InProcessServerEvent>,
     worker_handle: tokio::task::JoinHandle<()>,
+    auth_manager: Arc<AuthManager>,
+    thread_manager: Arc<ThreadManager>,
+}
+
+#[derive(Clone)]
+pub struct InProcessAppServerRequestHandle {
+    command_tx: mpsc::Sender<ClientCommand>,
+}
+
+#[derive(Clone)]
+pub enum AppServerRequestHandle {
+    InProcess(InProcessAppServerRequestHandle),
+    Remote(crate::remote::RemoteAppServerRequestHandle),
+}
+
+pub enum AppServerClient {
+    InProcess(InProcessAppServerClient),
+    Remote(RemoteAppServerClient),
 }
 
 impl InProcessAppServerClient {
@@ -248,8 +337,9 @@ impl InProcessAppServerClient {
     /// with overload error instead of being silently dropped.
     pub async fn start(args: InProcessClientStartArgs) -> IoResult<Self> {
         let channel_capacity = args.channel_capacity.max(1);
+        let shared_core = args.shared_core_managers();
         let mut handle =
-            codex_app_server::in_process::start(args.into_runtime_start_args()).await?;
+            codex_app_server::in_process::start(args.into_runtime_start_args(&shared_core)).await?;
         let request_sender = handle.sender();
         let (command_tx, mut command_rx) = mpsc::channel::<ClientCommand>(channel_capacity);
         let (event_tx, event_rx) = mpsc::channel::<InProcessServerEvent>(channel_capacity);
@@ -400,9 +490,27 @@ impl InProcessAppServerClient {
             command_tx,
             event_rx,
             worker_handle,
+            auth_manager: shared_core.auth_manager,
+            thread_manager: shared_core.thread_manager,
         })
     }
 
+    /// Temporary bootstrap escape hatch for embedders migrating toward RPC-only usage.
+    pub fn auth_manager(&self) -> Arc<AuthManager> {
+        self.auth_manager.clone()
+    }
+
+    /// Temporary bootstrap escape hatch for embedders migrating toward RPC-only usage.
+    pub fn thread_manager(&self) -> Arc<ThreadManager> {
+        self.thread_manager.clone()
+    }
+
+    pub fn request_handle(&self) -> InProcessAppServerRequestHandle {
+        InProcessAppServerRequestHandle {
+            command_tx: self.command_tx.clone(),
+        }
+    }
+
     /// Sends a typed client request and returns raw JSON-RPC result.
     ///
     /// Callers that expect a concrete response type should usually prefer
@@ -555,6 +663,8 @@ impl InProcessAppServerClient {
             command_tx,
             event_rx,
             worker_handle,
+            auth_manager: _,
+            thread_manager: _,
         } = self;
         let mut worker_handle = worker_handle;
         // Drop the caller-facing receiver before asking the worker to shut
@@ -585,9 +695,141 @@ impl InProcessAppServerClient {
     }
 }
 
+impl InProcessAppServerRequestHandle {
+    pub async fn request(&self, request: ClientRequest) -> IoResult<RequestResult> {
+        let (response_tx, response_rx) = oneshot::channel();
+        self.command_tx
+            .send(ClientCommand::Request {
+                request: Box::new(request),
+                response_tx,
+            })
+            .await
+            .map_err(|_| {
+                IoError::new(
+                    ErrorKind::BrokenPipe,
+                    "in-process app-server worker channel is closed",
+                )
+            })?;
+        response_rx.await.map_err(|_| {
+            IoError::new(
+                ErrorKind::BrokenPipe,
+                "in-process app-server request channel is closed",
+            )
+        })?
+    }
+
+    pub async fn request_typed<T>(&self, request: ClientRequest) -> Result<T, TypedRequestError>
+    where
+        T: DeserializeOwned,
+    {
+        let method = request_method_name(&request);
+        let response =
+            self.request(request)
+                .await
+                .map_err(|source| TypedRequestError::Transport {
+                    method: method.clone(),
+                    source,
+                })?;
+        let result = response.map_err(|source| TypedRequestError::Server {
+            method: method.clone(),
+            source,
+        })?;
+        serde_json::from_value(result)
+            .map_err(|source| TypedRequestError::Deserialize { method, source })
+    }
+}
+
+impl AppServerRequestHandle {
+    pub async fn request(&self, request: ClientRequest) -> IoResult<RequestResult> {
+        match self {
+            Self::InProcess(handle) => handle.request(request).await,
+            Self::Remote(handle) => handle.request(request).await,
+        }
+    }
+
+    pub async fn request_typed<T>(&self, request: ClientRequest) -> Result<T, TypedRequestError>
+    where
+        T: DeserializeOwned,
+    {
+        match self {
+            Self::InProcess(handle) => handle.request_typed(request).await,
+            Self::Remote(handle) => handle.request_typed(request).await,
+        }
+    }
+}
+
+impl AppServerClient {
+    pub async fn request(&self, request: ClientRequest) -> IoResult<RequestResult> {
+        match self {
+            Self::InProcess(client) => client.request(request).await,
+            Self::Remote(client) => client.request(request).await,
+        }
+    }
+
+    pub async fn request_typed<T>(&self, request: ClientRequest) -> Result<T, TypedRequestError>
+    where
+        T: DeserializeOwned,
+    {
+        match self {
+            Self::InProcess(client) => client.request_typed(request).await,
+            Self::Remote(client) => client.request_typed(request).await,
+        }
+    }
+
+    pub async fn notify(&self, notification: ClientNotification) -> IoResult<()> {
+        match self {
+            Self::InProcess(client) => client.notify(notification).await,
+            Self::Remote(client) => client.notify(notification).await,
+        }
+    }
+
+    pub async fn resolve_server_request(
+        &self,
+        request_id: RequestId,
+        result: JsonRpcResult,
+    ) -> IoResult<()> {
+        match self {
+            Self::InProcess(client) => client.resolve_server_request(request_id, result).await,
+            Self::Remote(client) => client.resolve_server_request(request_id, result).await,
+        }
+    }
+
+    pub async fn reject_server_request(
+        &self,
+        request_id: RequestId,
+        error: JSONRPCErrorError,
+    ) -> IoResult<()> {
+        match self {
+            Self::InProcess(client) => client.reject_server_request(request_id, error).await,
+            Self::Remote(client) => client.reject_server_request(request_id, error).await,
+        }
+    }
+
+    pub async fn next_event(&mut self) -> Option<AppServerEvent> {
+        match self {
+            Self::InProcess(client) => client.next_event().await.map(Into::into),
+            Self::Remote(client) => client.next_event().await,
+        }
+    }
+
+    pub async fn shutdown(self) -> IoResult<()> {
+        match self {
+            Self::InProcess(client) => client.shutdown().await,
+            Self::Remote(client) => client.shutdown().await,
+        }
+    }
+
+    pub fn request_handle(&self) -> AppServerRequestHandle {
+        match self {
+            Self::InProcess(client) => AppServerRequestHandle::InProcess(client.request_handle()),
+            Self::Remote(client) => AppServerRequestHandle::Remote(client.request_handle()),
+        }
+    }
+}
+
 /// Extracts the JSON-RPC method name for diagnostics without extending the
 /// protocol crate with in-process-only helpers.
-fn request_method_name(request: &ClientRequest) -> String {
+pub(crate) fn request_method_name(request: &ClientRequest) -> String {
     serde_json::to_value(request)
         .ok()
         .and_then(|value| {
@@ -602,14 +844,29 @@ fn request_method_name(request: &ClientRequest) -> String {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use codex_app_server_protocol::AccountUpdatedNotification;
     use codex_app_server_protocol::ConfigRequirementsReadResponse;
+    use codex_app_server_protocol::GetAccountResponse;
+    use codex_app_server_protocol::JSONRPCMessage;
+    use codex_app_server_protocol::JSONRPCRequest;
+    use codex_app_server_protocol::JSONRPCResponse;
+    use codex_app_server_protocol::ServerNotification;
     use codex_app_server_protocol::SessionSource as ApiSessionSource;
     use codex_app_server_protocol::ThreadStartParams;
     use codex_app_server_protocol::ThreadStartResponse;
+    use codex_app_server_protocol::ToolRequestUserInputParams;
+    use codex_app_server_protocol::ToolRequestUserInputQuestion;
+    use codex_core::AuthManager;
+    use codex_core::ThreadManager;
     use codex_core::config::ConfigBuilder;
+    use futures::SinkExt;
+    use futures::StreamExt;
     use pretty_assertions::assert_eq;
+    use tokio::net::TcpListener;
     use tokio::time::Duration;
     use tokio::time::timeout;
+    use tokio_tungstenite::accept_async;
+    use tokio_tungstenite::tungstenite::Message;
 
     async fn build_test_config() -> Config {
         match ConfigBuilder::default().build().await {
@@ -647,6 +904,97 @@ mod tests {
         start_test_client_with_capacity(session_source, DEFAULT_IN_PROCESS_CHANNEL_CAPACITY).await
     }
 
+    async fn start_test_remote_server<F, Fut>(handler: F) -> String
+    where
+        F: FnOnce(tokio_tungstenite::WebSocketStream<tokio::net::TcpStream>) -> Fut
+            + Send
+            + 'static,
+        Fut: std::future::Future<Output = ()> + Send + 'static,
+    {
+        let listener = TcpListener::bind("127.0.0.1:0")
+            .await
+            .expect("listener should bind");
+        let addr = listener.local_addr().expect("listener address");
+        tokio::spawn(async move {
+            let (stream, _) = listener.accept().await.expect("accept should succeed");
+            let websocket = accept_async(stream)
+                .await
+                .expect("websocket upgrade should succeed");
+            handler(websocket).await;
+        });
+        format!("ws://{addr}")
+    }
+
+    async fn expect_remote_initialize(
+        websocket: &mut tokio_tungstenite::WebSocketStream<tokio::net::TcpStream>,
+    ) {
+        let JSONRPCMessage::Request(request) = read_websocket_message(websocket).await else {
+            panic!("expected initialize request");
+        };
+        assert_eq!(request.method, "initialize");
+        write_websocket_message(
+            websocket,
+            JSONRPCMessage::Response(JSONRPCResponse {
+                id: request.id,
+                result: serde_json::json!({}),
+            }),
+        )
+        .await;
+
+        let JSONRPCMessage::Notification(notification) = read_websocket_message(websocket).await
+        else {
+            panic!("expected initialized notification");
+        };
+        assert_eq!(notification.method, "initialized");
+    }
+
+    async fn read_websocket_message(
+        websocket: &mut tokio_tungstenite::WebSocketStream<tokio::net::TcpStream>,
+    ) -> JSONRPCMessage {
+        loop {
+            let frame = websocket
+                .next()
+                .await
+                .expect("frame should be available")
+                .expect("frame should decode");
+            match frame {
+                Message::Text(text) => {
+                    return serde_json::from_str::<JSONRPCMessage>(&text)
+                        .expect("text frame should be valid JSON-RPC");
+                }
+                Message::Binary(_) | Message::Ping(_) | Message::Pong(_) | Message::Frame(_) => {
+                    continue;
+                }
+                Message::Close(_) => panic!("unexpected close frame"),
+            }
+        }
+    }
+
+    async fn write_websocket_message(
+        websocket: &mut tokio_tungstenite::WebSocketStream<tokio::net::TcpStream>,
+        message: JSONRPCMessage,
+    ) {
+        websocket
+            .send(Message::Text(
+                serde_json::to_string(&message)
+                    .expect("message should serialize")
+                    .into(),
+            ))
+            .await
+            .expect("message should send");
+    }
+
+    fn test_remote_connect_args(websocket_url: String) -> RemoteAppServerConnectArgs {
+        RemoteAppServerConnectArgs {
+            websocket_url,
+            client_name: "codex-app-server-client-test".to_string(),
+            client_version: "0.0.0-test".to_string(),
+            experimental_api: true,
+            opt_out_notification_methods: Vec::new(),
+            channel_capacity: 8,
+        }
+    }
+
     #[tokio::test]
     async fn typed_request_roundtrip_works() {
         let client = start_test_client(SessionSource::Exec).await;
@@ -702,6 +1050,35 @@ mod tests {
         }
     }
 
+    #[tokio::test]
+    async fn shared_thread_manager_tracks_threads_started_via_app_server() {
+        let client = start_test_client(SessionSource::Cli).await;
+
+        let response: ThreadStartResponse = client
+            .request_typed(ClientRequest::ThreadStart {
+                request_id: RequestId::Integer(3),
+                params: ThreadStartParams {
+                    ephemeral: Some(true),
+                    ..ThreadStartParams::default()
+                },
+            })
+            .await
+            .expect("thread/start should succeed");
+        let created_thread_id = codex_protocol::ThreadId::from_string(&response.thread.id)
+            .expect("thread id should parse");
+        timeout(
+            Duration::from_secs(2),
+            client.thread_manager().get_thread(created_thread_id),
+        )
+        .await
+        .expect("timed out waiting for retained thread manager to observe started thread")
+        .expect("started thread should be visible through the shared thread manager");
+        let thread_ids = client.thread_manager().list_thread_ids().await;
+        assert!(thread_ids.contains(&created_thread_id));
+
+        client.shutdown().await.expect("shutdown should complete");
+    }
+
     #[tokio::test]
     async fn tiny_channel_capacity_still_supports_request_roundtrip() {
         let client = start_test_client_with_capacity(SessionSource::Exec, 1).await;
@@ -715,6 +1092,354 @@ mod tests {
         client.shutdown().await.expect("shutdown should complete");
     }
 
+    #[tokio::test]
+    async fn remote_typed_request_roundtrip_works() {
+        let websocket_url = start_test_remote_server(|mut websocket| async move {
+            expect_remote_initialize(&mut websocket).await;
+            let JSONRPCMessage::Request(request) = read_websocket_message(&mut websocket).await
+            else {
+                panic!("expected account/read request");
+            };
+            assert_eq!(request.method, "account/read");
+            write_websocket_message(
+                &mut websocket,
+                JSONRPCMessage::Response(JSONRPCResponse {
+                    id: request.id,
+                    result: serde_json::to_value(GetAccountResponse {
+                        account: None,
+                        requires_openai_auth: false,
+                    })
+                    .expect("response should serialize"),
+                }),
+            )
+            .await;
+        })
+        .await;
+        let client = RemoteAppServerClient::connect(test_remote_connect_args(websocket_url))
+            .await
+            .expect("remote client should connect");
+
+        let response: GetAccountResponse = client
+            .request_typed(ClientRequest::GetAccount {
+                request_id: RequestId::Integer(1),
+                params: codex_app_server_protocol::GetAccountParams {
+                    refresh_token: false,
+                },
+            })
+            .await
+            .expect("typed request should succeed");
+        assert_eq!(response.account, None);
+
+        client.shutdown().await.expect("shutdown should complete");
+    }
+
+    #[tokio::test]
+    async fn remote_duplicate_request_id_keeps_original_waiter() {
+        let (first_request_seen_tx, first_request_seen_rx) = tokio::sync::oneshot::channel();
+        let websocket_url = start_test_remote_server(|mut websocket| async move {
+            expect_remote_initialize(&mut websocket).await;
+            let JSONRPCMessage::Request(request) = read_websocket_message(&mut websocket).await
+            else {
+                panic!("expected account/read request");
+            };
+            assert_eq!(request.method, "account/read");
+            first_request_seen_tx
+                .send(request.id.clone())
+                .expect("request id should send");
+            assert!(
+                timeout(
+                    Duration::from_millis(100),
+                    read_websocket_message(&mut websocket)
+                )
+                .await
+                .is_err(),
+                "duplicate request should not be forwarded to the server"
+            );
+            write_websocket_message(
+                &mut websocket,
+                JSONRPCMessage::Response(JSONRPCResponse {
+                    id: request.id,
+                    result: serde_json::to_value(GetAccountResponse {
+                        account: None,
+                        requires_openai_auth: false,
+                    })
+                    .expect("response should serialize"),
+                }),
+            )
+            .await;
+            let _ = websocket.next().await;
+        })
+        .await;
+        let client = RemoteAppServerClient::connect(test_remote_connect_args(websocket_url))
+            .await
+            .expect("remote client should connect");
+        let first_request_handle = client.request_handle();
+        let second_request_handle = first_request_handle.clone();
+
+        let first_request = tokio::spawn(async move {
+            first_request_handle
+                .request_typed::<GetAccountResponse>(ClientRequest::GetAccount {
+                    request_id: RequestId::Integer(1),
+                    params: codex_app_server_protocol::GetAccountParams {
+                        refresh_token: false,
+                    },
+                })
+                .await
+        });
+
+        let first_request_id = first_request_seen_rx
+            .await
+            .expect("server should observe the first request");
+        assert_eq!(first_request_id, RequestId::Integer(1));
+
+        let second_err = second_request_handle
+            .request_typed::<GetAccountResponse>(ClientRequest::GetAccount {
+                request_id: RequestId::Integer(1),
+                params: codex_app_server_protocol::GetAccountParams {
+                    refresh_token: false,
+                },
+            })
+            .await
+            .expect_err("duplicate request id should be rejected");
+        assert_eq!(
+            second_err.to_string(),
+            "account/read transport error: duplicate remote app-server request id `1`"
+        );
+
+        let first_response = first_request
+            .await
+            .expect("first request task should join")
+            .expect("first request should succeed");
+        assert_eq!(
+            first_response,
+            GetAccountResponse {
+                account: None,
+                requires_openai_auth: false,
+            }
+        );
+
+        client.shutdown().await.expect("shutdown should complete");
+    }
+
+    #[tokio::test]
+    async fn remote_notifications_arrive_over_websocket() {
+        let websocket_url = start_test_remote_server(|mut websocket| async move {
+            expect_remote_initialize(&mut websocket).await;
+            write_websocket_message(
+                &mut websocket,
+                JSONRPCMessage::Notification(
+                    serde_json::from_value(
+                        serde_json::to_value(ServerNotification::AccountUpdated(
+                            AccountUpdatedNotification {
+                                auth_mode: None,
+                                plan_type: None,
+                            },
+                        ))
+                        .expect("notification should serialize"),
+                    )
+                    .expect("notification should convert to JSON-RPC"),
+                ),
+            )
+            .await;
+        })
+        .await;
+        let mut client = RemoteAppServerClient::connect(test_remote_connect_args(websocket_url))
+            .await
+            .expect("remote client should connect");
+
+        let event = client.next_event().await.expect("event should arrive");
+        assert!(matches!(
+            event,
+            AppServerEvent::ServerNotification(ServerNotification::AccountUpdated(_))
+        ));
+
+        client.shutdown().await.expect("shutdown should complete");
+    }
+
+    #[tokio::test]
+    async fn remote_server_request_resolution_roundtrip_works() {
+        let websocket_url = start_test_remote_server(|mut websocket| async move {
+            expect_remote_initialize(&mut websocket).await;
+            let request_id = RequestId::String("srv-1".to_string());
+            let server_request = JSONRPCRequest {
+                id: request_id.clone(),
+                method: "item/tool/requestUserInput".to_string(),
+                params: Some(
+                    serde_json::to_value(ToolRequestUserInputParams {
+                        thread_id: "thread-1".to_string(),
+                        turn_id: "turn-1".to_string(),
+                        item_id: "call-1".to_string(),
+                        questions: vec![ToolRequestUserInputQuestion {
+                            id: "question-1".to_string(),
+                            header: "Mode".to_string(),
+                            question: "Pick one".to_string(),
+                            is_other: false,
+                            is_secret: false,
+                            options: Some(vec![]),
+                        }],
+                    })
+                    .expect("params should serialize"),
+                ),
+                trace: None,
+            };
+            write_websocket_message(&mut websocket, JSONRPCMessage::Request(server_request)).await;
+
+            let JSONRPCMessage::Response(response) = read_websocket_message(&mut websocket).await
+            else {
+                panic!("expected server request response");
+            };
+            assert_eq!(response.id, request_id);
+        })
+        .await;
+        let mut client = RemoteAppServerClient::connect(test_remote_connect_args(websocket_url))
+            .await
+            .expect("remote client should connect");
+
+        let AppServerEvent::ServerRequest(request) = client
+            .next_event()
+            .await
+            .expect("request event should arrive")
+        else {
+            panic!("expected server request event");
+        };
+        client
+            .resolve_server_request(request.id().clone(), serde_json::json!({}))
+            .await
+            .expect("server request should resolve");
+
+        client.shutdown().await.expect("shutdown should complete");
+    }
+
+    #[tokio::test]
+    async fn remote_server_request_received_during_initialize_is_delivered() {
+        let websocket_url = start_test_remote_server(|mut websocket| async move {
+            let JSONRPCMessage::Request(request) = read_websocket_message(&mut websocket).await
+            else {
+                panic!("expected initialize request");
+            };
+            assert_eq!(request.method, "initialize");
+
+            let request_id = RequestId::String("srv-init".to_string());
+            write_websocket_message(
+                &mut websocket,
+                JSONRPCMessage::Request(JSONRPCRequest {
+                    id: request_id.clone(),
+                    method: "item/tool/requestUserInput".to_string(),
+                    params: Some(
+                        serde_json::to_value(ToolRequestUserInputParams {
+                            thread_id: "thread-1".to_string(),
+                            turn_id: "turn-1".to_string(),
+                            item_id: "call-1".to_string(),
+                            questions: vec![ToolRequestUserInputQuestion {
+                                id: "question-1".to_string(),
+                                header: "Mode".to_string(),
+                                question: "Pick one".to_string(),
+                                is_other: false,
+                                is_secret: false,
+                                options: Some(vec![]),
+                            }],
+                        })
+                        .expect("params should serialize"),
+                    ),
+                    trace: None,
+                }),
+            )
+            .await;
+            write_websocket_message(
+                &mut websocket,
+                JSONRPCMessage::Response(JSONRPCResponse {
+                    id: request.id,
+                    result: serde_json::json!({}),
+                }),
+            )
+            .await;
+
+            let JSONRPCMessage::Notification(notification) =
+                read_websocket_message(&mut websocket).await
+            else {
+                panic!("expected initialized notification");
+            };
+            assert_eq!(notification.method, "initialized");
+
+            let JSONRPCMessage::Response(response) = read_websocket_message(&mut websocket).await
+            else {
+                panic!("expected server request response");
+            };
+            assert_eq!(response.id, request_id);
+        })
+        .await;
+        let mut client = RemoteAppServerClient::connect(test_remote_connect_args(websocket_url))
+            .await
+            .expect("remote client should connect");
+
+        let AppServerEvent::ServerRequest(request) = client
+            .next_event()
+            .await
+            .expect("request event should arrive")
+        else {
+            panic!("expected server request event");
+        };
+        client
+            .resolve_server_request(request.id().clone(), serde_json::json!({}))
+            .await
+            .expect("server request should resolve");
+
+        client.shutdown().await.expect("shutdown should complete");
+    }
+
+    #[tokio::test]
+    async fn remote_unknown_server_request_is_rejected() {
+        let websocket_url = start_test_remote_server(|mut websocket| async move {
+            expect_remote_initialize(&mut websocket).await;
+            let request_id = RequestId::String("srv-unknown".to_string());
+            write_websocket_message(
+                &mut websocket,
+                JSONRPCMessage::Request(JSONRPCRequest {
+                    id: request_id.clone(),
+                    method: "thread/unknown".to_string(),
+                    params: None,
+                    trace: None,
+                }),
+            )
+            .await;
+
+            let JSONRPCMessage::Error(response) = read_websocket_message(&mut websocket).await
+            else {
+                panic!("expected JSON-RPC error response");
+            };
+            assert_eq!(response.id, request_id);
+            assert_eq!(response.error.code, -32601);
+            assert_eq!(
+                response.error.message,
+                "unsupported remote app-server request `thread/unknown`"
+            );
+        })
+        .await;
+        let client = RemoteAppServerClient::connect(test_remote_connect_args(websocket_url))
+            .await
+            .expect("remote client should connect");
+
+        client.shutdown().await.expect("shutdown should complete");
+    }
+
+    #[tokio::test]
+    async fn remote_disconnect_surfaces_as_event() {
+        let websocket_url = start_test_remote_server(|mut websocket| async move {
+            expect_remote_initialize(&mut websocket).await;
+            websocket.close(None).await.expect("close should succeed");
+        })
+        .await;
+        let mut client = RemoteAppServerClient::connect(test_remote_connect_args(websocket_url))
+            .await
+            .expect("remote client should connect");
+
+        let event = client
+            .next_event()
+            .await
+            .expect("disconnect event should arrive");
+        assert!(matches!(event, AppServerEvent::Disconnected { .. }));
+    }
+
     #[test]
     fn typed_request_error_exposes_sources() {
         let transport = TypedRequestError::Transport {
@@ -746,6 +1471,22 @@ mod tests {
         let (command_tx, _command_rx) = mpsc::channel(1);
         let (event_tx, event_rx) = mpsc::channel(1);
         let worker_handle = tokio::spawn(async {});
+        let config = build_test_config().await;
+        let auth_manager = AuthManager::shared(
+            config.codex_home.clone(),
+            false,
+            config.cli_auth_credentials_store_mode,
+        );
+        let thread_manager = Arc::new(ThreadManager::new(
+            &config,
+            auth_manager.clone(),
+            SessionSource::Exec,
+            CollaborationModesConfig {
+                default_mode_request_user_input: config
+                    .features
+                    .enabled(codex_core::features::Feature::DefaultModeRequestUserInput),
+            },
+        ));
         event_tx
             .send(InProcessServerEvent::Lagged { skipped: 3 })
             .await
@@ -756,6 +1497,8 @@ mod tests {
             command_tx,
             event_rx,
             worker_handle,
+            auth_manager,
+            thread_manager,
         };
 
