From f72c50dcebf0cda757c4948cc38f5d13d8747d95 Mon Sep 17 00:00:00 2001
From: Qiu Yuzhou <qiuyuzhou@gmail.com>
Date: Sun, 11 Oct 2026 23:58:47 +0800
Subject: [PATCH] feat(plugins): configure plugin transport mode

---
 GLOSSARY.md                                   |  7 +-
 .../PluginManagementModel.swift               | 21 +++--
 .../App/Resources/Localizable.xcstrings       | 33 ++++++++
 .../UI/Servers/Plugin/PluginEditorSheet.swift | 20 ++++-
 .../Plugin/PluginManagementSection.swift      |  9 +--
 .../Activation/ActivationStateMachine.swift   |  4 +-
 .../Plugin/ManagedPluginProviding.swift       |  5 +-
 .../Domain/Plugin/PluginCatalog.swift         | 10 +++
 .../Domain/Plugin/PluginCatalogSnapshot.swift |  7 +-
 .../Plugin/PluginMappingFileStore.swift       | 53 +++++++++++++
 .../Domain/Plugin/PluginTransportMode.swift   |  4 +
 .../Runtime/SslocalRuntimeDocument.swift      |  2 +
 ShadowsocksX-NG2/README.md                    |  4 +-
 .../Tests/Plugin/PluginManagementTests.swift  | 41 ++++++++--
 .../Plugin/PluginMappingCommitTests.swift     | 17 +++++
 .../Tests/Plugin/PluginRecordTests.swift      | 76 ++++++++++++++++++-
 ShadowsocksX-NG2/project.yml                  |  1 +
 ...records-own-aliases-and-local-arguments.md |  8 +-
 docs/design/plugin-transport-mode.md          | 47 ++++++++++++
 19 files changed, 333 insertions(+), 36 deletions(-)
 create mode 100644 ShadowsocksX-NG2/Domain/Plugin/PluginTransportMode.swift
 create mode 100644 docs/design/plugin-transport-mode.md

diff --git a/GLOSSARY.md b/GLOSSARY.md
index 8dc79777..b04505d8 100644
--- a/GLOSSARY.md
+++ b/GLOSSARY.md
@@ -75,10 +75,13 @@ _避免用词_：可移除节点（Removable node）。
 由产品随应用发布的 SIP003 插件，其发布版本与来源事实属于随应用提供的程序，不代表用户自备的同名程序。
 
 **插件记录（Plugin record）**：
-一份可由多个名称引用的本机插件资料，包含可执行程序的选择和共享的本地启动参数；用户记录具有独立于名称的持久身份。
+一份可由多个名称引用的本机插件资料，包含可执行程序的选择、共享的本地启动参数与插件传输模式；用户记录具有独立于名称的持久身份。
+
+**插件传输模式（Plugin transport mode）**：
+一条插件记录承载的传输协议范围：`tcp_only` 表示插件仅承载 TCP，`tcp_and_udp` 表示插件承载 TCP 与 UDP。它不表示插件已经具备 SIP003u 支持，也不同于本地 SOCKS5 端点的 UDP 中继能力。
 
 **插件别名（Plugin alias）**：
-引用同一插件记录的名称之一。同一记录的名称共享程序与本地启动参数，服务器资料保留自己使用的名称。
+引用同一插件记录的名称之一。同一记录的名称共享程序、本地启动参数与插件传输模式，服务器资料保留自己使用的名称。
 
 **本地插件启动参数（Local plugin arguments）**：
 当前 macOS 用户为一条插件记录设置的有序命令行参数，由所有引用该记录的服务器共享。它与服务器连接资料中的插件选项不同，不随服务器资料分享。
diff --git a/ShadowsocksX-NG2/App/Application/CatalogWorkflow/PluginManagementModel.swift b/ShadowsocksX-NG2/App/Application/CatalogWorkflow/PluginManagementModel.swift
index 6b48b6ea..3dc44591 100644
--- a/ShadowsocksX-NG2/App/Application/CatalogWorkflow/PluginManagementModel.swift
+++ b/ShadowsocksX-NG2/App/Application/CatalogWorkflow/PluginManagementModel.swift
@@ -9,6 +9,7 @@ struct PluginEditorSession: Identifiable {
   let initialNames: [String]
   let initialPath: String
   let initialArguments: [String]
+  var initialMode: PluginTransportMode = .tcpOnly
 }
 
 struct PluginManagementRow: Identifiable {
@@ -74,7 +75,8 @@ final class PluginManagementModel: ObservableObject {
     else { return nil }
     return PluginEditorSession(
       recordID: id, managedProgram: nil, isEditing: true,
-      initialNames: record.names, initialPath: record.path, initialArguments: record.arguments)
+      initialNames: record.names, initialPath: record.path, initialArguments: record.arguments,
+      initialMode: record.mode)
   }
 
   func beginOverriding(_ program: String) -> PluginEditorSession? {
@@ -86,14 +88,15 @@ final class PluginManagementModel: ObservableObject {
       initialNames: [program], initialPath: "", initialArguments: [])
   }
 
-  func beginManagedArguments(_ program: String) -> PluginEditorSession? {
+  func beginManagedSettings(_ program: String) -> PluginEditorSession? {
     guard !snapshot.mappingsUnreadable,
       let info = ManagedPluginCatalog.plugins.first(where: { $0.program == program })
     else { return nil }
     return PluginEditorSession(
       recordID: nil, managedProgram: program, isEditing: true,
       initialNames: info.names, initialPath: "",
-      initialArguments: snapshot.managedArguments[program] ?? [])
+      initialArguments: snapshot.managedArguments[program] ?? [],
+      initialMode: snapshot.managedRecords[program]?.mode ?? .tcpOnly)
   }
 
   func namesIssue(_ names: [String], session: PluginEditorSession) -> PluginMappingError? {
@@ -110,11 +113,17 @@ final class PluginManagementModel: ObservableObject {
     path.hasPrefix("/") && !path.contains("\0") ? nil : .invalidPath
   }
 
