diff --git a/apps/ai-game-creator-shell/src-tauri/src/tests/project_tools.rs b/apps/ai-game-creator-shell/src-tauri/src/tests/project_tools.rs
index 9835bbeed..765222225 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/tests/project_tools.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/tests/project_tools.rs
@@ -2765,18 +2765,18 @@ async fn background_agent_runtime_can_create_checkpoint_before_file_write() {
     .expect("start background task");
 
     let plan_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("plan llm request");
     assert!(plan_request.contains("project.checkpoint"));
     assert!(plan_request.contains("file.write"));
     let final_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("final reply llm request");
     assert!(final_request.contains("project.checkpoint"));
     assert!(final_request.contains("已创建 checkpoint checkpoint-"));
     assert!(final_request.contains("file.write"));
     let verified_final_request = receiver
-        .recv_timeout(Duration::from_secs(10))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("final request after checkpoint write verification");
     assert!(verified_final_request.contains("project.verify"));
     assert!(verified_final_request.contains("AGENT_RUNTIME_CURRENT_REVISION_OK"));
diff --git a/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/action_execution.rs b/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/action_execution.rs
index 780f589d6..765402ad8 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/action_execution.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/action_execution.rs
@@ -721,12 +721,12 @@ async fn background_agent_runtime_can_schedule_ready_manifest_tasks() {
         .contains("处理 manifest ready 任务：拆解创作方向"));
 
     let plan_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("plan llm request");
     assert!(plan_request.contains("处理 manifest ready 任务：拆解创作方向"));
     assert!(plan_request.contains("task.update"));
     let final_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("final reply llm request");
     assert!(final_request.contains("任务 design-director 已更新为 completed"));
 
diff --git a/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/planning_strategy/tool_planning.rs b/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/planning_strategy/tool_planning.rs
index e418ff190..e7ec98340 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/planning_strategy/tool_planning.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/planning_strategy/tool_planning.rs
@@ -904,11 +904,11 @@ async fn background_agent_runtime_loads_same_agent_continuity_through_tool_obser
     )
     .expect("start first design task");
     let first_plan_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("first design plan request");
     assert!(first_plan_request.contains("首轮检查连续上下文"));
     let first_replan_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("first design replan request");
     assert!(first_replan_request.contains("连续上下文笔记：第一轮已经确认月光厨房核心循环"));
     let first_runtime = wait_for_agent_runtime_idle(&root, "design-director");
@@ -930,7 +930,7 @@ async fn background_agent_runtime_loads_same_agent_continuity_through_tool_obser
     )
     .expect("start art task");
     let art_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("art plan request");
     assert!(art_request.contains("美术无关任务"));
     assert!(!art_request.contains("design-continuity-first"));
@@ -947,7 +947,7 @@ async fn background_agent_runtime_loads_same_agent_continuity_through_tool_obser
     )
     .expect("start second design task");
     let second_design_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("second design plan request");
     assert!(second_design_request.contains("模板 taskId=design-director"));
     assert!(!second_design_request.contains("contextBoundary:"));
@@ -958,7 +958,7 @@ async fn background_agent_runtime_loads_same_agent_continuity_through_tool_obser
     assert!(!second_design_request.contains("连续上下文笔记：第一轮已经确认月光厨房核心循环"));
     assert!(!second_design_request.contains("design-continuity-first [completed / completed]"));
     let second_design_replan_request = receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("second design replan request after runtime observation");
     assert!(second_design_replan_request.contains("agent.run_status"));
     assert!(second_design_replan_request.contains("conversation.read"));
diff --git a/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/support.rs b/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/support.rs
index 6e0b772d8..1b6e5dbaa 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/support.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/support.rs
@@ -3,7 +3,7 @@ pub(super) use std::{
     fs,
     path::Path,
     sync::{mpsc, Arc, Condvar, Mutex as StdMutex},
-    time::Duration,
+    time::{Duration, Instant},
 };
 
 pub(super) use serde_json::Value;
@@ -28,6 +28,7 @@ pub(super) use super::super::{
     wait_for_agent_runtime_terminal_and_lane_release, wait_for_captured_mock_request,
     write_agent_runtime_task_record_for_test, write_agent_runtime_verification_fixture,
     write_static_smoke_game_fixture_for_test, write_test_local_config,
+    AGENT_RUNTIME_TERMINAL_WAIT_BUDGET, MOCK_PROVIDER_REQUEST_TIMEOUT,
 };
 
 pub(super) use crate::{
diff --git a/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/task_lifecycle.rs b/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/task_lifecycle.rs
index 09cf300b6..766d0fe5a 100644
--- a/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/task_lifecycle.rs
+++ b/apps/ai-game-creator-shell/src-tauri/src/tests/runtime_actions/task_lifecycle.rs
@@ -177,7 +177,7 @@ async fn background_agent_runtime_can_cancel_active_task_and_retry_it() {
     )
     .expect("start active task");
     let first_request = request_receiver
-        .recv_timeout(Duration::from_secs(2))
+        .recv_timeout(MOCK_PROVIDER_REQUEST_TIMEOUT)
         .expect("first request");
     assert!(first_request.contains("需要取消后重试的后台任务"));
 
@@ -202,7 +202,10 @@ async fn background_agent_runtime_can_cancel_active_task_and_retry_it() {
         .expect("release first request");
     let mut cancelled_result =
         read_game_creator_agent_runtime_at(&root, "design-director").expect("read cancelled");
-    for _ in 0..50 {
+    // 取消收口同样要等后台 worker 真正停稳；CI 上分片并发放大会把它拖过 1 秒，
+    // 因此改用与其它终态等待一致的硬预算，而不是固定 50 × 20ms。
+    let cancel_deadline = Instant::now() + AGENT_RUNTIME_TERMINAL_WAIT_BUDGET;
+    while Instant::now() < cancel_deadline {
         if game_creator_agent_runtime_task_lock_is_available(&root, "design-director")
             .expect("inspect cancelled runtime lock")
             && cancelled_result.state.status == "cancelled"