diff --git a/codex-rs/core/src/client.rs b/codex-rs/core/src/client.rs
index ce354d9b0..642a6dec5 100644
--- a/codex-rs/core/src/client.rs
+++ b/codex-rs/core/src/client.rs
@@ -57,7 +57,7 @@ use codex_api::common::ResponsesWsRequest;
 use codex_api::create_text_param_for_request;
 use codex_api::error::ApiError;
 use codex_api::requests::responses::Compression;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 
 use codex_protocol::ThreadId;
 use codex_protocol::config_types::ReasoningSummary as ReasoningSummaryConfig;
@@ -281,14 +281,14 @@ impl ModelClient {
         &self,
         prompt: &Prompt,
         model_info: &ModelInfo,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
     ) -> Result<Vec<ResponseItem>> {
         if prompt.input.is_empty() {
             return Ok(Vec::new());
         }
         let client_setup = self.current_client_setup().await?;
         let transport = ReqwestTransport::new(build_reqwest_client());
-        let request_telemetry = Self::build_request_telemetry(otel_manager);
+        let request_telemetry = Self::build_request_telemetry(session_telemetry);
         let client =
             ApiCompactClient::new(transport, client_setup.api_provider, client_setup.api_auth)
                 .with_telemetry(Some(request_telemetry));
@@ -321,7 +321,7 @@ impl ModelClient {
         raw_memories: Vec<ApiRawMemory>,
         model_info: &ModelInfo,
         effort: Option<ReasoningEffortConfig>,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
     ) -> Result<Vec<ApiMemorySummarizeOutput>> {
         if raw_memories.is_empty() {
             return Ok(Vec::new());
@@ -329,7 +329,7 @@ impl ModelClient {
 
         let client_setup = self.current_client_setup().await?;
         let transport = ReqwestTransport::new(build_reqwest_client());
-        let request_telemetry = Self::build_request_telemetry(otel_manager);
+        let request_telemetry = Self::build_request_telemetry(session_telemetry);
         let client =
             ApiMemoriesClient::new(transport, client_setup.api_provider, client_setup.api_auth)
                 .with_telemetry(Some(request_telemetry));
@@ -369,8 +369,8 @@ impl ModelClient {
     }
 
     /// Builds request telemetry for unary API calls (e.g., Compact endpoint).
-    fn build_request_telemetry(otel_manager: &OtelManager) -> Arc<dyn RequestTelemetry> {
-        let telemetry = Arc::new(ApiTelemetry::new(otel_manager.clone()));
+    fn build_request_telemetry(session_telemetry: &SessionTelemetry) -> Arc<dyn RequestTelemetry> {
+        let telemetry = Arc::new(ApiTelemetry::new(session_telemetry.clone()));
         let request_telemetry: Arc<dyn RequestTelemetry> = telemetry;
         request_telemetry
     }
@@ -419,14 +419,14 @@ impl ModelClient {
     /// behavior remains consistent across both flows.
     async fn connect_websocket(
         &self,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         api_provider: codex_api::Provider,
         api_auth: CoreAuthProvider,
         turn_state: Option<Arc<OnceLock<String>>>,
         turn_metadata_header: Option<&str>,
     ) -> std::result::Result<ApiWebSocketConnection, ApiError> {
         let headers = self.build_websocket_headers(turn_state.as_ref(), turn_metadata_header);
-        let websocket_telemetry = ModelClientSession::build_websocket_telemetry(otel_manager);
+        let websocket_telemetry = ModelClientSession::build_websocket_telemetry(session_telemetry);
         ApiWebSocketResponsesClient::new(api_provider, api_auth)
             .connect(
                 headers,
@@ -660,7 +660,7 @@ impl ModelClientSession {
     /// This performs only connection setup; it never sends prompt payloads.
     pub async fn preconnect_websocket(
         &mut self,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         model_info: &ModelInfo,
     ) -> std::result::Result<(), ApiError> {
         if !self.client.responses_websocket_enabled(model_info) {
@@ -679,7 +679,7 @@ impl ModelClientSession {
         let connection = self
             .client
             .connect_websocket(
-                otel_manager,
+                session_telemetry,
                 client_setup.api_provider,
                 client_setup.api_auth,
                 Some(Arc::clone(&self.turn_state)),
@@ -692,7 +692,7 @@ impl ModelClientSession {
     /// Returns a websocket connection for this turn.
     async fn websocket_connection(
         &mut self,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         api_provider: codex_api::Provider,
         api_auth: CoreAuthProvider,
         turn_metadata_header: Option<&str>,
@@ -713,7 +713,7 @@ impl ModelClientSession {
             let new_conn = self
                 .client
                 .connect_websocket(
-                    otel_manager,
+                    session_telemetry,
                     api_provider,
                     api_auth,
                     Some(turn_state),
@@ -751,7 +751,7 @@ impl ModelClientSession {
         &self,
         prompt: &Prompt,
         model_info: &ModelInfo,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         effort: Option<ReasoningEffortConfig>,
         summary: ReasoningSummaryConfig,
         service_tier: Option<ServiceTier>,
@@ -764,7 +764,7 @@ impl ModelClientSession {
                 self.client.state.provider.stream_idle_timeout(),
             )
             .map_err(map_api_error)?;
-            let (stream, _last_request_rx) = map_response_stream(stream, otel_manager.clone());
+            let (stream, _last_request_rx) = map_response_stream(stream, session_telemetry.clone());
             return Ok(stream);
         }
 
@@ -775,7 +775,8 @@ impl ModelClientSession {
         loop {
             let client_setup = self.client.current_client_setup().await?;
             let transport = ReqwestTransport::new(build_reqwest_client());
-            let (request_telemetry, sse_telemetry) = Self::build_streaming_telemetry(otel_manager);
+            let (request_telemetry, sse_telemetry) =
+                Self::build_streaming_telemetry(session_telemetry);
             let compression = self.responses_request_compression(client_setup.auth.as_ref());
             let options = self.build_responses_options(turn_metadata_header, compression);
 
@@ -797,7 +798,7 @@ impl ModelClientSession {
 
             match stream_result {
                 Ok(stream) => {
-                    let (stream, _) = map_response_stream(stream, otel_manager.clone());
+                    let (stream, _) = map_response_stream(stream, session_telemetry.clone());
                     return Ok(stream);
                 }
                 Err(ApiError::Transport(
@@ -817,7 +818,7 @@ impl ModelClientSession {
         &mut self,
         prompt: &Prompt,
         model_info: &ModelInfo,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         effort: Option<ReasoningEffortConfig>,
         summary: ReasoningSummaryConfig,
         service_tier: Option<ServiceTier>,
@@ -852,7 +853,7 @@ impl ModelClientSession {
 
             match self
                 .websocket_connection(
-                    otel_manager,
+                    session_telemetry,
                     client_setup.api_provider,
                     client_setup.api_auth,
                     turn_metadata_header,
@@ -890,7 +891,7 @@ impl ModelClientSession {
                 .await
                 .map_err(map_api_error)?;
             let (stream, last_request_rx) =
-                map_response_stream(stream_result, otel_manager.clone());
+                map_response_stream(stream_result, session_telemetry.clone());
             self.websocket_session.last_response_rx = Some(last_request_rx);
             return Ok(WebsocketStreamOutcome::Stream(stream));
         }
@@ -898,17 +899,19 @@ impl ModelClientSession {
 
     /// Builds request and SSE telemetry for streaming API calls.
     fn build_streaming_telemetry(
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
     ) -> (Arc<dyn RequestTelemetry>, Arc<dyn SseTelemetry>) {
-        let telemetry = Arc::new(ApiTelemetry::new(otel_manager.clone()));
+        let telemetry = Arc::new(ApiTelemetry::new(session_telemetry.clone()));
         let request_telemetry: Arc<dyn RequestTelemetry> = telemetry.clone();
         let sse_telemetry: Arc<dyn SseTelemetry> = telemetry;
         (request_telemetry, sse_telemetry)
     }
 
     /// Builds telemetry for the Responses API WebSocket transport.
-    fn build_websocket_telemetry(otel_manager: &OtelManager) -> Arc<dyn WebsocketTelemetry> {
-        let telemetry = Arc::new(ApiTelemetry::new(otel_manager.clone()));
+    fn build_websocket_telemetry(
+        session_telemetry: &SessionTelemetry,
+    ) -> Arc<dyn WebsocketTelemetry> {
+        let telemetry = Arc::new(ApiTelemetry::new(session_telemetry.clone()));
         let websocket_telemetry: Arc<dyn WebsocketTelemetry> = telemetry;
         websocket_telemetry
     }
@@ -918,7 +921,7 @@ impl ModelClientSession {
         &mut self,
         prompt: &Prompt,
         model_info: &ModelInfo,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         effort: Option<ReasoningEffortConfig>,
         summary: ReasoningSummaryConfig,
         service_tier: Option<ServiceTier>,
@@ -935,7 +938,7 @@ impl ModelClientSession {
             .stream_responses_websocket(
                 prompt,
                 model_info,
-                otel_manager,
+                session_telemetry,
                 effort,
                 summary,
                 service_tier,
@@ -956,7 +959,7 @@ impl ModelClientSession {
                 Ok(())
             }
             Ok(WebsocketStreamOutcome::FallbackToHttp) => {
-                self.try_switch_fallback_transport(otel_manager, model_info);
+                self.try_switch_fallback_transport(session_telemetry, model_info);
                 Ok(())
             }
             Err(err) => Err(err),
@@ -974,7 +977,7 @@ impl ModelClientSession {
         &mut self,
         prompt: &Prompt,
         model_info: &ModelInfo,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         effort: Option<ReasoningEffortConfig>,
         summary: ReasoningSummaryConfig,
         service_tier: Option<ServiceTier>,
@@ -988,7 +991,7 @@ impl ModelClientSession {
                         .stream_responses_websocket(
                             prompt,
                             model_info,
-                            otel_manager,
+                            session_telemetry,
                             effort,
                             summary,
                             service_tier,
@@ -999,7 +1002,7 @@ impl ModelClientSession {
                     {
                         WebsocketStreamOutcome::Stream(stream) => return Ok(stream),
                         WebsocketStreamOutcome::FallbackToHttp => {
-                            self.try_switch_fallback_transport(otel_manager, model_info);
+                            self.try_switch_fallback_transport(session_telemetry, model_info);
                         }
                     }
                 }
@@ -1007,7 +1010,7 @@ impl ModelClientSession {
                 self.stream_responses_api(
                     prompt,
                     model_info,
-                    otel_manager,
+                    session_telemetry,
                     effort,
                     summary,
                     service_tier,
@@ -1026,14 +1029,14 @@ impl ModelClientSession {
     /// Returns `true` if this call activated fallback, or `false` if fallback was already active.
     pub(crate) fn try_switch_fallback_transport(
         &mut self,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         model_info: &ModelInfo,
     ) -> bool {
         let websocket_enabled = self.client.responses_websocket_enabled(model_info);
         let activated = self.activate_http_fallback(websocket_enabled);
         if activated {
             warn!("falling back to HTTP");
-            otel_manager.counter(
+            session_telemetry.counter(
                 "codex.transport.fallback_to_http",
                 1,
                 &[("from_wire_api", "responses_websocket")],
@@ -1096,7 +1099,7 @@ fn build_responses_headers(
 
 fn map_response_stream<S>(
     api_stream: S,
-    otel_manager: OtelManager,
+    session_telemetry: SessionTelemetry,
 ) -> (ResponseStream, oneshot::Receiver<LastResponse>)
 where
     S: futures::Stream<Item = std::result::Result<ResponseEvent, ApiError>>
@@ -1129,7 +1132,7 @@ where
                     token_usage,
                 }) => {
                     if let Some(usage) = &token_usage {
-                        otel_manager.sse_event_completed(
+                        session_telemetry.sse_event_completed(
                             usage.input_tokens,
                             usage.output_tokens,
                             Some(usage.cached_input_tokens),
@@ -1162,7 +1165,7 @@ where
                 Err(err) => {
                     let mapped = map_api_error(err);
                     if !logged_error {
-                        otel_manager.see_event_completed_failed(&mapped);
+                        session_telemetry.see_event_completed_failed(&mapped);
                         logged_error = true;
                     }
                     if tx_event.send(Err(mapped)).await.is_err() {
@@ -1198,12 +1201,12 @@ async fn handle_unauthorized(
 }
 
 struct ApiTelemetry {
-    otel_manager: OtelManager,
+    session_telemetry: SessionTelemetry,
 }
 
 impl ApiTelemetry {
-    fn new(otel_manager: OtelManager) -> Self {
-        Self { otel_manager }
+    fn new(session_telemetry: SessionTelemetry) -> Self {
+        Self { session_telemetry }
     }
 }
 
@@ -1216,7 +1219,7 @@ impl RequestTelemetry for ApiTelemetry {
         duration: Duration,
     ) {
         let error_message = error.map(std::string::ToString::to_string);
-        self.otel_manager.record_api_request(
+        self.session_telemetry.record_api_request(
             attempt,
             status.map(|s| s.as_u16()),
             error_message.as_deref(),
@@ -1234,14 +1237,14 @@ impl SseTelemetry for ApiTelemetry {
         >,
         duration: Duration,
     ) {
-        self.otel_manager.log_sse_event(result, duration);
+        self.session_telemetry.log_sse_event(result, duration);
     }
 }
 
 impl WebsocketTelemetry for ApiTelemetry {
     fn on_ws_request(&self, duration: Duration, error: Option<&ApiError>) {
         let error_message = error.map(std::string::ToString::to_string);
-        self.otel_manager
+        self.session_telemetry
             .record_websocket_request(duration, error_message.as_deref());
     }
 