-  func save(_ session: PluginEditorSession, names: [String], path: String, arguments: [String] = [])
+  func save(
+    _ session: PluginEditorSession, names: [String], path: String, arguments: [String] = [],
+    mode: PluginTransportMode = .tcpOnly
+  )
     throws
   {
     if let program = session.managedProgram {
-      try catalog.commit([.managedArguments(program: program, arguments: arguments)])
+      try catalog.commit([
+        .managedArguments(program: program, arguments: arguments),
+        .managedMode(program: program, mode: mode),
+      ])
     } else {
       if let issue = namesIssue(names, session: session) { throw issue }
       if let issue = pathIssue(path) { throw issue }
@@ -122,7 +131,7 @@ final class PluginManagementModel: ObservableObject {
         !session.isEditing || catalog.userRecords.contains(where: { $0.id == id })
       else { throw PluginMappingError.nameMissing }
       try catalog.commit([
-        .save(UserPluginRecord(id: id, names: names, path: path, arguments: arguments))
+        .save(UserPluginRecord(id: id, names: names, path: path, arguments: arguments, mode: mode))
       ])
     }
     refresh()
diff --git a/ShadowsocksX-NG2/App/Resources/Localizable.xcstrings b/ShadowsocksX-NG2/App/Resources/Localizable.xcstrings
index 232f1fd3..eb61aafb 100644
--- a/ShadowsocksX-NG2/App/Resources/Localizable.xcstrings
+++ b/ShadowsocksX-NG2/App/Resources/Localizable.xcstrings
@@ -1397,6 +1397,39 @@
           }
         }
       }
+    },
+    "设置": {
+      "extractionState": "manual",
+      "localizations": {
+        "en": {
+          "stringUnit": {
+            "state": "translated",
+            "value": "Settings"
+          }
+        }
+      }
+    },
+    "插件传输模式": {
+      "extractionState": "manual",
+      "localizations": {
+        "en": {
+          "stringUnit": {
+            "state": "translated",
+            "value": "Plugin Transport Mode"
+          }
+        }
+      }
+    },
+    "内置插件设置": {
+      "extractionState": "manual",
+      "localizations": {
+        "en": {
+          "stringUnit": {
+            "state": "translated",
+            "value": "Built-in Plugin Settings"
+          }
+        }
+      }
     }
   },
   "version": "1.0"
diff --git a/ShadowsocksX-NG2/App/UI/Servers/Plugin/PluginEditorSheet.swift b/ShadowsocksX-NG2/App/UI/Servers/Plugin/PluginEditorSheet.swift
index 938fd6c7..9ceb63af 100644
--- a/ShadowsocksX-NG2/App/UI/Servers/Plugin/PluginEditorSheet.swift
+++ b/ShadowsocksX-NG2/App/UI/Servers/Plugin/PluginEditorSheet.swift
@@ -13,6 +13,7 @@ struct PluginEditorSheet: View {
   /// Each presentation seeds fresh drafts; row identities survive edits and moves.
   @State private var names: [PluginTextDraft]
   @State private var arguments: [PluginTextDraft]
+  @State private var mode: PluginTransportMode
   @State private var path: String
   @State private var failure: String?
   @State private var showFilePicker = false
@@ -23,6 +24,7 @@ struct PluginEditorSheet: View {
     _names = State(initialValue: session.initialNames.map { PluginTextDraft(value: $0) })
     _arguments = State(initialValue: session.initialArguments.map { PluginTextDraft(value: $0) })
     _path = State(initialValue: session.initialPath)
+    _mode = State(initialValue: session.initialMode)
   }
 
   private var nameValues: [String] { names.map(\.value) }
@@ -60,8 +62,20 @@ struct PluginEditorSheet: View {
                 .font(.caption).foregroundStyle(.secondary)
             }
           }
+          Picker("插件传输模式", selection: $mode) {
+            ForEach(PluginTransportMode.allCases, id: \.self) { mode in
+              Text(verbatim: mode.rawValue).tag(mode)
+            }
+          }
+          .pickerStyle(.menu)
           VStack(alignment: .leading, spacing: 8) {
-            Text("本地启动参数")
+            HStack {
+              Text("本地启动参数")
+              Spacer()
+              if isManaged {
+                Button("清空参数") { arguments.removeAll() }.disabled(arguments.isEmpty)
+              }
+            }
             PluginValueList(values: $arguments, placeholder: "参数", allowsReordering: true)
             Text("每项作为一个完整参数传递，无需 shell 引号。仅在本机生效。")
               .font(.caption).foregroundStyle(.secondary)
@@ -78,7 +92,7 @@ struct PluginEditorSheet: View {
         Button("保存") {
           do {
             try model.save(
-              session, names: nameValues, path: path, arguments: arguments.map(\.value))
+              session, names: nameValues, path: path, arguments: arguments.map(\.value), mode: mode)
             dismiss()
           } catch { failure = PluginManagementCopy.error(error) }
         }
@@ -102,7 +116,7 @@ struct PluginEditorSheet: View {
   }
 
   private var title: String {
-    if isManaged { return String(localized: "内置插件启动参数") }
+    if isManaged { return String(localized: "内置插件设置") }
     return session.isEditing ? String(localized: "编辑插件") : String(localized: "新增插件")
   }
 
diff --git a/ShadowsocksX-NG2/App/UI/Servers/Plugin/PluginManagementSection.swift b/ShadowsocksX-NG2/App/UI/Servers/Plugin/PluginManagementSection.swift
index 73d3179d..d855173c 100644
--- a/ShadowsocksX-NG2/App/UI/Servers/Plugin/PluginManagementSection.swift
+++ b/ShadowsocksX-NG2/App/UI/Servers/Plugin/PluginManagementSection.swift
@@ -97,20 +97,15 @@ struct PluginManagementSection: View {
         .frame(maxWidth: .infinity, alignment: .leading)
         if let program = entry.managedProgram {
           Button {
-            editor = model.beginManagedArguments(program)
+            editor = model.beginManagedSettings(program)
           } label: {
             HStack(spacing: 8) {
-              Text("启动参数")
+              Text("设置")
               Image(systemName: "chevron.right")
                 .font(.caption.weight(.semibold))
             }
           }
           .buttonStyle(.bordered)
-          Button("清空参数") {
-            do { try model.clearManagedArguments(program) } catch {
-              failure = PluginManagementCopy.error(error)
-            }
-          }.disabled(model.snapshot.managedArguments[program] == nil)
           Menu("覆盖名称") {
             ForEach(entry.names, id: \.self) { name in
               Button(name) { editor = model.beginOverriding(name) }
diff --git a/ShadowsocksX-NG2/Domain/Activation/ActivationStateMachine.swift b/ShadowsocksX-NG2/Domain/Activation/ActivationStateMachine.swift
index e21d299a..89388eef 100644
--- a/ShadowsocksX-NG2/Domain/Activation/ActivationStateMachine.swift
+++ b/ShadowsocksX-NG2/Domain/Activation/ActivationStateMachine.swift
@@ -206,10 +206,12 @@ struct ActivationStateMachine: Equatable, Sendable {
     var pluginPath: String?
     var pluginOpts: String?
     var pluginArgs: [String]?
+    var pluginMode: PluginTransportMode?
     if let program = fields.pluginProgram {
       guard let resolved = plugins.resolve(program: program) else {
         return .failure(.invalidLeaf(node: leafID, reason: .pluginNotProvided(program: program)))
       }
+      pluginMode = resolved.mode == .tcpOnly ? nil : resolved.mode
       pluginPath = resolved.path
       pluginArgs = resolved.arguments.isEmpty ? nil : resolved.arguments
       if let optionsRef = fields.pluginOptionsRef {
@@ -229,7 +231,7 @@ struct ActivationStateMachine: Equatable, Sendable {
         password: password,
         method: fields.encryptionMethod.trimmingCharacters(in: .whitespacesAndNewlines),
         plugin: pluginPath,
-        pluginOpts: pluginOpts, pluginArgs: pluginArgs))
+        pluginOpts: pluginOpts, pluginArgs: pluginArgs, pluginMode: pluginMode))
   }
 
