diff --git a/platform/api/resource_handlers_test.go b/platform/api/resource_handlers_test.go
index 47304c2..c3afe37 100644
--- a/platform/api/resource_handlers_test.go
+++ b/platform/api/resource_handlers_test.go
@@ -259,14 +259,14 @@ func TestCoreAPIServerFileWorkspaceRoutesAreScoped(t *testing.T) {
 	putJSONWithAuth[dto.RuntimeBindingResponse](t, router, "/api/v1/server-instances/"+instance.ID+"/runtime-binding", dto.RuntimeBindingUpdateRequest{ProfileKey: "local", Bindings: map[string]string{}}, adminSession)
 
 	workspace := getJSONWithAuth[dto.ServerFileWorkspaceResponse](t, router, "/api/v1/server-instances/"+instance.ID+"/files/workspace", adminSession)
-	if workspace.DefaultDirectoryKey != "server-root" || workspace.Transfer.Channel != "run-file-transfer" || workspace.DeclaredOnly || len(workspace.Directories) != 1 || workspace.Directories[0].Label != "服务器根目录" || len(workspace.Files) != 0 {
+	if workspace.DefaultDirectoryKey != "scum-config" || workspace.Transfer.Channel != "run-file-transfer" || workspace.DeclaredOnly || len(workspace.Directories) != 2 || workspace.Directories[0].Label != "服务器配置" || len(workspace.Files) != 2 {
 		t.Fatalf("unexpected workspace: %+v", workspace)
 	}
-	list := getJSONWithAuth[dto.ServerFileListResponse](t, router, "/api/v1/server-instances/"+instance.ID+"/files/list?directoryKey=server-root", adminSession)
-	if list.State != "declared" || list.DirectoryKey != "server-root" || list.Entries == nil || !strings.Contains(list.Reason, "服务器文件缓存") {
-		t.Fatalf("expected generic root file list, got %+v", list)
+	list := getJSONWithAuth[dto.ServerFileListResponse](t, router, "/api/v1/server-instances/"+instance.ID+"/files/list?directoryKey=scum-config", adminSession)
+	if list.State != "declared" || list.DirectoryKey != "scum-config" || len(list.Entries) != 2 || list.Entries[1].Name != "ServerSettings.ini" || !strings.Contains(list.Reason, "服务器文件缓存") {
+		t.Fatalf("expected declared SCUM file list, got %+v", list)
 	}
-	refreshRecorder := requestJSONWithAuth(t, router, http.MethodPost, "/api/v1/server-instances/"+instance.ID+"/files/refresh", dto.ServerFileListRequest{DirectoryKey: "server-root", IdempotencyKey: "api-file-list-refresh"}, adminSession)
+	refreshRecorder := requestJSONWithAuth(t, router, http.MethodPost, "/api/v1/server-instances/"+instance.ID+"/files/refresh", dto.ServerFileListRequest{DirectoryKey: "scum-config", IdempotencyKey: "api-file-list-refresh"}, adminSession)
 	assertStatus(t, refreshRecorder, http.StatusAccepted)
 	refresh := decodeBody[dto.ServerFileListResponse](t, refreshRecorder)
 	if refresh.State != "pending" || refresh.Job == nil || refresh.Job.Capability != domain.JobCapabilityFilesList {
diff --git a/platform/service/resources_test.go b/platform/service/resources_test.go
index aa1ed82..704d14c 100644
--- a/platform/service/resources_test.go
+++ b/platform/service/resources_test.go
@@ -973,6 +973,10 @@ func TestPluginFileWorkspaceDoesNotConstrainServerFileDispatch(t *testing.T) {
 func TestServerFileListReportsFailedRuntimeRefresh(t *testing.T) {
 	svc := newTestCoreService()
 	plugin, endpoint := createPluginAndRunEndpoint(t, svc)
+	endpoint.Capabilities = append(endpoint.Capabilities, domain.JobCapabilityFilesList)
+	if err := svc.store.RunEndpoints().Update(endpoint); err != nil {
+		t.Fatalf("update file list capability: %v", err)
+	}
 	ownerSession := createServiceUserAndLogin(t, svc, domain.User{ID: "user-file-list-failure", DisplayName: "File List Failure", Email: "file-list-failure@example.test", Roles: []string{"server-owner"}, PasswordHash: "secret-password"})
 	instance, err := svc.CreateServerInstanceForSession(ownerSession, domain.ServerInstance{ID: "server-file-list-failure", PluginID: plugin.ID, RunEndpointID: endpoint.ID, Name: "File List Failure Server", State: domain.ServerInstanceStateRunning})
 	if err != nil {
@@ -999,6 +1003,36 @@ func TestServerFileListReportsFailedRuntimeRefresh(t *testing.T) {
 	}
 }
 