@@ -1250,14 +1253,15 @@ impl WebsocketTelemetry for ApiTelemetry {
         result: &std::result::Result<Option<std::result::Result<Message, Error>>, ApiError>,
         duration: Duration,
     ) {
-        self.otel_manager.record_websocket_event(result, duration);
+        self.session_telemetry
+            .record_websocket_event(result, duration);
     }
 }
 
 #[cfg(test)]
 mod tests {
     use super::ModelClient;
-    use codex_otel::OtelManager;
+    use codex_otel::SessionTelemetry;
     use codex_protocol::ThreadId;
     use codex_protocol::openai_models::ModelInfo;
     use codex_protocol::protocol::SessionSource;
@@ -1313,8 +1317,8 @@ mod tests {
         .expect("deserialize test model info")
     }
 
-    fn test_otel_manager() -> OtelManager {
-        OtelManager::new(
+    fn test_session_telemetry() -> SessionTelemetry {
+        SessionTelemetry::new(
             ThreadId::new(),
             "gpt-test",
             "gpt-test",
@@ -1344,10 +1348,10 @@ mod tests {
     async fn summarize_memories_returns_empty_for_empty_input() {
         let client = test_model_client(SessionSource::Cli);
         let model_info = test_model_info();
-        let otel_manager = test_otel_manager();
+        let session_telemetry = test_session_telemetry();
 
         let output = client
-            .summarize_memories(Vec::new(), &model_info, None, &otel_manager)
+            .summarize_memories(Vec::new(), &model_info, None, &session_telemetry)
             .await
             .expect("empty summarize request should succeed");
         assert_eq!(output.len(), 0);
diff --git a/codex-rs/core/src/codex.rs b/codex-rs/core/src/codex.rs
index bd32dfe02..519b28217 100644
--- a/codex-rs/core/src/codex.rs
+++ b/codex-rs/core/src/codex.rs
@@ -297,7 +297,7 @@ use crate::unified_exec::UnifiedExecProcessManager;
 use crate::util::backoff;
 use crate::windows_sandbox::WindowsSandboxLevelExt;
 use codex_async_utils::OrCancelExt;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_protocol::config_types::CollaborationMode;
 use codex_protocol::config_types::Personality;
@@ -664,7 +664,7 @@ pub(crate) struct TurnContext {
     pub(crate) config: Arc<Config>,
     pub(crate) auth_manager: Option<Arc<AuthManager>>,
     pub(crate) model_info: ModelInfo,
-    pub(crate) otel_manager: OtelManager,
+    pub(crate) session_telemetry: SessionTelemetry,
     pub(crate) provider: ModelProviderInfo,
     pub(crate) reasoning_effort: Option<ReasoningEffortConfig>,
     pub(crate) reasoning_summary: ReasoningSummaryConfig,
@@ -754,8 +754,8 @@ impl TurnContext {
             config: Arc::new(config),
             auth_manager: self.auth_manager.clone(),
             model_info: model_info.clone(),
-            otel_manager: self
-                .otel_manager
+            session_telemetry: self
+                .session_telemetry
                 .clone()
                 .with_model(model.as_str(), model_info.slug.as_str()),
             provider: self.provider.clone(),
@@ -1089,7 +1089,7 @@ impl Session {
     #[allow(clippy::too_many_arguments)]
     fn make_turn_context(
         auth_manager: Option<Arc<AuthManager>>,
-        otel_manager: &OtelManager,
+        session_telemetry: &SessionTelemetry,
         provider: ModelProviderInfo,
         session_configuration: &SessionConfiguration,
         per_turn_config: Config,
@@ -1103,14 +1103,14 @@ impl Session {
         let reasoning_summary = session_configuration
             .model_reasoning_summary
             .unwrap_or(model_info.default_reasoning_summary);
-        let otel_manager = otel_manager.clone().with_model(
+        let session_telemetry = session_telemetry.clone().with_model(
             session_configuration.collaboration_mode.model(),
             model_info.slug.as_str(),
         );
         let session_source = session_configuration.session_source.clone();
         let auth_manager_for_context = auth_manager;
         let provider_for_context = provider;
-        let otel_manager_for_context = otel_manager;
+        let session_telemetry_for_context = session_telemetry;
         let per_turn_config = Arc::new(per_turn_config);
 
         let tools_config = ToolsConfig::new(&ToolsConfigParams {
@@ -1140,7 +1140,7 @@ impl Session {
             config: per_turn_config.clone(),
             auth_manager: auth_manager_for_context,
             model_info: model_info.clone(),
-            otel_manager: otel_manager_for_context,
+            session_telemetry: session_telemetry_for_context,
             provider: provider_for_context,
             reasoning_effort,
             reasoning_summary,
@@ -1355,7 +1355,7 @@ impl Session {
         let originator = crate::default_client::originator().value;
         let terminal_type = terminal::user_agent();
         let session_model = session_configuration.collaboration_mode.model().to_string();
-        let mut otel_manager = OtelManager::new(
+        let mut session_telemetry = SessionTelemetry::new(
             conversation_id,
             session_model.as_str(),
             session_model.as_str(),
@@ -1368,7 +1368,7 @@ impl Session {
             session_configuration.session_source.clone(),
         );
         if let Some(service_name) = session_configuration.metrics_service_name.as_deref() {
-            otel_manager = otel_manager.with_metrics_service_name(service_name);
+            session_telemetry = session_telemetry.with_metrics_service_name(service_name);
         }
         let network_proxy_audit_metadata = NetworkProxyAuditMetadata {
             conversation_id: Some(conversation_id.to_string()),
@@ -1381,8 +1381,8 @@ impl Session {
             model: Some(session_model.clone()),
             slug: Some(session_model),
         };
-        config.features.emit_metrics(&otel_manager);
-        otel_manager.counter(
+        config.features.emit_metrics(&session_telemetry);
+        session_telemetry.counter(
             "codex.thread.started",
             1,
             &[(
@@ -1395,7 +1395,7 @@ impl Session {
             )],
         );
 
-        otel_manager.conversation_starts(
+        session_telemetry.conversation_starts(
             config.model_provider.name.as_str(),
             session_configuration.collaboration_mode.reasoning_effort(),
             config
@@ -1438,7 +1438,7 @@ impl Session {
                     conversation_id,
                     session_configuration.cwd.clone(),
                     &mut default_shell,
-                    otel_manager.clone(),
+                    session_telemetry.clone(),
                 )
             }
         } else {
@@ -1533,7 +1533,7 @@ impl Session {
             show_raw_agent_reasoning: config.show_raw_agent_reasoning,
             exec_policy,
             auth_manager: Arc::clone(&auth_manager),
-            otel_manager,
+            session_telemetry,
             models_manager: Arc::clone(&models_manager),
             tool_approvals: Mutex::new(ApprovalStore::default()),
             execve_session_approvals: RwLock::new(HashMap::new()),
@@ -2055,7 +2055,7 @@ impl Session {
             next_cwd.to_path_buf(),
             self.services.user_shell.as_ref().clone(),
             self.services.shell_snapshot_tx.clone(),
-            self.services.otel_manager.clone(),
+            self.services.session_telemetry.clone(),
         );
     }
 
@@ -2202,7 +2202,7 @@ impl Session {
         );
         let mut turn_context: TurnContext = Self::make_turn_context(
             Some(Arc::clone(&self.services.auth_manager)),
-            &self.services.otel_manager,
+            &self.services.session_telemetry,
             session_configuration.provider.clone(),
             &session_configuration,
             per_turn_config,
@@ -3024,7 +3024,7 @@ impl Session {
 
     pub(crate) async fn record_model_warning(&self, message: impl Into<String>, ctx: &TurnContext) {
         self.services
-            .otel_manager
+            .session_telemetry
             .counter("codex.model_warning", 1, &[]);
         let item = ResponseItem::Message {
             id: None,
@@ -4178,7 +4178,7 @@ mod handlers {
         };
         sess.maybe_emit_unknown_model_warning_for_turn(current_context.as_ref())
             .await;
-        current_context.otel_manager.user_prompt(&items);
+        current_context.session_telemetry.user_prompt(&items);
 
         // Attempt to inject input into current task.
         if let Err(SteerInputError::NoActiveTurn(items)) = sess.steer_input(items, None).await {
@@ -4814,7 +4814,7 @@ mod handlers {
             .iter()
             .filter(|item| is_user_turn_boundary(item))
             .count();
-        sess.services.otel_manager.counter(
+        sess.services.session_telemetry.counter(
             "codex.conversation.turn.count",
             i64::try_from(turn_count).unwrap_or(0),
             &[],
@@ -4933,13 +4933,13 @@ async fn spawn_review_thread(
         );
     }
 
-    let otel_manager = parent_turn_context
-        .otel_manager
+    let session_telemetry = parent_turn_context
+        .session_telemetry
         .clone()
         .with_model(model.as_str(), review_model_info.slug.as_str());
     let auth_manager_for_context = auth_manager.clone();
     let provider_for_context = provider.clone();
-    let otel_manager_for_context = otel_manager.clone();
+    let session_telemetry_for_context = session_telemetry.clone();
     let reasoning_effort = per_turn_config.model_reasoning_effort;
     let reasoning_summary = per_turn_config
         .model_reasoning_summary
@@ -4965,7 +4965,7 @@ async fn spawn_review_thread(
         config: per_turn_config,
         auth_manager: auth_manager_for_context,
         model_info: model_info.clone(),
-        otel_manager: otel_manager_for_context,
+        session_telemetry: session_telemetry_for_context,
         provider: provider_for_context,
         reasoning_effort,
         reasoning_summary,
@@ -5194,7 +5194,7 @@ pub(crate) async fn run_turn(
     )
     .await;
 
-    let otel_manager = turn_context.otel_manager.clone();
+    let session_telemetry = turn_context.session_telemetry.clone();
     let thread_id = sess.conversation_id.to_string();
     let tracking = build_track_events_context(
         turn_context.model_info.slug.clone(),
@@ -5206,7 +5206,7 @@ pub(crate) async fn run_turn(
         warnings: skill_warnings,
     } = build_skill_injections(
         &mentioned_skills,
-        Some(&otel_manager),
+        Some(&session_telemetry),
         &sess.services.analytics_events_client,
         tracking.clone(),
     )
@@ -5829,8 +5829,10 @@ async fn run_sampling_request(
         // Use the configured provider-specific stream retry budget.
         let max_retries = turn_context.provider.stream_max_retries();
         if retries >= max_retries
-            && client_session
-                .try_switch_fallback_transport(&turn_context.otel_manager, &turn_context.model_info)
+            && client_session.try_switch_fallback_transport(
+                &turn_context.session_telemetry,
+                &turn_context.model_info,
+            )
         {
             sess.send_event(
                 &turn_context,
@@ -6533,7 +6535,7 @@ async fn try_run_sampling_request(
         .stream(
             prompt,
             &turn_context.model_info,
-            &turn_context.otel_manager,
+            &turn_context.session_telemetry,
             turn_context.reasoning_effort,
             turn_context.reasoning_summary,
             turn_context.config.service_tier,
@@ -6589,7 +6591,7 @@ async fn try_run_sampling_request(
         };
 
         sess.services
-            .otel_manager
+            .session_telemetry
             .record_responses(&handle_responses, &event);
         record_turn_ttft_metric(&turn_context, &event).await;
 
diff --git a/codex-rs/core/src/codex_tests.rs b/codex-rs/core/src/codex_tests.rs
index cb44d1cad..7fe6076f7 100644
--- a/codex-rs/core/src/codex_tests.rs
+++ b/codex-rs/core/src/codex_tests.rs
@@ -1811,13 +1811,13 @@ async fn build_test_config(codex_home: &Path) -> Config {
         .expect("load default test config")
 }
 