   /// 凭据解析：无条目与读取失败分别点名（D5「凭据不可解析 → 停止并清理」）。
diff --git a/ShadowsocksX-NG2/Domain/Plugin/ManagedPluginProviding.swift b/ShadowsocksX-NG2/Domain/Plugin/ManagedPluginProviding.swift
index ff4cf895..906e9261 100644
--- a/ShadowsocksX-NG2/Domain/Plugin/ManagedPluginProviding.swift
+++ b/ShadowsocksX-NG2/Domain/Plugin/ManagedPluginProviding.swift
@@ -1,10 +1,11 @@
 import Foundation
 
-/// 插件解析 seam：路径与本地启动参数，以及一次派生使用的只读目录快照。
+/// 插件解析 seam：路径、本地启动参数与传输模式，以及一次派生使用的只读目录快照。
 /// nil 表示本地不可用；托管与用户映射共用这一激活语义。
 struct ResolvedPlugin: Equatable, Sendable {
   let path: String
   let arguments: [String]
+  var mode: PluginTransportMode = .tcpOnly
 }
 
 protocol PluginExecutableResolving {
@@ -25,7 +26,7 @@ extension PluginExecutableResolving {
           return PluginCatalogSnapshot.Entry(
             program: program, path: resolved?.path, source: .managed,
             availability: resolved == nil ? .missing : .available, managedInfo: info,
-            arguments: resolved?.arguments ?? [])
+            arguments: resolved?.arguments ?? [], mode: resolved?.mode ?? .tcpOnly)
         }
       })
   }
diff --git a/ShadowsocksX-NG2/Domain/Plugin/PluginCatalog.swift b/ShadowsocksX-NG2/Domain/Plugin/PluginCatalog.swift
index ea68846f..95f1991d 100644
--- a/ShadowsocksX-NG2/Domain/Plugin/PluginCatalog.swift
+++ b/ShadowsocksX-NG2/Domain/Plugin/PluginCatalog.swift
@@ -8,6 +8,7 @@ final class PluginCatalog: ObservableObject, PluginExecutableResolving {
     case save(UserPluginRecord)
     case remove(UUID)
     case managedArguments(program: String, arguments: [String])
+    case managedMode(program: String, mode: PluginTransportMode)
   }
 
   private struct State {
@@ -88,6 +89,15 @@ final class PluginCatalog: ObservableObject, PluginExecutableResolving {
           throw PluginMappingError.nameMissing
         }
         proposed.userPlugins.remove(at: index)
+      case .managedMode(let program, let mode):
+        guard ManagedPluginCatalog.plugins.contains(where: { $0.program == program }) else {
+          throw PluginMappingError.nameMissing
+        }
+        if mode == .tcpOnly {
+          proposed.managedModes.removeValue(forKey: program)
+        } else {
+          proposed.managedModes[program] = mode
+        }
       case .managedArguments(let program, let arguments):
         guard ManagedPluginCatalog.plugins.contains(where: { $0.program == program }) else {
           throw PluginMappingError.nameMissing
diff --git a/ShadowsocksX-NG2/Domain/Plugin/PluginCatalogSnapshot.swift b/ShadowsocksX-NG2/Domain/Plugin/PluginCatalogSnapshot.swift
index b0478ac1..4e5b0899 100644
--- a/ShadowsocksX-NG2/Domain/Plugin/PluginCatalogSnapshot.swift
+++ b/ShadowsocksX-NG2/Domain/Plugin/PluginCatalogSnapshot.swift
@@ -23,6 +23,7 @@ struct PluginCatalogSnapshot: PluginExecutableResolving, Equatable, Sendable {
     let availability: Availability
     let managedInfo: ManagedPluginInfo?
     var arguments: [String] = []
+    var mode: PluginTransportMode = .tcpOnly
     var recordID: UUID?
   }
 
@@ -60,6 +61,7 @@ struct PluginCatalogSnapshot: PluginExecutableResolving, Equatable, Sendable {
         managedInfo: source == .managed ? info : nil,
         arguments: user?.arguments ?? info.flatMap { configuration.managedArguments[$0.program] }
           ?? [],
+        mode: user?.mode ?? info.flatMap { configuration.managedModes[$0.program] } ?? .tcpOnly,
         recordID: user?.id)
     }
     self.managedRecords = Dictionary(
@@ -72,7 +74,8 @@ struct PluginCatalogSnapshot: PluginExecutableResolving, Equatable, Sendable {
             program: info.program, path: path, source: .managed,
             availability: mappingsUnreadable
               ? .unreadable : Self.availability(at: path, fileManager: managed.fileManager),
-            managedInfo: info, arguments: configuration.managedArguments[info.program] ?? [])
+            managedInfo: info, arguments: configuration.managedArguments[info.program] ?? [],
+            mode: configuration.managedModes[info.program] ?? .tcpOnly)
         )
       })
     self.managedArguments = configuration.managedArguments
@@ -124,7 +127,7 @@ struct PluginCatalogSnapshot: PluginExecutableResolving, Equatable, Sendable {
     guard !mappingsUnreadable, let entry = entry(for: program),
       entry.availability == .available, let path = entry.path
     else { return nil }
-    return ResolvedPlugin(path: path, arguments: entry.arguments)
+    return ResolvedPlugin(path: path, arguments: entry.arguments, mode: entry.mode)
   }
 
