diff --git a/codex-rs/core/tests/suite/network_approval.rs b/codex-rs/core/tests/suite/network_approval.rs
index 95fec8a8a2..c98a511f46 100644
--- a/codex-rs/core/tests/suite/network_approval.rs
+++ b/codex-rs/core/tests/suite/network_approval.rs
@@ -2183,31 +2183,75 @@ async fn guardian_receives_exact_trigger_for_single_network_request() -> Result<
     let server = start_mock_server().await;
     let test = managed_network_unified_exec_test(&server).await?;
     let command = "python3 -c \"import urllib.request; opener = urllib.request.build_opener(urllib.request.ProxyHandler()); print('OK:' + opener.open('http://1.1.1.1', timeout=10).read().decode(errors='replace'))\"".to_string();
-    let responses = mount_sse_sequence(
+    let call_id = "exec-network-single";
+    mount_sse_once_match(
         &server,
-        vec![
-            sse(vec![
-                ev_response_created("resp-network-single"),
-                ev_function_call(
-                    "exec-network-single",
-                    "exec_command",
-                    &serde_json::to_string(&network_exec_args(&command))?,
-                ),
-                ev_completed("resp-network-single"),
-            ]),
-            sse(vec![
-                ev_response_created("resp-network-guardian"),
-                ev_assistant_message("msg-network-guardian", r#"{"outcome":"deny"}"#),
-                ev_completed("resp-network-guardian"),
-            ]),
-            sse(vec![
-                ev_response_created("resp-network-done"),
-                ev_assistant_message("msg-network-done", "done"),
-                ev_completed("resp-network-done"),
-            ]),
-        ],
+        move |request: &wiremock::Request| {
+            !is_guardian_request(request) && !request_body_contains(request, call_id)
+        },
+        sse(vec![
+            ev_response_created("resp-network-single"),
+            ev_function_call(
+                call_id,
+                "exec_command",
+                &serde_json::to_string(&network_exec_args(&command))?,
+            ),
+            ev_completed("resp-network-single"),
+        ]),
     )
     .await;
+    let guardian = mount_sse_once_match(
+        &server,
+        is_guardian_request,
+        sse(vec![
+            ev_response_created("resp-network-guardian"),
+            ev_assistant_message("msg-network-guardian", r#"{"outcome":"deny"}"#),
+            ev_completed("resp-network-guardian"),
+        ]),
+    )
+    .await;
+
+    // The command can yield before its network request reaches Guardian. Keep the
+    // parent on that process until it exits, without consuming Guardian's reply.
+    let _parent = wiremock::Mock::given(wiremock::matchers::method("POST"))
+        .and(wiremock::matchers::path("/v1/responses"))
+        .and(move |request: &wiremock::Request| {
+            !is_guardian_request(request) && request_body_contains(request, call_id)
+        })
+        .respond_with(move |request: &wiremock::Request| {
+            let body: Value = serde_json::from_slice(
+                &decoded_request_body(request).expect("decode parent request"),
+            )
+            .expect("parse parent request");
+            let input = body["input"].as_array().expect("parent input");
+            let output = input
+                .iter()
+                .rev()
+                .find(|item| item["type"] == "function_call_output")
+                .and_then(|item| item["output"].as_str())
+                .expect("network command or poll output");
+            let response_id = format!("{call_id}-{}", input.len());
+            let event = if let Some(session_id) = output
+                .lines()
+                .find_map(|line| line.strip_prefix("Process running with session ID "))
+            {
+                ev_function_call(
+                    &response_id,
+                    "write_stdin",
+                    &json!({
+                        "session_id": session_id.parse::<i32>().expect("session id"),
+                        "chars": "",
+                        "yield_time_ms": 1_000,
+                    })
+                    .to_string(),
+                )
+            } else {
+                ev_assistant_message(&response_id, "done")
+            };
+            sse_response(sse(vec![event, ev_completed(&response_id)]))
+        })
+        .mount_as_scoped(&server)
+        .await;
 
     submit_managed_network_turn(
         &test,
@@ -2217,11 +2261,13 @@ async fn guardian_receives_exact_trigger_for_single_network_request() -> Result<
         AskForApproval::OnRequest,
     )
     .await?;
-    wait_for_turn_complete(&test).await;
+    tokio::time::timeout(Duration::from_secs(30), wait_for_turn_complete(&test))
+        .await
+        .context("timed out waiting for the network process and Guardian review to finish")?;
 
     assert_eq!(
-        guardian_network_triggers(&[&responses])?,
-        vec![("exec-network-single".to_string(), command)]
+        guardian_network_triggers(&[&guardian])?,
+        vec![(call_id.to_string(), command)]
     );
 
     Ok(())