-fn otel_manager(
+fn session_telemetry(
     conversation_id: ThreadId,
     config: &Config,
     model_info: &ModelInfo,
     session_source: SessionSource,
-) -> OtelManager {
-    OtelManager::new(
+) -> SessionTelemetry {
+    SessionTelemetry::new(
         conversation_id,
         ModelsManager::get_model_offline_for_tests(config.model.as_deref()).as_str(),
         model_info.slug.as_str(),
@@ -2026,7 +2026,7 @@ pub(crate) async fn make_session_and_context() -> (Session, TurnContext) {
         session_configuration.collaboration_mode.model(),
         &per_turn_config,
     );
-    let otel_manager = otel_manager(
+    let session_telemetry = session_telemetry(
         conversation_id,
         config.as_ref(),
         &model_info,
@@ -2068,7 +2068,7 @@ pub(crate) async fn make_session_and_context() -> (Session, TurnContext) {
         show_raw_agent_reasoning: config.show_raw_agent_reasoning,
         exec_policy,
         auth_manager: auth_manager.clone(),
-        otel_manager: otel_manager.clone(),
+        session_telemetry: session_telemetry.clone(),
         models_manager: Arc::clone(&models_manager),
         tool_approvals: Mutex::new(ApprovalStore::default()),
         execve_session_approvals: RwLock::new(HashMap::new()),
@@ -2100,7 +2100,7 @@ pub(crate) async fn make_session_and_context() -> (Session, TurnContext) {
     let skills_outcome = Arc::new(services.skills_manager.skills_for_config(&per_turn_config));
     let turn_context = Session::make_turn_context(
         Some(Arc::clone(&auth_manager)),
-        &otel_manager,
+        &session_telemetry,
         session_configuration.provider.clone(),
         &session_configuration,
         per_turn_config,
@@ -2431,7 +2431,7 @@ pub(crate) async fn make_session_and_context_with_dynamic_tools_and_rx(
         session_configuration.collaboration_mode.model(),
         &per_turn_config,
     );
-    let otel_manager = otel_manager(
+    let session_telemetry = session_telemetry(
         conversation_id,
         config.as_ref(),
         &model_info,
@@ -2473,7 +2473,7 @@ pub(crate) async fn make_session_and_context_with_dynamic_tools_and_rx(
         show_raw_agent_reasoning: config.show_raw_agent_reasoning,
         exec_policy,
         auth_manager: Arc::clone(&auth_manager),
-        otel_manager: otel_manager.clone(),
+        session_telemetry: session_telemetry.clone(),
         models_manager: Arc::clone(&models_manager),
         tool_approvals: Mutex::new(ApprovalStore::default()),
         execve_session_approvals: RwLock::new(HashMap::new()),
@@ -2505,7 +2505,7 @@ pub(crate) async fn make_session_and_context_with_dynamic_tools_and_rx(
     let skills_outcome = Arc::new(services.skills_manager.skills_for_config(&per_turn_config));
     let turn_context = Arc::new(Session::make_turn_context(
         Some(Arc::clone(&auth_manager)),
-        &otel_manager,
+        &session_telemetry,
         session_configuration.provider.clone(),
         &session_configuration,
         per_turn_config,
diff --git a/codex-rs/core/src/compact.rs b/codex-rs/core/src/compact.rs
index 6c7dbb105..42e338443 100644
--- a/codex-rs/core/src/compact.rs
+++ b/codex-rs/core/src/compact.rs
@@ -400,7 +400,7 @@ async fn drain_to_completed(
         .stream(
             prompt,
             &turn_context.model_info,
-            &turn_context.otel_manager,
+            &turn_context.session_telemetry,
             turn_context.reasoning_effort,
             turn_context.reasoning_summary,
             turn_context.config.service_tier,
diff --git a/codex-rs/core/src/compact_remote.rs b/codex-rs/core/src/compact_remote.rs
index 40c520f65..473d91e54 100644
--- a/codex-rs/core/src/compact_remote.rs
+++ b/codex-rs/core/src/compact_remote.rs
@@ -107,7 +107,7 @@ async fn run_remote_compact_task_inner_impl(
         .compact_conversation_history(
             &prompt,
             &turn_context.model_info,
-            &turn_context.otel_manager,
+            &turn_context.session_telemetry,
         )
         .or_else(|err| async {
             let total_usage_breakdown = sess.get_total_token_usage_breakdown().await;
diff --git a/codex-rs/core/src/features.rs b/codex-rs/core/src/features.rs
index 7defc571f..43c0b06b6 100644
--- a/codex-rs/core/src/features.rs
+++ b/codex-rs/core/src/features.rs
@@ -12,7 +12,7 @@ use crate::protocol::Event;
 use crate::protocol::EventMsg;
 use crate::protocol::WarningEvent;
 use codex_config::CONFIG_TOML_FILE;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use schemars::JsonSchema;
 use serde::Deserialize;
 use serde::Serialize;
@@ -278,7 +278,7 @@ impl Features {
         self.legacy_usages.iter()
     }
 
-    pub fn emit_metrics(&self, otel: &OtelManager) {
+    pub fn emit_metrics(&self, otel: &SessionTelemetry) {
         for feature in FEATURES {
             if matches!(feature.stage, Stage::Removed) {
                 continue;
diff --git a/codex-rs/core/src/mcp_tool_call.rs b/codex-rs/core/src/mcp_tool_call.rs
index 3900ea417..3dea0961c 100644
--- a/codex-rs/core/src/mcp_tool_call.rs
+++ b/codex-rs/core/src/mcp_tool_call.rs
@@ -107,7 +107,7 @@ pub(crate) async fn handle_mcp_tool_call(
         .await;
         let status = if result.is_ok() { "ok" } else { "error" };
         turn_context
-            .otel_manager
+            .session_telemetry
             .counter("codex.mcp.call", 1, &[("status", status)]);
         return ResponseInputItem::McpToolCallOutput { call_id, result };
     }
@@ -188,7 +188,7 @@ pub(crate) async fn handle_mcp_tool_call(
 
         let status = if result.is_ok() { "ok" } else { "error" };
         turn_context
-            .otel_manager
+            .session_telemetry
             .counter("codex.mcp.call", 1, &[("status", status)]);
 
         return ResponseInputItem::McpToolCallOutput { call_id, result };
@@ -229,7 +229,7 @@ pub(crate) async fn handle_mcp_tool_call(
 
     let status = if result.is_ok() { "ok" } else { "error" };
     turn_context
-        .otel_manager
+        .session_telemetry
         .counter("codex.mcp.call", 1, &[("status", status)]);
 
     ResponseInputItem::McpToolCallOutput { call_id, result }
diff --git a/codex-rs/core/src/memories/phase1.rs b/codex-rs/core/src/memories/phase1.rs
index b860f84ee..ad4f29a0d 100644
--- a/codex-rs/core/src/memories/phase1.rs
+++ b/codex-rs/core/src/memories/phase1.rs
@@ -12,7 +12,7 @@ use crate::memories::prompts::build_stage_one_input_message;
 use crate::rollout::INTERACTIVE_SESSION_SOURCES;
 use crate::rollout::policy::should_persist_response_item_for_memories;
 use codex_api::ResponseEvent;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_protocol::config_types::ReasoningSummary as ReasoningSummaryConfig;
 use codex_protocol::config_types::ServiceTier;
 use codex_protocol::models::BaseInstructions;
@@ -35,7 +35,7 @@ use tracing::warn;
 #[derive(Clone, Debug)]
 pub(in crate::memories) struct RequestContext {
     pub(in crate::memories) model_info: ModelInfo,
-    pub(in crate::memories) otel_manager: OtelManager,
+    pub(in crate::memories) session_telemetry: SessionTelemetry,
     pub(in crate::memories) reasoning_effort: Option<ReasoningEffortConfig>,
     pub(in crate::memories) reasoning_summary: ReasoningSummaryConfig,
     pub(in crate::memories) service_tier: Option<ServiceTier>,
@@ -85,7 +85,7 @@ struct StageOneOutput {
 pub(in crate::memories) async fn run(session: &Arc<Session>, config: &Config) {
     let _phase_one_e2e_timer = session
         .services
-        .otel_manager
+        .session_telemetry
         .start_timer(metrics::MEMORY_PHASE_ONE_E2E_MS, &[])
         .ok();
 
@@ -94,7 +94,7 @@ pub(in crate::memories) async fn run(session: &Arc<Session>, config: &Config) {
         return;
     };
     if claimed_candidates.is_empty() {
-        session.services.otel_manager.counter(
+        session.services.session_telemetry.counter(
             metrics::MEMORY_PHASE_ONE_JOBS,
             1,
             &[("status", "skipped_no_candidates")],
@@ -168,7 +168,7 @@ impl RequestContext {
         Self {
             model_info,
             turn_metadata_header,
-            otel_manager: turn_context.otel_manager.clone(),
+            session_telemetry: turn_context.session_telemetry.clone(),
             reasoning_effort: Some(phase_one::REASONING_EFFORT),
             reasoning_summary: turn_context.reasoning_summary,
             service_tier: turn_context.config.service_tier,
@@ -208,7 +208,7 @@ async fn claim_startup_jobs(
         Ok(claims) => Some(claims),
         Err(err) => {
             warn!("state db claim_stage1_jobs_for_startup failed during memories startup: {err}");
-            session.services.otel_manager.counter(
+            session.services.session_telemetry.counter(
                 metrics::MEMORY_PHASE_ONE_JOBS,
                 1,
                 &[("status", "failed_claim")],
@@ -347,7 +347,7 @@ mod job {
             .stream(
                 &prompt,
                 &stage_one_context.model_info,
-                &stage_one_context.otel_manager,
+                &stage_one_context.session_telemetry,
                 stage_one_context.reasoning_effort,
                 stage_one_context.reasoning_summary,
                 stage_one_context.service_tier,
@@ -516,60 +516,60 @@ fn aggregate_stats(outcomes: Vec<JobResult>) -> Stats {
 
 fn emit_metrics(session: &Session, counts: &Stats) {
     if counts.claimed > 0 {
-        session.services.otel_manager.counter(
+        session.services.session_telemetry.counter(
             metrics::MEMORY_PHASE_ONE_JOBS,
             counts.claimed as i64,
             &[("status", "claimed")],
         );
     }
     if counts.succeeded_with_output > 0 {
-        session.services.otel_manager.counter(
+        session.services.session_telemetry.counter(
             metrics::MEMORY_PHASE_ONE_JOBS,
             counts.succeeded_with_output as i64,
             &[("status", "succeeded")],
         );
-        session.services.otel_manager.counter(
+        session.services.session_telemetry.counter(
             metrics::MEMORY_PHASE_ONE_OUTPUT,
             counts.succeeded_with_output as i64,
             &[],
         );
     }
     if counts.succeeded_no_output > 0 {
-        session.services.otel_manager.counter(
+        session.services.session_telemetry.counter(
             metrics::MEMORY_PHASE_ONE_JOBS,
             counts.succeeded_no_output as i64,
             &[("status", "succeeded_no_output")],
         );
     }
     if counts.failed > 0 {
-        session.services.otel_manager.counter(
+        session.services.session_telemetry.counter(
             metrics::MEMORY_PHASE_ONE_JOBS,
             counts.failed as i64,
             &[("status", "failed")],
         );
     }
     if let Some(token_usage) = counts.total_token_usage.as_ref() {
-        session.services.otel_manager.histogram(
+        session.services.session_telemetry.histogram(
             metrics::MEMORY_PHASE_ONE_TOKEN_USAGE,
             token_usage.total_tokens.max(0),
             &[("token_type", "total")],
         );
-        session.services.otel_manager.histogram(
+        session.services.session_telemetry.histogram(
             metrics::MEMORY_PHASE_ONE_TOKEN_USAGE,
             token_usage.input_tokens.max(0),
             &[("token_type", "input")],
         );
-        session.services.otel_manager.histogram(
+        session.services.session_telemetry.histogram(
             metrics::MEMORY_PHASE_ONE_TOKEN_USAGE,
             token_usage.cached_input(),
             &[("token_type", "cached_input")],
         );
-        session.services.otel_manager.histogram(
+        session.services.session_telemetry.histogram(
             metrics::MEMORY_PHASE_ONE_TOKEN_USAGE,
             token_usage.output_tokens.max(0),
             &[("token_type", "output")],
         );
-        session.services.otel_manager.histogram(
+        session.services.session_telemetry.histogram(
             metrics::MEMORY_PHASE_ONE_TOKEN_USAGE,
             token_usage.reasoning_output_tokens.max(0),
             &[("token_type", "reasoning_output")],
diff --git a/codex-rs/core/src/memories/phase2.rs b/codex-rs/core/src/memories/phase2.rs
index c8575035e..1a31bb335 100644
--- a/codex-rs/core/src/memories/phase2.rs
+++ b/codex-rs/core/src/memories/phase2.rs
@@ -43,7 +43,7 @@ struct Counters {
 pub(super) async fn run(session: &Arc<Session>, config: Arc<Config>) {
     let phase_two_e2e_timer = session
         .services
-        .otel_manager
+        .session_telemetry
         .start_timer(metrics::MEMORY_PHASE_TWO_E2E_MS, &[])
         .ok();
 
@@ -59,7 +59,7 @@ pub(super) async fn run(session: &Arc<Session>, config: Arc<Config>) {
     let claim = match job::claim(session, db).await {
         Ok(claim) => claim,
         Err(e) => {
-            session.services.otel_manager.counter(
+            session.services.session_telemetry.counter(
                 metrics::MEMORY_PHASE_TWO_JOBS,
                 1,
                 &[("status", e)],
@@ -183,7 +183,7 @@ mod job {
         session: &Arc<Session>,
         db: &StateRuntime,
     ) -> Result<Claim, &'static str> {
-        let otel_manager = &session.services.otel_manager;
+        let session_telemetry = &session.services.session_telemetry;
         let claim = db
             .try_claim_global_phase2_job(session.conversation_id, phase_two::JOB_LEASE_SECONDS)
             .await
@@ -196,7 +196,11 @@ mod job {
                 ownership_token,
                 input_watermark,
             } => {
-                otel_manager.counter(metrics::MEMORY_PHASE_TWO_JOBS, 1, &[("status", "claimed")]);
+                session_telemetry.counter(
+                    metrics::MEMORY_PHASE_TWO_JOBS,
+                    1,
+                    &[("status", "claimed")],
+                );
                 (ownership_token, input_watermark)
             }
             codex_state::Phase2JobClaimOutcome::SkippedNotDirty => return Err("skipped_not_dirty"),
@@ -212,7 +216,7 @@ mod job {
         claim: &Claim,
         reason: &'static str,
     ) {
-        session.services.otel_manager.counter(
+        session.services.session_telemetry.counter(
             metrics::MEMORY_PHASE_TWO_JOBS,
             1,
             &[("status", reason)],
@@ -244,7 +248,7 @@ mod job {
         selected_outputs: &[codex_state::Stage1Output],
         reason: &'static str,
     ) {
-        session.services.otel_manager.counter(
+        session.services.session_telemetry.counter(
             metrics::MEMORY_PHASE_TWO_JOBS,
             1,
             &[("status", reason)],
@@ -450,7 +454,7 @@ pub(super) fn get_watermark(
 }
 
 fn emit_metrics(session: &Arc<Session>, counters: Counters) {
-    let otel = session.services.otel_manager.clone();
+    let otel = session.services.session_telemetry.clone();
     if counters.input > 0 {
         otel.counter(metrics::MEMORY_PHASE_TWO_INPUT, counters.input, &[]);
     }
@@ -463,7 +467,7 @@ fn emit_metrics(session: &Arc<Session>, counters: Counters) {
 }
 