   func catalogSnapshot() -> PluginCatalogSnapshot { self }
diff --git a/ShadowsocksX-NG2/Domain/Plugin/PluginMappingFileStore.swift b/ShadowsocksX-NG2/Domain/Plugin/PluginMappingFileStore.swift
index 5b5b349b..6f893052 100644
--- a/ShadowsocksX-NG2/Domain/Plugin/PluginMappingFileStore.swift
+++ b/ShadowsocksX-NG2/Domain/Plugin/PluginMappingFileStore.swift
@@ -5,12 +5,60 @@ struct UserPluginRecord: Codable, Equatable, Identifiable, Sendable {
   var names: [String]
   var path: String
   var arguments: [String] = []
+  var mode: PluginTransportMode = .tcpOnly
+
+  enum CodingKeys: String, CodingKey {
+    case id, names, path, arguments
+    case mode = "plugin_mode"
+  }
+
+  init(
+    id: UUID = UUID(), names: [String], path: String, arguments: [String] = [],
+    mode: PluginTransportMode = .tcpOnly
+  ) {
+    self.id = id
+    self.names = names
+    self.path = path
+    self.arguments = arguments
+    self.mode = mode
+  }
+
+  init(from decoder: any Decoder) throws {
+    let values = try decoder.container(keyedBy: CodingKeys.self)
+    id = try values.decode(UUID.self, forKey: .id)
+    names = try values.decode([String].self, forKey: .names)
+    path = try values.decode(String.self, forKey: .path)
+    arguments = try values.decode([String].self, forKey: .arguments)
+    mode =
+      values.contains(.mode) ? try values.decode(PluginTransportMode.self, forKey: .mode) : .tcpOnly
+  }
 }
 
 struct PluginConfiguration: Codable, Equatable, Sendable {
   var userPlugins: [UserPluginRecord] = []
   /// Keys are fixed managed-record identities, independent of their aliases.
   var managedArguments: [String: [String]] = [:]
+  var managedModes: [String: PluginTransportMode] = [:]
+
+  enum CodingKeys: String, CodingKey { case userPlugins, managedArguments, managedModes }
+
+  init(
+    userPlugins: [UserPluginRecord] = [], managedArguments: [String: [String]] = [:],
+    managedModes: [String: PluginTransportMode] = [:]
+  ) {
+    self.userPlugins = userPlugins
+    self.managedArguments = managedArguments
+    self.managedModes = managedModes
+  }
+
+  init(from decoder: any Decoder) throws {
+    let values = try decoder.container(keyedBy: CodingKeys.self)
+    userPlugins = try values.decode([UserPluginRecord].self, forKey: .userPlugins)
+    managedArguments = try values.decode([String: [String]].self, forKey: .managedArguments)
+    managedModes =
+      values.contains(.managedModes)
+      ? try values.decode([String: PluginTransportMode].self, forKey: .managedModes) : [:]
+  }
 
   func validate() throws {
     var names = Set<String>()
@@ -30,6 +78,11 @@ struct PluginConfiguration: Codable, Equatable, Sendable {
       }
       try Self.validateArguments(record.arguments)
     }
+    for program in managedModes.keys {
+      guard ManagedPluginCatalog.plugins.contains(where: { $0.program == program }) else {
+        throw PluginMappingError.nameMissing
+      }
+    }
     for (program, arguments) in managedArguments {
       guard ManagedPluginCatalog.plugins.contains(where: { $0.program == program }) else {
         throw PluginMappingError.nameMissing
diff --git a/ShadowsocksX-NG2/Domain/Plugin/PluginTransportMode.swift b/ShadowsocksX-NG2/Domain/Plugin/PluginTransportMode.swift
new file mode 100644
index 00000000..59285f98
--- /dev/null
+++ b/ShadowsocksX-NG2/Domain/Plugin/PluginTransportMode.swift
@@ -0,0 +1,4 @@
+enum PluginTransportMode: String, Codable, CaseIterable, Sendable {
+  case tcpOnly = "tcp_only"
+  case tcpAndUDP = "tcp_and_udp"
+}
diff --git a/ShadowsocksX-NG2/Domain/Runtime/SslocalRuntimeDocument.swift b/ShadowsocksX-NG2/Domain/Runtime/SslocalRuntimeDocument.swift
index 1e5a728f..f67ff57a 100644
--- a/ShadowsocksX-NG2/Domain/Runtime/SslocalRuntimeDocument.swift
+++ b/ShadowsocksX-NG2/Domain/Runtime/SslocalRuntimeDocument.swift
@@ -187,6 +187,7 @@ struct SslocalServerDocument: Codable, Equatable, Sendable {
   let plugin: String?
   let pluginOpts: String?
   var pluginArgs: [String]?
+  var pluginMode: PluginTransportMode?
 
   enum CodingKeys: String, CodingKey {
     case id, server
@@ -194,6 +195,7 @@ struct SslocalServerDocument: Codable, Equatable, Sendable {
     case password, method, plugin
     case pluginOpts = "plugin_opts"
     case pluginArgs = "plugin_args"
+    case pluginMode = "plugin_mode"
   }
 }
 
diff --git a/ShadowsocksX-NG2/README.md b/ShadowsocksX-NG2/README.md
index 01953ee7..aa4f23b3 100644
--- a/ShadowsocksX-NG2/README.md
+++ b/ShadowsocksX-NG2/README.md
@@ -153,8 +153,8 @@ Python 是唯一的上游转换实现；Swift 只加载、校验并消费快照
 
 ### 用户插件目录
 
-`PluginCatalog` 合成当前托管清单与本机 `plugins.json` 用户记录，名称精确区分大小写。用户映射优先，失效 override 不退回托管程序；删除 override 恢复当前 app 默认值。文件读取错误保留阻断事实，不按空映射处理。用户路径与本地启动参数不进入服务器资料、订阅或分享文件。用户路径也不进入诊断报告。
+`PluginCatalog` 合成当前托管清单与本机 `plugins.json` 用户记录，名称精确区分大小写。用户映射优先，失效 override 不退回托管程序；删除 override 恢复当前 app 默认值。文件读取错误保留阻断事实，不按空映射处理。用户路径、本地启动参数与插件传输模式不进入服务器资料、订阅或分享文件。用户路径也不进入诊断报告。
 