         let event = timeout(Duration::from_secs(2), client.next_event())
@@ -798,4 +1541,30 @@ mod tests {
             skipped: 1
         }));
     }
+
+    #[tokio::test]
+    async fn accessors_expose_retained_shared_managers() {
+        let client = start_test_client(SessionSource::Cli).await;
+
+        assert!(
+            Arc::ptr_eq(&client.auth_manager(), &client.auth_manager()),
+            "auth_manager accessor should clone the retained shared manager"
+        );
+        assert!(
+            Arc::ptr_eq(&client.thread_manager(), &client.thread_manager()),
+            "thread_manager accessor should clone the retained shared manager"
+        );
+
+        client.shutdown().await.expect("shutdown should complete");
+    }
+
+    #[tokio::test]
+    async fn shutdown_completes_promptly_with_retained_shared_managers() {
+        let client = start_test_client(SessionSource::Cli).await;
+
+        timeout(Duration::from_secs(1), client.shutdown())
+            .await
+            .expect("shutdown should not wait for the 5s fallback timeout")
+            .expect("shutdown should complete");
+    }
 }

codex-rs/app-server-client/src/remote.rs

@@ -0,0 +1,911 @@
+/*
+This module implements the websocket-backed app-server client transport.
+
+It owns the remote connection lifecycle, including the initialize/initialized
+handshake, JSON-RPC request/response routing, server-request resolution, and
+notification streaming. The rest of the crate uses the same `AppServerEvent`
+surface for both in-process and remote transports, so callers such as
+`tui_app_server` can switch between them without changing their higher-level
+session logic.
+*/
+
+use std::collections::HashMap;
+use std::collections::VecDeque;
+use std::io::Error as IoError;
+use std::io::ErrorKind;
+use std::io::Result as IoResult;
+use std::time::Duration;
+
+use crate::AppServerEvent;
+use crate::RequestResult;
+use crate::SHUTDOWN_TIMEOUT;
+use crate::TypedRequestError;
+use crate::request_method_name;
+use codex_app_server_protocol::ClientInfo;
+use codex_app_server_protocol::ClientNotification;
+use codex_app_server_protocol::ClientRequest;
+use codex_app_server_protocol::InitializeCapabilities;
+use codex_app_server_protocol::InitializeParams;
+use codex_app_server_protocol::JSONRPCError;
+use codex_app_server_protocol::JSONRPCErrorError;
+use codex_app_server_protocol::JSONRPCMessage;
+use codex_app_server_protocol::JSONRPCNotification;
+use codex_app_server_protocol::JSONRPCRequest;
+use codex_app_server_protocol::JSONRPCResponse;
+use codex_app_server_protocol::RequestId;
+use codex_app_server_protocol::Result as JsonRpcResult;
+use codex_app_server_protocol::ServerNotification;
+use codex_app_server_protocol::ServerRequest;
+use futures::SinkExt;
+use futures::StreamExt;
+use serde::de::DeserializeOwned;
+use tokio::net::TcpStream;
+use tokio::sync::mpsc;
+use tokio::sync::oneshot;
+use tokio::time::timeout;
+use tokio_tungstenite::MaybeTlsStream;
+use tokio_tungstenite::WebSocketStream;
+use tokio_tungstenite::connect_async;
+use tokio_tungstenite::tungstenite::Message;
+use tracing::warn;
+use url::Url;
+
+const CONNECT_TIMEOUT: Duration = Duration::from_secs(10);
+const INITIALIZE_TIMEOUT: Duration = Duration::from_secs(10);
+
+#[derive(Debug, Clone)]
+pub struct RemoteAppServerConnectArgs {
+    pub websocket_url: String,
+    pub client_name: String,
+    pub client_version: String,
+    pub experimental_api: bool,
+    pub opt_out_notification_methods: Vec<String>,
+    pub channel_capacity: usize,
+}
+
+impl RemoteAppServerConnectArgs {
+    fn initialize_params(&self) -> InitializeParams {
+        let capabilities = InitializeCapabilities {
+            experimental_api: self.experimental_api,
+            opt_out_notification_methods: if self.opt_out_notification_methods.is_empty() {
+                None
+            } else {
+                Some(self.opt_out_notification_methods.clone())
+            },
+        };
+
+        InitializeParams {
+            client_info: ClientInfo {
+                name: self.client_name.clone(),
+                title: None,
+                version: self.client_version.clone(),
+            },
+            capabilities: Some(capabilities),
+        }
+    }
+}
+
+enum RemoteClientCommand {
+    Request {
+        request: Box<ClientRequest>,
+        response_tx: oneshot::Sender<IoResult<RequestResult>>,
+    },
+    Notify {
+        notification: ClientNotification,
+        response_tx: oneshot::Sender<IoResult<()>>,
+    },
+    ResolveServerRequest {
+        request_id: RequestId,
+        result: JsonRpcResult,
+        response_tx: oneshot::Sender<IoResult<()>>,
+    },
+    RejectServerRequest {
+        request_id: RequestId,
+        error: JSONRPCErrorError,
+        response_tx: oneshot::Sender<IoResult<()>>,
+    },
+    Shutdown {
+        response_tx: oneshot::Sender<IoResult<()>>,
+    },
+}
+
+pub struct RemoteAppServerClient {
+    command_tx: mpsc::Sender<RemoteClientCommand>,
+    event_rx: mpsc::Receiver<AppServerEvent>,
+    pending_events: VecDeque<AppServerEvent>,
+    worker_handle: tokio::task::JoinHandle<()>,
+}
+
+#[derive(Clone)]
+pub struct RemoteAppServerRequestHandle {
+    command_tx: mpsc::Sender<RemoteClientCommand>,
+}
+
+impl RemoteAppServerClient {
+    pub async fn connect(args: RemoteAppServerConnectArgs) -> IoResult<Self> {
+        let channel_capacity = args.channel_capacity.max(1);
+        let websocket_url = args.websocket_url.clone();
+        let url = Url::parse(&websocket_url).map_err(|err| {
+            IoError::new(
+                ErrorKind::InvalidInput,
+                format!("invalid websocket URL `{websocket_url}`: {err}"),
+            )
+        })?;
+        let stream = timeout(CONNECT_TIMEOUT, connect_async(url.as_str()))
+            .await
+            .map_err(|_| {
+                IoError::new(
+                    ErrorKind::TimedOut,
+                    format!("timed out connecting to remote app server at `{websocket_url}`"),
+                )
+            })?
+            .map(|(stream, _response)| stream)
+            .map_err(|err| {
+                IoError::other(format!(
+                    "failed to connect to remote app server at `{websocket_url}`: {err}"
+                ))
+            })?;
+        let mut stream = stream;
+        let pending_events = initialize_remote_connection(
+            &mut stream,
+            &websocket_url,
+            args.initialize_params(),
+            INITIALIZE_TIMEOUT,
+        )
+        .await?;
+
+        let (command_tx, mut command_rx) = mpsc::channel::<RemoteClientCommand>(channel_capacity);
+        let (event_tx, event_rx) = mpsc::channel::<AppServerEvent>(channel_capacity);
+        let worker_handle = tokio::spawn(async move {
+            let mut pending_requests =
+                HashMap::<RequestId, oneshot::Sender<IoResult<RequestResult>>>::new();
+            let mut skipped_events = 0usize;
+            loop {
+                tokio::select! {
+                    command = command_rx.recv() => {
+                        let Some(command) = command else {
+                            let _ = stream.close(None).await;
+                            break;
+                        };
+                        match command {
+                            RemoteClientCommand::Request { request, response_tx } => {
+                                let request_id = request_id_from_client_request(&request);
+                                if pending_requests.contains_key(&request_id) {
+                                    let _ = response_tx.send(Err(IoError::new(
+                                        ErrorKind::InvalidInput,
+                                        format!("duplicate remote app-server request id `{request_id}`"),
+                                    )));
+                                    continue;
+                                }
+                                pending_requests.insert(request_id.clone(), response_tx);
+                                if let Err(err) = write_jsonrpc_message(
+                                    &mut stream,
+                                    JSONRPCMessage::Request(jsonrpc_request_from_client_request(*request)),
+                                    &websocket_url,
+                                )
+                                .await
+                                {
+                                    let err_message = err.to_string();
+                                    if let Some(response_tx) = pending_requests.remove(&request_id) {
+                                        let _ = response_tx.send(Err(err));
+                                    }
+                                    let _ = deliver_event(
+                                        &event_tx,
+                                        &mut skipped_events,
+                                        AppServerEvent::Disconnected {
+                                            message: format!(
+                                                "remote app server at `{websocket_url}` write failed: {err_message}"
+                                            ),
+                                        },
+                                        &mut stream,
+                                    )
+                                    .await;
+                                    break;
+                                }
+                            }
+                            RemoteClientCommand::Notify { notification, response_tx } => {
+                                let result = write_jsonrpc_message(
+                                    &mut stream,
+                                    JSONRPCMessage::Notification(
+                                        jsonrpc_notification_from_client_notification(notification),
+                                    ),
+                                    &websocket_url,
+                                )
+                                .await;
+                                let _ = response_tx.send(result);
+                            }
+                            RemoteClientCommand::ResolveServerRequest {
+                                request_id,
+                                result,
+                                response_tx,
+                            } => {
+                                let result = write_jsonrpc_message(
+                                    &mut stream,
+                                    JSONRPCMessage::Response(JSONRPCResponse {
+                                        id: request_id,
+                                        result,
+                                    }),
+                                    &websocket_url,
+                                )
+                                .await;
+                                let _ = response_tx.send(result);
+                            }
+                            RemoteClientCommand::RejectServerRequest {
+                                request_id,
+                                error,
+                                response_tx,
+                            } => {
+                                let result = write_jsonrpc_message(
+                                    &mut stream,
+                                    JSONRPCMessage::Error(JSONRPCError {
+                                        error,
+                                        id: request_id,
+                                    }),
+                                    &websocket_url,
+                                )
+                                .await;
+                                let _ = response_tx.send(result);
+                            }
+                            RemoteClientCommand::Shutdown { response_tx } => {
+                                let close_result = stream.close(None).await.map_err(|err| {
+                                    IoError::other(format!(
+                                        "failed to close websocket app server `{websocket_url}`: {err}"
+                                    ))
+                                });
+                                let _ = response_tx.send(close_result);
+                                break;
+                            }
+                        }
+                    }
+                    message = stream.next() => {
+                        match message {
+                            Some(Ok(Message::Text(text))) => {
+                                match serde_json::from_str::<JSONRPCMessage>(&text) {
+                                    Ok(JSONRPCMessage::Response(response)) => {
+                                        if let Some(response_tx) = pending_requests.remove(&response.id) {
+                                            let _ = response_tx.send(Ok(Ok(response.result)));
+                                        }
+                                    }
+                                    Ok(JSONRPCMessage::Error(error)) => {
+                                        if let Some(response_tx) = pending_requests.remove(&error.id) {
+                                            let _ = response_tx.send(Ok(Err(error.error)));
+                                        }
+                                    }
+                                    Ok(JSONRPCMessage::Notification(notification)) => {
+                                        let event = app_server_event_from_notification(notification);
+                                        if let Err(err) = deliver_event(
+                                            &event_tx,
+                                            &mut skipped_events,
+                                            event,
+                                            &mut stream,
+                                        )
+                                        .await
+                                        {
+                                            warn!(%err, "failed to deliver remote app-server event");
+                                            break;
+                                        }
+                                    }
+                                    Ok(JSONRPCMessage::Request(request)) => {
+                                        let request_id = request.id.clone();
+                                        let method = request.method.clone();
+                                        match ServerRequest::try_from(request) {
+                                            Ok(request) => {
+                                                if let Err(err) = deliver_event(
+                                                    &event_tx,
+                                                    &mut skipped_events,
+                                                    AppServerEvent::ServerRequest(request),
+                                                    &mut stream,
+                                                )
+                                                .await
+                                                {
+                                                    warn!(%err, "failed to deliver remote app-server server request");
+                                                    break;
+                                                }
+                                            }
+                                            Err(err) => {
+                                                warn!(%err, method, "rejecting unknown remote app-server request");
+                                                if let Err(reject_err) = write_jsonrpc_message(
+                                                    &mut stream,
+                                                    JSONRPCMessage::Error(JSONRPCError {
+                                                        error: JSONRPCErrorError {
+                                                            code: -32601,
+                                                            message: format!(
+                                                                "unsupported remote app-server request `{method}`"
+                                                            ),
+                                                            data: None,
+                                                        },
+                                                        id: request_id,
+                                                    }),
+                                                    &websocket_url,
+                                                )
+                                                .await
+                                                {
+                                                    let err_message = reject_err.to_string();
+                                                    let _ = deliver_event(
+                                                        &event_tx,
+                                                        &mut skipped_events,
+                                                        AppServerEvent::Disconnected {
+                                                            message: format!(
+                                                                "remote app server at `{websocket_url}` write failed: {err_message}"
+                                                            ),
+                                                        },
+                                                        &mut stream,
+                                                    )
+                                                    .await;
+                                                    break;
+                                                }
+                                            }
+                                        }
+                                    }
+                                    Err(err) => {
+                                        let _ = deliver_event(
+                                            &event_tx,
+                                            &mut skipped_events,
+                                            AppServerEvent::Disconnected {
+                                                message: format!(
+                                                    "remote app server at `{websocket_url}` sent invalid JSON-RPC: {err}"
+                                                ),
+                                            },
+                                            &mut stream,
+                                        )
+                                        .await;
+                                        break;
+                                    }
+                                }
+                            }
+                            Some(Ok(Message::Close(frame))) => {
+                                let reason = frame
+                                    .as_ref()
+                                    .map(|frame| frame.reason.to_string())
+                                    .filter(|reason| !reason.is_empty())
+                                    .unwrap_or_else(|| "connection closed".to_string());
+                                let _ = deliver_event(
+                                    &event_tx,
+                                    &mut skipped_events,
+                                    AppServerEvent::Disconnected {
+                                        message: format!(
+                                            "remote app server at `{websocket_url}` disconnected: {reason}"
+                                        ),
+                                    },
+                                    &mut stream,
+                                )
+                                .await;
+                                break;
+                            }
+                            Some(Ok(Message::Binary(_)))
+                            | Some(Ok(Message::Ping(_)))
+                            | Some(Ok(Message::Pong(_)))
+                            | Some(Ok(Message::Frame(_))) => {}
+                            Some(Err(err)) => {
+                                let _ = deliver_event(
+                                    &event_tx,
+                                    &mut skipped_events,
+                                    AppServerEvent::Disconnected {
+                                        message: format!(
+                                            "remote app server at `{websocket_url}` transport failed: {err}"
+                                        ),
+                                    },
+                                    &mut stream,
+                                )
+                                .await;
+                                break;
+                            }
+                            None => {
+                                let _ = deliver_event(
+                                    &event_tx,
+                                    &mut skipped_events,
+                                    AppServerEvent::Disconnected {
+                                        message: format!(
+                                            "remote app server at `{websocket_url}` closed the connection"
+                                        ),
+                                    },
+                                    &mut stream,
+                                )
+                                .await;
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+
+            let err = IoError::new(
+                ErrorKind::BrokenPipe,
+                "remote app-server worker channel is closed",
+            );
+            for (_, response_tx) in pending_requests {
+                let _ = response_tx.send(Err(IoError::new(err.kind(), err.to_string())));
+            }
+        });
+
+        Ok(Self {
+            command_tx,
+            event_rx,
+            pending_events: pending_events.into(),
+            worker_handle,
+        })
+    }
+
+    pub fn request_handle(&self) -> RemoteAppServerRequestHandle {
+        RemoteAppServerRequestHandle {
+            command_tx: self.command_tx.clone(),
+        }
+    }
+
+    pub async fn request(&self, request: ClientRequest) -> IoResult<RequestResult> {
+        let (response_tx, response_rx) = oneshot::channel();
+        self.command_tx
+            .send(RemoteClientCommand::Request {
+                request: Box::new(request),
+                response_tx,
+            })
+            .await
+            .map_err(|_| {
+                IoError::new(
+                    ErrorKind::BrokenPipe,
+                    "remote app-server worker channel is closed",
+                )
+            })?;
+        response_rx.await.map_err(|_| {
+            IoError::new(
+                ErrorKind::BrokenPipe,
+                "remote app-server request channel is closed",
+            )
+        })?
+    }
+
+    pub async fn request_typed<T>(&self, request: ClientRequest) -> Result<T, TypedRequestError>
+    where
+        T: DeserializeOwned,
+    {
+        let method = request_method_name(&request);
+        let response =
+            self.request(request)
+                .await
+                .map_err(|source| TypedRequestError::Transport {
+                    method: method.clone(),
+                    source,
+                })?;
+        let result = response.map_err(|source| TypedRequestError::Server {
+            method: method.clone(),
+            source,
+        })?;
+        serde_json::from_value(result)
+            .map_err(|source| TypedRequestError::Deserialize { method, source })
+    }
+
+    pub async fn notify(&self, notification: ClientNotification) -> IoResult<()> {
+        let (response_tx, response_rx) = oneshot::channel();
+        self.command_tx
+            .send(RemoteClientCommand::Notify {
+                notification,
+                response_tx,
+            })
+            .await
+            .map_err(|_| {
+                IoError::new(
+                    ErrorKind::BrokenPipe,
+                    "remote app-server worker channel is closed",
+                )
+            })?;
+        response_rx.await.map_err(|_| {
+            IoError::new(
+                ErrorKind::BrokenPipe,
+                "remote app-server notify channel is closed",
+            )
+        })?
+    }
+
+    pub async fn resolve_server_request(
+        &self,
+        request_id: RequestId,
+        result: JsonRpcResult,
+    ) -> IoResult<()> {
+        let (response_tx, response_rx) = oneshot::channel();
+        self.command_tx
+            .send(RemoteClientCommand::ResolveServerRequest {
+                request_id,
+                result,
+                response_tx,
+            })
+            .await
+            .map_err(|_| {
+                IoError::new(
+                    ErrorKind::BrokenPipe,
+                    "remote app-server worker channel is closed",
+                )
+            })?;
+        response_rx.await.map_err(|_| {
+            IoError::new(
+                ErrorKind::BrokenPipe,
+                "remote app-server resolve channel is closed",
+            )
+        })?
+    }
+
+    pub async fn reject_server_request(
+        &self,
+        request_id: RequestId,
+        error: JSONRPCErrorError,
+    ) -> IoResult<()> {
+        let (response_tx, response_rx) = oneshot::channel();
+        self.command_tx
+            .send(RemoteClientCommand::RejectServerRequest {
+                request_id,
+                error,
+                response_tx,
+            })
+            .await
+            .map_err(|_| {
+                IoError::new(
+                    ErrorKind::BrokenPipe,
+                    "remote app-server worker channel is closed",
+                )
+            })?;
+        response_rx.await.map_err(|_| {
+            IoError::new(
+                ErrorKind::BrokenPipe,
+                "remote app-server reject channel is closed",
+            )
+        })?
+    }
+
+    pub async fn next_event(&mut self) -> Option<AppServerEvent> {
+        if let Some(event) = self.pending_events.pop_front() {
+            return Some(event);
+        }
+        self.event_rx.recv().await
+    }
+
+    pub async fn shutdown(self) -> IoResult<()> {
+        let Self {
+            command_tx,
+            event_rx,
+            pending_events: _pending_events,
+            worker_handle,
+        } = self;
+        let mut worker_handle = worker_handle;
+        drop(event_rx);
+        let (response_tx, response_rx) = oneshot::channel();
+        if command_tx
+            .send(RemoteClientCommand::Shutdown { response_tx })
+            .await
+            .is_ok()
+            && let Ok(command_result) = timeout(SHUTDOWN_TIMEOUT, response_rx).await
+        {
+            command_result.map_err(|_| {
+                IoError::new(
+                    ErrorKind::BrokenPipe,
+                    "remote app-server shutdown channel is closed",
+                )
+            })??;
+        }
+
+        if let Err(_elapsed) = timeout(SHUTDOWN_TIMEOUT, &mut worker_handle).await {
+            worker_handle.abort();
+            let _ = worker_handle.await;
+        }
+        Ok(())
+    }
+}
+
+impl RemoteAppServerRequestHandle {
+    pub async fn request(&self, request: ClientRequest) -> IoResult<RequestResult> {
+        let (response_tx, response_rx) = oneshot::channel();
+        self.command_tx
+            .send(RemoteClientCommand::Request {
+                request: Box::new(request),
+                response_tx,
+            })
+            .await
+            .map_err(|_| {
+                IoError::new(
+                    ErrorKind::BrokenPipe,
+                    "remote app-server worker channel is closed",
+                )
+            })?;
+        response_rx.await.map_err(|_| {
+            IoError::new(
+                ErrorKind::BrokenPipe,
+                "remote app-server request channel is closed",
+            )
+        })?
+    }
+
+    pub async fn request_typed<T>(&self, request: ClientRequest) -> Result<T, TypedRequestError>
+    where
+        T: DeserializeOwned,
+    {
+        let method = request_method_name(&request);
+        let response =
+            self.request(request)
+                .await
+                .map_err(|source| TypedRequestError::Transport {
+                    method: method.clone(),
+                    source,
+                })?;
+        let result = response.map_err(|source| TypedRequestError::Server {
+            method: method.clone(),
+            source,
+        })?;
+        serde_json::from_value(result)
+            .map_err(|source| TypedRequestError::Deserialize { method, source })
+    }
+}
+
+async fn initialize_remote_connection(
+    stream: &mut WebSocketStream<MaybeTlsStream<TcpStream>>,
+    websocket_url: &str,
+    params: InitializeParams,
+    initialize_timeout: Duration,
+) -> IoResult<Vec<AppServerEvent>> {
+    let initialize_request_id = RequestId::String("initialize".to_string());
+    let mut pending_events = Vec::new();
+    write_jsonrpc_message(
+        stream,
+        JSONRPCMessage::Request(jsonrpc_request_from_client_request(
+            ClientRequest::Initialize {
+                request_id: initialize_request_id.clone(),
+                params,
+            },
+        )),
+        websocket_url,
+    )
+    .await?;
+
+    timeout(initialize_timeout, async {
+        loop {
+            match stream.next().await {
+                Some(Ok(Message::Text(text))) => {
+                    let message = serde_json::from_str::<JSONRPCMessage>(&text).map_err(|err| {
+                        IoError::other(format!(
+                            "remote app server at `{websocket_url}` sent invalid initialize response: {err}"
+                        ))
+                    })?;
+                    match message {
+                        JSONRPCMessage::Response(response) if response.id == initialize_request_id => {
+                            break Ok(());
+                        }
+                        JSONRPCMessage::Error(error) if error.id == initialize_request_id => {
+                            break Err(IoError::other(format!(
+                                "remote app server at `{websocket_url}` rejected initialize: {}",
+                                error.error.message
+                            )));
+                        }
+                        JSONRPCMessage::Notification(notification) => {
+                            pending_events.push(app_server_event_from_notification(notification));
+                        }
+                        JSONRPCMessage::Request(request) => {
+                            let request_id = request.id.clone();
+                            let method = request.method.clone();
+                            match ServerRequest::try_from(request) {
+                                Ok(request) => {
+                                    pending_events.push(AppServerEvent::ServerRequest(request));
+                                }
+                                Err(err) => {
+                                    warn!(%err, method, "rejecting unknown remote app-server request during initialize");
+                                    write_jsonrpc_message(
+                                        stream,
+                                        JSONRPCMessage::Error(JSONRPCError {
+                                            error: JSONRPCErrorError {
+                                                code: -32601,
+                                                message: format!(
+                                                    "unsupported remote app-server request `{method}`"
+                                                ),
+                                                data: None,
+                                            },
+                                            id: request_id,
+                                        }),
+                                        websocket_url,
+                                    )
+                                    .await?;
+                                }
+                            }
+                        }
+                        JSONRPCMessage::Response(_) | JSONRPCMessage::Error(_) => {}
+                    }
+                }
+                Some(Ok(Message::Binary(_)))
+                | Some(Ok(Message::Ping(_)))
+                | Some(Ok(Message::Pong(_)))
+                | Some(Ok(Message::Frame(_))) => {}
+                Some(Ok(Message::Close(frame))) => {
+                    let reason = frame
+                        .as_ref()
+                        .map(|frame| frame.reason.to_string())
+                        .filter(|reason| !reason.is_empty())
+                        .unwrap_or_else(|| "connection closed during initialize".to_string());
+                    break Err(IoError::new(
+                        ErrorKind::ConnectionAborted,
+                        format!(
+                            "remote app server at `{websocket_url}` closed during initialize: {reason}"
+                        ),
+                    ));
+                }
+                Some(Err(err)) => {
+                    break Err(IoError::other(format!(
+                        "remote app server at `{websocket_url}` transport failed during initialize: {err}"
+                    )));
+                }
+                None => {
+                    break Err(IoError::new(
+                        ErrorKind::UnexpectedEof,
+                        format!("remote app server at `{websocket_url}` closed during initialize"),
+                    ));
+                }
+            }
+        }
+    })
+    .await
+    .map_err(|_| {
+        IoError::new(
+            ErrorKind::TimedOut,
+            format!("timed out waiting for initialize response from `{websocket_url}`"),
+        )
+    })??;
+
+    write_jsonrpc_message(
+        stream,
+        JSONRPCMessage::Notification(jsonrpc_notification_from_client_notification(
+            ClientNotification::Initialized,
+        )),
+        websocket_url,
+    )
+    .await?;
+
+    Ok(pending_events)
+}
+
+fn app_server_event_from_notification(notification: JSONRPCNotification) -> AppServerEvent {
+    match ServerNotification::try_from(notification.clone()) {
+        Ok(notification) => AppServerEvent::ServerNotification(notification),
+        Err(_) => AppServerEvent::LegacyNotification(notification),
+    }
+}
+
+async fn deliver_event(
+    event_tx: &mpsc::Sender<AppServerEvent>,
+    skipped_events: &mut usize,
+    event: AppServerEvent,
+    stream: &mut WebSocketStream<MaybeTlsStream<TcpStream>>,
+) -> IoResult<()> {
+    if *skipped_events > 0 {
+        if event_requires_delivery(&event) {
+            if event_tx
+                .send(AppServerEvent::Lagged {
+                    skipped: *skipped_events,
+                })
+                .await
+                .is_err()
+            {
+                return Err(IoError::new(
+                    ErrorKind::BrokenPipe,
+                    "remote app-server event consumer channel is closed",
+                ));
+            }
+            *skipped_events = 0;
+        } else {
+            match event_tx.try_send(AppServerEvent::Lagged {
+                skipped: *skipped_events,
+            }) {
+                Ok(()) => *skipped_events = 0,
+                Err(mpsc::error::TrySendError::Full(_)) => {
+                    *skipped_events = (*skipped_events).saturating_add(1);
+                    reject_if_server_request_dropped(stream, &event).await?;
+                    return Ok(());
+                }
+                Err(mpsc::error::TrySendError::Closed(_)) => {
+                    return Err(IoError::new(
+                        ErrorKind::BrokenPipe,
+                        "remote app-server event consumer channel is closed",
+                    ));
+                }
+            }
+        }
+    }
+
+    if event_requires_delivery(&event) {
+        event_tx.send(event).await.map_err(|_| {
+            IoError::new(
+                ErrorKind::BrokenPipe,
+                "remote app-server event consumer channel is closed",
+            )
+        })?;
+        return Ok(());
+    }
+
+    match event_tx.try_send(event) {
+        Ok(()) => Ok(()),
+        Err(mpsc::error::TrySendError::Full(event)) => {
+            *skipped_events = (*skipped_events).saturating_add(1);
+            reject_if_server_request_dropped(stream, &event).await
+        }
+        Err(mpsc::error::TrySendError::Closed(_)) => Err(IoError::new(
+            ErrorKind::BrokenPipe,
+            "remote app-server event consumer channel is closed",
+        )),
+    }
+}
+
+async fn reject_if_server_request_dropped(
+    stream: &mut WebSocketStream<MaybeTlsStream<TcpStream>>,
+    event: &AppServerEvent,
+) -> IoResult<()> {
+    let AppServerEvent::ServerRequest(request) = event else {
+        return Ok(());
+    };
+    write_jsonrpc_message(
+        stream,
+        JSONRPCMessage::Error(JSONRPCError {
+            error: JSONRPCErrorError {
+                code: -32001,
+                message: "remote app-server event queue is full".to_string(),
+                data: None,
+            },
+            id: request.id().clone(),
+        }),
+        "<remote-app-server>",
+    )
+    .await
+}
+
+fn event_requires_delivery(event: &AppServerEvent) -> bool {
+    match event {
+        AppServerEvent::ServerNotification(ServerNotification::TurnCompleted(_)) => true,
+        AppServerEvent::LegacyNotification(notification) => matches!(
+            notification
+                .method
+                .strip_prefix("codex/event/")
+                .unwrap_or(&notification.method),
+            "task_complete" | "turn_aborted" | "shutdown_complete"
+        ),
+        AppServerEvent::Disconnected { .. } => true,
+        AppServerEvent::Lagged { .. }
+        | AppServerEvent::ServerNotification(_)
+        | AppServerEvent::ServerRequest(_) => false,
+    }
+}
+
+fn request_id_from_client_request(request: &ClientRequest) -> RequestId {
+    jsonrpc_request_from_client_request(request.clone()).id
+}
+
+fn jsonrpc_request_from_client_request(request: ClientRequest) -> JSONRPCRequest {
+    let value = match serde_json::to_value(request) {
+        Ok(value) => value,
+        Err(err) => panic!("client request should serialize: {err}"),
+    };
+    match serde_json::from_value(value) {
+        Ok(request) => request,
+        Err(err) => panic!("client request should encode as JSON-RPC request: {err}"),
+    }
+}
+
+fn jsonrpc_notification_from_client_notification(
+    notification: ClientNotification,
+) -> JSONRPCNotification {
+    let value = match serde_json::to_value(notification) {
+        Ok(value) => value,
+        Err(err) => panic!("client notification should serialize: {err}"),
+    };
+    match serde_json::from_value(value) {
+        Ok(notification) => notification,
+        Err(err) => panic!("client notification should encode as JSON-RPC notification: {err}"),
+    }
+}
+
+async fn write_jsonrpc_message(
+    stream: &mut WebSocketStream<MaybeTlsStream<TcpStream>>,
+    message: JSONRPCMessage,
+    websocket_url: &str,
+) -> IoResult<()> {
+    let payload = serde_json::to_string(&message).map_err(IoError::other)?;
+    stream
+        .send(Message::Text(payload.into()))
+        .await
+        .map_err(|err| {
+            IoError::other(format!(
+                "failed to write websocket message to `{websocket_url}`: {err}"
+            ))
+        })
+}