+func TestServerFileListFallsBackToPluginWorkspaceWithoutRunListCapability(t *testing.T) {
+	svc := newTestCoreService()
+	plugin, endpoint := createPluginAndRunEndpoint(t, svc)
+	plugin.FileWorkspace = scumTestFileWorkspace()
+	if err := svc.store.GamePlugins().Update(plugin); err != nil {
+		t.Fatalf("update plugin workspace: %v", err)
+	}
+	ownerSession := createServiceUserAndLogin(t, svc, domain.User{ID: "user-file-list-fallback", DisplayName: "File List Fallback", Email: "file-list-fallback@example.test", Roles: []string{"server-owner"}, PasswordHash: "secret-password"})
+	instance, err := svc.CreateServerInstanceForSession(ownerSession, domain.ServerInstance{ID: "server-file-list-fallback", PluginID: plugin.ID, RunEndpointID: endpoint.ID, Name: "File List Fallback Server", State: domain.ServerInstanceStateRunning})
+	if err != nil {
+		t.Fatalf("create server: %v", err)
+	}
+	createCompleteRuntimeBinding(t, svc, instance, "local")
+
+	refresh, err := svc.RefreshServerFileListForSession(ownerSession, domain.ServerFileListRequest{ServerInstanceID: instance.ID, DirectoryKey: "scum-config", IdempotencyKey: "idem-file-list-fallback"})
+	if err != nil {
+		t.Fatalf("refresh file list fallback: %v", err)
+	}
+	if refresh.State != "ready" || refresh.Job.ID != "" || len(refresh.Entries) != 2 || refresh.Entries[1].LogicalKey != "scum-server-settings" || !strings.Contains(refresh.Reason, "未声明 files.list") {
+		t.Fatalf("expected plugin workspace fallback, got %+v", refresh)
+	}
+	jobs, err := svc.store.Jobs().List(domain.JobFilter{ServerInstanceID: instance.ID})
+	if err != nil {
+		t.Fatalf("list fallback jobs: %v", err)
+	}
+	if len(jobs) != 0 {
+		t.Fatalf("unsupported Run capability must not create a failed refresh job, got %+v", jobs)
+	}
+}
+
 func TestDeclaredFileReadSnapshotProjectionStatesAndRedaction(t *testing.T) {
 	svc := newTestCoreService()
 	plugin, endpoint := createPluginAndRunEndpoint(t, svc)
diff --git a/platform/service/server_files.go b/platform/service/server_files.go
index 8d6534a..c81bd61 100644
--- a/platform/service/server_files.go
+++ b/platform/service/server_files.go
@@ -150,6 +150,22 @@ func (svc *CoreService) RefreshServerFileListForSession(sessionID string, reques
 	if err != nil {
 		return domain.ServerFileListResult{}, err
 	}
+	endpoint, err := svc.GetRunEndpoint(ctx.Instance.RunEndpointID)
+	if err != nil {
+		return domain.ServerFileListResult{}, err
+	}
+	entries := filterServerFileEntries(serverFileEntriesFromDeclaredWorkspace(ctx.Workspace, request.DirectoryKey), request.Query)
+	if !containsString(endpoint.Capabilities, domain.JobCapabilityFilesList) {
+		return domain.CopyServerFileListResult(domain.ServerFileListResult{
+			ServerInstanceID: ctx.Instance.ID,
+			PluginID:         ctx.Plugin.ID,
+			DirectoryKey:     request.DirectoryKey,
+			Path:             request.Path,
+			State:            "ready",
+			Entries:          entries,
+			Reason:           "当前 Run 未声明 files.list，已展示插件声明的逻辑文件。",
+		}), nil
+	}
 	job, err := svc.CreateJob(domain.Job{
 		ID:               jobIDFromParts("job-file-list", request.ServerInstanceID, request.IdempotencyKey),
 		ServerInstanceID: ctx.Instance.ID,
@@ -169,7 +185,6 @@ func (svc *CoreService) RefreshServerFileListForSession(sessionID string, reques
 	if err != nil {
 		return domain.ServerFileListResult{}, err
 	}
-	entries := filterServerFileEntries(serverFileEntriesFromDeclaredWorkspace(ctx.Workspace, request.DirectoryKey), request.Query)
 	return domain.CopyServerFileListResult(domain.ServerFileListResult{ServerInstanceID: ctx.Instance.ID, PluginID: ctx.Plugin.ID, DirectoryKey: request.DirectoryKey, Path: request.Path, State: "pending", Entries: entries, Job: job, Reason: "目录刷新任务已派发到 Run。"}), nil
 }
 
@@ -365,7 +380,14 @@ func (svc *CoreService) serverFileContextForSession(sessionID string, serverInst
 	return serverFileContext{User: user, Instance: instance, Plugin: plugin, Directory: directory, Workspace: workspace, Scope: svc.runtimeProfileScope(instance.ID)}, nil
 }
 
-func effectiveServerFileWorkspace(_ domain.GamePlugin) domain.PluginFileWorkspace {
+func effectiveServerFileWorkspace(plugin domain.GamePlugin) domain.PluginFileWorkspace {
+	workspace := domain.CopyPluginFileWorkspace(plugin.FileWorkspace)
+	if serverFileWorkspaceIsPluginDeclared(workspace) {
+		if workspace.DefaultDirectoryKey == "" && len(workspace.Directories) > 0 {
+			workspace.DefaultDirectoryKey = workspace.Directories[0].Key
+		}
+		return workspace
+	}
 	return domain.PluginFileWorkspace{DefaultDirectoryKey: serverFileDefaultDirectoryKey, Directories: []domain.PluginLogicalDirectory{{Key: serverFileDefaultDirectoryKey, Label: "服务器根目录", Scope: "config"}}, Files: []domain.PluginLogicalFile{}, ConfigFields: []domain.PluginConfigField{}}
 }