-设置页底部的“插件”区域统一展示内置与用户插件，按记录展示全部名称，支持新增、编辑名称集合与路径、逐名称覆盖内置、删除记录与恢复同名内置。内置记录可单独设置或清空本地启动参数。名称与启动参数使用列表编辑，启动参数保留顺序和完整字符串；路径支持手动输入与文件选择。读取失败时隐藏条目并提供只读重试，管理 UI 不提供整体重置。映射提交与显式修复 interface 在组合根统一接入表单、激活与诊断。保存成功后刷新激活候选并异步收敛，运行失败不撤销保存。没有文件替换监控。`plugins.json` v1 每项独立迁移为带持久身份的用户记录，下一次保存写入 v2，不按相同路径合并。现有内置程序同时提供 `v2ray-plugin` 和 `v2ray-plugin-v1`。详见 [ADR-0033](../docs/adr/0033-plugin-records-own-aliases-and-local-arguments.md)。
+设置页底部的“插件”区域统一展示内置与用户插件，按记录展示全部名称，支持新增、编辑名称集合与路径、逐名称覆盖内置、删除记录与恢复同名内置。用户与内置记录可以设置插件传输模式 `tcp_only` 或 `tcp_and_udp`；默认 `tcp_only`，生成 sslocal 配置时省略 `plugin_mode`。应用不探测插件的 SIP003u 支持。内置编辑器中的“清空参数”只清空草稿启动参数并保留模式，保存后生效。名称与启动参数使用列表编辑，启动参数保留顺序和完整字符串；路径支持手动输入与文件选择。读取失败时隐藏条目并提供只读重试，管理 UI 不提供整体重置。映射提交与显式修复 interface 在组合根统一接入表单、激活与诊断。保存成功后刷新激活候选并异步收敛，运行失败不撤销保存。没有文件替换监控。`plugins.json` v1 每项独立迁移为带持久身份的用户记录，下一次保存写入 v2，不按相同路径合并。现有内置程序同时提供 `v2ray-plugin` 和 `v2ray-plugin-v1`。详见 [ADR-0033](../docs/adr/0033-plugin-records-own-aliases-and-local-arguments.md)。
 
 `MacOSPluginInspection` 只读取下载隔离、签名与系统评估事实，不启动用户插件、不修改系统策略。检查失败或不适用为未知；策略评估拒绝不等于实际执行禁令，也不阻止映射保存或激活。真实 macOS 拦截提示不由 hostless 替身测试证明。
diff --git a/ShadowsocksX-NG2/Tests/Plugin/PluginManagementTests.swift b/ShadowsocksX-NG2/Tests/Plugin/PluginManagementTests.swift
index 41f0c7c0..6a1106cb 100644
--- a/ShadowsocksX-NG2/Tests/Plugin/PluginManagementTests.swift
+++ b/ShadowsocksX-NG2/Tests/Plugin/PluginManagementTests.swift
@@ -5,6 +5,35 @@ import Testing
 
 @MainActor
 struct PluginManagementTests {
+  @Test func editingTransportModePersistsForUserAndManagedRecords() throws {
+    let fixture = try ManagementFixture()
+    defer { fixture.cleanUp() }
+    let model = PluginManagementModel(catalog: fixture.catalog)
+    let add = model.beginAdding()
+    #expect(add.initialMode == .tcpOnly)
+    try model.save(
+      add, names: ["custom", "custom-v2"], path: fixture.first.path,
+      arguments: ["--verbose"], mode: .tcpAndUDP)
+    let edit = try #require(model.testBeginEditing("custom"))
+    #expect(edit.initialMode == .tcpAndUDP)
+    try model.save(
+      edit, names: edit.initialNames, path: edit.initialPath,
+      arguments: [], mode: edit.initialMode)
+    #expect(model.snapshot.resolve(program: "custom-v2")?.mode == .tcpAndUDP)
+    #expect(model.snapshot.resolve(program: "custom-v2")?.arguments == [])
+    let managed = try #require(model.beginManagedSettings("v2ray-plugin"))
+    #expect(managed.initialMode == .tcpOnly)
+    try model.save(
+      managed, names: managed.initialNames, path: "",
+      arguments: ["--verbose"], mode: .tcpAndUDP)
+    let restored = PluginManagementModel(
+      catalog: PluginCatalog(store: fixture.store, inspector: ManagementInspector()))
+    #expect(restored.beginManagedSettings("v2ray-plugin")?.initialMode == .tcpAndUDP)
+    #expect(restored.testBeginEditing("custom")?.initialMode == .tcpAndUDP)
+    try restored.save(managed, names: managed.initialNames, path: "", mode: .tcpOnly)
+    #expect(restored.beginManagedSettings("v2ray-plugin")?.initialMode == .tcpOnly)
+  }
+
   @Test func fullyOverriddenManagedRecordKeepsItsOwnFileFacts() throws {
     let fixture = try ManagementFixture()
     defer { fixture.cleanUp() }
@@ -18,12 +47,12 @@ struct PluginManagementTests {
     #expect(covered.availability == original.availability)
     #expect(covered.overriddenNames == ["v2ray-plugin", "v2ray-plugin-v1"])
     #expect(covered.path != fixture.first.path)
-    let edit = try #require(model.beginManagedArguments("v2ray-plugin"))
+    let edit = try #require(model.beginManagedSettings("v2ray-plugin"))
     try model.save(edit, names: edit.initialNames, path: "", arguments: ["--threads", "8"])
-    #expect(model.beginManagedArguments("v2ray-plugin")?.initialArguments == ["--threads", "8"])
+    #expect(model.beginManagedSettings("v2ray-plugin")?.initialArguments == ["--threads", "8"])
     #expect(model.snapshot.resolve(program: "v2ray-plugin")?.arguments == ["--verbose"])
     try model.clearManagedArguments("v2ray-plugin")
-    #expect(model.beginManagedArguments("v2ray-plugin")?.initialArguments == [])
+    #expect(model.beginManagedSettings("v2ray-plugin")?.initialArguments == [])
   }
 
   @Test func editingChangesNamesAndUpdatesExecutable() throws {
@@ -95,14 +124,16 @@ struct PluginManagementTests {
     try FileManager.default.moveItem(at: config, to: backup)
     try Data("blocking file".utf8).write(to: config)
     #expect(throws: (any Error).self) {
-      try model.save(edit, names: ["custom"], path: fixture.second.path)
+      try model.save(edit, names: ["custom"], path: fixture.second.path, mode: .tcpAndUDP)
     }
     #expect(model.snapshot.entry(for: "custom")?.path == fixture.first.path)
     #expect(model.testBeginEditing("custom")?.initialPath == fixture.first.path)
+    #expect(model.testBeginEditing("custom")?.initialMode == .tcpOnly)
     try FileManager.default.removeItem(at: config)
     try FileManager.default.moveItem(at: backup, to: config)
-    try model.save(edit, names: ["custom"], path: fixture.second.path)
+    try model.save(edit, names: ["custom"], path: fixture.second.path, mode: .tcpAndUDP)
     #expect(model.snapshot.entry(for: "custom")?.path == fixture.second.path)
+    #expect(model.testBeginEditing("custom")?.initialMode == .tcpAndUDP)
   }
 