codex-rs/app-server-protocol/schema/json/ClientRequest.json

@@ -5,6 +5,14 @@
       "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
       "type": "string"
     },
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AppsListParams": {
       "description": "EXPERIMENTAL - list available apps/connectors.",
       "properties": {
@@ -498,6 +506,9 @@
     },
     "DynamicToolSpec": {
       "properties": {
+        "deferLoading": {
+          "type": "boolean"
+        },
         "description": {
           "type": "string"
         },
@@ -634,6 +645,164 @@
       ],
       "type": "object"
     },
+    "FsCopyParams": {
+      "description": "Copy a file or directory tree on the host filesystem.",
+      "properties": {
+        "destinationPath": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute destination path."
+        },
+        "recursive": {
+          "description": "Required for directory copies; ignored for file copies.",
+          "type": "boolean"
+        },
+        "sourcePath": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute source path."
+        }
+      },
+      "required": [
+        "destinationPath",
+        "sourcePath"
+      ],
+      "type": "object"
+    },
+    "FsCreateDirectoryParams": {
+      "description": "Create a directory on the host filesystem.",
+      "properties": {
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute directory path to create."
+        },
+        "recursive": {
+          "description": "Whether parent directories should also be created. Defaults to `true`.",
+          "type": [
+            "boolean",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "type": "object"
+    },
+    "FsGetMetadataParams": {
+      "description": "Request metadata for an absolute path.",
+      "properties": {
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute path to inspect."
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "type": "object"
+    },
+    "FsReadDirectoryParams": {
+      "description": "List direct child names for a directory.",
+      "properties": {
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute directory path to read."
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "type": "object"
+    },
+    "FsReadFileParams": {
+      "description": "Read a file from the host filesystem.",
+      "properties": {
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute path to read."
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "type": "object"
+    },
+    "FsRemoveParams": {
+      "description": "Remove a file or directory tree from the host filesystem.",
+      "properties": {
+        "force": {
+          "description": "Whether missing paths should be ignored. Defaults to `true`.",
+          "type": [
+            "boolean",
+            "null"
+          ]
+        },
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute path to remove."
+        },
+        "recursive": {
+          "description": "Whether directory removal should recurse. Defaults to `true`.",
+          "type": [
+            "boolean",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "type": "object"
+    },
+    "FsWriteFileParams": {
+      "description": "Write a file on the host filesystem.",
+      "properties": {
+        "dataBase64": {
+          "description": "File contents encoded as base64.",
+          "type": "string"
+        },
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute path to write."
+        }
+      },
+      "required": [
+        "dataBase64",
+        "path"
+      ],
+      "type": "object"
+    },
     "FunctionCallOutputBody": {
       "anyOf": [
         {
@@ -2350,6 +2519,17 @@
             }
           ]
         },
+        "approvalsReviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+        },
         "baseInstructions": {
           "type": [
             "string",
@@ -2630,6 +2810,17 @@
             }
           ]
         },
+        "approvalsReviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+        },
         "baseInstructions": {
           "type": [
             "string",
@@ -2781,6 +2972,17 @@
             }
           ]
         },
+        "approvalsReviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+        },
         "baseInstructions": {
           "type": [
             "string",
@@ -2920,6 +3122,17 @@
           ],
           "description": "Override the approval policy for this turn and subsequent turns."
         },
+        "approvalsReviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Override where approval requests are routed for review on this turn and subsequent turns."
+        },
         "cwd": {
           "description": "Override the working directory for this turn and subsequent turns.",
           "type": [
@@ -3670,6 +3883,174 @@
       "title": "App/listRequest",
       "type": "object"
     },
+    {
+      "properties": {
+        "id": {
+          "$ref": "#/definitions/RequestId"
+        },
+        "method": {
+          "enum": [
+            "fs/readFile"
+          ],
+          "title": "Fs/readFileRequestMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/FsReadFileParams"
+        }
+      },
+      "required": [
+        "id",
+        "method",
+        "params"
+      ],
+      "title": "Fs/readFileRequest",
+      "type": "object"
+    },
+    {
+      "properties": {
+        "id": {
+          "$ref": "#/definitions/RequestId"
+        },
+        "method": {
+          "enum": [
+            "fs/writeFile"
+          ],
+          "title": "Fs/writeFileRequestMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/FsWriteFileParams"
+        }
+      },
+      "required": [
+        "id",
+        "method",
+        "params"
+      ],
+      "title": "Fs/writeFileRequest",
+      "type": "object"
+    },
+    {
+      "properties": {
+        "id": {
+          "$ref": "#/definitions/RequestId"
+        },
+        "method": {
+          "enum": [
+            "fs/createDirectory"
+          ],
+          "title": "Fs/createDirectoryRequestMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/FsCreateDirectoryParams"
+        }
+      },
+      "required": [
+        "id",
+        "method",
+        "params"
+      ],
+      "title": "Fs/createDirectoryRequest",
+      "type": "object"
+    },
+    {
+      "properties": {
+        "id": {
+          "$ref": "#/definitions/RequestId"
+        },
+        "method": {
+          "enum": [
+            "fs/getMetadata"
+          ],
+          "title": "Fs/getMetadataRequestMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/FsGetMetadataParams"
+        }
+      },
+      "required": [
+        "id",
+        "method",
+        "params"
+      ],
+      "title": "Fs/getMetadataRequest",
+      "type": "object"
+    },
+    {
+      "properties": {
+        "id": {
+          "$ref": "#/definitions/RequestId"
+        },
+        "method": {
+          "enum": [
+            "fs/readDirectory"
+          ],
+          "title": "Fs/readDirectoryRequestMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/FsReadDirectoryParams"
+        }
+      },
+      "required": [
+        "id",
+        "method",
+        "params"
+      ],
+      "title": "Fs/readDirectoryRequest",
+      "type": "object"
+    },
+    {
+      "properties": {
+        "id": {
+          "$ref": "#/definitions/RequestId"
+        },
+        "method": {
+          "enum": [
+            "fs/remove"
+          ],
+          "title": "Fs/removeRequestMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/FsRemoveParams"
+        }
+      },
+      "required": [
+        "id",
+        "method",
+        "params"
+      ],
+      "title": "Fs/removeRequest",
+      "type": "object"
+    },
+    {
+      "properties": {
+        "id": {
+          "$ref": "#/definitions/RequestId"
+        },
+        "method": {
+          "enum": [
+            "fs/copy"
+          ],
+          "title": "Fs/copyRequestMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/FsCopyParams"
+        }
+      },
+      "required": [
+        "id",
+        "method",
+        "params"
+      ],
+      "title": "Fs/copyRequest",
+      "type": "object"
+    },
     {
       "properties": {
         "id": {

codex-rs/app-server-protocol/schema/json/PermissionsRequestApprovalParams.json

@@ -28,41 +28,6 @@
       },
       "type": "object"
     },
-    "AdditionalMacOsPermissions": {
-      "properties": {
-        "accessibility": {
-          "type": "boolean"
-        },
-        "automations": {
-          "$ref": "#/definitions/MacOsAutomationPermission"
-        },
-        "calendar": {
-          "type": "boolean"
-        },
-        "contacts": {
-          "$ref": "#/definitions/MacOsContactsPermission"
-        },
-        "launchServices": {
-          "type": "boolean"
-        },
-        "preferences": {
-          "$ref": "#/definitions/MacOsPreferencesPermission"
-        },
-        "reminders": {
-          "type": "boolean"
-        }
-      },
-      "required": [
-        "accessibility",
-        "automations",
-        "calendar",
-        "contacts",
-        "launchServices",
-        "preferences",
-        "reminders"
-      ],
-      "type": "object"
-    },
     "AdditionalNetworkPermissions": {
       "properties": {
         "enabled": {
@@ -74,7 +39,8 @@
       },
       "type": "object"
     },
-    "AdditionalPermissionProfile": {
+    "RequestPermissionProfile": {
+      "additionalProperties": false,
       "properties": {
         "fileSystem": {
           "anyOf": [
@@ -86,16 +52,6 @@
             }
           ]
         },
-        "macos": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/AdditionalMacOsPermissions"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
         "network": {
           "anyOf": [
             {
@@ -108,49 +64,6 @@
         }
       },
       "type": "object"
-    },
-    "MacOsAutomationPermission": {
-      "oneOf": [
-        {
-          "enum": [
-            "none",
-            "all"
-          ],
-          "type": "string"
-        },
-        {
-          "additionalProperties": false,
-          "properties": {
-            "bundle_ids": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            }
-          },
-          "required": [
-            "bundle_ids"
-          ],
-          "title": "BundleIdsMacOsAutomationPermission",
-          "type": "object"
-        }
-      ]
-    },
-    "MacOsContactsPermission": {
-      "enum": [
-        "none",
-        "read_only",
-        "read_write"
-      ],
-      "type": "string"
-    },
-    "MacOsPreferencesPermission": {
-      "enum": [
-        "none",
-        "read_only",
-        "read_write"
-      ],
-      "type": "string"
     }
   },
   "properties": {
@@ -158,7 +71,7 @@
       "type": "string"
     },
     "permissions": {
-      "$ref": "#/definitions/AdditionalPermissionProfile"
+      "$ref": "#/definitions/RequestPermissionProfile"
     },
     "reason": {
       "type": [

codex-rs/app-server-protocol/schema/json/PermissionsRequestApprovalResponse.json

@@ -39,65 +39,6 @@
       },
       "type": "object"
     },
-    "GrantedMacOsPermissions": {
-      "properties": {
-        "accessibility": {
-          "type": [
-            "boolean",
-            "null"
-          ]
-        },
-        "automations": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/MacOsAutomationPermission"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "calendar": {
-          "type": [
-            "boolean",
-            "null"
-          ]
-        },
-        "contacts": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/MacOsContactsPermission"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "launchServices": {
-          "type": [
-            "boolean",
-            "null"
-          ]
-        },
-        "preferences": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/MacOsPreferencesPermission"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "reminders": {
-          "type": [
-            "boolean",
-            "null"
-          ]
-        }
-      },
-      "type": "object"
-    },
     "GrantedPermissionProfile": {
       "properties": {
         "fileSystem": {
@@ -110,16 +51,6 @@
             }
           ]
         },
-        "macos": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/GrantedMacOsPermissions"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
         "network": {
           "anyOf": [
             {
@@ -133,49 +64,6 @@
       },
       "type": "object"
     },
-    "MacOsAutomationPermission": {
-      "oneOf": [
-        {
-          "enum": [
-            "none",
-            "all"
-          ],
-          "type": "string"
-        },
-        {
-          "additionalProperties": false,
-          "properties": {
-            "bundle_ids": {
-              "items": {
-                "type": "string"
-              },
-              "type": "array"
-            }
-          },
-          "required": [
-            "bundle_ids"
-          ],
-          "title": "BundleIdsMacOsAutomationPermission",
-          "type": "object"
-        }
-      ]
-    },
-    "MacOsContactsPermission": {
-      "enum": [
-        "none",
-        "read_only",
-        "read_write"
-      ],
-      "type": "string"
-    },
-    "MacOsPreferencesPermission": {
-      "enum": [
-        "none",
-        "read_only",
-        "read_write"
-      ],
-      "type": "string"
-    },
     "PermissionGrantScope": {
       "enum": [
         "turn",