 fn emit_token_usage_metrics(session: &Arc<Session>, token_usage: &TokenUsage) {
-    let otel = session.services.otel_manager.clone();
+    let otel = session.services.session_telemetry.clone();
     otel.histogram(
         metrics::MEMORY_PHASE_TWO_TOKEN_USAGE,
         token_usage.total_tokens.max(0),
diff --git a/codex-rs/core/src/memories/usage.rs b/codex-rs/core/src/memories/usage.rs
index ff82d6e16..8a86babb4 100644
--- a/codex-rs/core/src/memories/usage.rs
+++ b/codex-rs/core/src/memories/usage.rs
@@ -39,7 +39,7 @@ pub(crate) async fn emit_metric_for_tool_read(invocation: &ToolInvocation, succe
 
     let success = if success { "true" } else { "false" };
     for kind in kinds {
-        invocation.turn.otel_manager.counter(
+        invocation.turn.session_telemetry.counter(
             MEMORIES_USAGE_METRIC,
             1,
             &[
diff --git a/codex-rs/core/src/memory_trace.rs b/codex-rs/core/src/memory_trace.rs
index 2e114b9aa..5cc499442 100644
--- a/codex-rs/core/src/memory_trace.rs
+++ b/codex-rs/core/src/memory_trace.rs
@@ -6,7 +6,7 @@ use crate::error::CodexErr;
 use crate::error::Result;
 use codex_api::RawMemory as ApiRawMemory;
 use codex_api::RawMemoryMetadata as ApiRawMemoryMetadata;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_protocol::openai_models::ModelInfo;
 use codex_protocol::openai_models::ReasoningEffort as ReasoningEffortConfig;
 use serde_json::Map;
@@ -38,7 +38,7 @@ pub async fn build_memories_from_trace_files(
     trace_paths: &[PathBuf],
     model_info: &ModelInfo,
     effort: Option<ReasoningEffortConfig>,
-    otel_manager: &OtelManager,
+    session_telemetry: &SessionTelemetry,
 ) -> Result<Vec<BuiltMemory>> {
     if trace_paths.is_empty() {
         return Ok(Vec::new());
@@ -51,7 +51,7 @@ pub async fn build_memories_from_trace_files(
 
     let raw_memories = prepared.iter().map(|trace| trace.payload.clone()).collect();
     let output = client
-        .summarize_memories(raw_memories, model_info, effort, otel_manager)
+        .summarize_memories(raw_memories, model_info, effort, session_telemetry)
         .await?;
     if output.len() != prepared.len() {
         return Err(CodexErr::InvalidRequest(format!(
diff --git a/codex-rs/core/src/rollout/metadata.rs b/codex-rs/core/src/rollout/metadata.rs
index 66ca9248e..3d46df0f8 100644
--- a/codex-rs/core/src/rollout/metadata.rs
+++ b/codex-rs/core/src/rollout/metadata.rs
@@ -7,7 +7,7 @@ use chrono::DateTime;
 use chrono::NaiveDateTime;
 use chrono::Timelike;
 use chrono::Utc;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_protocol::ThreadId;
 use codex_protocol::protocol::AskForApproval;
 use codex_protocol::protocol::RolloutItem;
@@ -96,7 +96,7 @@ pub(crate) fn builder_from_items(
 pub(crate) async fn extract_metadata_from_rollout(
     rollout_path: &Path,
     default_provider: &str,
-    otel: Option<&OtelManager>,
+    otel: Option<&SessionTelemetry>,
 ) -> anyhow::Result<ExtractionOutcome> {
     let (items, _thread_id, parse_errors) =
         RolloutRecorder::load_rollout_items(rollout_path).await?;
@@ -144,7 +144,7 @@ pub(crate) async fn extract_metadata_from_rollout(
 pub(crate) async fn backfill_sessions(
     runtime: &codex_state::StateRuntime,
     config: &Config,
-    otel: Option<&OtelManager>,
+    otel: Option<&SessionTelemetry>,
 ) {
     let timer = otel.and_then(|otel| otel.start_timer(DB_METRIC_BACKFILL_DURATION_MS, &[]).ok());
     let backfill_state = match runtime.get_backfill_state().await {
diff --git a/codex-rs/core/src/shell_snapshot.rs b/codex-rs/core/src/shell_snapshot.rs
index 291129f97..5d285cbfa 100644
--- a/codex-rs/core/src/shell_snapshot.rs
+++ b/codex-rs/core/src/shell_snapshot.rs
@@ -14,7 +14,7 @@ use anyhow::Context;
 use anyhow::Result;
 use anyhow::anyhow;
 use anyhow::bail;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_protocol::ThreadId;
 use tokio::fs;
 use tokio::process::Command;
@@ -40,7 +40,7 @@ impl ShellSnapshot {
         session_id: ThreadId,
         session_cwd: PathBuf,
         shell: &mut Shell,
-        otel_manager: OtelManager,
+        session_telemetry: SessionTelemetry,
     ) -> watch::Sender<Option<Arc<ShellSnapshot>>> {
         let (shell_snapshot_tx, shell_snapshot_rx) = watch::channel(None);
         shell.shell_snapshot = shell_snapshot_rx;
@@ -51,7 +51,7 @@ impl ShellSnapshot {
             session_cwd,
             shell.clone(),
             shell_snapshot_tx.clone(),
-            otel_manager,
+            session_telemetry,
         );
 
         shell_snapshot_tx
@@ -63,7 +63,7 @@ impl ShellSnapshot {
         session_cwd: PathBuf,
         shell: Shell,
         shell_snapshot_tx: watch::Sender<Option<Arc<ShellSnapshot>>>,
-        otel_manager: OtelManager,
+        session_telemetry: SessionTelemetry,
     ) {
         Self::spawn_snapshot_task(
             codex_home,
@@ -71,7 +71,7 @@ impl ShellSnapshot {
             session_cwd,
             shell,
             shell_snapshot_tx,
-            otel_manager,
+            session_telemetry,
         );
     }
 
@@ -81,12 +81,12 @@ impl ShellSnapshot {
         session_cwd: PathBuf,
         snapshot_shell: Shell,
         shell_snapshot_tx: watch::Sender<Option<Arc<ShellSnapshot>>>,
-        otel_manager: OtelManager,
+        session_telemetry: SessionTelemetry,
     ) {
         let snapshot_span = info_span!("shell_snapshot", thread_id = %session_id);
         tokio::spawn(
             async move {
-                let timer = otel_manager.start_timer("codex.shell_snapshot.duration_ms", &[]);
+                let timer = session_telemetry.start_timer("codex.shell_snapshot.duration_ms", &[]);
                 let snapshot = ShellSnapshot::try_new(
                     &codex_home,
                     session_id,
@@ -102,7 +102,7 @@ impl ShellSnapshot {
                 if let Some(failure_reason) = snapshot.as_ref().err() {
                     counter_tags.push(("failure_reason", *failure_reason));
                 }
-                otel_manager.counter("codex.shell_snapshot", 1, &counter_tags);
+                session_telemetry.counter("codex.shell_snapshot", 1, &counter_tags);
                 let _ = shell_snapshot_tx.send(snapshot.ok());
             }
             .instrument(snapshot_span),
diff --git a/codex-rs/core/src/skills/injection.rs b/codex-rs/core/src/skills/injection.rs
index de50d6cdd..ac55f3b8f 100644
--- a/codex-rs/core/src/skills/injection.rs
+++ b/codex-rs/core/src/skills/injection.rs
@@ -9,7 +9,7 @@ use crate::analytics_client::TrackEventsContext;
 use crate::instructions::SkillInstructions;
 use crate::mentions::build_skill_name_counts;
 use crate::skills::SkillMetadata;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_protocol::models::ResponseItem;
 use codex_protocol::user_input::UserInput;
 use tokio::fs;
@@ -22,7 +22,7 @@ pub(crate) struct SkillInjections {
 
 pub(crate) async fn build_skill_injections(
     mentioned_skills: &[SkillMetadata],
-    otel: Option<&OtelManager>,
+    otel: Option<&SessionTelemetry>,
     analytics_client: &AnalyticsEventsClient,
     tracking: TrackEventsContext,
 ) -> SkillInjections {
@@ -69,7 +69,11 @@ pub(crate) async fn build_skill_injections(
     result
 }
 
-fn emit_skill_injected_metric(otel: Option<&OtelManager>, skill: &SkillMetadata, status: &str) {
+fn emit_skill_injected_metric(
+    otel: Option<&SessionTelemetry>,
+    skill: &SkillMetadata,
+    status: &str,
+) {
     let Some(otel) = otel else {
         return;
     };
diff --git a/codex-rs/core/src/skills/invocation_utils.rs b/codex-rs/core/src/skills/invocation_utils.rs
index 36bb0c3ca..c4310bace 100644
--- a/codex-rs/core/src/skills/invocation_utils.rs
+++ b/codex-rs/core/src/skills/invocation_utils.rs
@@ -94,7 +94,7 @@ pub(crate) async fn maybe_emit_implicit_skill_invocation(
         return;
     }
 
-    turn_context.otel_manager.counter(
+    turn_context.session_telemetry.counter(
         "codex.skill.injected",
         1,
         &[
diff --git a/codex-rs/core/src/state/service.rs b/codex-rs/core/src/state/service.rs
index e2792638e..012e17bbf 100644
--- a/codex-rs/core/src/state/service.rs
+++ b/codex-rs/core/src/state/service.rs
@@ -20,7 +20,7 @@ use crate::tools::runtimes::ExecveSessionApproval;
 use crate::tools::sandboxing::ApprovalStore;
 use crate::unified_exec::UnifiedExecProcessManager;
 use codex_hooks::Hooks;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_utils_absolute_path::AbsolutePathBuf;
 use std::path::PathBuf;
 use tokio::sync::Mutex;
@@ -45,7 +45,7 @@ pub(crate) struct SessionServices {
     pub(crate) exec_policy: ExecPolicyManager,
     pub(crate) auth_manager: Arc<AuthManager>,
     pub(crate) models_manager: Arc<ModelsManager>,
-    pub(crate) otel_manager: OtelManager,
+    pub(crate) session_telemetry: SessionTelemetry,
     pub(crate) tool_approvals: Mutex<ApprovalStore>,
     #[cfg_attr(not(unix), allow(dead_code))]
     pub(crate) execve_session_approvals: RwLock<HashMap<AbsolutePathBuf, ExecveSessionApproval>>,
diff --git a/codex-rs/core/src/state_db.rs b/codex-rs/core/src/state_db.rs
index 2a9fa5e45..922331e3c 100644
--- a/codex-rs/core/src/state_db.rs
+++ b/codex-rs/core/src/state_db.rs
@@ -7,7 +7,7 @@ use chrono::DateTime;
 use chrono::NaiveDateTime;
 use chrono::Timelike;
 use chrono::Utc;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_protocol::ThreadId;
 use codex_protocol::dynamic_tools::DynamicToolSpec;
 use codex_protocol::protocol::RolloutItem;
@@ -26,7 +26,10 @@ pub type StateDbHandle = Arc<codex_state::StateRuntime>;
 
 /// Initialize the state runtime for thread state persistence and backfill checks. To only be used
 /// inside `core`. The initialization should not be done anywhere else.
-pub(crate) async fn init(config: &Config, otel: Option<&OtelManager>) -> Option<StateDbHandle> {
+pub(crate) async fn init(
+    config: &Config,
+    otel: Option<&SessionTelemetry>,
+) -> Option<StateDbHandle> {
     let runtime = match codex_state::StateRuntime::init(
         config.sqlite_home.clone(),
         config.model_provider_id.clone(),
@@ -69,7 +72,10 @@ pub(crate) async fn init(config: &Config, otel: Option<&OtelManager>) -> Option<
 }
 
 /// Get the DB if the feature is enabled and the DB exists.
-pub async fn get_state_db(config: &Config, otel: Option<&OtelManager>) -> Option<StateDbHandle> {
+pub async fn get_state_db(
+    config: &Config,
+    otel: Option<&SessionTelemetry>,
+) -> Option<StateDbHandle> {
     let state_path = codex_state::state_db_path(config.sqlite_home.as_path());
     if !tokio::fs::try_exists(&state_path).await.unwrap_or(false) {
         return None;
diff --git a/codex-rs/core/src/stream_events_utils.rs b/codex-rs/core/src/stream_events_utils.rs
index 7f2ddb251..106f88105 100644
--- a/codex-rs/core/src/stream_events_utils.rs
+++ b/codex-rs/core/src/stream_events_utils.rs
@@ -220,7 +220,7 @@ pub(crate) async fn handle_output_item_done(
         Err(FunctionCallError::MissingLocalShellCallId) => {
             let msg = "LocalShellCall without call_id or id";
             ctx.turn_context
-                .otel_manager
+                .session_telemetry
                 .log_tool_failed("local_shell", msg);
             tracing::error!(msg);
 
diff --git a/codex-rs/core/src/tasks/compact.rs b/codex-rs/core/src/tasks/compact.rs
index a8c0a5e06..be2fcca85 100644
--- a/codex-rs/core/src/tasks/compact.rs
+++ b/codex-rs/core/src/tasks/compact.rs
@@ -30,14 +30,14 @@ impl SessionTask for CompactTask {
     ) -> Option<String> {
         let session = session.clone_session();
         let _ = if crate::compact::should_use_remote_compact_task(&ctx.provider) {
-            let _ = session.services.otel_manager.counter(
+            let _ = session.services.session_telemetry.counter(
                 "codex.task.compact",
                 1,
                 &[("type", "remote")],
             );
             crate::compact_remote::run_remote_compact_task(session.clone(), ctx).await
         } else {
-            let _ = session.services.otel_manager.counter(
+            let _ = session.services.session_telemetry.counter(
                 "codex.task.compact",
                 1,
                 &[("type", "local")],
diff --git a/codex-rs/core/src/tasks/mod.rs b/codex-rs/core/src/tasks/mod.rs
index f6962edfd..a07e52f73 100644
--- a/codex-rs/core/src/tasks/mod.rs
+++ b/codex-rs/core/src/tasks/mod.rs
@@ -144,7 +144,7 @@ impl Session {
         let done = Arc::new(Notify::new());
 
         let timer = turn_context
-            .otel_manager
+            .session_telemetry
             .start_timer("codex.turn.e2e_duration_ms", &[])
             .ok();
 