   @Test func unavailableFilesAndDuplicateNamesAreRejectedAndRemovalKeepsOtherMappings() throws {
diff --git a/ShadowsocksX-NG2/Tests/Plugin/PluginMappingCommitTests.swift b/ShadowsocksX-NG2/Tests/Plugin/PluginMappingCommitTests.swift
index 142920a0..2f15a23e 100644
--- a/ShadowsocksX-NG2/Tests/Plugin/PluginMappingCommitTests.swift
+++ b/ShadowsocksX-NG2/Tests/Plugin/PluginMappingCommitTests.swift
@@ -6,6 +6,23 @@ import XCTest
 
 @MainActor
 struct PluginMappingCommitTests {
+  @Test func savedTransportModeUpdatesActiveRuntime() async throws {
+    let fixture = try PluginMappingCommitFixture()
+    defer { fixture.cleanUp() }
+    try await fixture.controller.activate(fixture.group)
+    var record = try #require(fixture.plugins.userRecords.first { $0.names.contains("tool") })
+    record.mode = .tcpAndUDP
+    try fixture.plugins.commit([.save(record)])
+    _ = await fixture.nextApplication()
+    #expect(
+      fixture.files.loadDocument()?.servers.first { $0.plugin != nil }?.pluginMode == .tcpAndUDP)
+    #expect(fixture.controller.state == .running)
+    record.mode = .tcpOnly
+    try fixture.plugins.commit([.save(record)])
+    _ = await fixture.nextApplication()
+    #expect(fixture.files.loadDocument()?.servers.first { $0.plugin != nil }?.pluginMode == nil)
+  }
+
   @Test func runtimeFailureDoesNotUndoSavedMapping() async throws {
     let fixture = try PluginMappingCommitFixture()
     defer { fixture.cleanUp() }
diff --git a/ShadowsocksX-NG2/Tests/Plugin/PluginRecordTests.swift b/ShadowsocksX-NG2/Tests/Plugin/PluginRecordTests.swift
index 83ea3811..3b59d5e1 100644
--- a/ShadowsocksX-NG2/Tests/Plugin/PluginRecordTests.swift
+++ b/ShadowsocksX-NG2/Tests/Plugin/PluginRecordTests.swift
@@ -4,6 +4,66 @@ import Testing
 @testable import ShadowsocksX_NG2
 
 struct PluginRecordTests {
+  @Test(arguments: [
+    #"{"userPlugins":[{"id":"00000000-0000-0000-0000-000000000001","names":["tool"],"path":"/missing/tool","arguments":[],"plugin_mode":"udp_only"}],"managedArguments":{}}"#,
+    #"{"userPlugins":[],"managedArguments":{},"managedModes":{"v2ray-plugin":"udp_only"}}"#,
+  ])
+  func unknownTransportModeBlocksReadingWithoutRewriting(configurationJSON: String) throws {
+    let root = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
+    defer { try? FileManager.default.removeItem(at: root) }
+    try FileManager.default.createDirectory(at: root, withIntermediateDirectories: true)
+    let store = PluginMappingFileStore(fileURL: root.appendingPathComponent("plugins.json"))
+    let original = Data(
+      "{\"version\":2,\"configuration\":\(configurationJSON)}".utf8)
+    try original.write(to: store.fileURL)
+    #expect(throws: PluginMappingError.unreadable) { try store.load() }
+    #expect(try Data(contentsOf: store.fileURL) == original)
+  }
+
+  @Test func oldV2RecordsDefaultToTCPWithoutRewriting() throws {
+    let root = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
+    defer { try? FileManager.default.removeItem(at: root) }
+    try FileManager.default.createDirectory(at: root, withIntermediateDirectories: true)
+    let store = PluginMappingFileStore(fileURL: root.appendingPathComponent("plugins.json"))
+    let original = Data(
+      #"{"version":2,"configuration":{"userPlugins":[{"id":"00000000-0000-0000-0000-000000000001","names":["tool"],"path":"/missing/tool","arguments":[]}],"managedArguments":{}}}"#
+        .utf8)
+    try original.write(to: store.fileURL)
+    let configuration = try store.load()
+    #expect(configuration.userPlugins.first?.mode == .tcpOnly)
+    #expect(
+      PluginCatalogSnapshot(configuration: configuration).managedRecords["v2ray-plugin"]?.mode
+        == .tcpOnly)
+    #expect(try Data(contentsOf: store.fileURL) == original)
+    try store.save(configuration)
+    #expect(try store.load() == configuration)
+  }
+
+  @Test @MainActor func managedModePersistsAcrossAliasesAndArgumentClearing() throws {
+    let root = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
+    defer { try? FileManager.default.removeItem(at: root) }
+    let binary = root.appendingPathComponent("Contents/Helpers/Plugins/v2ray-plugin")
+    try FileManager.default.createDirectory(
+      at: binary.deletingLastPathComponent(), withIntermediateDirectories: true)
+    try Data("#!/bin/sh\n".utf8).write(to: binary)
+    try FileManager.default.setAttributes([.posixPermissions: 0o755], ofItemAtPath: binary.path)
+    let store = PluginMappingFileStore(fileURL: root.appendingPathComponent("plugins.json"))
+    try Data(
+      #"{"version":2,"configuration":{"userPlugins":[],"managedArguments":{"v2ray-plugin":["--verbose"]},"managedModes":{"v2ray-plugin":"tcp_and_udp"}}}"#
+        .utf8
+    ).write(to: store.fileURL)
+    let managed = BundleManagedPluginProvider(bundleURL: root)
+    let catalog = PluginCatalog(store: store, managed: managed, inspector: QuietPluginInspector())
+    #expect(catalog.resolve(program: "v2ray-plugin-v1")?.mode == .tcpAndUDP)
+    try catalog.commit([.managedArguments(program: "v2ray-plugin", arguments: [])])
+    let restored = PluginCatalog(store: store, managed: managed, inspector: QuietPluginInspector())
+    #expect(restored.resolve(program: "v2ray-plugin")?.mode == .tcpAndUDP)
+    #expect(restored.resolve(program: "v2ray-plugin")?.arguments == [])
+    try restored.commit([.save(UserPluginRecord(names: ["v2ray-plugin"], path: binary.path))])
+    #expect(restored.resolve(program: "v2ray-plugin")?.mode == .tcpOnly)
+    #expect(restored.resolve(program: "v2ray-plugin-v1")?.mode == .tcpAndUDP)
+  }
+
   @Test @MainActor func sharingKeepsReferenceAndOptionsWithoutLocalArguments() async throws {
     let root = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
     defer { try? FileManager.default.removeItem(at: root) }
@@ -18,7 +78,7 @@ struct PluginRecordTests {
       .save(
         UserPluginRecord(
           names: ["tool", "tool-v2"], path: binary.path,
-          arguments: ["--local-argument-sentinel"]))
+          arguments: ["--local-argument-sentinel"], mode: .tcpAndUDP))
     ])
     let workflow = makeCatalogWorkflow(
       coordinator: CatalogCommitCoordinator(
@@ -36,9 +96,11 @@ struct PluginRecordTests {
     #expect(server["plugin"] as? String == "tool-v2")
     #expect(server["plugin_opts"] as? String == "tls;host=example.com")
     #expect(server["plugin_args"] == nil)
+    #expect(server["plugin_mode"] == nil)
     let uri = try workflow.shareURI(for: id)
     #expect(uri.contains("tool-v2"))
     #expect(!uri.contains("local-argument-sentinel"))
+    #expect(!uri.contains("tcp_and_udp"))
     #expect(!String(decoding: draft.data, as: UTF8.self).contains(binary.path))
   }
 