codex-rs/app-server-protocol/schema/json/ServerNotification.json

@@ -535,6 +535,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",
@@ -1056,6 +1057,61 @@
       },
       "type": "object"
     },
+    "GuardianApprovalReview": {
+      "description": "[UNSTABLE] Temporary guardian approval review payload used by `item/autoApprovalReview/*` notifications. This shape is expected to change soon.",
+      "properties": {
+        "rationale": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "riskLevel": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/GuardianRiskLevel"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "riskScore": {
+          "format": "uint8",
+          "minimum": 0.0,
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "status": {
+          "$ref": "#/definitions/GuardianApprovalReviewStatus"
+        }
+      },
+      "required": [
+        "status"
+      ],
+      "type": "object"
+    },
+    "GuardianApprovalReviewStatus": {
+      "description": "[UNSTABLE] Lifecycle state for a guardian approval review.",
+      "enum": [
+        "inProgress",
+        "approved",
+        "denied",
+        "aborted"
+      ],
+      "type": "string"
+    },
+    "GuardianRiskLevel": {
+      "description": "[UNSTABLE] Risk level assigned by guardian approval review.",
+      "enum": [
+        "low",
+        "medium",
+        "high"
+      ],
+      "type": "string"
+    },
     "HookCompletedNotification": {
       "properties": {
         "run": {
@@ -1253,6 +1309,56 @@
       ],
       "type": "object"
     },
+    "ItemGuardianApprovalReviewCompletedNotification": {
+      "description": "[UNSTABLE] Temporary notification payload for guardian automatic approval review. This shape is expected to change soon.\n\nTODO(ccunningham): Attach guardian review state to the reviewed tool item's lifecycle instead of sending separate standalone review notifications so the app-server API can persist and replay review state via `thread/read`.",
+      "properties": {
+        "action": true,
+        "review": {
+          "$ref": "#/definitions/GuardianApprovalReview"
+        },
+        "targetItemId": {
+          "type": "string"
+        },
+        "threadId": {
+          "type": "string"
+        },
+        "turnId": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "review",
+        "targetItemId",
+        "threadId",
+        "turnId"
+      ],
+      "type": "object"
+    },
+    "ItemGuardianApprovalReviewStartedNotification": {
+      "description": "[UNSTABLE] Temporary notification payload for guardian automatic approval review. This shape is expected to change soon.\n\nTODO(ccunningham): Attach guardian review state to the reviewed tool item's lifecycle instead of sending separate standalone review notifications so the app-server API can persist and replay review state via `thread/read`.",
+      "properties": {
+        "action": true,
+        "review": {
+          "$ref": "#/definitions/GuardianApprovalReview"
+        },
+        "targetItemId": {
+          "type": "string"
+        },
+        "threadId": {
+          "type": "string"
+        },
+        "turnId": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "review",
+        "targetItemId",
+        "threadId",
+        "turnId"
+      ],
+      "type": "object"
+    },
     "ItemStartedNotification": {
       "properties": {
         "item": {
@@ -3706,6 +3812,46 @@
       "title": "Item/startedNotification",
       "type": "object"
     },
+    {
+      "properties": {
+        "method": {
+          "enum": [
+            "item/autoApprovalReview/started"
+          ],
+          "title": "Item/autoApprovalReview/startedNotificationMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/ItemGuardianApprovalReviewStartedNotification"
+        }
+      },
+      "required": [
+        "method",
+        "params"
+      ],
+      "title": "Item/autoApprovalReview/startedNotification",
+      "type": "object"
+    },
+    {
+      "properties": {
+        "method": {
+          "enum": [
+            "item/autoApprovalReview/completed"
+          ],
+          "title": "Item/autoApprovalReview/completedNotificationMethod",
+          "type": "string"
+        },
+        "params": {
+          "$ref": "#/definitions/ItemGuardianApprovalReviewCompletedNotification"
+        }
+      },
+      "required": [
+        "method",
+        "params"
+      ],
+      "title": "Item/autoApprovalReview/completedNotification",
+      "type": "object"
+    },
     {
       "properties": {
         "method": {

codex-rs/app-server-protocol/schema/json/ServerRequest.json

@@ -1449,7 +1449,7 @@
           "type": "string"
         },
         "permissions": {
-          "$ref": "#/definitions/AdditionalPermissionProfile"
+          "$ref": "#/definitions/RequestPermissionProfile"
         },
         "reason": {
           "type": [
@@ -1483,6 +1483,32 @@
         }
       ]
     },
+    "RequestPermissionProfile": {
+      "additionalProperties": false,
+      "properties": {
+        "fileSystem": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/AdditionalFileSystemPermissions"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "network": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/AdditionalNetworkPermissions"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        }
+      },
+      "type": "object"
+    },
     "ThreadId": {
       "type": "string"
     },

codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json

@@ -739,6 +739,174 @@
           "title": "App/listRequest",
           "type": "object"
         },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/v2/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/readFile"
+              ],
+              "title": "Fs/readFileRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/FsReadFileParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/readFileRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/v2/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/writeFile"
+              ],
+              "title": "Fs/writeFileRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/FsWriteFileParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/writeFileRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/v2/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/createDirectory"
+              ],
+              "title": "Fs/createDirectoryRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/FsCreateDirectoryParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/createDirectoryRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/v2/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/getMetadata"
+              ],
+              "title": "Fs/getMetadataRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/FsGetMetadataParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/getMetadataRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/v2/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/readDirectory"
+              ],
+              "title": "Fs/readDirectoryRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/FsReadDirectoryParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/readDirectoryRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/v2/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/remove"
+              ],
+              "title": "Fs/removeRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/FsRemoveParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/removeRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/v2/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/copy"
+              ],
+              "title": "Fs/copyRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/FsCopyParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/copyRequest",
+          "type": "object"
+        },
         {
           "properties": {
             "id": {
@@ -2030,65 +2198,6 @@
       "title": "FuzzyFileSearchSessionUpdatedNotification",
       "type": "object"
     },
-    "GrantedMacOsPermissions": {
-      "properties": {
-        "accessibility": {
-          "type": [
-            "boolean",
-            "null"
-          ]
-        },
-        "automations": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/MacOsAutomationPermission"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "calendar": {
-          "type": [
-            "boolean",
-            "null"
-          ]
-        },
-        "contacts": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/MacOsContactsPermission"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "launchServices": {
-          "type": [
-            "boolean",
-            "null"
-          ]
-        },
-        "preferences": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/MacOsPreferencesPermission"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "reminders": {
-          "type": [
-            "boolean",
-            "null"
-          ]
-        }
-      },
-      "type": "object"
-    },
     "GrantedPermissionProfile": {
       "properties": {
         "fileSystem": {
@@ -2101,16 +2210,6 @@
             }
           ]
         },
-        "macos": {
-          "anyOf": [
-            {
-              "$ref": "#/definitions/GrantedMacOsPermissions"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
         "network": {
           "anyOf": [
             {
@@ -2171,11 +2270,21 @@
     "InitializeResponse": {
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
+        "platformFamily": {
+          "description": "Platform family for the running app-server target, for example `\"unix\"` or `\"windows\"`.",
+          "type": "string"
+        },
+        "platformOs": {
+          "description": "Operating system for the running app-server target, for example `\"macos\"`, `\"linux\"`, or `\"windows\"`.",
+          "type": "string"
+        },
         "userAgent": {
           "type": "string"
         }
       },
       "required": [
+        "platformFamily",
+        "platformOs",
         "userAgent"
       ],
       "title": "InitializeResponse",
@@ -3146,7 +3255,7 @@
           "type": "string"
         },
         "permissions": {
-          "$ref": "#/definitions/AdditionalPermissionProfile"
+          "$ref": "#/definitions/RequestPermissionProfile"
         },
         "reason": {
           "type": [
@@ -3204,6 +3313,32 @@
       ],
       "title": "RequestId"
     },
+    "RequestPermissionProfile": {
+      "additionalProperties": false,
+      "properties": {
+        "fileSystem": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/AdditionalFileSystemPermissions"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "network": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/AdditionalNetworkPermissions"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        }
+      },
+      "type": "object"
+    },
     "ReviewDecision": {
       "description": "User's decision in response to an ExecApprovalRequest.",
       "oneOf": [
@@ -3609,6 +3744,46 @@
           "title": "Item/startedNotification",
           "type": "object"
         },
+        {
+          "properties": {
+            "method": {
+              "enum": [
+                "item/autoApprovalReview/started"
+              ],
+              "title": "Item/autoApprovalReview/startedNotificationMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/ItemGuardianApprovalReviewStartedNotification"
+            }
+          },
+          "required": [
+            "method",
+            "params"
+          ],
+          "title": "Item/autoApprovalReview/startedNotification",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "method": {
+              "enum": [
+                "item/autoApprovalReview/completed"
+              ],
+              "title": "Item/autoApprovalReview/completedNotificationMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/v2/ItemGuardianApprovalReviewCompletedNotification"
+            }
+          },
+          "required": [
+            "method",
+            "params"
+          ],
+          "title": "Item/autoApprovalReview/completedNotification",
+          "type": "object"
+        },
         {
           "properties": {
             "method": {
@@ -5110,6 +5285,14 @@
       "AppToolsConfig": {
         "type": "object"
       },
+      "ApprovalsReviewer": {
+        "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+        "enum": [
+          "user",
+          "guardian_subagent"
+        ],
+        "type": "string"
+      },
       "AppsConfig": {
         "properties": {
           "_default": {
@@ -5465,6 +5648,7 @@
         "enum": [
           "pendingInit",
           "running",
+          "interrupted",
           "completed",
           "errored",
           "shutdown",
@@ -6006,6 +6190,17 @@
               }
             ]
           },
+          "approvals_reviewer": {
+            "anyOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "[UNSTABLE] Optional default for where approval requests are routed for review."
+          },
           "compact_prompt": {
             "type": [
               "string",
@@ -6813,6 +7008,9 @@
       },
       "DynamicToolSpec": {
         "properties": {
+          "deferLoading": {
+            "type": "boolean"
+          },
           "description": {
             "type": "string"
           },
@@ -7181,6 +7379,290 @@
         ],
         "type": "string"
       },
+      "FsCopyParams": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Copy a file or directory tree on the host filesystem.",
+        "properties": {
+          "destinationPath": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/AbsolutePathBuf"
+              }
+            ],
+            "description": "Absolute destination path."
+          },
+          "recursive": {
+            "description": "Required for directory copies; ignored for file copies.",
+            "type": "boolean"
+          },
+          "sourcePath": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/AbsolutePathBuf"
+              }
+            ],
+            "description": "Absolute source path."
+          }
+        },
+        "required": [
+          "destinationPath",
+          "sourcePath"
+        ],
+        "title": "FsCopyParams",
+        "type": "object"
+      },
+      "FsCopyResponse": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Successful response for `fs/copy`.",
+        "title": "FsCopyResponse",
+        "type": "object"
+      },
+      "FsCreateDirectoryParams": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Create a directory on the host filesystem.",
+        "properties": {
+          "path": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/AbsolutePathBuf"
+              }
+            ],
+            "description": "Absolute directory path to create."
+          },
+          "recursive": {
+            "description": "Whether parent directories should also be created. Defaults to `true`.",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "path"
+        ],
+        "title": "FsCreateDirectoryParams",
+        "type": "object"
+      },
+      "FsCreateDirectoryResponse": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Successful response for `fs/createDirectory`.",
+        "title": "FsCreateDirectoryResponse",
+        "type": "object"
+      },
+      "FsGetMetadataParams": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Request metadata for an absolute path.",
+        "properties": {
+          "path": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/AbsolutePathBuf"
+              }
+            ],
+            "description": "Absolute path to inspect."
+          }
+        },
+        "required": [
+          "path"
+        ],
+        "title": "FsGetMetadataParams",
+        "type": "object"
+      },
+      "FsGetMetadataResponse": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Metadata returned by `fs/getMetadata`.",
+        "properties": {
+          "createdAtMs": {
+            "description": "File creation time in Unix milliseconds when available, otherwise `0`.",
+            "format": "int64",
+            "type": "integer"
+          },
+          "isDirectory": {
+            "description": "Whether the path currently resolves to a directory.",
+            "type": "boolean"
+          },
+          "isFile": {
+            "description": "Whether the path currently resolves to a regular file.",
+            "type": "boolean"
+          },
+          "modifiedAtMs": {
+            "description": "File modification time in Unix milliseconds when available, otherwise `0`.",
+            "format": "int64",
+            "type": "integer"
+          }
+        },
+        "required": [
+          "createdAtMs",
+          "isDirectory",
+          "isFile",
+          "modifiedAtMs"
+        ],
+        "title": "FsGetMetadataResponse",
+        "type": "object"
+      },
+      "FsReadDirectoryEntry": {
+        "description": "A directory entry returned by `fs/readDirectory`.",
+        "properties": {
+          "fileName": {
+            "description": "Direct child entry name only, not an absolute or relative path.",
+            "type": "string"
+          },
+          "isDirectory": {
+            "description": "Whether this entry resolves to a directory.",
+            "type": "boolean"
+          },
+          "isFile": {
+            "description": "Whether this entry resolves to a regular file.",
+            "type": "boolean"
+          }
+        },
+        "required": [
+          "fileName",
+          "isDirectory",
+          "isFile"
+        ],
+        "type": "object"
+      },
+      "FsReadDirectoryParams": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "List direct child names for a directory.",
+        "properties": {
+          "path": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/AbsolutePathBuf"
+              }
+            ],
+            "description": "Absolute directory path to read."
+          }
+        },
+        "required": [
+          "path"
+        ],
+        "title": "FsReadDirectoryParams",
+        "type": "object"
+      },
+      "FsReadDirectoryResponse": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Directory entries returned by `fs/readDirectory`.",
+        "properties": {
+          "entries": {
+            "description": "Direct child entries in the requested directory.",
+            "items": {
+              "$ref": "#/definitions/v2/FsReadDirectoryEntry"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "entries"
+        ],
+        "title": "FsReadDirectoryResponse",
+        "type": "object"
+      },
+      "FsReadFileParams": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Read a file from the host filesystem.",
+        "properties": {
+          "path": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/AbsolutePathBuf"
+              }
+            ],
+            "description": "Absolute path to read."
+          }
+        },
+        "required": [
+          "path"
+        ],
+        "title": "FsReadFileParams",
+        "type": "object"
+      },
+      "FsReadFileResponse": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Base64-encoded file contents returned by `fs/readFile`.",
+        "properties": {
+          "dataBase64": {
+            "description": "File contents encoded as base64.",
+            "type": "string"
+          }
+        },
+        "required": [
+          "dataBase64"
+        ],
+        "title": "FsReadFileResponse",
+        "type": "object"
+      },
+      "FsRemoveParams": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Remove a file or directory tree from the host filesystem.",
+        "properties": {
+          "force": {
+            "description": "Whether missing paths should be ignored. Defaults to `true`.",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
+          "path": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/AbsolutePathBuf"
+              }
+            ],
+            "description": "Absolute path to remove."
+          },
+          "recursive": {
+            "description": "Whether directory removal should recurse. Defaults to `true`.",
+            "type": [
+              "boolean",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "path"
+        ],
+        "title": "FsRemoveParams",
+        "type": "object"
+      },
+      "FsRemoveResponse": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Successful response for `fs/remove`.",
+        "title": "FsRemoveResponse",
+        "type": "object"
+      },
+      "FsWriteFileParams": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Write a file on the host filesystem.",
+        "properties": {
+          "dataBase64": {
+            "description": "File contents encoded as base64.",
+            "type": "string"
+          },
+          "path": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/AbsolutePathBuf"
+              }
+            ],
+            "description": "Absolute path to write."
+          }
+        },
+        "required": [
+          "dataBase64",
+          "path"
+        ],
+        "title": "FsWriteFileParams",
+        "type": "object"
+      },
+      "FsWriteFileResponse": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "Successful response for `fs/writeFile`.",
+        "title": "FsWriteFileResponse",
+        "type": "object"
+      },
       "FunctionCallOutputBody": {
         "anyOf": [
           {
@@ -7385,6 +7867,61 @@
         },
         "type": "object"
       },
+      "GuardianApprovalReview": {
+        "description": "[UNSTABLE] Temporary guardian approval review payload used by `item/autoApprovalReview/*` notifications. This shape is expected to change soon.",
+        "properties": {
+          "rationale": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "riskLevel": {
+            "anyOf": [
+              {
+                "$ref": "#/definitions/v2/GuardianRiskLevel"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "riskScore": {
+            "format": "uint8",
+            "minimum": 0.0,
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
+          "status": {
+            "$ref": "#/definitions/v2/GuardianApprovalReviewStatus"
+          }
+        },
+        "required": [
+          "status"
+        ],
+        "type": "object"
+      },
+      "GuardianApprovalReviewStatus": {
+        "description": "[UNSTABLE] Lifecycle state for a guardian approval review.",
+        "enum": [
+          "inProgress",
+          "approved",
+          "denied",
+          "aborted"
+        ],
+        "type": "string"
+      },
+      "GuardianRiskLevel": {
+        "description": "[UNSTABLE] Risk level assigned by guardian approval review.",
+        "enum": [
+          "low",
+          "medium",
+          "high"
+        ],
+        "type": "string"
+      },
       "HazelnutScope": {
         "enum": [
           "example",
@@ -7625,6 +8162,60 @@
         "title": "ItemCompletedNotification",
         "type": "object"
       },
+      "ItemGuardianApprovalReviewCompletedNotification": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "[UNSTABLE] Temporary notification payload for guardian automatic approval review. This shape is expected to change soon.\n\nTODO(ccunningham): Attach guardian review state to the reviewed tool item's lifecycle instead of sending separate standalone review notifications so the app-server API can persist and replay review state via `thread/read`.",
+        "properties": {
+          "action": true,
+          "review": {
+            "$ref": "#/definitions/v2/GuardianApprovalReview"
+          },
+          "targetItemId": {
+            "type": "string"
+          },
+          "threadId": {
+            "type": "string"
+          },
+          "turnId": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "review",
+          "targetItemId",
+          "threadId",
+          "turnId"
+        ],
+        "title": "ItemGuardianApprovalReviewCompletedNotification",
+        "type": "object"
+      },
+      "ItemGuardianApprovalReviewStartedNotification": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "description": "[UNSTABLE] Temporary notification payload for guardian automatic approval review. This shape is expected to change soon.\n\nTODO(ccunningham): Attach guardian review state to the reviewed tool item's lifecycle instead of sending separate standalone review notifications so the app-server API can persist and replay review state via `thread/read`.",
+        "properties": {
+          "action": true,
+          "review": {
+            "$ref": "#/definitions/v2/GuardianApprovalReview"
+          },
+          "targetItemId": {
+            "type": "string"
+          },
+          "threadId": {
+            "type": "string"
+          },
+          "turnId": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "review",
+          "targetItemId",
+          "threadId",
+          "turnId"
+        ],
+        "title": "ItemGuardianApprovalReviewStartedNotification",
+        "type": "object"
+      },
       "ItemStartedNotification": {
         "$schema": "http://json-schema.org/draft-07/schema#",
         "properties": {
@@ -8662,8 +9253,12 @@
             ]
           },
           "defaultPrompt": {
+            "description": "Starter prompts for the plugin. Capped at 3 entries with a maximum of 128 characters per entry.",
+            "items": {
+              "type": "string"
+            },
             "type": [
-              "string",
+              "array",
               "null"
             ]
           },
@@ -8936,6 +9531,17 @@
               }
             ]
           },
+          "approvals_reviewer": {
+            "anyOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "[UNSTABLE] Optional profile-level override for where approval requests are routed for review. If omitted, the enclosing config default is used."
+          },
           "chatgpt_base_url": {
             "type": [
               "string",
@@ -11191,6 +11797,17 @@
               }
             ]
           },
+          "approvalsReviewer": {
+            "anyOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+          },
           "baseInstructions": {
             "type": [
               "string",
@@ -11275,6 +11892,14 @@
           "approvalPolicy": {
             "$ref": "#/definitions/v2/AskForApproval"
           },
+          "approvalsReviewer": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              }
+            ],
+            "description": "Reviewer currently used for approval requests on this thread."
+          },
           "cwd": {
             "type": "string"
           },
@@ -11313,6 +11938,7 @@
         },
         "required": [
           "approvalPolicy",
+          "approvalsReviewer",
           "cwd",
           "model",
           "modelProvider",
@@ -12309,6 +12935,17 @@
               }
             ]
           },
+          "approvalsReviewer": {
+            "anyOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+          },
           "baseInstructions": {
             "type": [
               "string",
@@ -12400,6 +13037,14 @@
           "approvalPolicy": {
             "$ref": "#/definitions/v2/AskForApproval"
           },
+          "approvalsReviewer": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              }
+            ],
+            "description": "Reviewer currently used for approval requests on this thread."
+          },
           "cwd": {
             "type": "string"
           },
@@ -12438,6 +13083,7 @@
         },
         "required": [
           "approvalPolicy",
+          "approvalsReviewer",
           "cwd",
           "model",
           "modelProvider",
@@ -12542,6 +13188,17 @@
               }
             ]
           },
+          "approvalsReviewer": {
+            "anyOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+          },
           "baseInstructions": {
             "type": [
               "string",
@@ -12638,6 +13295,14 @@
           "approvalPolicy": {
             "$ref": "#/definitions/v2/AskForApproval"
           },
+          "approvalsReviewer": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              }
+            ],
+            "description": "Reviewer currently used for approval requests on this thread."
+          },
           "cwd": {
             "type": "string"
           },
@@ -12676,6 +13341,7 @@
         },
         "required": [
           "approvalPolicy",
+          "approvalsReviewer",
           "cwd",
           "model",
           "modelProvider",
@@ -13185,6 +13851,17 @@
             ],
             "description": "Override the approval policy for this turn and subsequent turns."
           },
+          "approvalsReviewer": {
+            "anyOf": [
+              {
+                "$ref": "#/definitions/v2/ApprovalsReviewer"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Override where approval requests are routed for review on this turn and subsequent turns."
+          },
           "cwd": {
             "description": "Override the working directory for this turn and subsequent turns.",
             "type": [

codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json

@@ -532,6 +532,14 @@
     "AppToolsConfig": {
       "type": "object"
     },
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AppsConfig": {
       "properties": {
         "_default": {
@@ -1258,6 +1266,174 @@
           "title": "App/listRequest",
           "type": "object"
         },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/readFile"
+              ],
+              "title": "Fs/readFileRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/FsReadFileParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/readFileRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/writeFile"
+              ],
+              "title": "Fs/writeFileRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/FsWriteFileParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/writeFileRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/createDirectory"
+              ],
+              "title": "Fs/createDirectoryRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/FsCreateDirectoryParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/createDirectoryRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/getMetadata"
+              ],
+              "title": "Fs/getMetadataRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/FsGetMetadataParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/getMetadataRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/readDirectory"
+              ],
+              "title": "Fs/readDirectoryRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/FsReadDirectoryParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/readDirectoryRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/remove"
+              ],
+              "title": "Fs/removeRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/FsRemoveParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/removeRequest",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "id": {
+              "$ref": "#/definitions/RequestId"
+            },
+            "method": {
+              "enum": [
+                "fs/copy"
+              ],
+              "title": "Fs/copyRequestMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/FsCopyParams"
+            }
+          },
+          "required": [
+            "id",
+            "method",
+            "params"
+          ],
+          "title": "Fs/copyRequest",
+          "type": "object"
+        },
         {
           "properties": {
             "id": {
@@ -2116,6 +2292,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",
@@ -2657,6 +2834,17 @@
             }
           ]
         },
+        "approvals_reviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "[UNSTABLE] Optional default for where approval requests are routed for review."
+        },
         "compact_prompt": {
           "type": [
             "string",
@@ -3464,6 +3652,9 @@
     },
     "DynamicToolSpec": {
       "properties": {
+        "deferLoading": {
+          "type": "boolean"
+        },
         "description": {
           "type": "string"
         },
@@ -3832,6 +4023,290 @@
       ],
       "type": "string"
     },
+    "FsCopyParams": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Copy a file or directory tree on the host filesystem.",
+      "properties": {
+        "destinationPath": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute destination path."
+        },
+        "recursive": {
+          "description": "Required for directory copies; ignored for file copies.",
+          "type": "boolean"
+        },
+        "sourcePath": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute source path."
+        }
+      },
+      "required": [
+        "destinationPath",
+        "sourcePath"
+      ],
+      "title": "FsCopyParams",
+      "type": "object"
+    },
+    "FsCopyResponse": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Successful response for `fs/copy`.",
+      "title": "FsCopyResponse",
+      "type": "object"
+    },
+    "FsCreateDirectoryParams": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Create a directory on the host filesystem.",
+      "properties": {
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute directory path to create."
+        },
+        "recursive": {
+          "description": "Whether parent directories should also be created. Defaults to `true`.",
+          "type": [
+            "boolean",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "title": "FsCreateDirectoryParams",
+      "type": "object"
+    },
+    "FsCreateDirectoryResponse": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Successful response for `fs/createDirectory`.",
+      "title": "FsCreateDirectoryResponse",
+      "type": "object"
+    },
+    "FsGetMetadataParams": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Request metadata for an absolute path.",
+      "properties": {
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute path to inspect."
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "title": "FsGetMetadataParams",
+      "type": "object"
+    },
+    "FsGetMetadataResponse": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Metadata returned by `fs/getMetadata`.",
+      "properties": {
+        "createdAtMs": {
+          "description": "File creation time in Unix milliseconds when available, otherwise `0`.",
+          "format": "int64",
+          "type": "integer"
+        },
+        "isDirectory": {
+          "description": "Whether the path currently resolves to a directory.",
+          "type": "boolean"
+        },
+        "isFile": {
+          "description": "Whether the path currently resolves to a regular file.",
+          "type": "boolean"
+        },
+        "modifiedAtMs": {
+          "description": "File modification time in Unix milliseconds when available, otherwise `0`.",
+          "format": "int64",
+          "type": "integer"
+        }
+      },
+      "required": [
+        "createdAtMs",
+        "isDirectory",
+        "isFile",
+        "modifiedAtMs"
+      ],
+      "title": "FsGetMetadataResponse",
+      "type": "object"
+    },
+    "FsReadDirectoryEntry": {
+      "description": "A directory entry returned by `fs/readDirectory`.",
+      "properties": {
+        "fileName": {
+          "description": "Direct child entry name only, not an absolute or relative path.",
+          "type": "string"
+        },
+        "isDirectory": {
+          "description": "Whether this entry resolves to a directory.",
+          "type": "boolean"
+        },
+        "isFile": {
+          "description": "Whether this entry resolves to a regular file.",
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "fileName",
+        "isDirectory",
+        "isFile"
+      ],
+      "type": "object"
+    },
+    "FsReadDirectoryParams": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "List direct child names for a directory.",
+      "properties": {
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute directory path to read."
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "title": "FsReadDirectoryParams",
+      "type": "object"
+    },
+    "FsReadDirectoryResponse": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Directory entries returned by `fs/readDirectory`.",
+      "properties": {
+        "entries": {
+          "description": "Direct child entries in the requested directory.",
+          "items": {
+            "$ref": "#/definitions/FsReadDirectoryEntry"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "entries"
+      ],
+      "title": "FsReadDirectoryResponse",
+      "type": "object"
+    },
+    "FsReadFileParams": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Read a file from the host filesystem.",
+      "properties": {
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute path to read."
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "title": "FsReadFileParams",
+      "type": "object"
+    },
+    "FsReadFileResponse": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Base64-encoded file contents returned by `fs/readFile`.",
+      "properties": {
+        "dataBase64": {
+          "description": "File contents encoded as base64.",
+          "type": "string"
+        }
+      },
+      "required": [
+        "dataBase64"
+      ],
+      "title": "FsReadFileResponse",
+      "type": "object"
+    },
+    "FsRemoveParams": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Remove a file or directory tree from the host filesystem.",
+      "properties": {
+        "force": {
+          "description": "Whether missing paths should be ignored. Defaults to `true`.",
+          "type": [
+            "boolean",
+            "null"
+          ]
+        },
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute path to remove."
+        },
+        "recursive": {
+          "description": "Whether directory removal should recurse. Defaults to `true`.",
+          "type": [
+            "boolean",
+            "null"
+          ]
+        }
+      },
+      "required": [
+        "path"
+      ],
+      "title": "FsRemoveParams",
+      "type": "object"
+    },
+    "FsRemoveResponse": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Successful response for `fs/remove`.",
+      "title": "FsRemoveResponse",
+      "type": "object"
+    },
+    "FsWriteFileParams": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Write a file on the host filesystem.",
+      "properties": {
+        "dataBase64": {
+          "description": "File contents encoded as base64.",
+          "type": "string"
+        },
+        "path": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/AbsolutePathBuf"
+            }
+          ],
+          "description": "Absolute path to write."
+        }
+      },
+      "required": [
+        "dataBase64",
+        "path"
+      ],
+      "title": "FsWriteFileParams",
+      "type": "object"
+    },
+    "FsWriteFileResponse": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "Successful response for `fs/writeFile`.",
+      "title": "FsWriteFileResponse",
+      "type": "object"
+    },
     "FunctionCallOutputBody": {
       "anyOf": [
         {
@@ -4136,6 +4611,61 @@
       },
       "type": "object"
     },
+    "GuardianApprovalReview": {
+      "description": "[UNSTABLE] Temporary guardian approval review payload used by `item/autoApprovalReview/*` notifications. This shape is expected to change soon.",
+      "properties": {
+        "rationale": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "riskLevel": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/GuardianRiskLevel"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "riskScore": {
+          "format": "uint8",
+          "minimum": 0.0,
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "status": {
+          "$ref": "#/definitions/GuardianApprovalReviewStatus"
+        }
+      },
+      "required": [
+        "status"
+      ],
+      "type": "object"
+    },
+    "GuardianApprovalReviewStatus": {
+      "description": "[UNSTABLE] Lifecycle state for a guardian approval review.",
+      "enum": [
+        "inProgress",
+        "approved",
+        "denied",
+        "aborted"
+      ],
+      "type": "string"
+    },
+    "GuardianRiskLevel": {
+      "description": "[UNSTABLE] Risk level assigned by guardian approval review.",
+      "enum": [
+        "low",
+        "medium",
+        "high"
+      ],
+      "type": "string"
+    },
     "HazelnutScope": {
       "enum": [
         "example",
@@ -4420,6 +4950,60 @@
       "title": "ItemCompletedNotification",
       "type": "object"
     },
+    "ItemGuardianApprovalReviewCompletedNotification": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "[UNSTABLE] Temporary notification payload for guardian automatic approval review. This shape is expected to change soon.\n\nTODO(ccunningham): Attach guardian review state to the reviewed tool item's lifecycle instead of sending separate standalone review notifications so the app-server API can persist and replay review state via `thread/read`.",
+      "properties": {
+        "action": true,
+        "review": {
+          "$ref": "#/definitions/GuardianApprovalReview"
+        },
+        "targetItemId": {
+          "type": "string"
+        },
+        "threadId": {
+          "type": "string"
+        },
+        "turnId": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "review",
+        "targetItemId",
+        "threadId",
+        "turnId"
+      ],
+      "title": "ItemGuardianApprovalReviewCompletedNotification",
+      "type": "object"
+    },
+    "ItemGuardianApprovalReviewStartedNotification": {
+      "$schema": "http://json-schema.org/draft-07/schema#",
+      "description": "[UNSTABLE] Temporary notification payload for guardian automatic approval review. This shape is expected to change soon.\n\nTODO(ccunningham): Attach guardian review state to the reviewed tool item's lifecycle instead of sending separate standalone review notifications so the app-server API can persist and replay review state via `thread/read`.",
+      "properties": {
+        "action": true,
+        "review": {
+          "$ref": "#/definitions/GuardianApprovalReview"
+        },
+        "targetItemId": {
+          "type": "string"
+        },
+        "threadId": {
+          "type": "string"
+        },
+        "turnId": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "review",
+        "targetItemId",
+        "threadId",
+        "turnId"
+      ],
+      "title": "ItemGuardianApprovalReviewStartedNotification",
+      "type": "object"
+    },
     "ItemStartedNotification": {
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
@@ -5457,8 +6041,12 @@
           ]
         },
         "defaultPrompt": {
+          "description": "Starter prompts for the plugin. Capped at 3 entries with a maximum of 128 characters per entry.",
+          "items": {
+            "type": "string"
+          },
           "type": [
-            "string",
+            "array",
             "null"
           ]
         },
@@ -5731,6 +6319,17 @@
             }
           ]
         },
+        "approvals_reviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "[UNSTABLE] Optional profile-level override for where approval requests are routed for review. If omitted, the enclosing config default is used."
+        },
         "chatgpt_base_url": {
           "type": [
             "string",
@@ -7479,6 +8078,46 @@
           "title": "Item/startedNotification",
           "type": "object"
         },
+        {
+          "properties": {
+            "method": {
+              "enum": [
+                "item/autoApprovalReview/started"
+              ],
+              "title": "Item/autoApprovalReview/startedNotificationMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/ItemGuardianApprovalReviewStartedNotification"
+            }
+          },
+          "required": [
+            "method",
+            "params"
+          ],
+          "title": "Item/autoApprovalReview/startedNotification",
+          "type": "object"
+        },
+        {
+          "properties": {
+            "method": {
+              "enum": [
+                "item/autoApprovalReview/completed"
+              ],
+              "title": "Item/autoApprovalReview/completedNotificationMethod",
+              "type": "string"
+            },
+            "params": {
+              "$ref": "#/definitions/ItemGuardianApprovalReviewCompletedNotification"
+            }
+          },
+          "required": [
+            "method",
+            "params"
+          ],
+          "title": "Item/autoApprovalReview/completedNotification",
+          "type": "object"
+        },
         {
           "properties": {
             "method": {
@@ -8918,6 +9557,17 @@
             }
           ]
         },
+        "approvalsReviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+        },
         "baseInstructions": {
           "type": [
             "string",
@@ -9002,6 +9652,14 @@
         "approvalPolicy": {
           "$ref": "#/definitions/AskForApproval"
         },
+        "approvalsReviewer": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            }
+          ],
+          "description": "Reviewer currently used for approval requests on this thread."
+        },
         "cwd": {
           "type": "string"
         },
@@ -9040,6 +9698,7 @@
       },
       "required": [
         "approvalPolicy",
+        "approvalsReviewer",
         "cwd",
         "model",
         "modelProvider",
@@ -10036,6 +10695,17 @@
             }
           ]
         },
+        "approvalsReviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+        },
         "baseInstructions": {
           "type": [
             "string",
@@ -10127,6 +10797,14 @@
         "approvalPolicy": {
           "$ref": "#/definitions/AskForApproval"
         },
+        "approvalsReviewer": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            }
+          ],
+          "description": "Reviewer currently used for approval requests on this thread."
+        },
         "cwd": {
           "type": "string"
         },
@@ -10165,6 +10843,7 @@
       },
       "required": [
         "approvalPolicy",
+        "approvalsReviewer",
         "cwd",
         "model",
         "modelProvider",
@@ -10269,6 +10948,17 @@
             }
           ]
         },
+        "approvalsReviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+        },
         "baseInstructions": {
           "type": [
             "string",
@@ -10365,6 +11055,14 @@
         "approvalPolicy": {
           "$ref": "#/definitions/AskForApproval"
         },
+        "approvalsReviewer": {
+          "allOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            }
+          ],
+          "description": "Reviewer currently used for approval requests on this thread."
+        },
         "cwd": {
           "type": "string"
         },
@@ -10403,6 +11101,7 @@
       },
       "required": [
         "approvalPolicy",
+        "approvalsReviewer",
         "cwd",
         "model",
         "modelProvider",
@@ -10912,6 +11611,17 @@
           ],
           "description": "Override the approval policy for this turn and subsequent turns."
         },
+        "approvalsReviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Override where approval requests are routed for review on this turn and subsequent turns."
+        },
         "cwd": {
           "description": "Override the working directory for this turn and subsequent turns.",
           "type": [

codex-rs/app-server-protocol/schema/json/v1/InitializeResponse.json

@@ -1,11 +1,21 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
   "properties": {
+    "platformFamily": {
+      "description": "Platform family for the running app-server target, for example `\"unix\"` or `\"windows\"`.",
+      "type": "string"
+    },
+    "platformOs": {
+      "description": "Operating system for the running app-server target, for example `\"macos\"`, `\"linux\"`, or `\"windows\"`.",
+      "type": "string"
+    },
     "userAgent": {
       "type": "string"
     }
   },
   "required": [
+    "platformFamily",
+    "platformOs",
     "userAgent"
   ],
   "title": "InitializeResponse",

codex-rs/app-server-protocol/schema/json/v2/ConfigReadResponse.json

@@ -96,6 +96,14 @@
     "AppToolsConfig": {
       "type": "object"
     },
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AppsConfig": {
       "properties": {
         "_default": {
@@ -202,6 +210,17 @@
             }
           ]
         },
+        "approvals_reviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "[UNSTABLE] Optional default for where approval requests are routed for review."
+        },
         "compact_prompt": {
           "type": [
             "string",
@@ -578,6 +597,17 @@
             }
           ]
         },
+        "approvals_reviewer": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/ApprovalsReviewer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "[UNSTABLE] Optional profile-level override for where approval requests are routed for review. If omitted, the enclosing config default is used."
+        },
         "chatgpt_base_url": {
           "type": [
             "string",

codex-rs/app-server-protocol/schema/json/v2/FsCopyParams.json

@@ -0,0 +1,38 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "AbsolutePathBuf": {
+      "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
+      "type": "string"
+    }
+  },
+  "description": "Copy a file or directory tree on the host filesystem.",
+  "properties": {
+    "destinationPath": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/AbsolutePathBuf"
+        }
+      ],
+      "description": "Absolute destination path."
+    },
+    "recursive": {
+      "description": "Required for directory copies; ignored for file copies.",
+      "type": "boolean"
+    },
+    "sourcePath": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/AbsolutePathBuf"
+        }
+      ],
+      "description": "Absolute source path."
+    }
+  },
+  "required": [
+    "destinationPath",
+    "sourcePath"
+  ],
+  "title": "FsCopyParams",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsCopyResponse.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Successful response for `fs/copy`.",
+  "title": "FsCopyResponse",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsCreateDirectoryParams.json

@@ -0,0 +1,32 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "AbsolutePathBuf": {
+      "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
+      "type": "string"
+    }
+  },
+  "description": "Create a directory on the host filesystem.",
+  "properties": {
+    "path": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/AbsolutePathBuf"
+        }
+      ],
+      "description": "Absolute directory path to create."
+    },
+    "recursive": {
+      "description": "Whether parent directories should also be created. Defaults to `true`.",
+      "type": [
+        "boolean",
+        "null"
+      ]
+    }
+  },
+  "required": [
+    "path"
+  ],
+  "title": "FsCreateDirectoryParams",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsCreateDirectoryResponse.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Successful response for `fs/createDirectory`.",
+  "title": "FsCreateDirectoryResponse",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsGetMetadataParams.json

@@ -0,0 +1,25 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "AbsolutePathBuf": {
+      "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
+      "type": "string"
+    }
+  },
+  "description": "Request metadata for an absolute path.",
+  "properties": {
+    "path": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/AbsolutePathBuf"
+        }
+      ],
+      "description": "Absolute path to inspect."
+    }
+  },
+  "required": [
+    "path"
+  ],
+  "title": "FsGetMetadataParams",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsGetMetadataResponse.json

@@ -0,0 +1,32 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Metadata returned by `fs/getMetadata`.",
+  "properties": {
+    "createdAtMs": {
+      "description": "File creation time in Unix milliseconds when available, otherwise `0`.",
+      "format": "int64",
+      "type": "integer"
+    },
+    "isDirectory": {
+      "description": "Whether the path currently resolves to a directory.",
+      "type": "boolean"
+    },
+    "isFile": {
+      "description": "Whether the path currently resolves to a regular file.",
+      "type": "boolean"
+    },
+    "modifiedAtMs": {
+      "description": "File modification time in Unix milliseconds when available, otherwise `0`.",
+      "format": "int64",
+      "type": "integer"
+    }
+  },
+  "required": [
+    "createdAtMs",
+    "isDirectory",
+    "isFile",
+    "modifiedAtMs"
+  ],
+  "title": "FsGetMetadataResponse",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsReadDirectoryParams.json

@@ -0,0 +1,25 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "AbsolutePathBuf": {
+      "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
+      "type": "string"
+    }
+  },
+  "description": "List direct child names for a directory.",
+  "properties": {
+    "path": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/AbsolutePathBuf"
+        }
+      ],
+      "description": "Absolute directory path to read."
+    }
+  },
+  "required": [
+    "path"
+  ],
+  "title": "FsReadDirectoryParams",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsReadDirectoryResponse.json

@@ -0,0 +1,43 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "FsReadDirectoryEntry": {
+      "description": "A directory entry returned by `fs/readDirectory`.",
+      "properties": {
+        "fileName": {
+          "description": "Direct child entry name only, not an absolute or relative path.",
+          "type": "string"
+        },
+        "isDirectory": {
+          "description": "Whether this entry resolves to a directory.",
+          "type": "boolean"
+        },
+        "isFile": {
+          "description": "Whether this entry resolves to a regular file.",
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "fileName",
+        "isDirectory",
+        "isFile"
+      ],
+      "type": "object"
+    }
+  },
+  "description": "Directory entries returned by `fs/readDirectory`.",
+  "properties": {
+    "entries": {
+      "description": "Direct child entries in the requested directory.",
+      "items": {
+        "$ref": "#/definitions/FsReadDirectoryEntry"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "entries"
+  ],
+  "title": "FsReadDirectoryResponse",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsReadFileParams.json

@@ -0,0 +1,25 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "AbsolutePathBuf": {
+      "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
+      "type": "string"
+    }
+  },
+  "description": "Read a file from the host filesystem.",
+  "properties": {
+    "path": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/AbsolutePathBuf"
+        }
+      ],
+      "description": "Absolute path to read."
+    }
+  },
+  "required": [
+    "path"
+  ],
+  "title": "FsReadFileParams",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsReadFileResponse.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Base64-encoded file contents returned by `fs/readFile`.",
+  "properties": {
+    "dataBase64": {
+      "description": "File contents encoded as base64.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "dataBase64"
+  ],
+  "title": "FsReadFileResponse",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsRemoveParams.json

@@ -0,0 +1,39 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "AbsolutePathBuf": {
+      "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
+      "type": "string"
+    }
+  },
+  "description": "Remove a file or directory tree from the host filesystem.",
+  "properties": {
+    "force": {
+      "description": "Whether missing paths should be ignored. Defaults to `true`.",
+      "type": [
+        "boolean",
+        "null"
+      ]
+    },
+    "path": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/AbsolutePathBuf"
+        }
+      ],
+      "description": "Absolute path to remove."
+    },
+    "recursive": {
+      "description": "Whether directory removal should recurse. Defaults to `true`.",
+      "type": [
+        "boolean",
+        "null"
+      ]
+    }
+  },
+  "required": [
+    "path"
+  ],
+  "title": "FsRemoveParams",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsRemoveResponse.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Successful response for `fs/remove`.",
+  "title": "FsRemoveResponse",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsWriteFileParams.json

@@ -0,0 +1,30 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "AbsolutePathBuf": {
+      "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
+      "type": "string"
+    }
+  },
+  "description": "Write a file on the host filesystem.",
+  "properties": {
+    "dataBase64": {
+      "description": "File contents encoded as base64.",
+      "type": "string"
+    },
+    "path": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/AbsolutePathBuf"
+        }
+      ],
+      "description": "Absolute path to write."
+    }
+  },
+  "required": [
+    "dataBase64",
+    "path"
+  ],
+  "title": "FsWriteFileParams",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/FsWriteFileResponse.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Successful response for `fs/writeFile`.",
+  "title": "FsWriteFileResponse",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/ItemCompletedNotification.json

@@ -41,6 +41,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/ItemGuardianApprovalReviewCompletedNotification.json

@@ -0,0 +1,84 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "GuardianApprovalReview": {
+      "description": "[UNSTABLE] Temporary guardian approval review payload used by `item/autoApprovalReview/*` notifications. This shape is expected to change soon.",
+      "properties": {
+        "rationale": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "riskLevel": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/GuardianRiskLevel"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "riskScore": {
+          "format": "uint8",
+          "minimum": 0.0,
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "status": {
+          "$ref": "#/definitions/GuardianApprovalReviewStatus"
+        }
+      },
+      "required": [
+        "status"
+      ],
+      "type": "object"
+    },
+    "GuardianApprovalReviewStatus": {
+      "description": "[UNSTABLE] Lifecycle state for a guardian approval review.",
+      "enum": [
+        "inProgress",
+        "approved",
+        "denied",
+        "aborted"
+      ],
+      "type": "string"
+    },
+    "GuardianRiskLevel": {
+      "description": "[UNSTABLE] Risk level assigned by guardian approval review.",
+      "enum": [
+        "low",
+        "medium",
+        "high"
+      ],
+      "type": "string"
+    }
+  },
+  "description": "[UNSTABLE] Temporary notification payload for guardian automatic approval review. This shape is expected to change soon.\n\nTODO(ccunningham): Attach guardian review state to the reviewed tool item's lifecycle instead of sending separate standalone review notifications so the app-server API can persist and replay review state via `thread/read`.",
+  "properties": {
+    "action": true,
+    "review": {
+      "$ref": "#/definitions/GuardianApprovalReview"
+    },
+    "targetItemId": {
+      "type": "string"
+    },
+    "threadId": {
+      "type": "string"
+    },
+    "turnId": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "review",
+    "targetItemId",
+    "threadId",
+    "turnId"
+  ],
+  "title": "ItemGuardianApprovalReviewCompletedNotification",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/ItemGuardianApprovalReviewStartedNotification.json

@@ -0,0 +1,84 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "GuardianApprovalReview": {
+      "description": "[UNSTABLE] Temporary guardian approval review payload used by `item/autoApprovalReview/*` notifications. This shape is expected to change soon.",
+      "properties": {
+        "rationale": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "riskLevel": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/GuardianRiskLevel"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "riskScore": {
+          "format": "uint8",
+          "minimum": 0.0,
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "status": {
+          "$ref": "#/definitions/GuardianApprovalReviewStatus"
+        }
+      },
+      "required": [
+        "status"
+      ],
+      "type": "object"
+    },
+    "GuardianApprovalReviewStatus": {
+      "description": "[UNSTABLE] Lifecycle state for a guardian approval review.",
+      "enum": [
+        "inProgress",
+        "approved",
+        "denied",
+        "aborted"
+      ],
+      "type": "string"
+    },
+    "GuardianRiskLevel": {
+      "description": "[UNSTABLE] Risk level assigned by guardian approval review.",
+      "enum": [
+        "low",
+        "medium",
+        "high"
+      ],
+      "type": "string"
+    }
+  },
+  "description": "[UNSTABLE] Temporary notification payload for guardian automatic approval review. This shape is expected to change soon.\n\nTODO(ccunningham): Attach guardian review state to the reviewed tool item's lifecycle instead of sending separate standalone review notifications so the app-server API can persist and replay review state via `thread/read`.",
+  "properties": {
+    "action": true,
+    "review": {
+      "$ref": "#/definitions/GuardianApprovalReview"
+    },
+    "targetItemId": {
+      "type": "string"
+    },
+    "threadId": {
+      "type": "string"
+    },
+    "turnId": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "review",
+    "targetItemId",
+    "threadId",
+    "turnId"
+  ],
+  "title": "ItemGuardianApprovalReviewStartedNotification",
+  "type": "object"
+}

codex-rs/app-server-protocol/schema/json/v2/ItemStartedNotification.json

@@ -41,6 +41,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/PluginListResponse.json

