diff --git a/apps/ai-game-creator-shell/src-tauri/tests/runtime_prompt_bundle_build.rs b/apps/ai-game-creator-shell/src-tauri/tests/runtime_prompt_bundle_build.rs
index 25024491f..28d5a71bc 100644
--- a/apps/ai-game-creator-shell/src-tauri/tests/runtime_prompt_bundle_build.rs
+++ b/apps/ai-game-creator-shell/src-tauri/tests/runtime_prompt_bundle_build.rs
@@ -28,10 +28,6 @@ const SECTION_FILES: &[(&str, &str)] = &[
     ("supervisorPlaybook", "supervisor/playbook.md"),
     ("supervisorClaimGate", "supervisor/claim-gate.md"),
     ("supervisorRepair", "supervisor/repair.md"),
-    ("planCommon", "plan/common.md"),
-    ("planSupervisorIdentity", "plan/supervisor-identity.md"),
-    ("planSupervisorPlaybook", "plan/supervisor-playbook.md"),
-    ("projectPlanningRoleBrief", "roles/project-planning.md"),
     (
         "providerIsolatedToolContract",
         "provider/isolated-tool-contract.md",
@@ -144,14 +140,6 @@ fn valid_manifest() -> Value {
                 "supervisorClaimGate",
                 "supervisorRepair"
             ],
-            "supervisorPlan": [
-                "$header",
-                "planCommon",
-                "isolatedAgentContract",
-                "planSupervisorIdentity",
-                "planSupervisorPlaybook",
-                "supervisorRepair"
-            ],
             "supervisorChat": {
                 "identity": "supervisorIdentityContract",
                 "finalReply": "supervisorFinalReplyContract"
@@ -167,12 +155,7 @@ fn valid_manifest() -> Value {
                 "editorUnavailable": "supervisorVisualWithoutEditor"
             }
         },
-        "roleOverlays": [
-            {
-                "agentId": "project-planning",
-                "sections": ["projectPlanningRoleBrief"]
-            }
-        ],
+        "roleOverlays": [],
         "providerFragments": {
             "isolatedToolContract": "providerIsolatedToolContract",
             "autonomousRunProfile": "providerAutonomousRunProfile",
@@ -199,21 +182,6 @@ fn valid_manifest() -> Value {
                     }
                 ]
             },
-            "planning": {
-                "id": "planning",
-                "label": "立项策划",
-                "role": "Project Planning",
-                "briefPathName": "project-planning.md",
-                "roles": [
-                    {
-                        "id": "project-planning",
-                        "role": "Project Planning",
-                        "taskId": "project-planning",
-                        "toolId": "agent.runtime.project-planning",
-                        "briefPathName": "project-planning.md"
-                    }
-                ]
-            },
             "groups": [
                 {
                     "id": "code",
@@ -622,34 +590,73 @@ fn rejects_unused_registered_and_unregistered_markdown_sections() {
         .contains("未登记的 Markdown section"));
 }
 
+// 基础 fixture 不携带 overlay（与生产 manifest 一致）；本测试自带一份合法 overlay，
+// 再逐项破坏它。overlay section 必须先落盘成普通文件——编译器先读完全部 section
+// 文件才做语义校验。
+fn overlay_fixture() -> Fixture {
+    let mut fixture = Fixture::new();
+    fs::create_dir_all(fixture.root().join("roles")).expect("create roles directory");
+    fs::write(
+        fixture.root().join("roles/code-director-brief.md"),
+        "SECTION:codeDirectorRoleBrief\n",
+    )
+    .expect("write overlay section");
+    fixture.manifest["sections"]["codeDirectorRoleBrief"] =
+        json!("roles/code-director-brief.md");
+    fixture.manifest["roleOverlays"] = json!([{
+        "agentId": "code-director",
+        "sections": ["codeDirectorRoleBrief"]
+    }]);
+    fixture.write_manifest();
+    fixture
+}
+
+fn compile_overlay_after(mutator: impl FnOnce(&mut Value)) -> Result<(), String> {
+    let mut fixture = overlay_fixture();
+    mutator(&mut fixture.manifest);
+    fixture.write_manifest();
+    fixture.compile().map(|_| ())
+}
+
+fn assert_overlay_compile_error(mutator: impl FnOnce(&mut Value), expected: &str) {
+    let error = compile_overlay_after(mutator).expect_err("manifest must fail closed");
+    assert!(
+        error.contains(expected),
+        "expected error containing {expected:?}, got {error:?}"
+    );
+}
+
 #[test]
 fn rejects_invalid_role_overlays() {
-    assert_compile_error(
+    overlay_fixture()
+        .compile()
+        .expect("valid overlay manifest must compile");
+    assert_overlay_compile_error(
         |manifest| manifest["roleOverlays"][0]["agentId"] = json!("unknown-agent"),
         "未知 agentId",
     );
-    assert_compile_error(
+    assert_overlay_compile_error(
         |manifest| manifest["roleOverlays"][0]["sections"] = json!([]),
         "sections 不能为空",
     );
-    assert_compile_error(
+    assert_overlay_compile_error(
         |manifest| manifest["roleOverlays"][0]["sections"] = json!(["missingSection"]),
         "未知 section",
     );
-    assert_compile_error(
+    assert_overlay_compile_error(
         |manifest| {
             manifest["roleOverlays"][0]["sections"] = json!(["supervisorClaimGate"]);
         },
         "Prompt section 跨语义所有者复用：supervisorClaimGate",
     );
-    assert_compile_error(
+    assert_overlay_compile_error(
         |manifest| {
             manifest["roleOverlays"][0]["sections"] =
-                json!(["projectPlanningRoleBrief", "projectPlanningRoleBrief"]);
+                json!(["codeDirectorRoleBrief", "codeDirectorRoleBrief"]);
         },
         "重复 section",
     );
-    assert_compile_error(
+    assert_overlay_compile_error(
         |manifest| {
             let overlay = manifest["roleOverlays"][0].clone();
             manifest["roleOverlays"] = json!([overlay.clone(), overlay]);