@@ -111,7 +173,9 @@ struct PluginRecordTests {
     #expect(Set(configuration.userPlugins.map(\.id)).count == 2)
     #expect(configuration.userPlugins.map(\.names) == [["tool"], ["tool-v2"]])
     #expect(
-      configuration.userPlugins.allSatisfy { $0.arguments.isEmpty && $0.path == "/missing/tool" })
+      configuration.userPlugins.allSatisfy {
+        $0.arguments.isEmpty && $0.path == "/missing/tool" && $0.mode == .tcpOnly
+      })
     #expect(try Data(contentsOf: store.fileURL) == original)
     try store.save(configuration)
     #expect(try store.load() == configuration)
@@ -120,7 +184,10 @@ struct PluginRecordTests {
     #expect(json["version"] as? Int == 2)
   }
 
-  @Test @MainActor func activationWritesLocalArgumentsWithoutChangingServerOptions() throws {
+  @Test(arguments: [PluginTransportMode.tcpOnly, .tcpAndUDP])
+  @MainActor func activationWritesLocalArgumentsWithoutChangingServerOptions(
+    mode: PluginTransportMode
+  ) throws {
     let root = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
     defer { try? FileManager.default.removeItem(at: root) }
     try FileManager.default.createDirectory(at: root, withIntermediateDirectories: true)
@@ -134,7 +201,7 @@ struct PluginRecordTests {
       .save(
         UserPluginRecord(
           names: ["tool", "tool-v2"], path: binary.path,
-          arguments: ["--threads", "4", "--log-file", "/tmp/My Log.txt", ""]))
+          arguments: ["--threads", "4", "--log-file", "/tmp/My Log.txt", ""], mode: mode))
     ])
     let credentials = InMemoryCredentialStore()
     var catalog = ConfigurationCatalog()
@@ -154,6 +221,7 @@ struct PluginRecordTests {
     let server = try #require((json["servers"] as? [[String: Any]])?.first)
     #expect(
       server["plugin_args"] as? [String] == ["--threads", "4", "--log-file", "/tmp/My Log.txt", ""])
+    #expect(server["plugin_mode"] as? String == (mode == .tcpAndUDP ? "tcp_and_udp" : nil))
     #expect(server["plugin"] as? String == binary.path)
     #expect(server["plugin_opts"] as? String == "tls;host=example.com")
     #expect(try ActivationFixture.serverFields(of: leaf, in: catalog).pluginProgram == "tool-v2")
diff --git a/ShadowsocksX-NG2/project.yml b/ShadowsocksX-NG2/project.yml
index f98e9b52..387aebb5 100644
--- a/ShadowsocksX-NG2/project.yml
+++ b/ShadowsocksX-NG2/project.yml
@@ -195,6 +195,7 @@ targets:
       - path: Domain/Runtime/ProxyACL.swift
       - path: Domain/Rules/ProxyRule.swift
       - path: Domain/Runtime/SslocalRuntimeDocument.swift
+      - path: Domain/Plugin/PluginTransportMode.swift
       - path: Domain/Runtime/SslocalListenSettings.swift
       - path: Domain/Runtime/RuntimeLog.swift
       - path: Domain/Runtime/EndpointHealthProbe.swift
diff --git a/docs/adr/0033-plugin-records-own-aliases-and-local-arguments.md b/docs/adr/0033-plugin-records-own-aliases-and-local-arguments.md
index fd513d7f..754bd9e6 100644
--- a/docs/adr/0033-plugin-records-own-aliases-and-local-arguments.md
+++ b/docs/adr/0033-plugin-records-own-aliases-and-local-arguments.md
@@ -1,10 +1,10 @@
 # 插件记录拥有别名与本地启动参数
 
-插件记录以名称集合、可执行程序选择与有序本地启动参数表达同一个插件版本。服务器继续保存原始引用名称；名称精确区分大小写，不解析版本后缀、不探测二进制版本。无版本名称指向最新大版本是记录维护者的显式选择，带版本名称用于固定大版本。这样同一版本的多个引用共享本机配置，而目录解析 module 集中承担名称归属与程序选择。
+插件记录以名称集合、可执行程序选择、有序本地启动参数与插件传输模式表达同一个插件版本。服务器继续保存原始引用名称；名称精确区分大小写，不解析版本后缀、不探测二进制版本。无版本名称指向最新大版本是记录维护者的显式选择，带版本名称用于固定大版本。这样同一版本的多个引用共享本机配置，而目录解析 module 集中承担名称归属与程序选择。
 
 用户记录具有独立持久身份，可编辑名称集合。不同用户记录禁止重名；用户只覆盖明确声明的内置名称，失效覆盖不回退内置程序。删除或移动名称不改写服务器和订阅引用。无版本名称通过先从旧记录删除并保存、再加入新记录并保存转移，接受中间暂时不可解析，以免增加专门的跨记录转移流程。
 