@@ -51,8 +51,12 @@
           ]
         },
         "defaultPrompt": {
+          "description": "Starter prompts for the plugin. Capped at 3 entries with a maximum of 128 characters per entry.",
+          "items": {
+            "type": "string"
+          },
           "type": [
-            "string",
+            "array",
             "null"
           ]
         },

codex-rs/app-server-protocol/schema/json/v2/PluginReadResponse.json

@@ -125,8 +125,12 @@
           ]
         },
         "defaultPrompt": {
+          "description": "Starter prompts for the plugin. Capped at 3 entries with a maximum of 128 characters per entry.",
+          "items": {
+            "type": "string"
+          },
           "type": [
-            "string",
+            "array",
             "null"
           ]
         },

codex-rs/app-server-protocol/schema/json/v2/ReviewStartResponse.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/ThreadForkParams.json

@@ -1,6 +1,14 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
   "definitions": {
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AskForApproval": {
       "oneOf": [
         {
@@ -79,6 +87,17 @@
         }
       ]
     },
+    "approvalsReviewer": {
+      "anyOf": [
+        {
+          "$ref": "#/definitions/ApprovalsReviewer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+    },
     "baseInstructions": {
       "type": [
         "string",

codex-rs/app-server-protocol/schema/json/v2/ThreadForkResponse.json

@@ -5,6 +5,14 @@
       "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
       "type": "string"
     },
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AskForApproval": {
       "oneOf": [
         {
@@ -209,6 +217,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",
@@ -1955,6 +1964,14 @@
     "approvalPolicy": {
       "$ref": "#/definitions/AskForApproval"
     },
+    "approvalsReviewer": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/ApprovalsReviewer"
+        }
+      ],
+      "description": "Reviewer currently used for approval requests on this thread."
+    },
     "cwd": {
       "type": "string"
     },
@@ -1993,6 +2010,7 @@
   },
   "required": [
     "approvalPolicy",
+    "approvalsReviewer",
     "cwd",
     "model",
     "modelProvider",

codex-rs/app-server-protocol/schema/json/v2/ThreadListResponse.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/ThreadMetadataUpdateResponse.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/ThreadReadResponse.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/ThreadResumeParams.json

@@ -1,6 +1,14 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
   "definitions": {
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AskForApproval": {
       "oneOf": [
         {
@@ -1002,6 +1010,17 @@
         }
       ]
     },
+    "approvalsReviewer": {
+      "anyOf": [
+        {
+          "$ref": "#/definitions/ApprovalsReviewer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+    },
     "baseInstructions": {
       "type": [
         "string",

codex-rs/app-server-protocol/schema/json/v2/ThreadResumeResponse.json

@@ -5,6 +5,14 @@
       "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
       "type": "string"
     },
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AskForApproval": {
       "oneOf": [
         {
@@ -209,6 +217,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",
@@ -1955,6 +1964,14 @@
     "approvalPolicy": {
       "$ref": "#/definitions/AskForApproval"
     },
+    "approvalsReviewer": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/ApprovalsReviewer"
+        }
+      ],
+      "description": "Reviewer currently used for approval requests on this thread."
+    },
     "cwd": {
       "type": "string"
     },
@@ -1993,6 +2010,7 @@
   },
   "required": [
     "approvalPolicy",
+    "approvalsReviewer",
     "cwd",
     "model",
     "modelProvider",

codex-rs/app-server-protocol/schema/json/v2/ThreadRollbackResponse.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/ThreadStartParams.json

@@ -1,6 +1,14 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
   "definitions": {
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AskForApproval": {
       "oneOf": [
         {
@@ -53,6 +61,9 @@
     },
     "DynamicToolSpec": {
       "properties": {
+        "deferLoading": {
+          "type": "boolean"
+        },
         "description": {
           "type": "string"
         },
@@ -103,6 +114,17 @@
         }
       ]
     },
+    "approvalsReviewer": {
+      "anyOf": [
+        {
+          "$ref": "#/definitions/ApprovalsReviewer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Override where approval requests are routed for review on this thread and subsequent turns."
+    },
     "baseInstructions": {
       "type": [
         "string",

codex-rs/app-server-protocol/schema/json/v2/ThreadStartResponse.json

@@ -5,6 +5,14 @@
       "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
       "type": "string"
     },
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AskForApproval": {
       "oneOf": [
         {
@@ -209,6 +217,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",
@@ -1955,6 +1964,14 @@
     "approvalPolicy": {
       "$ref": "#/definitions/AskForApproval"
     },
+    "approvalsReviewer": {
+      "allOf": [
+        {
+          "$ref": "#/definitions/ApprovalsReviewer"
+        }
+      ],
+      "description": "Reviewer currently used for approval requests on this thread."
+    },
     "cwd": {
       "type": "string"
     },
@@ -1993,6 +2010,7 @@
   },
   "required": [
     "approvalPolicy",
+    "approvalsReviewer",
     "cwd",
     "model",
     "modelProvider",

codex-rs/app-server-protocol/schema/json/v2/ThreadStartedNotification.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/ThreadUnarchiveResponse.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/TurnCompletedNotification.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/TurnStartParams.json

@@ -5,6 +5,14 @@
       "description": "A path that is guaranteed to be absolute and normalized (though it is not guaranteed to be canonicalized or exist on the filesystem).\n\nIMPORTANT: When deserializing an `AbsolutePathBuf`, a base path must be set using [AbsolutePathBufGuard::new]. If no base path is set, the deserialization will fail unless the path being deserialized is already absolute.",
       "type": "string"
     },
+    "ApprovalsReviewer": {
+      "description": "Configures who approval requests are routed to for review. Examples include sandbox escapes, blocked network access, MCP approval prompts, and ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully prompted subagent to gather relevant context and apply a risk-based decision framework before approving or denying the request.",
+      "enum": [
+        "user",
+        "guardian_subagent"
+      ],
+      "type": "string"
+    },
     "AskForApproval": {
       "oneOf": [
         {
@@ -502,6 +510,17 @@
       ],
       "description": "Override the approval policy for this turn and subsequent turns."
     },
+    "approvalsReviewer": {
+      "anyOf": [
+        {
+          "$ref": "#/definitions/ApprovalsReviewer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Override where approval requests are routed for review on this turn and subsequent turns."
+    },
     "cwd": {
       "description": "Override the working directory for this turn and subsequent turns.",
       "type": [

codex-rs/app-server-protocol/schema/json/v2/TurnStartResponse.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/json/v2/TurnStartedNotification.json

@@ -155,6 +155,7 @@
       "enum": [
         "pendingInit",
         "running",
+        "interrupted",
         "completed",
         "errored",
         "shutdown",

codex-rs/app-server-protocol/schema/typescript/ClientRequest.ts

@@ -20,6 +20,13 @@ import type { ExperimentalFeatureListParams } from "./v2/ExperimentalFeatureList
 import type { ExternalAgentConfigDetectParams } from "./v2/ExternalAgentConfigDetectParams";
 import type { ExternalAgentConfigImportParams } from "./v2/ExternalAgentConfigImportParams";
 import type { FeedbackUploadParams } from "./v2/FeedbackUploadParams";
+import type { FsCopyParams } from "./v2/FsCopyParams";
+import type { FsCreateDirectoryParams } from "./v2/FsCreateDirectoryParams";
+import type { FsGetMetadataParams } from "./v2/FsGetMetadataParams";
+import type { FsReadDirectoryParams } from "./v2/FsReadDirectoryParams";
+import type { FsReadFileParams } from "./v2/FsReadFileParams";
+import type { FsRemoveParams } from "./v2/FsRemoveParams";
+import type { FsWriteFileParams } from "./v2/FsWriteFileParams";
 import type { GetAccountParams } from "./v2/GetAccountParams";
 import type { ListMcpServerStatusParams } from "./v2/ListMcpServerStatusParams";
 import type { LoginAccountParams } from "./v2/LoginAccountParams";
@@ -55,4 +62,4 @@ import type { WindowsSandboxSetupStartParams } from "./v2/WindowsSandboxSetupSta
 /**
  * Request from the client to the server.
  */
-export type ClientRequest ={ "method": "initialize", id: RequestId, params: InitializeParams, } | { "method": "thread/start", id: RequestId, params: ThreadStartParams, } | { "method": "thread/resume", id: RequestId, params: ThreadResumeParams, } | { "method": "thread/fork", id: RequestId, params: ThreadForkParams, } | { "method": "thread/archive", id: RequestId, params: ThreadArchiveParams, } | { "method": "thread/unsubscribe", id: RequestId, params: ThreadUnsubscribeParams, } | { "method": "thread/name/set", id: RequestId, params: ThreadSetNameParams, } | { "method": "thread/metadata/update", id: RequestId, params: ThreadMetadataUpdateParams, } | { "method": "thread/unarchive", id: RequestId, params: ThreadUnarchiveParams, } | { "method": "thread/compact/start", id: RequestId, params: ThreadCompactStartParams, } | { "method": "thread/rollback", id: RequestId, params: ThreadRollbackParams, } | { "method": "thread/list", id: RequestId, params: ThreadListParams, } | { "method": "thread/loaded/list", id: RequestId, params: ThreadLoadedListParams, } | { "method": "thread/read", id: RequestId, params: ThreadReadParams, } | { "method": "skills/list", id: RequestId, params: SkillsListParams, } | { "method": "plugin/list", id: RequestId, params: PluginListParams, } | { "method": "plugin/read", id: RequestId, params: PluginReadParams, } | { "method": "skills/remote/list", id: RequestId, params: SkillsRemoteReadParams, } | { "method": "skills/remote/export", id: RequestId, params: SkillsRemoteWriteParams, } | { "method": "app/list", id: RequestId, params: AppsListParams, } | { "method": "skills/config/write", id: RequestId, params: SkillsConfigWriteParams, } | { "method": "plugin/install", id: RequestId, params: PluginInstallParams, } | { "method": "plugin/uninstall", id: RequestId, params: PluginUninstallParams, } | { "method": "turn/start", id: RequestId, params: TurnStartParams, } | { "method": "turn/steer", id: RequestId, params: TurnSteerParams, } | { "method": "turn/interrupt", id: RequestId, params: TurnInterruptParams, } | { "method": "review/start", id: RequestId, params: ReviewStartParams, } | { "method": "model/list", id: RequestId, params: ModelListParams, } | { "method": "experimentalFeature/list", id: RequestId, params: ExperimentalFeatureListParams, } | { "method": "mcpServer/oauth/login", id: RequestId, params: McpServerOauthLoginParams, } | { "method": "config/mcpServer/reload", id: RequestId, params: undefined, } | { "method": "mcpServerStatus/list", id: RequestId, params: ListMcpServerStatusParams, } | { "method": "windowsSandbox/setupStart", id: RequestId, params: WindowsSandboxSetupStartParams, } | { "method": "account/login/start", id: RequestId, params: LoginAccountParams, } | { "method": "account/login/cancel", id: RequestId, params: CancelLoginAccountParams, } | { "method": "account/logout", id: RequestId, params: undefined, } | { "method": "account/rateLimits/read", id: RequestId, params: undefined, } | { "method": "feedback/upload", id: RequestId, params: FeedbackUploadParams, } | { "method": "command/exec", id: RequestId, params: CommandExecParams, } | { "method": "command/exec/write", id: RequestId, params: CommandExecWriteParams, } | { "method": "command/exec/terminate", id: RequestId, params: CommandExecTerminateParams, } | { "method": "command/exec/resize", id: RequestId, params: CommandExecResizeParams, } | { "method": "config/read", id: RequestId, params: ConfigReadParams, } | { "method": "externalAgentConfig/detect", id: RequestId, params: ExternalAgentConfigDetectParams, } | { "method": "externalAgentConfig/import", id: RequestId, params: ExternalAgentConfigImportParams, } | { "method": "config/value/write", id: RequestId, params: ConfigValueWriteParams, } | { "method": "config/batchWrite", id: RequestId, params: ConfigBatchWriteParams, } | { "method": "configRequirements/read", id: RequestId, params: undefined, } | { "method": "account/read", id: RequestId, params: GetAccountParams, } | { "method": "getConversationSummary", id: RequestId, params: GetConversationSummaryParams, } | { "method": "gitDiffToRemote", id: RequestId, params: GitDiffToRemoteParams, } | { "method": "getAuthStatus", id: RequestId, params: GetAuthStatusParams, } | { "method": "fuzzyFileSearch", id: RequestId, params: FuzzyFileSearchParams, };
+export type ClientRequest ={ "method": "initialize", id: RequestId, params: InitializeParams, } | { "method": "thread/start", id: RequestId, params: ThreadStartParams, } | { "method": "thread/resume", id: RequestId, params: ThreadResumeParams, } | { "method": "thread/fork", id: RequestId, params: ThreadForkParams, } | { "method": "thread/archive", id: RequestId, params: ThreadArchiveParams, } | { "method": "thread/unsubscribe", id: RequestId, params: ThreadUnsubscribeParams, } | { "method": "thread/name/set", id: RequestId, params: ThreadSetNameParams, } | { "method": "thread/metadata/update", id: RequestId, params: ThreadMetadataUpdateParams, } | { "method": "thread/unarchive", id: RequestId, params: ThreadUnarchiveParams, } | { "method": "thread/compact/start", id: RequestId, params: ThreadCompactStartParams, } | { "method": "thread/rollback", id: RequestId, params: ThreadRollbackParams, } | { "method": "thread/list", id: RequestId, params: ThreadListParams, } | { "method": "thread/loaded/list", id: RequestId, params: ThreadLoadedListParams, } | { "method": "thread/read", id: RequestId, params: ThreadReadParams, } | { "method": "skills/list", id: RequestId, params: SkillsListParams, } | { "method": "plugin/list", id: RequestId, params: PluginListParams, } | { "method": "plugin/read", id: RequestId, params: PluginReadParams, } | { "method": "skills/remote/list", id: RequestId, params: SkillsRemoteReadParams, } | { "method": "skills/remote/export", id: RequestId, params: SkillsRemoteWriteParams, } | { "method": "app/list", id: RequestId, params: AppsListParams, } | { "method": "fs/readFile", id: RequestId, params: FsReadFileParams, } | { "method": "fs/writeFile", id: RequestId, params: FsWriteFileParams, } | { "method": "fs/createDirectory", id: RequestId, params: FsCreateDirectoryParams, } | { "method": "fs/getMetadata", id: RequestId, params: FsGetMetadataParams, } | { "method": "fs/readDirectory", id: RequestId, params: FsReadDirectoryParams, } | { "method": "fs/remove", id: RequestId, params: FsRemoveParams, } | { "method": "fs/copy", id: RequestId, params: FsCopyParams, } | { "method": "skills/config/write", id: RequestId, params: SkillsConfigWriteParams, } | { "method": "plugin/install", id: RequestId, params: PluginInstallParams, } | { "method": "plugin/uninstall", id: RequestId, params: PluginUninstallParams, } | { "method": "turn/start", id: RequestId, params: TurnStartParams, } | { "method": "turn/steer", id: RequestId, params: TurnSteerParams, } | { "method": "turn/interrupt", id: RequestId, params: TurnInterruptParams, } | { "method": "review/start", id: RequestId, params: ReviewStartParams, } | { "method": "model/list", id: RequestId, params: ModelListParams, } | { "method": "experimentalFeature/list", id: RequestId, params: ExperimentalFeatureListParams, } | { "method": "mcpServer/oauth/login", id: RequestId, params: McpServerOauthLoginParams, } | { "method": "config/mcpServer/reload", id: RequestId, params: undefined, } | { "method": "mcpServerStatus/list", id: RequestId, params: ListMcpServerStatusParams, } | { "method": "windowsSandbox/setupStart", id: RequestId, params: WindowsSandboxSetupStartParams, } | { "method": "account/login/start", id: RequestId, params: LoginAccountParams, } | { "method": "account/login/cancel", id: RequestId, params: CancelLoginAccountParams, } | { "method": "account/logout", id: RequestId, params: undefined, } | { "method": "account/rateLimits/read", id: RequestId, params: undefined, } | { "method": "feedback/upload", id: RequestId, params: FeedbackUploadParams, } | { "method": "command/exec", id: RequestId, params: CommandExecParams, } | { "method": "command/exec/write", id: RequestId, params: CommandExecWriteParams, } | { "method": "command/exec/terminate", id: RequestId, params: CommandExecTerminateParams, } | { "method": "command/exec/resize", id: RequestId, params: CommandExecResizeParams, } | { "method": "config/read", id: RequestId, params: ConfigReadParams, } | { "method": "externalAgentConfig/detect", id: RequestId, params: ExternalAgentConfigDetectParams, } | { "method": "externalAgentConfig/import", id: RequestId, params: ExternalAgentConfigImportParams, } | { "method": "config/value/write", id: RequestId, params: ConfigValueWriteParams, } | { "method": "config/batchWrite", id: RequestId, params: ConfigBatchWriteParams, } | { "method": "configRequirements/read", id: RequestId, params: undefined, } | { "method": "account/read", id: RequestId, params: GetAccountParams, } | { "method": "getConversationSummary", id: RequestId, params: GetConversationSummaryParams, } | { "method": "gitDiffToRemote", id: RequestId, params: GitDiffToRemoteParams, } | { "method": "getAuthStatus", id: RequestId, params: GetAuthStatusParams, } | { "method": "fuzzyFileSearch", id: RequestId, params: FuzzyFileSearchParams, };

codex-rs/app-server-protocol/schema/typescript/InitializeResponse.ts

@@ -2,4 +2,14 @@
 
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 
-export type InitializeResponse = { userAgent: string, };
+export type InitializeResponse = { userAgent: string, 
+/**
+ * Platform family for the running app-server target, for example
+ * `"unix"` or `"windows"`.
+ */
+platformFamily: string, 
+/**
+ * Operating system for the running app-server target, for example
+ * `"macos"`, `"linux"`, or `"windows"`.
+ */
+platformOs: string, };