@@ -272,7 +272,7 @@ impl Session {
                     "false"
                 },
             );
-            self.services.otel_manager.histogram(
+            self.services.session_telemetry.histogram(
                 "codex.turn.tool.call",
                 i64::try_from(turn_tool_calls).unwrap_or(i64::MAX),
                 &[tmp_mem],
@@ -295,27 +295,27 @@ impl Session {
                     - token_usage_at_turn_start.total_tokens)
                     .max(0),
             };
-            self.services.otel_manager.histogram(
+            self.services.session_telemetry.histogram(
                 "codex.turn.token_usage",
                 turn_token_usage.total_tokens,
                 &[("token_type", "total"), tmp_mem],
             );
-            self.services.otel_manager.histogram(
+            self.services.session_telemetry.histogram(
                 "codex.turn.token_usage",
                 turn_token_usage.input_tokens,
                 &[("token_type", "input"), tmp_mem],
             );
-            self.services.otel_manager.histogram(
+            self.services.session_telemetry.histogram(
                 "codex.turn.token_usage",
                 turn_token_usage.cached_input(),
                 &[("token_type", "cached_input"), tmp_mem],
             );
-            self.services.otel_manager.histogram(
+            self.services.session_telemetry.histogram(
                 "codex.turn.token_usage",
                 turn_token_usage.output_tokens,
                 &[("token_type", "output"), tmp_mem],
             );
-            self.services.otel_manager.histogram(
+            self.services.session_telemetry.histogram(
                 "codex.turn.token_usage",
                 turn_token_usage.reasoning_output_tokens,
                 &[("token_type", "reasoning_output"), tmp_mem],
diff --git a/codex-rs/core/src/tasks/regular.rs b/codex-rs/core/src/tasks/regular.rs
index e3a9ef4c3..78bbd1db4 100644
--- a/codex-rs/core/src/tasks/regular.rs
+++ b/codex-rs/core/src/tasks/regular.rs
@@ -41,7 +41,7 @@ impl RegularTask {
             .prewarm_websocket(
                 &prompt,
                 &turn_context.model_info,
-                &turn_context.otel_manager,
+                &turn_context.session_telemetry,
                 turn_context.reasoning_effort,
                 turn_context.reasoning_summary,
                 turn_context.config.service_tier,
diff --git a/codex-rs/core/src/tasks/review.rs b/codex-rs/core/src/tasks/review.rs
index 4787ee782..51ac3a1d3 100644
--- a/codex-rs/core/src/tasks/review.rs
+++ b/codex-rs/core/src/tasks/review.rs
@@ -57,7 +57,7 @@ impl SessionTask for ReviewTask {
         let _ = session
             .session
             .services
-            .otel_manager
+            .session_telemetry
             .counter("codex.task.review", 1, &[]);
 
         // Start sub-codex conversation and get the receiver for events.
diff --git a/codex-rs/core/src/tasks/undo.rs b/codex-rs/core/src/tasks/undo.rs
index 95f51c1ec..05cd928b5 100644
--- a/codex-rs/core/src/tasks/undo.rs
+++ b/codex-rs/core/src/tasks/undo.rs
@@ -45,7 +45,7 @@ impl SessionTask for UndoTask {
         let _ = session
             .session
             .services
-            .otel_manager
+            .session_telemetry
             .counter("codex.task.undo", 1, &[]);
         let sess = session.clone_session();
         sess.send_event(
diff --git a/codex-rs/core/src/tasks/user_shell.rs b/codex-rs/core/src/tasks/user_shell.rs
index 2f77d9fce..a6a1301cd 100644
--- a/codex-rs/core/src/tasks/user_shell.rs
+++ b/codex-rs/core/src/tasks/user_shell.rs
@@ -98,7 +98,7 @@ pub(crate) async fn execute_user_shell_command(
 ) {
     session
         .services
-        .otel_manager
+        .session_telemetry
         .counter("codex.task.user_shell", 1, &[]);
 
     if mode == UserShellCommandMode::StandaloneTurn {
diff --git a/codex-rs/core/src/tools/handlers/multi_agents.rs b/codex-rs/core/src/tools/handlers/multi_agents.rs
index 20b001315..1d3805b32 100644
--- a/codex-rs/core/src/tools/handlers/multi_agents.rs
+++ b/codex-rs/core/src/tools/handlers/multi_agents.rs
@@ -214,7 +214,7 @@ mod spawn {
             .await;
         let new_thread_id = result?;
         let role_tag = role_name.unwrap_or(DEFAULT_ROLE_NAME);
-        turn.otel_manager
+        turn.session_telemetry
             .counter("codex.multi_agent.spawn", 1, &[("role", role_tag)]);
 
         let content = serde_json::to_string(&SpawnAgentResult {
@@ -425,7 +425,7 @@ mod resume_agent {
         if let Some(err) = error {
             return Err(err);
         }
-        turn.otel_manager
+        turn.session_telemetry
             .counter("codex.multi_agent.resume", 1, &[]);
 
         let content = serde_json::to_string(&ResumeAgentResult { status }).map_err(|err| {
diff --git a/codex-rs/core/src/tools/orchestrator.rs b/codex-rs/core/src/tools/orchestrator.rs
index f66c79bbb..e78f0bcfc 100644
--- a/codex-rs/core/src/tools/orchestrator.rs
+++ b/codex-rs/core/src/tools/orchestrator.rs
@@ -108,7 +108,7 @@ impl ToolOrchestrator {
     where
         T: ToolRuntime<Rq, Out>,
     {
-        let otel = turn_ctx.otel_manager.clone();
+        let otel = turn_ctx.session_telemetry.clone();
         let otel_tn = &tool_ctx.tool_name;
         let otel_ci = &tool_ctx.call_id;
         let otel_user = ToolDecisionSource::User;
diff --git a/codex-rs/core/src/tools/registry.rs b/codex-rs/core/src/tools/registry.rs
index 77d3c4150..74a44f1db 100644
--- a/codex-rs/core/src/tools/registry.rs
+++ b/codex-rs/core/src/tools/registry.rs
@@ -82,7 +82,7 @@ impl ToolRegistry {
     ) -> Result<ResponseInputItem, FunctionCallError> {
         let tool_name = invocation.tool_name.clone();
         let call_id_owned = invocation.call_id.clone();
-        let otel = invocation.turn.otel_manager.clone();
+        let otel = invocation.turn.session_telemetry.clone();
         let payload_for_response = invocation.payload.clone();
         let log_payload = payload_for_response.log_payload();
         let metric_tags = [
diff --git a/codex-rs/core/src/tools/sandboxing.rs b/codex-rs/core/src/tools/sandboxing.rs
index 28d87b5bf..df8f7c152 100644
--- a/codex-rs/core/src/tools/sandboxing.rs
+++ b/codex-rs/core/src/tools/sandboxing.rs
@@ -88,7 +88,7 @@ where
 
     let decision = fetch().await;
 
-    services.otel_manager.counter(
+    services.session_telemetry.counter(
         "codex.approval.requested",
         1,
         &[
diff --git a/codex-rs/core/src/turn_timing.rs b/codex-rs/core/src/turn_timing.rs
index b825fde94..765373c35 100644
--- a/codex-rs/core/src/turn_timing.rs
+++ b/codex-rs/core/src/turn_timing.rs
@@ -21,7 +21,7 @@ pub(crate) async fn record_turn_ttft_metric(turn_context: &TurnContext, event: &
         return;
     };
     turn_context
-        .otel_manager
+        .session_telemetry
         .record_duration(TURN_TTFT_DURATION_METRIC, duration, &[]);
 }
 
@@ -34,7 +34,7 @@ pub(crate) async fn record_turn_ttfm_metric(turn_context: &TurnContext, item: &T
         return;
     };
     turn_context
-        .otel_manager
+        .session_telemetry
         .record_duration(TURN_TTFM_DURATION_METRIC, duration, &[]);
 }
 
diff --git a/codex-rs/core/tests/responses_headers.rs b/codex-rs/core/tests/responses_headers.rs
index be41a25a0..d5376fcd7 100644
--- a/codex-rs/core/tests/responses_headers.rs
+++ b/codex-rs/core/tests/responses_headers.rs
@@ -7,7 +7,7 @@ use codex_core::ModelProviderInfo;
 use codex_core::Prompt;
 use codex_core::ResponseEvent;
 use codex_core::WireApi;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_protocol::ThreadId;
 use codex_protocol::config_types::ReasoningSummary;
@@ -72,7 +72,7 @@ async fn responses_stream_includes_subagent_header_on_review() {
     let session_source = SessionSource::SubAgent(SubAgentSource::Review);
     let model_info =
         codex_core::test_support::construct_model_info_offline(model.as_str(), &config);
-    let otel_manager = OtelManager::new(
+    let session_telemetry = SessionTelemetry::new(
         conversation_id,
         model.as_str(),
         model_info.slug.as_str(),
@@ -113,7 +113,7 @@ async fn responses_stream_includes_subagent_header_on_review() {
         .stream(
             &prompt,
             &model_info,
-            &otel_manager,
+            &session_telemetry,
             effort,
             summary.unwrap_or(model_info.default_reasoning_summary),
             None,
@@ -185,7 +185,7 @@ async fn responses_stream_includes_subagent_header_on_other() {
     let model_info =
         codex_core::test_support::construct_model_info_offline(model.as_str(), &config);
 
-    let otel_manager = OtelManager::new(
+    let session_telemetry = SessionTelemetry::new(
         conversation_id,
         model.as_str(),
         model_info.slug.as_str(),
@@ -226,7 +226,7 @@ async fn responses_stream_includes_subagent_header_on_other() {
         .stream(
             &prompt,
             &model_info,
-            &otel_manager,
+            &session_telemetry,
             effort,
             summary.unwrap_or(model_info.default_reasoning_summary),
             None,
@@ -297,7 +297,7 @@ async fn responses_respects_model_info_overrides_from_config() {
         SessionSource::SubAgent(SubAgentSource::Other("override-check".to_string()));
     let model_info =
         codex_core::test_support::construct_model_info_offline(model.as_str(), &config);
-    let otel_manager = OtelManager::new(
+    let session_telemetry = SessionTelemetry::new(
         conversation_id,
         model.as_str(),
         model_info.slug.as_str(),
@@ -338,7 +338,7 @@ async fn responses_respects_model_info_overrides_from_config() {
         .stream(
             &prompt,
             &model_info,
-            &otel_manager,
+            &session_telemetry,
             effort,
             summary.unwrap_or(model_info.default_reasoning_summary),
             None,
diff --git a/codex-rs/core/tests/suite/client.rs b/codex-rs/core/tests/suite/client.rs
index 3ac9a72c3..30eac507c 100644
--- a/codex-rs/core/tests/suite/client.rs
+++ b/codex-rs/core/tests/suite/client.rs
@@ -12,7 +12,7 @@ use codex_core::default_client::originator;
 use codex_core::error::CodexErr;
 use codex_core::features::Feature;
 use codex_core::models_manager::collaboration_mode_presets::CollaborationModesConfig;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_protocol::ThreadId;
 use codex_protocol::config_types::CollaborationMode;
@@ -1752,7 +1752,7 @@ async fn azure_responses_request_includes_store_and_reasoning_ids() {
     let conversation_id = ThreadId::new();
     let auth_manager =
         codex_core::test_support::auth_manager_from_auth(CodexAuth::from_api_key("Test API Key"));
-    let otel_manager = OtelManager::new(
+    let session_telemetry = SessionTelemetry::new(
         conversation_id,
         model.as_str(),
         model_info.slug.as_str(),
@@ -1844,7 +1844,7 @@ async fn azure_responses_request_includes_store_and_reasoning_ids() {
         .stream(
             &prompt,
             &model_info,
-            &otel_manager,
+            &session_telemetry,
             effort,
             summary.unwrap_or(ReasoningSummary::Auto),
             None,
diff --git a/codex-rs/core/tests/suite/client_websockets.rs b/codex-rs/core/tests/suite/client_websockets.rs
index 4896a0fa1..cda634448 100755
--- a/codex-rs/core/tests/suite/client_websockets.rs
+++ b/codex-rs/core/tests/suite/client_websockets.rs
@@ -9,7 +9,7 @@ use codex_core::WireApi;
 use codex_core::X_RESPONSESAPI_INCLUDE_TIMING_METRICS_HEADER;
 use codex_core::features::Feature;
 use codex_core::ws_version_from_features;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_otel::metrics::MetricsClient;
 use codex_otel::metrics::MetricsConfig;
@@ -56,7 +56,7 @@ struct WebsocketTestHarness {
     model_info: ModelInfo,
     effort: Option<ReasoningEffortConfig>,
     summary: ReasoningSummary,
-    otel_manager: OtelManager,
+    session_telemetry: SessionTelemetry,
 }
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
@@ -105,7 +105,7 @@ async fn responses_websocket_preconnect_reuses_connection() {
     let harness = websocket_harness(&server).await;
     let mut client_session = harness.client.new_session();
     client_session
-        .preconnect_websocket(&harness.otel_manager, &harness.model_info)
+        .preconnect_websocket(&harness.session_telemetry, &harness.model_info)
         .await
         .expect("websocket preconnect failed");
     let prompt = prompt_with_input(vec![message_item("hello")]);
@@ -134,7 +134,7 @@ async fn responses_websocket_request_prewarm_reuses_connection() {
         .prewarm_websocket(
             &prompt,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             None,
@@ -207,7 +207,7 @@ async fn responses_websocket_preconnect_is_reused_even_with_header_changes() {
     let harness = websocket_harness(&server).await;
     let mut client_session = harness.client.new_session();
     client_session
-        .preconnect_websocket(&harness.otel_manager, &harness.model_info)
+        .preconnect_websocket(&harness.session_telemetry, &harness.model_info)
         .await
         .expect("websocket preconnect failed");
     let prompt = prompt_with_input(vec![message_item("hello")]);
@@ -215,7 +215,7 @@ async fn responses_websocket_preconnect_is_reused_even_with_header_changes() {
         .stream(
             &prompt,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             None,
@@ -253,7 +253,7 @@ async fn responses_websocket_request_prewarm_is_reused_even_with_header_changes(
         .prewarm_websocket(
             &prompt,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             None,
@@ -265,7 +265,7 @@ async fn responses_websocket_request_prewarm_is_reused_even_with_header_changes(
         .stream(
             &prompt,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             None,
@@ -318,7 +318,7 @@ async fn responses_websocket_prewarm_uses_v2_when_model_prefers_websockets_and_f
         .prewarm_websocket(
             &prompt,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             None,
@@ -371,7 +371,7 @@ async fn responses_websocket_preconnect_runs_when_only_v2_feature_enabled() {
     let harness = websocket_harness_with_options(&server, false, false, true, false).await;
     let mut client_session = harness.client.new_session();
     client_session
-        .preconnect_websocket(&harness.otel_manager, &harness.model_info)
+        .preconnect_websocket(&harness.session_telemetry, &harness.model_info)
         .await
         .expect("websocket preconnect failed");
 