codex-rs/app-server-protocol/schema/typescript/ServerNotification.ts

@@ -18,6 +18,8 @@ import type { FileChangeOutputDeltaNotification } from "./v2/FileChangeOutputDel
 import type { HookCompletedNotification } from "./v2/HookCompletedNotification";
 import type { HookStartedNotification } from "./v2/HookStartedNotification";
 import type { ItemCompletedNotification } from "./v2/ItemCompletedNotification";
+import type { ItemGuardianApprovalReviewCompletedNotification } from "./v2/ItemGuardianApprovalReviewCompletedNotification";
+import type { ItemGuardianApprovalReviewStartedNotification } from "./v2/ItemGuardianApprovalReviewStartedNotification";
 import type { ItemStartedNotification } from "./v2/ItemStartedNotification";
 import type { McpServerOauthLoginCompletedNotification } from "./v2/McpServerOauthLoginCompletedNotification";
 import type { McpToolCallProgressNotification } from "./v2/McpToolCallProgressNotification";
@@ -52,4 +54,4 @@ import type { WindowsWorldWritableWarningNotification } from "./v2/WindowsWorldW
 /**
  * Notification sent from the server to the client.
  */
-export type ServerNotification = { "method": "error", "params": ErrorNotification } | { "method": "thread/started", "params": ThreadStartedNotification } | { "method": "thread/status/changed", "params": ThreadStatusChangedNotification } | { "method": "thread/archived", "params": ThreadArchivedNotification } | { "method": "thread/unarchived", "params": ThreadUnarchivedNotification } | { "method": "thread/closed", "params": ThreadClosedNotification } | { "method": "skills/changed", "params": SkillsChangedNotification } | { "method": "thread/name/updated", "params": ThreadNameUpdatedNotification } | { "method": "thread/tokenUsage/updated", "params": ThreadTokenUsageUpdatedNotification } | { "method": "turn/started", "params": TurnStartedNotification } | { "method": "hook/started", "params": HookStartedNotification } | { "method": "turn/completed", "params": TurnCompletedNotification } | { "method": "hook/completed", "params": HookCompletedNotification } | { "method": "turn/diff/updated", "params": TurnDiffUpdatedNotification } | { "method": "turn/plan/updated", "params": TurnPlanUpdatedNotification } | { "method": "item/started", "params": ItemStartedNotification } | { "method": "item/completed", "params": ItemCompletedNotification } | { "method": "rawResponseItem/completed", "params": RawResponseItemCompletedNotification } | { "method": "item/agentMessage/delta", "params": AgentMessageDeltaNotification } | { "method": "item/plan/delta", "params": PlanDeltaNotification } | { "method": "command/exec/outputDelta", "params": CommandExecOutputDeltaNotification } | { "method": "item/commandExecution/outputDelta", "params": CommandExecutionOutputDeltaNotification } | { "method": "item/commandExecution/terminalInteraction", "params": TerminalInteractionNotification } | { "method": "item/fileChange/outputDelta", "params": FileChangeOutputDeltaNotification } | { "method": "serverRequest/resolved", "params": ServerRequestResolvedNotification } | { "method": "item/mcpToolCall/progress", "params": McpToolCallProgressNotification } | { "method": "mcpServer/oauthLogin/completed", "params": McpServerOauthLoginCompletedNotification } | { "method": "account/updated", "params": AccountUpdatedNotification } | { "method": "account/rateLimits/updated", "params": AccountRateLimitsUpdatedNotification } | { "method": "app/list/updated", "params": AppListUpdatedNotification } | { "method": "item/reasoning/summaryTextDelta", "params": ReasoningSummaryTextDeltaNotification } | { "method": "item/reasoning/summaryPartAdded", "params": ReasoningSummaryPartAddedNotification } | { "method": "item/reasoning/textDelta", "params": ReasoningTextDeltaNotification } | { "method": "thread/compacted", "params": ContextCompactedNotification } | { "method": "model/rerouted", "params": ModelReroutedNotification } | { "method": "deprecationNotice", "params": DeprecationNoticeNotification } | { "method": "configWarning", "params": ConfigWarningNotification } | { "method": "fuzzyFileSearch/sessionUpdated", "params": FuzzyFileSearchSessionUpdatedNotification } | { "method": "fuzzyFileSearch/sessionCompleted", "params": FuzzyFileSearchSessionCompletedNotification } | { "method": "thread/realtime/started", "params": ThreadRealtimeStartedNotification } | { "method": "thread/realtime/itemAdded", "params": ThreadRealtimeItemAddedNotification } | { "method": "thread/realtime/outputAudio/delta", "params": ThreadRealtimeOutputAudioDeltaNotification } | { "method": "thread/realtime/error", "params": ThreadRealtimeErrorNotification } | { "method": "thread/realtime/closed", "params": ThreadRealtimeClosedNotification } | { "method": "windows/worldWritableWarning", "params": WindowsWorldWritableWarningNotification } | { "method": "windowsSandbox/setupCompleted", "params": WindowsSandboxSetupCompletedNotification } | { "method": "account/login/completed", "params": AccountLoginCompletedNotification };
+export type ServerNotification = { "method": "error", "params": ErrorNotification } | { "method": "thread/started", "params": ThreadStartedNotification } | { "method": "thread/status/changed", "params": ThreadStatusChangedNotification } | { "method": "thread/archived", "params": ThreadArchivedNotification } | { "method": "thread/unarchived", "params": ThreadUnarchivedNotification } | { "method": "thread/closed", "params": ThreadClosedNotification } | { "method": "skills/changed", "params": SkillsChangedNotification } | { "method": "thread/name/updated", "params": ThreadNameUpdatedNotification } | { "method": "thread/tokenUsage/updated", "params": ThreadTokenUsageUpdatedNotification } | { "method": "turn/started", "params": TurnStartedNotification } | { "method": "hook/started", "params": HookStartedNotification } | { "method": "turn/completed", "params": TurnCompletedNotification } | { "method": "hook/completed", "params": HookCompletedNotification } | { "method": "turn/diff/updated", "params": TurnDiffUpdatedNotification } | { "method": "turn/plan/updated", "params": TurnPlanUpdatedNotification } | { "method": "item/started", "params": ItemStartedNotification } | { "method": "item/autoApprovalReview/started", "params": ItemGuardianApprovalReviewStartedNotification } | { "method": "item/autoApprovalReview/completed", "params": ItemGuardianApprovalReviewCompletedNotification } | { "method": "item/completed", "params": ItemCompletedNotification } | { "method": "rawResponseItem/completed", "params": RawResponseItemCompletedNotification } | { "method": "item/agentMessage/delta", "params": AgentMessageDeltaNotification } | { "method": "item/plan/delta", "params": PlanDeltaNotification } | { "method": "command/exec/outputDelta", "params": CommandExecOutputDeltaNotification } | { "method": "item/commandExecution/outputDelta", "params": CommandExecutionOutputDeltaNotification } | { "method": "item/commandExecution/terminalInteraction", "params": TerminalInteractionNotification } | { "method": "item/fileChange/outputDelta", "params": FileChangeOutputDeltaNotification } | { "method": "serverRequest/resolved", "params": ServerRequestResolvedNotification } | { "method": "item/mcpToolCall/progress", "params": McpToolCallProgressNotification } | { "method": "mcpServer/oauthLogin/completed", "params": McpServerOauthLoginCompletedNotification } | { "method": "account/updated", "params": AccountUpdatedNotification } | { "method": "account/rateLimits/updated", "params": AccountRateLimitsUpdatedNotification } | { "method": "app/list/updated", "params": AppListUpdatedNotification } | { "method": "item/reasoning/summaryTextDelta", "params": ReasoningSummaryTextDeltaNotification } | { "method": "item/reasoning/summaryPartAdded", "params": ReasoningSummaryPartAddedNotification } | { "method": "item/reasoning/textDelta", "params": ReasoningTextDeltaNotification } | { "method": "thread/compacted", "params": ContextCompactedNotification } | { "method": "model/rerouted", "params": ModelReroutedNotification } | { "method": "deprecationNotice", "params": DeprecationNoticeNotification } | { "method": "configWarning", "params": ConfigWarningNotification } | { "method": "fuzzyFileSearch/sessionUpdated", "params": FuzzyFileSearchSessionUpdatedNotification } | { "method": "fuzzyFileSearch/sessionCompleted", "params": FuzzyFileSearchSessionCompletedNotification } | { "method": "thread/realtime/started", "params": ThreadRealtimeStartedNotification } | { "method": "thread/realtime/itemAdded", "params": ThreadRealtimeItemAddedNotification } | { "method": "thread/realtime/outputAudio/delta", "params": ThreadRealtimeOutputAudioDeltaNotification } | { "method": "thread/realtime/error", "params": ThreadRealtimeErrorNotification } | { "method": "thread/realtime/closed", "params": ThreadRealtimeClosedNotification } | { "method": "windows/worldWritableWarning", "params": WindowsWorldWritableWarningNotification } | { "method": "windowsSandbox/setupCompleted", "params": WindowsSandboxSetupCompletedNotification } | { "method": "account/login/completed", "params": AccountLoginCompletedNotification };

codex-rs/app-server-protocol/schema/typescript/v2/ApprovalsReviewer.ts

@@ -0,0 +1,12 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Configures who approval requests are routed to for review. Examples
+ * include sandbox escapes, blocked network access, MCP approval prompts, and
+ * ARC escalations. Defaults to `user`. `guardian_subagent` uses a carefully
+ * prompted subagent to gather relevant context and apply a risk-based
+ * decision framework before approving or denying the request.
+ */
+export type ApprovalsReviewer = "user" | "guardian_subagent";

codex-rs/app-server-protocol/schema/typescript/v2/CollabAgentStatus.ts

@@ -2,4 +2,4 @@
 
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 
-export type CollabAgentStatus = "pendingInit" | "running" | "completed" | "errored" | "shutdown" | "notFound";
+export type CollabAgentStatus = "pendingInit" | "running" | "interrupted" | "completed" | "errored" | "shutdown" | "notFound";

codex-rs/app-server-protocol/schema/typescript/v2/Config.ts

@@ -9,10 +9,15 @@ import type { Verbosity } from "../Verbosity";
 import type { WebSearchMode } from "../WebSearchMode";
 import type { JsonValue } from "../serde_json/JsonValue";
 import type { AnalyticsConfig } from "./AnalyticsConfig";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { ProfileV2 } from "./ProfileV2";
 import type { SandboxMode } from "./SandboxMode";
 import type { SandboxWorkspaceWrite } from "./SandboxWorkspaceWrite";
 import type { ToolsV2 } from "./ToolsV2";
 
-export type Config = {model: string | null, review_model: string | null, model_context_window: bigint | null, model_auto_compact_token_limit: bigint | null, model_provider: string | null, approval_policy: AskForApproval | null, sandbox_mode: SandboxMode | null, sandbox_workspace_write: SandboxWorkspaceWrite | null, forced_chatgpt_workspace_id: string | null, forced_login_method: ForcedLoginMethod | null, web_search: WebSearchMode | null, tools: ToolsV2 | null, profile: string | null, profiles: { [key in string]?: ProfileV2 }, instructions: string | null, developer_instructions: string | null, compact_prompt: string | null, model_reasoning_effort: ReasoningEffort | null, model_reasoning_summary: ReasoningSummary | null, model_verbosity: Verbosity | null, service_tier: ServiceTier | null, analytics: AnalyticsConfig | null} & ({ [key in string]?: number | string | boolean | Array<JsonValue> | { [key in string]?: JsonValue } | null });
+export type Config = {model: string | null, review_model: string | null, model_context_window: bigint | null, model_auto_compact_token_limit: bigint | null, model_provider: string | null, approval_policy: AskForApproval | null, /**
+ * [UNSTABLE] Optional default for where approval requests are routed for
+ * review.
+ */
+approvals_reviewer: ApprovalsReviewer | null, sandbox_mode: SandboxMode | null, sandbox_workspace_write: SandboxWorkspaceWrite | null, forced_chatgpt_workspace_id: string | null, forced_login_method: ForcedLoginMethod | null, web_search: WebSearchMode | null, tools: ToolsV2 | null, profile: string | null, profiles: { [key in string]?: ProfileV2 }, instructions: string | null, developer_instructions: string | null, compact_prompt: string | null, model_reasoning_effort: ReasoningEffort | null, model_reasoning_summary: ReasoningSummary | null, model_verbosity: Verbosity | null, service_tier: ServiceTier | null, analytics: AnalyticsConfig | null} & ({ [key in string]?: number | string | boolean | Array<JsonValue> | { [key in string]?: JsonValue } | null });

codex-rs/app-server-protocol/schema/typescript/v2/DynamicToolSpec.ts

@@ -3,4 +3,4 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { JsonValue } from "../serde_json/JsonValue";
 
-export type DynamicToolSpec = { name: string, description: string, inputSchema: JsonValue, };
+export type DynamicToolSpec = { name: string, description: string, inputSchema: JsonValue, deferLoading?: boolean, };

codex-rs/app-server-protocol/schema/typescript/v2/FsCopyParams.ts

@@ -0,0 +1,21 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { AbsolutePathBuf } from "../AbsolutePathBuf";
+
+/**
+ * Copy a file or directory tree on the host filesystem.
+ */
+export type FsCopyParams = { 
+/**
+ * Absolute source path.
+ */
+sourcePath: AbsolutePathBuf, 
+/**
+ * Absolute destination path.
+ */
+destinationPath: AbsolutePathBuf, 
+/**
+ * Required for directory copies; ignored for file copies.
+ */
+recursive?: boolean, };

codex-rs/app-server-protocol/schema/typescript/v2/FsCopyResponse.ts

@@ -0,0 +1,8 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Successful response for `fs/copy`.
+ */
+export type FsCopyResponse = Record<string, never>;

codex-rs/app-server-protocol/schema/typescript/v2/FsCreateDirectoryParams.ts

@@ -0,0 +1,17 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { AbsolutePathBuf } from "../AbsolutePathBuf";
+
+/**
+ * Create a directory on the host filesystem.
+ */
+export type FsCreateDirectoryParams = { 
+/**
+ * Absolute directory path to create.
+ */
+path: AbsolutePathBuf, 
+/**
+ * Whether parent directories should also be created. Defaults to `true`.
+ */
+recursive?: boolean | null, };

codex-rs/app-server-protocol/schema/typescript/v2/FsCreateDirectoryResponse.ts

@@ -0,0 +1,8 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Successful response for `fs/createDirectory`.
+ */
+export type FsCreateDirectoryResponse = Record<string, never>;

codex-rs/app-server-protocol/schema/typescript/v2/FsGetMetadataParams.ts

@@ -0,0 +1,13 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { AbsolutePathBuf } from "../AbsolutePathBuf";
+
+/**
+ * Request metadata for an absolute path.
+ */
+export type FsGetMetadataParams = { 
+/**
+ * Absolute path to inspect.
+ */
+path: AbsolutePathBuf, };

codex-rs/app-server-protocol/schema/typescript/v2/FsGetMetadataResponse.ts

@@ -0,0 +1,24 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Metadata returned by `fs/getMetadata`.
+ */
+export type FsGetMetadataResponse = { 
+/**
+ * Whether the path currently resolves to a directory.
+ */
+isDirectory: boolean, 
+/**
+ * Whether the path currently resolves to a regular file.
+ */
+isFile: boolean, 
+/**
+ * File creation time in Unix milliseconds when available, otherwise `0`.
+ */
+createdAtMs: number, 
+/**
+ * File modification time in Unix milliseconds when available, otherwise `0`.
+ */
+modifiedAtMs: number, };

codex-rs/app-server-protocol/schema/typescript/v2/FsReadDirectoryEntry.ts

@@ -0,0 +1,20 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * A directory entry returned by `fs/readDirectory`.
+ */
+export type FsReadDirectoryEntry = { 
+/**
+ * Direct child entry name only, not an absolute or relative path.
+ */
+fileName: string, 
+/**
+ * Whether this entry resolves to a directory.
+ */
+isDirectory: boolean, 
+/**
+ * Whether this entry resolves to a regular file.
+ */
+isFile: boolean, };

codex-rs/app-server-protocol/schema/typescript/v2/FsReadDirectoryParams.ts

@@ -0,0 +1,13 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { AbsolutePathBuf } from "../AbsolutePathBuf";
+
+/**
+ * List direct child names for a directory.
+ */
+export type FsReadDirectoryParams = { 
+/**
+ * Absolute directory path to read.
+ */
+path: AbsolutePathBuf, };

codex-rs/app-server-protocol/schema/typescript/v2/FsReadDirectoryResponse.ts

@@ -0,0 +1,13 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { FsReadDirectoryEntry } from "./FsReadDirectoryEntry";
+
+/**
+ * Directory entries returned by `fs/readDirectory`.
+ */
+export type FsReadDirectoryResponse = { 
+/**
+ * Direct child entries in the requested directory.
+ */
+entries: Array<FsReadDirectoryEntry>, };

codex-rs/app-server-protocol/schema/typescript/v2/FsReadFileParams.ts

@@ -0,0 +1,13 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { AbsolutePathBuf } from "../AbsolutePathBuf";
+
+/**
+ * Read a file from the host filesystem.
+ */
+export type FsReadFileParams = { 
+/**
+ * Absolute path to read.
+ */
+path: AbsolutePathBuf, };

codex-rs/app-server-protocol/schema/typescript/v2/FsReadFileResponse.ts

@@ -0,0 +1,12 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Base64-encoded file contents returned by `fs/readFile`.
+ */
+export type FsReadFileResponse = { 
+/**
+ * File contents encoded as base64.
+ */
+dataBase64: string, };

codex-rs/app-server-protocol/schema/typescript/v2/FsRemoveParams.ts

@@ -0,0 +1,21 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { AbsolutePathBuf } from "../AbsolutePathBuf";
+
+/**
+ * Remove a file or directory tree from the host filesystem.
+ */
+export type FsRemoveParams = { 
+/**
+ * Absolute path to remove.
+ */
+path: AbsolutePathBuf, 
+/**
+ * Whether directory removal should recurse. Defaults to `true`.
+ */
+recursive?: boolean | null, 
+/**
+ * Whether missing paths should be ignored. Defaults to `true`.
+ */
+force?: boolean | null, };

codex-rs/app-server-protocol/schema/typescript/v2/FsRemoveResponse.ts

@@ -0,0 +1,8 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Successful response for `fs/remove`.
+ */
+export type FsRemoveResponse = Record<string, never>;

codex-rs/app-server-protocol/schema/typescript/v2/FsWriteFileParams.ts

@@ -0,0 +1,17 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { AbsolutePathBuf } from "../AbsolutePathBuf";
+
+/**
+ * Write a file on the host filesystem.
+ */
+export type FsWriteFileParams = { 
+/**
+ * Absolute path to write.
+ */
+path: AbsolutePathBuf, 
+/**
+ * File contents encoded as base64.
+ */
+dataBase64: string, };

codex-rs/app-server-protocol/schema/typescript/v2/FsWriteFileResponse.ts

@@ -0,0 +1,8 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Successful response for `fs/writeFile`.
+ */
+export type FsWriteFileResponse = Record<string, never>;

codex-rs/app-server-protocol/schema/typescript/v2/GrantedMacOsPermissions.ts

@@ -1,8 +0,0 @@
-// GENERATED CODE! DO NOT MODIFY BY HAND!
-
-// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
-import type { MacOsAutomationPermission } from "../MacOsAutomationPermission";
-import type { MacOsContactsPermission } from "../MacOsContactsPermission";
-import type { MacOsPreferencesPermission } from "../MacOsPreferencesPermission";
-
-export type GrantedMacOsPermissions = { preferences?: MacOsPreferencesPermission, automations?: MacOsAutomationPermission, launchServices?: boolean, accessibility?: boolean, calendar?: boolean, reminders?: boolean, contacts?: MacOsContactsPermission, };

codex-rs/app-server-protocol/schema/typescript/v2/GrantedPermissionProfile.ts

@@ -3,6 +3,5 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { AdditionalFileSystemPermissions } from "./AdditionalFileSystemPermissions";
 import type { AdditionalNetworkPermissions } from "./AdditionalNetworkPermissions";
-import type { GrantedMacOsPermissions } from "./GrantedMacOsPermissions";
 
-export type GrantedPermissionProfile = { network?: AdditionalNetworkPermissions, fileSystem?: AdditionalFileSystemPermissions, macos?: GrantedMacOsPermissions, };
+export type GrantedPermissionProfile = { network?: AdditionalNetworkPermissions, fileSystem?: AdditionalFileSystemPermissions, };

codex-rs/app-server-protocol/schema/typescript/v2/GuardianApprovalReview.ts

@@ -0,0 +1,12 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { GuardianApprovalReviewStatus } from "./GuardianApprovalReviewStatus";
+import type { GuardianRiskLevel } from "./GuardianRiskLevel";
+
+/**
+ * [UNSTABLE] Temporary guardian approval review payload used by
+ * `item/autoApprovalReview/*` notifications. This shape is expected to change
+ * soon.
+ */
+export type GuardianApprovalReview = { status: GuardianApprovalReviewStatus, riskScore: number | null, riskLevel: GuardianRiskLevel | null, rationale: string | null, };

codex-rs/app-server-protocol/schema/typescript/v2/GuardianApprovalReviewStatus.ts

@@ -0,0 +1,8 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * [UNSTABLE] Lifecycle state for a guardian approval review.
+ */
+export type GuardianApprovalReviewStatus = "inProgress" | "approved" | "denied" | "aborted";

codex-rs/app-server-protocol/schema/typescript/v2/GuardianRiskLevel.ts

@@ -0,0 +1,8 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * [UNSTABLE] Risk level assigned by guardian approval review.
+ */
+export type GuardianRiskLevel = "low" | "medium" | "high";

codex-rs/app-server-protocol/schema/typescript/v2/ItemGuardianApprovalReviewCompletedNotification.ts

@@ -0,0 +1,15 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { JsonValue } from "../serde_json/JsonValue";
+import type { GuardianApprovalReview } from "./GuardianApprovalReview";
+
+/**
+ * [UNSTABLE] Temporary notification payload for guardian automatic approval
+ * review. This shape is expected to change soon.
+ *
+ * TODO(ccunningham): Attach guardian review state to the reviewed tool item's
+ * lifecycle instead of sending separate standalone review notifications so the
+ * app-server API can persist and replay review state via `thread/read`.
+ */
+export type ItemGuardianApprovalReviewCompletedNotification = { threadId: string, turnId: string, targetItemId: string, review: GuardianApprovalReview, action: JsonValue | null, };

codex-rs/app-server-protocol/schema/typescript/v2/ItemGuardianApprovalReviewStartedNotification.ts

@@ -0,0 +1,15 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { JsonValue } from "../serde_json/JsonValue";
+import type { GuardianApprovalReview } from "./GuardianApprovalReview";
+
+/**
+ * [UNSTABLE] Temporary notification payload for guardian automatic approval
+ * review. This shape is expected to change soon.
+ *
+ * TODO(ccunningham): Attach guardian review state to the reviewed tool item's
+ * lifecycle instead of sending separate standalone review notifications so the
+ * app-server API can persist and replay review state via `thread/read`.
+ */
+export type ItemGuardianApprovalReviewStartedNotification = { threadId: string, turnId: string, targetItemId: string, review: GuardianApprovalReview, action: JsonValue | null, };

codex-rs/app-server-protocol/schema/typescript/v2/PermissionsRequestApprovalParams.ts

@@ -1,6 +1,6 @@
 // GENERATED CODE! DO NOT MODIFY BY HAND!
 
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
-import type { AdditionalPermissionProfile } from "./AdditionalPermissionProfile";
+import type { RequestPermissionProfile } from "./RequestPermissionProfile";
 
-export type PermissionsRequestApprovalParams = { threadId: string, turnId: string, itemId: string, reason: string | null, permissions: AdditionalPermissionProfile, };
+export type PermissionsRequestApprovalParams = { threadId: string, turnId: string, itemId: string, reason: string | null, permissions: RequestPermissionProfile, };

codex-rs/app-server-protocol/schema/typescript/v2/PluginInterface.ts

@@ -3,4 +3,9 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { AbsolutePathBuf } from "../AbsolutePathBuf";
 
-export type PluginInterface = { displayName: string | null, shortDescription: string | null, longDescription: string | null, developerName: string | null, category: string | null, capabilities: Array<string>, websiteUrl: string | null, privacyPolicyUrl: string | null, termsOfServiceUrl: string | null, defaultPrompt: string | null, brandColor: string | null, composerIcon: AbsolutePathBuf | null, logo: AbsolutePathBuf | null, screenshots: Array<AbsolutePathBuf>, };
+export type PluginInterface = { displayName: string | null, shortDescription: string | null, longDescription: string | null, developerName: string | null, category: string | null, capabilities: Array<string>, websiteUrl: string | null, privacyPolicyUrl: string | null, termsOfServiceUrl: string | null, 
+/**
+ * Starter prompts for the plugin. Capped at 3 entries with a maximum of
+ * 128 characters per entry.
+ */
+defaultPrompt: Array<string> | null, brandColor: string | null, composerIcon: AbsolutePathBuf | null, logo: AbsolutePathBuf | null, screenshots: Array<AbsolutePathBuf>, };

codex-rs/app-server-protocol/schema/typescript/v2/ProfileV2.ts

@@ -7,7 +7,13 @@ import type { ServiceTier } from "../ServiceTier";
 import type { Verbosity } from "../Verbosity";
 import type { WebSearchMode } from "../WebSearchMode";
 import type { JsonValue } from "../serde_json/JsonValue";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { ToolsV2 } from "./ToolsV2";
 
-export type ProfileV2 = { model: string | null, model_provider: string | null, approval_policy: AskForApproval | null, service_tier: ServiceTier | null, model_reasoning_effort: ReasoningEffort | null, model_reasoning_summary: ReasoningSummary | null, model_verbosity: Verbosity | null, web_search: WebSearchMode | null, tools: ToolsV2 | null, chatgpt_base_url: string | null, } & ({ [key in string]?: number | string | boolean | Array<JsonValue> | { [key in string]?: JsonValue } | null });
+export type ProfileV2 = {model: string | null, model_provider: string | null, approval_policy: AskForApproval | null, /**
+ * [UNSTABLE] Optional profile-level override for where approval requests
+ * are routed for review. If omitted, the enclosing config default is
+ * used.
+ */
+approvals_reviewer: ApprovalsReviewer | null, service_tier: ServiceTier | null, model_reasoning_effort: ReasoningEffort | null, model_reasoning_summary: ReasoningSummary | null, model_verbosity: Verbosity | null, web_search: WebSearchMode | null, tools: ToolsV2 | null, chatgpt_base_url: string | null} & ({ [key in string]?: number | string | boolean | Array<JsonValue> | { [key in string]?: JsonValue } | null });

codex-rs/app-server-protocol/schema/typescript/v2/RequestPermissionProfile.ts

@@ -0,0 +1,7 @@
+// GENERATED CODE! DO NOT MODIFY BY HAND!
+
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { AdditionalFileSystemPermissions } from "./AdditionalFileSystemPermissions";
+import type { AdditionalNetworkPermissions } from "./AdditionalNetworkPermissions";
+
+export type RequestPermissionProfile = { network: AdditionalNetworkPermissions | null, fileSystem: AdditionalFileSystemPermissions | null, };

codex-rs/app-server-protocol/schema/typescript/v2/ThreadForkParams.ts

@@ -3,6 +3,7 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { ServiceTier } from "../ServiceTier";
 import type { JsonValue } from "../serde_json/JsonValue";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { SandboxMode } from "./SandboxMode";
 