@@ -551,7 +551,7 @@ async fn responses_websocket_emits_websocket_telemetry_events() {
     .await;
 
     let harness = websocket_harness(&server).await;
-    harness.otel_manager.reset_runtime_metrics();
+    harness.session_telemetry.reset_runtime_metrics();
     let mut client_session = harness.client.new_session();
     let prompt = prompt_with_input(vec![message_item("hello")]);
 
@@ -560,7 +560,7 @@ async fn responses_websocket_emits_websocket_telemetry_events() {
     tokio::time::sleep(Duration::from_millis(10)).await;
 
     let summary = harness
-        .otel_manager
+        .session_telemetry
         .runtime_metrics_summary()
         .expect("runtime metrics summary");
     assert_eq!(summary.api_calls.count, 0);
@@ -593,7 +593,7 @@ async fn responses_websocket_includes_timing_metrics_header_when_runtime_metrics
     .await;
 
     let harness = websocket_harness_with_runtime_metrics(&server, true).await;
-    harness.otel_manager.reset_runtime_metrics();
+    harness.session_telemetry.reset_runtime_metrics();
     let mut client_session = harness.client.new_session();
     let prompt = prompt_with_input(vec![message_item("hello")]);
 
@@ -607,7 +607,7 @@ async fn responses_websocket_includes_timing_metrics_header_when_runtime_metrics
     );
 
     let summary = harness
-        .otel_manager
+        .session_telemetry
         .runtime_metrics_summary()
         .expect("runtime metrics summary");
     assert_eq!(summary.responses_api_overhead_ms, 120);
@@ -664,7 +664,7 @@ async fn responses_websocket_emits_reasoning_included_event() {
         .stream(
             &prompt,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             None,
@@ -736,7 +736,7 @@ async fn responses_websocket_emits_rate_limit_events() {
         .stream(
             &prompt,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             None,
@@ -1316,7 +1316,7 @@ async fn responses_websocket_v2_after_error_uses_full_create_without_previous_re
         .stream(
             &prompt_two,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             None,
@@ -1515,7 +1515,7 @@ async fn websocket_harness_with_options(
             .with_runtime_reader(),
     )
     .expect("in-memory metrics client");
-    let otel_manager = OtelManager::new(
+    let session_telemetry = SessionTelemetry::new(
         conversation_id,
         MODEL,
         model_info.slug.as_str(),
@@ -1548,7 +1548,7 @@ async fn websocket_harness_with_options(
         model_info,
         effort,
         summary,
-        otel_manager,
+        session_telemetry,
     }
 }
 
@@ -1581,7 +1581,7 @@ async fn stream_until_complete_with_turn_metadata(
         .stream(
             prompt,
             &harness.model_info,
-            &harness.otel_manager,
+            &harness.session_telemetry,
             harness.effort,
             harness.summary,
             service_tier,
diff --git a/codex-rs/otel/README.md b/codex-rs/otel/README.md
index 02d4fc3a0..be90d6141 100644
--- a/codex-rs/otel/README.md
+++ b/codex-rs/otel/README.md
@@ -4,7 +4,7 @@
 
 - Provider wiring for log/trace/metric exporters (`codex_otel::OtelProvider`,
   `codex_otel::provider`, and the compatibility shim `codex_otel::otel_provider`).
-- Session-scoped business event emission via `codex_otel::OtelManager`.
+- Session-scoped business event emission via `codex_otel::SessionTelemetry`.
 - Low-level metrics APIs via `codex_otel::metrics`.
 - Trace-context helpers via `codex_otel::trace_context` and crate-root re-exports.
 
@@ -49,16 +49,16 @@ if let Some(provider) = OtelProvider::from(&settings)? {
 }
 ```
 
-## OtelManager (events)
+## SessionTelemetry (events)
 
-`OtelManager` adds consistent metadata to tracing events and helps record
+`SessionTelemetry` adds consistent metadata to tracing events and helps record
 Codex-specific session events. Rich session/business events should go through
-`OtelManager`; subsystem-owned audit events can stay with the owning subsystem.
+`SessionTelemetry`; subsystem-owned audit events can stay with the owning subsystem.
 
 ```rust
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 
-let manager = OtelManager::new(
+let manager = SessionTelemetry::new(
     conversation_id,
     model,
     slug,
@@ -134,7 +134,7 @@ use codex_otel::set_parent_from_w3c_trace_context;
 ## Shutdown
 
 - `OtelProvider::shutdown()` stops the OTEL exporter.
-- `OtelManager::shutdown_metrics()` flushes and shuts down the metrics provider.
+- `SessionTelemetry::shutdown_metrics()` flushes and shuts down the metrics provider.
 
 Both are optional because drop performs best-effort shutdown, but calling them
 explicitly gives deterministic flushing (or a shutdown error if flushing does
diff --git a/codex-rs/otel/src/events/mod.rs b/codex-rs/otel/src/events/mod.rs
index cd2c922e5..b0254c92c 100644
--- a/codex-rs/otel/src/events/mod.rs
+++ b/codex-rs/otel/src/events/mod.rs
@@ -1,2 +1,2 @@
-pub(crate) mod otel_manager;
+pub(crate) mod session_telemetry;
 pub(crate) mod shared;
diff --git a/codex-rs/otel/src/events/otel_manager.rs b/codex-rs/otel/src/events/session_telemetry.rs
similarity index 98%
rename from codex-rs/otel/src/events/otel_manager.rs
rename to codex-rs/otel/src/events/session_telemetry.rs
index bfe477f56..50d7614a0 100644
--- a/codex-rs/otel/src/events/otel_manager.rs
+++ b/codex-rs/otel/src/events/session_telemetry.rs
@@ -64,7 +64,7 @@ const RESPONSES_API_ENGINE_IAPI_TBT_FIELD: &str = "engine_iapi_tbt_across_engine
 const RESPONSES_API_ENGINE_SERVICE_TBT_FIELD: &str = "engine_service_tbt_across_engine_calls_ms";
 
 #[derive(Debug, Clone)]
-pub struct OtelEventMetadata {
+pub struct SessionTelemetryMetadata {
     pub(crate) conversation_id: ThreadId,
     pub(crate) auth_mode: Option<String>,
     pub(crate) account_id: Option<String>,
@@ -80,13 +80,13 @@ pub struct OtelEventMetadata {
 }
 
 #[derive(Debug, Clone)]
-pub struct OtelManager {
-    pub(crate) metadata: OtelEventMetadata,
+pub struct SessionTelemetry {
+    pub(crate) metadata: SessionTelemetryMetadata,
     pub(crate) metrics: Option<MetricsClient>,
     pub(crate) metrics_use_metadata_tags: bool,
 }
 
-impl OtelManager {
+impl SessionTelemetry {
     pub fn with_model(mut self, model: &str, slug: &str) -> Self {
         self.metadata.model = model.to_owned();
         self.metadata.slug = slug.to_owned();
@@ -276,9 +276,9 @@ impl OtelManager {
         log_user_prompts: bool,
         terminal_type: String,
         session_source: SessionSource,
-    ) -> OtelManager {
+    ) -> SessionTelemetry {
         Self {
-            metadata: OtelEventMetadata {
+            metadata: SessionTelemetryMetadata {
                 conversation_id,
                 auth_mode: auth_mode.map(|m| m.to_string()),
                 account_id,
@@ -298,7 +298,7 @@ impl OtelManager {
     }
 
     pub fn record_responses(&self, handle_responses_span: &Span, event: &ResponseEvent) {
-        handle_responses_span.record("otel.name", OtelManager::responses_type(event));
+        handle_responses_span.record("otel.name", SessionTelemetry::responses_type(event));
 
         match event {
             ResponseEvent::OutputItemDone(item) => {
@@ -902,7 +902,7 @@ impl OtelManager {
         match event {
             ResponseEvent::Created => "created".into(),
             ResponseEvent::OutputItemDone(item) | ResponseEvent::OutputItemAdded(item) => {
-                OtelManager::responses_item_type(item)
+                SessionTelemetry::responses_item_type(item)
             }
             ResponseEvent::Completed { .. } => "completed".into(),
             ResponseEvent::OutputTextDelta(_) => "text_delta".into(),
diff --git a/codex-rs/otel/src/lib.rs b/codex-rs/otel/src/lib.rs
index 5594b26a7..5a4ba31e4 100644
--- a/codex-rs/otel/src/lib.rs
+++ b/codex-rs/otel/src/lib.rs
@@ -13,8 +13,8 @@ use crate::metrics::Result as MetricsResult;
 use serde::Serialize;
 use strum_macros::Display;
 
-pub use crate::events::otel_manager::OtelEventMetadata;
-pub use crate::events::otel_manager::OtelManager;
+pub use crate::events::session_telemetry::SessionTelemetry;
+pub use crate::events::session_telemetry::SessionTelemetryMetadata;
 pub use crate::metrics::runtime_metrics::RuntimeMetricTotals;
 pub use crate::metrics::runtime_metrics::RuntimeMetricsSummary;
 pub use crate::metrics::timer::Timer;
diff --git a/codex-rs/otel/tests/suite/manager_metrics.rs b/codex-rs/otel/tests/suite/manager_metrics.rs
index 53a9cc89d..a3160d5a4 100644
--- a/codex-rs/otel/tests/suite/manager_metrics.rs
+++ b/codex-rs/otel/tests/suite/manager_metrics.rs
@@ -2,7 +2,7 @@ use crate::harness::attributes_to_map;
 use crate::harness::build_metrics_with_defaults;
 use crate::harness::find_metric;
 use crate::harness::latest_metrics;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_otel::metrics::Result;
 use codex_protocol::ThreadId;
@@ -12,11 +12,11 @@ use opentelemetry_sdk::metrics::data::MetricData;
 use pretty_assertions::assert_eq;
 use std::collections::BTreeMap;
 
-// Ensures OtelManager attaches metadata tags when forwarding metrics.
+// Ensures SessionTelemetry attaches metadata tags when forwarding metrics.
 #[test]
 fn manager_attaches_metadata_tags_to_metrics() -> Result<()> {
     let (metrics, exporter) = build_metrics_with_defaults(&[("service", "codex-cli")])?;
-    let manager = OtelManager::new(
+    let manager = SessionTelemetry::new(
         ThreadId::new(),
         "gpt-5.1",
         "gpt-5.1",
@@ -68,11 +68,11 @@ fn manager_attaches_metadata_tags_to_metrics() -> Result<()> {
     Ok(())
 }
 
-// Ensures metadata tagging can be disabled when recording via OtelManager.
+// Ensures metadata tagging can be disabled when recording via SessionTelemetry.
 #[test]
 fn manager_allows_disabling_metadata_tags() -> Result<()> {
     let (metrics, exporter) = build_metrics_with_defaults(&[])?;
-    let manager = OtelManager::new(
+    let manager = SessionTelemetry::new(
         ThreadId::new(),
         "gpt-4o",
         "gpt-4o",
@@ -113,7 +113,7 @@ fn manager_allows_disabling_metadata_tags() -> Result<()> {
 #[test]
 fn manager_attaches_optional_service_name_tag() -> Result<()> {
     let (metrics, exporter) = build_metrics_with_defaults(&[])?;
-    let manager = OtelManager::new(
+    let manager = SessionTelemetry::new(
         ThreadId::new(),
         "gpt-5.1",
         "gpt-5.1",
diff --git a/codex-rs/otel/tests/suite/otel_export_routing_policy.rs b/codex-rs/otel/tests/suite/otel_export_routing_policy.rs
index 875bfd666..75d9bde83 100644
--- a/codex-rs/otel/tests/suite/otel_export_routing_policy.rs
+++ b/codex-rs/otel/tests/suite/otel_export_routing_policy.rs
@@ -1,4 +1,4 @@
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_otel::otel_provider::OtelProvider;
 use opentelemetry::KeyValue;
@@ -103,7 +103,7 @@ fn otel_export_routing_policy_routes_user_prompt_log_and_trace_events() {
 
     tracing::subscriber::with_default(subscriber, || {
         tracing::callsite::rebuild_interest_cache();
-        let manager = OtelManager::new(
+        let manager = SessionTelemetry::new(
             ThreadId::new(),
             "gpt-5.1",
             "gpt-5.1",
@@ -212,7 +212,7 @@ fn otel_export_routing_policy_routes_tool_result_log_and_trace_events() {
 
     tracing::subscriber::with_default(subscriber, || {
         tracing::callsite::rebuild_interest_cache();
-        let manager = OtelManager::new(
+        let manager = SessionTelemetry::new(
             ThreadId::new(),
             "gpt-5.1",
             "gpt-5.1",
diff --git a/codex-rs/otel/tests/suite/runtime_summary.rs b/codex-rs/otel/tests/suite/runtime_summary.rs
index 8857387d5..c2f252381 100644
--- a/codex-rs/otel/tests/suite/runtime_summary.rs
+++ b/codex-rs/otel/tests/suite/runtime_summary.rs
@@ -1,6 +1,6 @@
-use codex_otel::OtelManager;
 use codex_otel::RuntimeMetricTotals;
 use codex_otel::RuntimeMetricsSummary;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_otel::metrics::MetricsClient;
 use codex_otel::metrics::MetricsConfig;
@@ -20,7 +20,7 @@ fn runtime_metrics_summary_collects_tool_api_and_streaming_metrics() -> Result<(
         MetricsConfig::in_memory("test", "codex-cli", env!("CARGO_PKG_VERSION"), exporter)
             .with_runtime_reader(),
     )?;
-    let manager = OtelManager::new(
+    let manager = SessionTelemetry::new(
         ThreadId::new(),
         "gpt-5.1",
         "gpt-5.1",
diff --git a/codex-rs/otel/tests/suite/snapshot.rs b/codex-rs/otel/tests/suite/snapshot.rs
index e13775af6..6bd9bd819 100644
--- a/codex-rs/otel/tests/suite/snapshot.rs
+++ b/codex-rs/otel/tests/suite/snapshot.rs
@@ -1,6 +1,6 @@
 use crate::harness::attributes_to_map;
 use crate::harness::find_metric;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_otel::metrics::MetricsClient;
 use codex_otel::metrics::MetricsConfig;
@@ -69,7 +69,7 @@ fn manager_snapshot_metrics_collects_without_shutdown() -> Result<()> {
         .with_tag("service", "codex-cli")?
         .with_runtime_reader();
     let metrics = MetricsClient::new(config)?;
-    let manager = OtelManager::new(
+    let manager = SessionTelemetry::new(
         ThreadId::new(),
         "gpt-5.1",
         "gpt-5.1",
diff --git a/codex-rs/state/src/runtime.rs b/codex-rs/state/src/runtime.rs
index a32f041ce..647565b73 100644
--- a/codex-rs/state/src/runtime.rs
+++ b/codex-rs/state/src/runtime.rs
@@ -28,7 +28,7 @@ use crate::model::datetime_to_epoch_seconds;
 use crate::paths::file_modified_time_utc;
 use chrono::DateTime;
 use chrono::Utc;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_protocol::ThreadId;
 use codex_protocol::dynamic_tools::DynamicToolSpec;
 use codex_protocol::protocol::RolloutItem;
@@ -84,7 +84,7 @@ impl StateRuntime {
     pub async fn init(
         codex_home: PathBuf,
         default_provider: String,
-        otel: Option<OtelManager>,
+        otel: Option<SessionTelemetry>,
     ) -> anyhow::Result<Arc<Self>> {
         tokio::fs::create_dir_all(&codex_home).await?;
         let current_state_name = state_db_filename();
diff --git a/codex-rs/state/src/runtime/threads.rs b/codex-rs/state/src/runtime/threads.rs
index e671dfaf6..8825f13fe 100644
--- a/codex-rs/state/src/runtime/threads.rs
+++ b/codex-rs/state/src/runtime/threads.rs
@@ -447,7 +447,7 @@ ON CONFLICT(thread_id, position) DO NOTHING
         &self,
         builder: &ThreadMetadataBuilder,
         items: &[RolloutItem],
-        otel: Option<&OtelManager>,
+        otel: Option<&SessionTelemetry>,
         new_thread_memory_mode: Option<&str>,
         updated_at_override: Option<DateTime<Utc>>,
     ) -> anyhow::Result<()> {
diff --git a/codex-rs/tui/src/app.rs b/codex-rs/tui/src/app.rs
index 32f5d5963..9608cf563 100644
--- a/codex-rs/tui/src/app.rs
+++ b/codex-rs/tui/src/app.rs
@@ -57,7 +57,7 @@ use codex_core::models_manager::model_presets::HIDE_GPT_5_1_CODEX_MAX_MIGRATION_
 use codex_core::models_manager::model_presets::HIDE_GPT5_1_MIGRATION_PROMPT_CONFIG;
 #[cfg(target_os = "windows")]
 use codex_core::windows_sandbox::WindowsSandboxLevelExt;
-use codex_otel::OtelManager;
+use codex_otel::SessionTelemetry;
 use codex_otel::TelemetryAuthMode;
 use codex_protocol::ThreadId;
 use codex_protocol::config_types::Personality;
@@ -637,7 +637,7 @@ async fn handle_model_migration_prompt_if_needed(
 
 pub(crate) struct App {
     pub(crate) server: Arc<ThreadManager>,
-    pub(crate) otel_manager: OtelManager,
+    pub(crate) session_telemetry: SessionTelemetry,
     pub(crate) app_event_tx: AppEventSender,
     pub(crate) chat_widget: ChatWidget,
     pub(crate) auth_manager: Arc<AuthManager>,
@@ -750,7 +750,7 @@ impl App {
             model: Some(self.chat_widget.current_model().to_string()),
             startup_tooltip_override: None,
             status_line_invalid_items_warned: self.status_line_invalid_items_warned.clone(),
-            otel_manager: self.otel_manager.clone(),
+            session_telemetry: self.session_telemetry.clone(),
         }
     }
 
@@ -1437,7 +1437,7 @@ impl App {
             model: Some(model),
             startup_tooltip_override: None,
             status_line_invalid_items_warned: self.status_line_invalid_items_warned.clone(),
-            otel_manager: self.otel_manager.clone(),
+            session_telemetry: self.session_telemetry.clone(),
         };
         self.chat_widget = ChatWidget::new(init, self.server.clone());
         self.reset_thread_event_state();
@@ -1624,7 +1624,7 @@ impl App {
         let auth_mode = auth_ref
             .map(CodexAuth::auth_mode)
             .map(TelemetryAuthMode::from);
-        let otel_manager = OtelManager::new(
+        let session_telemetry = SessionTelemetry::new(
             ThreadId::new(),
             model.as_str(),
             model.as_str(),
@@ -1641,7 +1641,7 @@ impl App {
             .as_ref()
             .is_some_and(|cmd| !cmd.is_empty())
         {
-            otel_manager.counter("codex.status_line", 1, &[]);
+            session_telemetry.counter("codex.status_line", 1, &[]);
         }
 
         let status_line_invalid_items_warned = Arc::new(AtomicBool::new(false));
@@ -1673,7 +1673,7 @@ impl App {
                     model: Some(model.clone()),
                     startup_tooltip_override,
                     status_line_invalid_items_warned: status_line_invalid_items_warned.clone(),
-                    otel_manager: otel_manager.clone(),
+                    session_telemetry: session_telemetry.clone(),
                 };
                 ChatWidget::new(init, thread_manager.clone())
             }
@@ -1708,12 +1708,12 @@ impl App {
                     model: config.model.clone(),
                     startup_tooltip_override: None,
                     status_line_invalid_items_warned: status_line_invalid_items_warned.clone(),
-                    otel_manager: otel_manager.clone(),
+                    session_telemetry: session_telemetry.clone(),
                 };
                 ChatWidget::new_from_existing(init, resumed.thread, resumed.session_configured)
             }
             SessionSelection::Fork(target_session) => {
-                otel_manager.counter("codex.thread.fork", 1, &[("source", "cli_subcommand")]);
+                session_telemetry.counter("codex.thread.fork", 1, &[("source", "cli_subcommand")]);
                 let forked = thread_manager
                     .fork_thread(
                         usize::MAX,
@@ -1745,7 +1745,7 @@ impl App {
                     model: config.model.clone(),
                     startup_tooltip_override: None,
                     status_line_invalid_items_warned: status_line_invalid_items_warned.clone(),
-                    otel_manager: otel_manager.clone(),
+                    session_telemetry: session_telemetry.clone(),
                 };
                 ChatWidget::new_from_existing(init, forked.thread, forked.session_configured)
             }
@@ -1760,7 +1760,7 @@ impl App {
 
         let mut app = Self {
             server: thread_manager.clone(),
-            otel_manager: otel_manager.clone(),
+            session_telemetry: session_telemetry.clone(),
             app_event_tx,
             chat_widget,
             auth_manager: auth_manager.clone(),
@@ -2081,8 +2081,11 @@ impl App {
                 tui.frame_requester().schedule_frame();
             }
             AppEvent::ForkCurrentSession => {
-                self.otel_manager
-                    .counter("codex.thread.fork", 1, &[("source", "slash_command")]);
+                self.session_telemetry.counter(
+                    "codex.thread.fork",
+                    1,
+                    &[("source", "slash_command")],
+                );
                 let summary = session_summary(
                     self.chat_widget.token_usage(),
                     self.chat_widget.thread_id(),
@@ -2343,11 +2346,14 @@ impl App {
                 self.chat_widget.open_windows_sandbox_enable_prompt(preset);
             }
             AppEvent::OpenWindowsSandboxFallbackPrompt { preset } => {
-                self.otel_manager
-                    .counter("codex.windows_sandbox.fallback_prompt_shown", 1, &[]);
+                self.session_telemetry.counter(
+                    "codex.windows_sandbox.fallback_prompt_shown",
+                    1,
+                    &[],
+                );
                 self.chat_widget.clear_windows_sandbox_setup_status();
                 if let Some(started_at) = self.windows_sandbox.setup_started_at.take() {
-                    self.otel_manager.record_duration(
+                    self.session_telemetry.record_duration(
                         "codex.windows_sandbox.elevated_setup_duration_ms",
                         started_at.elapsed(),
                         &[("result", "failure")],
@@ -2380,7 +2386,7 @@ impl App {
 
                     self.chat_widget.show_windows_sandbox_setup_status();
                     self.windows_sandbox.setup_started_at = Some(Instant::now());
-                    let otel_manager = self.otel_manager.clone();
+                    let session_telemetry = self.session_telemetry.clone();
                     tokio::task::spawn_blocking(move || {
                         let result = codex_core::windows_sandbox::run_elevated_setup(
                             &policy,
@@ -2391,7 +2397,7 @@ impl App {
                         );
                         let event = match result {
                             Ok(()) => {
-                                otel_manager.counter(
+                                session_telemetry.counter(
                                     "codex.windows_sandbox.elevated_setup_success",
                                     1,
                                     &[],
@@ -2419,7 +2425,7 @@ impl App {
                                 if let Some(message) = message_tag.as_deref() {
                                     tags.push(("message", message));
                                 }
-                                otel_manager.counter(
+                                session_telemetry.counter(
                                     codex_core::windows_sandbox::elevated_setup_failure_metric_name(
                                         &err,
                                     ),
@@ -2451,7 +2457,7 @@ impl App {
                         std::env::vars().collect();
                     let codex_home = self.config.codex_home.clone();
                     let tx = self.app_event_tx.clone();
-                    let otel_manager = self.otel_manager.clone();
+                    let session_telemetry = self.session_telemetry.clone();
 
                     self.chat_widget.show_windows_sandbox_setup_status();
                     tokio::task::spawn_blocking(move || {
@@ -2462,7 +2468,7 @@ impl App {
                             &env_map,
                             codex_home.as_path(),
                         ) {
-                            otel_manager.counter(
+                            session_telemetry.counter(
                                 "codex.windows_sandbox.legacy_setup_preflight_failed",
                                 1,
                                 &[],
@@ -2545,7 +2551,7 @@ impl App {
                 {
                     self.chat_widget.clear_windows_sandbox_setup_status();
                     if let Some(started_at) = self.windows_sandbox.setup_started_at.take() {
-                        self.otel_manager.record_duration(
+                        self.session_telemetry.record_duration(
                             "codex.windows_sandbox.elevated_setup_duration_ms",
                             started_at.elapsed(),
                             &[("result", "success")],
@@ -3713,7 +3719,7 @@ mod tests {
     use codex_core::config::ConfigBuilder;
     use codex_core::config::ConfigOverrides;
     use codex_core::config::types::ModelAvailabilityNuxConfig;
-    use codex_otel::OtelManager;
+    use codex_otel::SessionTelemetry;
     use codex_protocol::ThreadId;
     use codex_protocol::config_types::CollaborationMode;
     use codex_protocol::config_types::CollaborationModeMask;
@@ -5276,11 +5282,11 @@ mod tests {
         );
         let file_search = FileSearchManager::new(config.cwd.clone(), app_event_tx.clone());
         let model = codex_core::test_support::get_model_offline(config.model.as_deref());
-        let otel_manager = test_otel_manager(&config, model.as_str());
+        let session_telemetry = test_session_telemetry(&config, model.as_str());
 