@@ -22,7 +23,11 @@ export type ThreadForkParams = {threadId: string, /**
 path?: string | null, /**
  * Configuration overrides for the forked thread, if any.
  */
-model?: string | null, modelProvider?: string | null, serviceTier?: ServiceTier | null | null, cwd?: string | null, approvalPolicy?: AskForApproval | null, sandbox?: SandboxMode | null, config?: { [key in string]?: JsonValue } | null, baseInstructions?: string | null, developerInstructions?: string | null, ephemeral?: boolean, /**
+model?: string | null, modelProvider?: string | null, serviceTier?: ServiceTier | null | null, cwd?: string | null, approvalPolicy?: AskForApproval | null, /**
+ * Override where approval requests are routed for review on this thread
+ * and subsequent turns.
+ */
+approvalsReviewer?: ApprovalsReviewer | null, sandbox?: SandboxMode | null, config?: { [key in string]?: JsonValue } | null, baseInstructions?: string | null, developerInstructions?: string | null, ephemeral?: boolean, /**
  * If true, persist additional rollout EventMsg variants required to
  * reconstruct a richer thread history on subsequent resume/fork/read.
  */

codex-rs/app-server-protocol/schema/typescript/v2/ThreadForkResponse.ts

@@ -3,8 +3,13 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { ReasoningEffort } from "../ReasoningEffort";
 import type { ServiceTier } from "../ServiceTier";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { SandboxPolicy } from "./SandboxPolicy";
 import type { Thread } from "./Thread";
 
-export type ThreadForkResponse = { thread: Thread, model: string, modelProvider: string, serviceTier: ServiceTier | null, cwd: string, approvalPolicy: AskForApproval, sandbox: SandboxPolicy, reasoningEffort: ReasoningEffort | null, };
+export type ThreadForkResponse = { thread: Thread, model: string, modelProvider: string, serviceTier: ServiceTier | null, cwd: string, approvalPolicy: AskForApproval, 
+/**
+ * Reviewer currently used for approval requests on this thread.
+ */
+approvalsReviewer: ApprovalsReviewer, sandbox: SandboxPolicy, reasoningEffort: ReasoningEffort | null, };

codex-rs/app-server-protocol/schema/typescript/v2/ThreadResumeParams.ts

@@ -5,6 +5,7 @@ import type { Personality } from "../Personality";
 import type { ResponseItem } from "../ResponseItem";
 import type { ServiceTier } from "../ServiceTier";
 import type { JsonValue } from "../serde_json/JsonValue";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { SandboxMode } from "./SandboxMode";
 
@@ -31,7 +32,11 @@ history?: Array<ResponseItem> | null, /**
 path?: string | null, /**
  * Configuration overrides for the resumed thread, if any.
  */
-model?: string | null, modelProvider?: string | null, serviceTier?: ServiceTier | null | null, cwd?: string | null, approvalPolicy?: AskForApproval | null, sandbox?: SandboxMode | null, config?: { [key in string]?: JsonValue } | null, baseInstructions?: string | null, developerInstructions?: string | null, personality?: Personality | null, /**
+model?: string | null, modelProvider?: string | null, serviceTier?: ServiceTier | null | null, cwd?: string | null, approvalPolicy?: AskForApproval | null, /**
+ * Override where approval requests are routed for review on this thread
+ * and subsequent turns.
+ */
+approvalsReviewer?: ApprovalsReviewer | null, sandbox?: SandboxMode | null, config?: { [key in string]?: JsonValue } | null, baseInstructions?: string | null, developerInstructions?: string | null, personality?: Personality | null, /**
  * If true, persist additional rollout EventMsg variants required to
  * reconstruct a richer thread history on subsequent resume/fork/read.
  */

codex-rs/app-server-protocol/schema/typescript/v2/ThreadResumeResponse.ts

@@ -3,8 +3,13 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { ReasoningEffort } from "../ReasoningEffort";
 import type { ServiceTier } from "../ServiceTier";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { SandboxPolicy } from "./SandboxPolicy";
 import type { Thread } from "./Thread";
 
-export type ThreadResumeResponse = { thread: Thread, model: string, modelProvider: string, serviceTier: ServiceTier | null, cwd: string, approvalPolicy: AskForApproval, sandbox: SandboxPolicy, reasoningEffort: ReasoningEffort | null, };
+export type ThreadResumeResponse = { thread: Thread, model: string, modelProvider: string, serviceTier: ServiceTier | null, cwd: string, approvalPolicy: AskForApproval, 
+/**
+ * Reviewer currently used for approval requests on this thread.
+ */
+approvalsReviewer: ApprovalsReviewer, sandbox: SandboxPolicy, reasoningEffort: ReasoningEffort | null, };

codex-rs/app-server-protocol/schema/typescript/v2/ThreadStartParams.ts

@@ -4,10 +4,15 @@
 import type { Personality } from "../Personality";
 import type { ServiceTier } from "../ServiceTier";
 import type { JsonValue } from "../serde_json/JsonValue";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { SandboxMode } from "./SandboxMode";
 
-export type ThreadStartParams = {model?: string | null, modelProvider?: string | null, serviceTier?: ServiceTier | null | null, cwd?: string | null, approvalPolicy?: AskForApproval | null, sandbox?: SandboxMode | null, config?: { [key in string]?: JsonValue } | null, serviceName?: string | null, baseInstructions?: string | null, developerInstructions?: string | null, personality?: Personality | null, ephemeral?: boolean | null, /**
+export type ThreadStartParams = {model?: string | null, modelProvider?: string | null, serviceTier?: ServiceTier | null | null, cwd?: string | null, approvalPolicy?: AskForApproval | null, /**
+ * Override where approval requests are routed for review on this thread
+ * and subsequent turns.
+ */
+approvalsReviewer?: ApprovalsReviewer | null, sandbox?: SandboxMode | null, config?: { [key in string]?: JsonValue } | null, serviceName?: string | null, baseInstructions?: string | null, developerInstructions?: string | null, personality?: Personality | null, ephemeral?: boolean | null, /**
  * If true, opt into emitting raw Responses API items on the event stream.
  * This is for internal use only (e.g. Codex Cloud).
  */

codex-rs/app-server-protocol/schema/typescript/v2/ThreadStartResponse.ts

@@ -3,8 +3,13 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { ReasoningEffort } from "../ReasoningEffort";
 import type { ServiceTier } from "../ServiceTier";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { SandboxPolicy } from "./SandboxPolicy";
 import type { Thread } from "./Thread";
 
-export type ThreadStartResponse = { thread: Thread, model: string, modelProvider: string, serviceTier: ServiceTier | null, cwd: string, approvalPolicy: AskForApproval, sandbox: SandboxPolicy, reasoningEffort: ReasoningEffort | null, };
+export type ThreadStartResponse = { thread: Thread, model: string, modelProvider: string, serviceTier: ServiceTier | null, cwd: string, approvalPolicy: AskForApproval, 
+/**
+ * Reviewer currently used for approval requests on this thread.
+ */
+approvalsReviewer: ApprovalsReviewer, sandbox: SandboxPolicy, reasoningEffort: ReasoningEffort | null, };

codex-rs/app-server-protocol/schema/typescript/v2/TurnStartParams.ts

@@ -7,6 +7,7 @@ import type { ReasoningEffort } from "../ReasoningEffort";
 import type { ReasoningSummary } from "../ReasoningSummary";
 import type { ServiceTier } from "../ServiceTier";
 import type { JsonValue } from "../serde_json/JsonValue";
+import type { ApprovalsReviewer } from "./ApprovalsReviewer";
 import type { AskForApproval } from "./AskForApproval";
 import type { SandboxPolicy } from "./SandboxPolicy";
 import type { UserInput } from "./UserInput";
@@ -18,6 +19,10 @@ cwd?: string | null, /**
  * Override the approval policy for this turn and subsequent turns.
  */
 approvalPolicy?: AskForApproval | null, /**
+ * Override where approval requests are routed for review on this turn and
+ * subsequent turns.
+ */
+approvalsReviewer?: ApprovalsReviewer | null, /**
  * Override the sandbox policy for this turn and subsequent turns.
  */
 sandboxPolicy?: SandboxPolicy | null, /**

codex-rs/app-server-protocol/schema/typescript/v2/index.ts

@@ -19,6 +19,7 @@ export type { AppScreenshot } from "./AppScreenshot";
 export type { AppSummary } from "./AppSummary";
 export type { AppToolApproval } from "./AppToolApproval";
 export type { AppToolsConfig } from "./AppToolsConfig";
+export type { ApprovalsReviewer } from "./ApprovalsReviewer";
 export type { AppsConfig } from "./AppsConfig";
 export type { AppsDefaultConfig } from "./AppsDefaultConfig";
 export type { AppsListParams } from "./AppsListParams";
@@ -95,12 +96,29 @@ export type { FileChangeOutputDeltaNotification } from "./FileChangeOutputDeltaN
 export type { FileChangeRequestApprovalParams } from "./FileChangeRequestApprovalParams";
 export type { FileChangeRequestApprovalResponse } from "./FileChangeRequestApprovalResponse";
 export type { FileUpdateChange } from "./FileUpdateChange";
+export type { FsCopyParams } from "./FsCopyParams";
+export type { FsCopyResponse } from "./FsCopyResponse";
+export type { FsCreateDirectoryParams } from "./FsCreateDirectoryParams";
+export type { FsCreateDirectoryResponse } from "./FsCreateDirectoryResponse";
+export type { FsGetMetadataParams } from "./FsGetMetadataParams";
+export type { FsGetMetadataResponse } from "./FsGetMetadataResponse";
+export type { FsReadDirectoryEntry } from "./FsReadDirectoryEntry";
+export type { FsReadDirectoryParams } from "./FsReadDirectoryParams";
+export type { FsReadDirectoryResponse } from "./FsReadDirectoryResponse";
+export type { FsReadFileParams } from "./FsReadFileParams";
+export type { FsReadFileResponse } from "./FsReadFileResponse";
+export type { FsRemoveParams } from "./FsRemoveParams";
+export type { FsRemoveResponse } from "./FsRemoveResponse";
+export type { FsWriteFileParams } from "./FsWriteFileParams";
+export type { FsWriteFileResponse } from "./FsWriteFileResponse";
 export type { GetAccountParams } from "./GetAccountParams";
 export type { GetAccountRateLimitsResponse } from "./GetAccountRateLimitsResponse";
 export type { GetAccountResponse } from "./GetAccountResponse";
 export type { GitInfo } from "./GitInfo";
-export type { GrantedMacOsPermissions } from "./GrantedMacOsPermissions";
 export type { GrantedPermissionProfile } from "./GrantedPermissionProfile";
+export type { GuardianApprovalReview } from "./GuardianApprovalReview";
+export type { GuardianApprovalReviewStatus } from "./GuardianApprovalReviewStatus";
+export type { GuardianRiskLevel } from "./GuardianRiskLevel";
 export type { HazelnutScope } from "./HazelnutScope";
 export type { HookCompletedNotification } from "./HookCompletedNotification";
 export type { HookEventName } from "./HookEventName";
@@ -113,6 +131,8 @@ export type { HookRunSummary } from "./HookRunSummary";
 export type { HookScope } from "./HookScope";
 export type { HookStartedNotification } from "./HookStartedNotification";
 export type { ItemCompletedNotification } from "./ItemCompletedNotification";
+export type { ItemGuardianApprovalReviewCompletedNotification } from "./ItemGuardianApprovalReviewCompletedNotification";
+export type { ItemGuardianApprovalReviewStartedNotification } from "./ItemGuardianApprovalReviewStartedNotification";
 export type { ItemStartedNotification } from "./ItemStartedNotification";
 export type { ListMcpServerStatusParams } from "./ListMcpServerStatusParams";
 export type { ListMcpServerStatusResponse } from "./ListMcpServerStatusResponse";
@@ -201,6 +221,7 @@ export type { ReasoningSummaryPartAddedNotification } from "./ReasoningSummaryPa
 export type { ReasoningSummaryTextDeltaNotification } from "./ReasoningSummaryTextDeltaNotification";
 export type { ReasoningTextDeltaNotification } from "./ReasoningTextDeltaNotification";
 export type { RemoteSkillSummary } from "./RemoteSkillSummary";
+export type { RequestPermissionProfile } from "./RequestPermissionProfile";
 export type { ResidencyRequirement } from "./ResidencyRequirement";
 export type { ReviewDelivery } from "./ReviewDelivery";
 export type { ReviewStartParams } from "./ReviewStartParams";

codex-rs/app-server-protocol/src/export.rs

@@ -182,7 +182,7 @@ pub fn generate_ts_with_options(
 }
 
 pub fn generate_json(out_dir: &Path) -> Result<()> {
-    generate_json_with_experimental(out_dir, false)
+    generate_json_with_experimental(out_dir, /*experimental_api*/ false)
 }
 
 pub fn generate_json_with_experimental(out_dir: &Path, experimental_api: bool) -> Result<()> {
@@ -1984,7 +1984,7 @@ pub(crate) fn generate_index_ts_tree(tree: &mut BTreeMap<PathBuf, String>) {
     if !v2_entries.is_empty() {
         tree.insert(
             PathBuf::from("v2").join("index.ts"),
-            index_ts_entries(&v2_entries, false),
+            index_ts_entries(&v2_entries, /*has_v2_ts*/ false),
         );
     }
 }

codex-rs/app-server-protocol/src/jsonrpc_lite.rs

@@ -5,6 +5,7 @@ use codex_protocol::protocol::W3cTraceContext;
 use schemars::JsonSchema;
 use serde::Deserialize;
 use serde::Serialize;
+use std::fmt;
 use ts_rs::TS;
 
 pub const JSONRPC_VERSION: &str = "2.0";
@@ -19,6 +20,15 @@ pub enum RequestId {
     Integer(i64),
 }
 
+impl fmt::Display for RequestId {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::String(value) => f.write_str(value),
+            Self::Integer(value) => write!(f, "{value}"),
+        }
+    }
+}
+
 pub type Result = serde_json::Value;
 
 /// Refers to any valid JSON-RPC object that can be decoded off the wire, or encoded to be sent.

codex-rs/app-server-protocol/src/protocol/common.rs

@@ -312,6 +312,34 @@ client_request_definitions! {
         params: v2::AppsListParams,
         response: v2::AppsListResponse,
     },
+    FsReadFile => "fs/readFile" {
+        params: v2::FsReadFileParams,
+        response: v2::FsReadFileResponse,
+    },
+    FsWriteFile => "fs/writeFile" {
+        params: v2::FsWriteFileParams,
+        response: v2::FsWriteFileResponse,
+    },
+    FsCreateDirectory => "fs/createDirectory" {
+        params: v2::FsCreateDirectoryParams,
+        response: v2::FsCreateDirectoryResponse,
+    },
+    FsGetMetadata => "fs/getMetadata" {
+        params: v2::FsGetMetadataParams,
+        response: v2::FsGetMetadataResponse,
+    },
+    FsReadDirectory => "fs/readDirectory" {
+        params: v2::FsReadDirectoryParams,
+        response: v2::FsReadDirectoryResponse,
+    },
+    FsRemove => "fs/remove" {
+        params: v2::FsRemoveParams,
+        response: v2::FsRemoveResponse,
+    },
+    FsCopy => "fs/copy" {
+        params: v2::FsCopyParams,
+        response: v2::FsCopyResponse,
+    },
     SkillsConfigWrite => "skills/config/write" {
         params: v2::SkillsConfigWriteParams,
         response: v2::SkillsConfigWriteResponse,
@@ -856,6 +884,8 @@ server_notification_definitions! {
     TurnDiffUpdated => "turn/diff/updated" (v2::TurnDiffUpdatedNotification),
     TurnPlanUpdated => "turn/plan/updated" (v2::TurnPlanUpdatedNotification),
     ItemStarted => "item/started" (v2::ItemStartedNotification),
+    ItemGuardianApprovalReviewStarted => "item/autoApprovalReview/started" (v2::ItemGuardianApprovalReviewStartedNotification),
+    ItemGuardianApprovalReviewCompleted => "item/autoApprovalReview/completed" (v2::ItemGuardianApprovalReviewCompletedNotification),
     ItemCompleted => "item/completed" (v2::ItemCompletedNotification),
     /// This event is internal-only. Used by Codex Cloud.
     RawResponseItemCompleted => "rawResponseItem/completed" (v2::RawResponseItemCompletedNotification),
@@ -921,8 +951,17 @@ mod tests {
     use serde_json::json;
     use std::path::PathBuf;
 
+    fn absolute_path_string(path: &str) -> String {
+        let trimmed = path.trim_start_matches('/');
+        if cfg!(windows) {
+            format!(r"C:\{}", trimmed.replace('/', "\\"))
+        } else {
+            format!("/{trimmed}")
+        }
+    }
+
     fn absolute_path(path: &str) -> AbsolutePathBuf {
-        AbsolutePathBuf::from_absolute_path(path).expect("absolute path")
+        AbsolutePathBuf::from_absolute_path(absolute_path_string(path)).expect("absolute path")
     }
 
     #[test]
@@ -1419,6 +1458,27 @@ mod tests {
         Ok(())
     }
 
+    #[test]
+    fn serialize_fs_get_metadata() -> Result<()> {
+        let request = ClientRequest::FsGetMetadata {
+            request_id: RequestId::Integer(9),
+            params: v2::FsGetMetadataParams {
+                path: absolute_path("tmp/example"),
+            },
+        };
+        assert_eq!(
+            json!({
+                "method": "fs/getMetadata",
+                "id": 9,
+                "params": {
+                    "path": absolute_path_string("tmp/example")
+                }
+            }),
+            serde_json::to_value(&request)?,
+        );
+        Ok(())
+    }
+
     #[test]
     fn serialize_list_experimental_features() -> Result<()> {
         let request = ClientRequest::ExperimentalFeatureList {

codex-rs/app-server-protocol/src/protocol/thread_history.rs

@@ -201,7 +201,7 @@ impl ThreadHistoryBuilder {
         let mut turn = self
             .current_turn
             .take()
-            .unwrap_or_else(|| self.new_turn(None));
+            .unwrap_or_else(|| self.new_turn(/*id*/ None));
         let id = self.next_item_id();
         let content = self.build_user_inputs(payload);
         turn.items.push(ThreadItem::UserMessage { id, content });
@@ -937,7 +937,7 @@ impl ThreadHistoryBuilder {
 
     fn ensure_turn(&mut self) -> &mut PendingTurn {
         if self.current_turn.is_none() {
-            let turn = self.new_turn(None);
+            let turn = self.new_turn(/*id*/ None);
             return self.current_turn.insert(turn);
         }
 
@@ -2417,6 +2417,74 @@ mod tests {
         );
     }
 
+    #[test]
+    fn reconstructs_interrupted_send_input_as_completed_collab_call() {
+        // `send_input(interrupt=true)` first stops the child's active turn, then redirects it with
+        // new input. The transient interrupted status should remain visible in agent state, but the
+        // collab tool call itself is still a successful redirect rather than a failed operation.
+        let sender = ThreadId::try_from("00000000-0000-0000-0000-000000000001")
+            .expect("valid sender thread id");
+        let receiver = ThreadId::try_from("00000000-0000-0000-0000-000000000002")
+            .expect("valid receiver thread id");
+        let events = vec![
+            EventMsg::UserMessage(UserMessageEvent {
+                message: "redirect".into(),
+                images: None,
+                text_elements: Vec::new(),
+                local_images: Vec::new(),
+            }),
+            EventMsg::CollabAgentInteractionBegin(
+                codex_protocol::protocol::CollabAgentInteractionBeginEvent {
+                    call_id: "send-1".into(),
+                    sender_thread_id: sender,
+                    receiver_thread_id: receiver,
+                    prompt: "new task".into(),
+                },
+            ),
+            EventMsg::CollabAgentInteractionEnd(
+                codex_protocol::protocol::CollabAgentInteractionEndEvent {
+                    call_id: "send-1".into(),
+                    sender_thread_id: sender,
+                    receiver_thread_id: receiver,
+                    receiver_agent_nickname: None,
+                    receiver_agent_role: None,
+                    prompt: "new task".into(),
+                    status: AgentStatus::Interrupted,
+                },
+            ),
+        ];
+
+        let items = events
+            .into_iter()
+            .map(RolloutItem::EventMsg)
+            .collect::<Vec<_>>();
+        let turns = build_turns_from_rollout_items(&items);
+        assert_eq!(turns.len(), 1);
+        assert_eq!(turns[0].items.len(), 2);
+        assert_eq!(
+            turns[0].items[1],
+            ThreadItem::CollabAgentToolCall {
+                id: "send-1".into(),
+                tool: CollabAgentTool::SendInput,
+                status: CollabAgentToolCallStatus::Completed,
+                sender_thread_id: sender.to_string(),
+                receiver_thread_ids: vec![receiver.to_string()],
+                prompt: Some("new task".into()),
+                model: None,
+                reasoning_effort: None,
+                agents_states: [(
+                    receiver.to_string(),
+                    CollabAgentState {
+                        status: crate::protocol::v2::CollabAgentStatus::Interrupted,
+                        message: None,
+                    },
+                )]
+                .into_iter()
+                .collect(),
+            }
+        );
+    }
+
     #[test]
     fn rollback_failed_error_does_not_mark_turn_failed() {
         let events = vec![

codex-rs/app-server-protocol/src/protocol/v1.rs

@@ -56,6 +56,12 @@ pub struct InitializeCapabilities {
 #[serde(rename_all = "camelCase")]
 pub struct InitializeResponse {
     pub user_agent: String,
+    /// Platform family for the running app-server target, for example
+    /// `"unix"` or `"windows"`.
+    pub platform_family: String,
+    /// Operating system for the running app-server target, for example
+    /// `"macos"`, `"linux"`, or `"windows"`.
+    pub platform_os: String,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, JsonSchema, TS)]

codex-rs/app-server-test-client/src/lib.rs

@@ -657,7 +657,7 @@ pub async fn send_message_v2(
         &endpoint,
         config_overrides,
         user_message,
-        true,
+        /*experimental_api*/ true,
         dynamic_tools,
     )
     .await
@@ -1510,7 +1510,7 @@ impl CodexClient {
     }
 
     fn initialize(&mut self) -> Result<InitializeResponse> {
-        self.initialize_with_experimental_api(true)
+        self.initialize_with_experimental_api(/*experimental_api*/ true)
     }
 
     fn initialize_with_experimental_api(

codex-rs/app-server/Cargo.toml

@@ -68,6 +68,7 @@ tokio-tungstenite = { workspace = true }
 tracing = { workspace = true, features = ["log"] }
 tracing-subscriber = { workspace = true, features = ["env-filter", "fmt", "json"] }
 uuid = { workspace = true, features = ["serde", "v7"] }
+walkdir = { workspace = true }
 
 [dev-dependencies]
 app_test_support = { workspace = true }