         App {
             server,
-            otel_manager,
+            session_telemetry,
             app_event_tx,
             chat_widget,
             auth_manager,
@@ -5335,12 +5341,12 @@ mod tests {
         );
         let file_search = FileSearchManager::new(config.cwd.clone(), app_event_tx.clone());
         let model = codex_core::test_support::get_model_offline(config.model.as_deref());
-        let otel_manager = test_otel_manager(&config, model.as_str());
+        let session_telemetry = test_session_telemetry(&config, model.as_str());
 
         (
             App {
                 server,
-                otel_manager,
+                session_telemetry,
                 app_event_tx,
                 chat_widget,
                 auth_manager,
@@ -5391,9 +5397,9 @@ mod tests {
         panic!("expected UserTurn op, saw: {seen:?}");
     }
 
-    fn test_otel_manager(config: &Config, model: &str) -> OtelManager {
+    fn test_session_telemetry(config: &Config, model: &str) -> SessionTelemetry {
         let model_info = codex_core::test_support::construct_model_info_offline(model, config);
-        OtelManager::new(
+        SessionTelemetry::new(
             ThreadId::new(),
             model,
             model_info.slug.as_str(),
diff --git a/codex-rs/tui/src/chatwidget.rs b/codex-rs/tui/src/chatwidget.rs
index 9f2295e65..ae35225b6 100644
--- a/codex-rs/tui/src/chatwidget.rs
+++ b/codex-rs/tui/src/chatwidget.rs
@@ -74,8 +74,8 @@ use codex_core::terminal::TerminalName;
 use codex_core::terminal::terminal_info;
 #[cfg(target_os = "windows")]
 use codex_core::windows_sandbox::WindowsSandboxLevelExt;
-use codex_otel::OtelManager;
 use codex_otel::RuntimeMetricsSummary;
+use codex_otel::SessionTelemetry;
 use codex_protocol::ThreadId;
 use codex_protocol::account::PlanType;
 use codex_protocol::approvals::ElicitationRequestEvent;
@@ -478,7 +478,7 @@ pub(crate) struct ChatWidgetInit {
     pub(crate) startup_tooltip_override: Option<String>,
     // Shared latch so we only warn once about invalid status-line item IDs.
     pub(crate) status_line_invalid_items_warned: Arc<AtomicBool>,
-    pub(crate) otel_manager: OtelManager,
+    pub(crate) session_telemetry: SessionTelemetry,
 }
 
 #[derive(Default)]
@@ -560,7 +560,7 @@ pub(crate) struct ChatWidget {
     active_collaboration_mask: Option<CollaborationModeMask>,
     auth_manager: Arc<AuthManager>,
     models_manager: Arc<ModelsManager>,
-    otel_manager: OtelManager,
+    session_telemetry: SessionTelemetry,
     session_header: SessionHeader,
     initial_user_message: Option<UserMessage>,
     token_info: Option<TokenUsageInfo>,
@@ -1145,7 +1145,7 @@ impl ChatWidget {
     }
 
     fn collect_runtime_metrics_delta(&mut self) {
-        if let Some(delta) = self.otel_manager.runtime_metrics_summary() {
+        if let Some(delta) = self.session_telemetry.runtime_metrics_summary() {
             self.apply_runtime_metrics_delta(delta);
         }
     }
@@ -1506,7 +1506,7 @@ impl ChatWidget {
         self.adaptive_chunking.reset();
         self.plan_stream_controller = None;
         self.turn_runtime_metrics = RuntimeMetricsSummary::default();
-        self.otel_manager.reset_runtime_metrics();
+        self.session_telemetry.reset_runtime_metrics();
         self.bottom_pane.clear_quit_shortcut_hint();
         self.quit_shortcut_expires_at = None;
         self.quit_shortcut_key = None;
@@ -3044,7 +3044,7 @@ impl ChatWidget {
             model,
             startup_tooltip_override,
             status_line_invalid_items_warned,
-            otel_manager,
+            session_telemetry,
         } = common;
         let model = model.filter(|m| !m.trim().is_empty());
         let mut config = config;
@@ -3103,7 +3103,7 @@ impl ChatWidget {
             active_collaboration_mask,
             auth_manager,
             models_manager,
-            otel_manager,
+            session_telemetry,
             session_header: SessionHeader::new(header_model),
             initial_user_message,
             token_info: None,
@@ -3227,7 +3227,7 @@ impl ChatWidget {
             model,
             startup_tooltip_override,
             status_line_invalid_items_warned,
-            otel_manager,
+            session_telemetry,
         } = common;
         let model = model.filter(|m| !m.trim().is_empty());
         let mut config = config;
@@ -3285,7 +3285,7 @@ impl ChatWidget {
             active_collaboration_mask,
             auth_manager,
             models_manager,
-            otel_manager,
+            session_telemetry,
             session_header: SessionHeader::new(header_model),
             initial_user_message,
             token_info: None,
@@ -3401,7 +3401,7 @@ impl ChatWidget {
             model,
             startup_tooltip_override: _,
             status_line_invalid_items_warned,
-            otel_manager,
+            session_telemetry,
         } = common;
         let model = model.filter(|m| !m.trim().is_empty());
         let prevent_idle_sleep = config.features.enabled(Feature::PreventIdleSleep);
@@ -3459,7 +3459,7 @@ impl ChatWidget {
             active_collaboration_mask,
             auth_manager,
             models_manager,
-            otel_manager,
+            session_telemetry,
             session_header: SessionHeader::new(header_model),
             initial_user_message,
             token_info: None,
@@ -3840,7 +3840,8 @@ impl ChatWidget {
                 self.open_review_popup();
             }
             SlashCommand::Rename => {
-                self.otel_manager.counter("codex.thread.rename", 1, &[]);
+                self.session_telemetry
+                    .counter("codex.thread.rename", 1, &[]);
                 self.show_rename_prompt();
             }
             SlashCommand::Model => {
@@ -3942,7 +3943,7 @@ impl ChatWidget {
                         return;
                     }
 
-                    self.otel_manager.counter(
+                    self.session_telemetry.counter(
                         "codex.windows_sandbox.setup_elevated_sandbox_command",
                         1,
                         &[],
@@ -3952,7 +3953,7 @@ impl ChatWidget {
                 }
                 #[cfg(not(target_os = "windows"))]
                 {
-                    let _ = &self.otel_manager;
+                    let _ = &self.session_telemetry;
                     // Not supported; on non-Windows this command should never be reachable.
                 };
             }
@@ -4156,7 +4157,8 @@ impl ChatWidget {
                 }
             }
             SlashCommand::Rename if !trimmed.is_empty() => {
-                self.otel_manager.counter("codex.thread.rename", 1, &[]);
+                self.session_telemetry
+                    .counter("codex.thread.rename", 1, &[]);
                 let Some((prepared_args, _prepared_elements)) =
                     self.bottom_pane.prepare_inline_args_submission(false)
                 else {
@@ -6929,7 +6931,7 @@ impl ChatWidget {
             return;
         }
 
-        self.otel_manager
+        self.session_telemetry
             .counter("codex.windows_sandbox.elevated_prompt_shown", 1, &[]);
 
         let mut header = ColumnRenderable::new();
@@ -6940,10 +6942,10 @@ impl ChatWidget {
             .wrap(Wrap { trim: false }),
         ));
 
-        let accept_otel = self.otel_manager.clone();
-        let legacy_otel = self.otel_manager.clone();
+        let accept_otel = self.session_telemetry.clone();
+        let legacy_otel = self.session_telemetry.clone();
         let legacy_preset = preset.clone();
-        let quit_otel = self.otel_manager.clone();
+        let quit_otel = self.session_telemetry.clone();
         let items = vec![
             SelectionItem {
                 name: "Set up default sandbox (requires Administrator permissions)".to_string(),
@@ -7014,13 +7016,13 @@ impl ChatWidget {
 
         let elevated_preset = preset.clone();
         let legacy_preset = preset;
-        let quit_otel = self.otel_manager.clone();
+        let quit_otel = self.session_telemetry.clone();
         let items = vec![
             SelectionItem {
                 name: "Try setting up admin sandbox again".to_string(),
                 description: None,
                 actions: vec![Box::new({
-                    let otel = self.otel_manager.clone();
+                    let otel = self.session_telemetry.clone();
                     let preset = elevated_preset;
                     move |tx| {
                         otel.counter("codex.windows_sandbox.fallback_retry_elevated", 1, &[]);
@@ -7036,7 +7038,7 @@ impl ChatWidget {
                 name: "Use Codex with non-admin sandbox".to_string(),
                 description: None,
                 actions: vec![Box::new({
-                    let otel = self.otel_manager.clone();
+                    let otel = self.session_telemetry.clone();
                     let preset = legacy_preset;
                     move |tx| {
                         otel.counter("codex.windows_sandbox.fallback_use_legacy", 1, &[]);
diff --git a/codex-rs/tui/src/chatwidget/tests.rs b/codex-rs/tui/src/chatwidget/tests.rs
index ddcd015c6..a9819fb18 100644
--- a/codex-rs/tui/src/chatwidget/tests.rs
+++ b/codex-rs/tui/src/chatwidget/tests.rs
@@ -32,8 +32,8 @@ use codex_core::models_manager::collaboration_mode_presets::CollaborationModesCo
 use codex_core::models_manager::manager::ModelsManager;
 use codex_core::skills::model::SkillMetadata;
 use codex_core::terminal::TerminalName;
-use codex_otel::OtelManager;
 use codex_otel::RuntimeMetricsSummary;
+use codex_otel::SessionTelemetry;
 use codex_protocol::ThreadId;
 use codex_protocol::account::PlanType;
 use codex_protocol::config_types::CollaborationMode;
@@ -1669,7 +1669,7 @@ async fn helpers_are_available_and_do_not_panic() {
     let tx = AppEventSender::new(tx_raw);
     let cfg = test_config().await;
     let resolved_model = codex_core::test_support::get_model_offline(cfg.model.as_deref());
-    let otel_manager = test_otel_manager(&cfg, resolved_model.as_str());
+    let session_telemetry = test_session_telemetry(&cfg, resolved_model.as_str());
     let thread_manager = Arc::new(
         codex_core::test_support::thread_manager_with_models_provider(
             CodexAuth::from_api_key("test"),
@@ -1692,16 +1692,16 @@ async fn helpers_are_available_and_do_not_panic() {
         model: Some(resolved_model),
         startup_tooltip_override: None,
         status_line_invalid_items_warned: Arc::new(AtomicBool::new(false)),
-        otel_manager,
+        session_telemetry,
     };
     let mut w = ChatWidget::new(init, thread_manager);
     // Basic construction sanity.
     let _ = &mut w;
 }
 
-fn test_otel_manager(config: &Config, model: &str) -> OtelManager {
+fn test_session_telemetry(config: &Config, model: &str) -> SessionTelemetry {
     let model_info = codex_core::test_support::construct_model_info_offline(model, config);
-    OtelManager::new(
+    SessionTelemetry::new(
         ThreadId::new(),
         model,
         model_info.slug.as_str(),
@@ -1734,7 +1734,7 @@ async fn make_chatwidget_manual(
         cfg.model = Some(model.to_string());
     }
     let prevent_idle_sleep = cfg.features.enabled(Feature::PreventIdleSleep);
-    let otel_manager = test_otel_manager(&cfg, resolved_model.as_str());
+    let session_telemetry = test_session_telemetry(&cfg, resolved_model.as_str());
     let mut bottom = BottomPane::new(BottomPaneParams {
         app_event_tx: app_event_tx.clone(),
         frame_requester: FrameRequester::test_dummy(),
@@ -1777,7 +1777,7 @@ async fn make_chatwidget_manual(
         active_collaboration_mask,
         auth_manager,
         models_manager,
-        otel_manager,
+        session_telemetry,
         session_header: SessionHeader::new(resolved_model.clone()),
         initial_user_message: None,
         token_info: None,
@@ -5359,7 +5359,7 @@ async fn collaboration_modes_defaults_to_code_on_startup() {
         .await
         .expect("config");
     let resolved_model = codex_core::test_support::get_model_offline(cfg.model.as_deref());
-    let otel_manager = test_otel_manager(&cfg, resolved_model.as_str());
+    let session_telemetry = test_session_telemetry(&cfg, resolved_model.as_str());
     let thread_manager = Arc::new(
         codex_core::test_support::thread_manager_with_models_provider(
             CodexAuth::from_api_key("test"),
@@ -5382,7 +5382,7 @@ async fn collaboration_modes_defaults_to_code_on_startup() {
         model: Some(resolved_model.clone()),
         startup_tooltip_override: None,
         status_line_invalid_items_warned: Arc::new(AtomicBool::new(false)),
-        otel_manager,
+        session_telemetry,
     };
 
     let chat = ChatWidget::new(init, thread_manager);
@@ -5409,7 +5409,7 @@ async fn experimental_mode_plan_is_ignored_on_startup() {
         .await
         .expect("config");
     let resolved_model = codex_core::test_support::get_model_offline(cfg.model.as_deref());
-    let otel_manager = test_otel_manager(&cfg, resolved_model.as_str());
+    let session_telemetry = test_session_telemetry(&cfg, resolved_model.as_str());
     let thread_manager = Arc::new(
         codex_core::test_support::thread_manager_with_models_provider(
             CodexAuth::from_api_key("test"),
@@ -5432,7 +5432,7 @@ async fn experimental_mode_plan_is_ignored_on_startup() {
         model: Some(resolved_model.clone()),
         startup_tooltip_override: None,
         status_line_invalid_items_warned: Arc::new(AtomicBool::new(false)),
-        otel_manager,
+        session_telemetry,
     };
 
     let chat = ChatWidget::new(init, thread_manager);