-内置记录的固定身份、引用名称与打包文件名分开维护。现有 v2ray-plugin v1.3.2 同时提供 `v2ray-plugin` 与 `v2ray-plugin-v1`，仍使用原二进制。内置名称由应用发布维护；本机可以只设置或清空内置记录的启动参数，不必覆盖路径。仍使用内置记录的名称共享这些参数，被用户覆盖的名称使用用户记录自己的参数。
+内置记录的固定身份、引用名称与打包文件名分开维护。现有 v2ray-plugin v1.3.2 同时提供 `v2ray-plugin` 与 `v2ray-plugin-v1`，仍使用原二进制。内置名称由应用发布维护；本机可以设置内置记录的启动参数与插件传输模式，不必覆盖路径。仍使用内置记录的名称共享这些参数与模式，被用户覆盖的名称使用用户记录自己的参数与模式。
 
 本地启动参数按普通配置保存，不额外接入凭据存储或增加敏感信息处理。每项是一个完整 argument，保留顺序、空格与空字符串，不执行 shell 解析，拒绝无法传给进程的 NUL。运行配置生成时写入 `plugin_args`，与服务器 `plugin_opts` 独立；本地路径和启动参数不进入服务器分享、导出或订阅资料。
 
@@ -13,3 +13,7 @@
 设置列表按记录显示全部名称、路径、来源与可用性，内置记录标记被覆盖的名称。编辑器以列表编辑用户名称与启动参数，参数可调整顺序；服务器选择器显示每个可引用名称并保存所选原文。删除用户记录删除其全部名称，并恢复同名内置选择。
 
 验证覆盖目录与运行配置 seam、持久化迁移、失败不发布及源码界面。此次不运行真实 sslocal 参数传递验证，按用户确认的验收范围执行。
+
+插件传输模式提供 `tcp_only` 与 `tcp_and_udp`，由用户判断插件是否支持 SIP003u，不探测二进制能力、不维护支持清单。默认 `tcp_only`，运行配置省略 `plugin_mode`；`tcp_and_udp` 则显式写入该值。它只决定流量是否经过插件，不改变本地 SOCKS5 UDP 中继能力，也不保证插件自身支持 UDP。模式属于本机记录，不进入分享或订阅。旧 v1、v2 文件缺少模式时使用默认值；未知值按读取失败处理，保留原文件并阻止修改。内置记录的模式按固定身份保存，与用户覆盖独立。
+
+编辑器显示「插件传输模式」。内置入口为「设置」，标题为「内置插件设置」。「清空参数」移入编辑器，只清空草稿中的启动参数并保留模式，点击「保存」才提交，点击「取消」放弃。模式与参数一次保存并沿用既有提交后运行更新流程。本次模式验收不包含真实 SIP003u 通信。
diff --git a/docs/design/plugin-transport-mode.md b/docs/design/plugin-transport-mode.md
new file mode 100644
index 00000000..2f6c5586
--- /dev/null
+++ b/docs/design/plugin-transport-mode.md
@@ -0,0 +1,47 @@
+# 插件记录的传输模式
+
+日期：2026-10-11。状态：实施与验收完成。本文记录本次设计，不代表当前代码行为。
+
+## 需求与已确认决定
+
+- 插件记录增加 `plugin_mode`，候选值仅为 `tcp_only` 和 `tcp_and_udp`。
+- 默认值为 `tcp_only`；生成 sslocal 配置时省略该值。
+- `tcp_and_udp` 使 TCP 与 UDP 经过插件，用于用户自行配置支持 SIP003u 的插件。应用不探测支持情况，不维护支持清单。
+- 用户与内置插件记录均可以配置传输模式。同一记录的别名共享模式；用户覆盖使用用户记录自己的模式。
+- 模式仅保存在本机插件配置，不进入服务器资料、分享或订阅。
+- 旧文件缺少字段时使用 `tcp_only`；未知值使读取失败，保留原文件，并沿用读取失败时阻止修改的行为。
+- 保存成功后发布目录快照，并更新活动运行配置。保存失败不发布；运行更新失败不撤销成功保存的配置。
+- 本次验收包含配置与源码构建的界面，不包含真实 SIP003u 通信。
+
+## 界面
+
+- 编辑器新增「插件传输模式」，选项原样显示 `tcp_only` 与 `tcp_and_udp`。
+- 内置记录入口从「启动参数」改为「设置」，编辑器标题改为「内置插件设置」。
+- 将内置记录的「清空参数」从设置列表移入编辑器的「本地启动参数」区域。
+- 「清空参数」只清空当前编辑草稿的启动参数，保留传输模式；点击「保存」才写入配置，点击「取消」放弃草稿。参数为空时禁用按钮。
+- 不增加列表模式摘要或单独的恢复默认操作。
+
+## 验收
+
+- 新记录默认使用 `tcp_only`；旧 v1、v2 文件可以读取，缺少模式时保持原行为。
+- 两种模式保存后可以重新读取；未知模式触发读取失败。
+- `tcp_only` 的 sslocal 服务器配置省略 `plugin_mode`；`tcp_and_udp` 写入 `plugin_mode: "tcp_and_udp"`；无插件时省略全部插件字段。
+- 用户记录、内置记录、同记录别名与用户覆盖使用正确模式。
+- 保存失败不发布新模式；保存成功触发既有运行更新流程。
+- 源码构建的界面验证模式选择、草稿清空、取消与保存行为，并验证列表不再显示「清空参数」。
+- 真实 SIP003u 通信标记为未验证。
+
+## 上游依据
+
+- 固定 shadowsocks-rust v1.25.0 的[配置解析](https://github.com/shadowsocks/shadowsocks-rust/blob/v1.25.0/crates/shadowsocks-service/src/config.rs#L2192-L2217)：缺少 `plugin_mode` 时使用 `TcpOnly`。
+- 固定版本的[地址选择](https://github.com/shadowsocks/shadowsocks-rust/blob/v1.25.0/crates/shadowsocks/src/config.rs#L712-L728)：插件模式控制 TCP 与 UDP 是否使用插件地址。`tcp_only` 不关闭本地 SOCKS5 UDP 中继；`tcp_and_udp` 不保证插件自身支持 UDP。
+
+## 本次验收结果
+
+- 定向插件测试：22 项通过，0 失败，0 跳过。
+- `task test`：1007 项 hostless 测试通过，0 失败，0 跳过；规则转换测试 21 项通过。该命令构建当前 app、Core 与 Agent。
+- 现有真实 sslocal 插件进程冒烟测试：1 项通过；只验证默认 TCP 插件进程启动、监听与退出，不代表 SIP003u 通信验收。
+- 修改文件的 `swift format lint --strict` 与 `git diff --check` 通过；全仓 SwiftLint 为 29 项警告，0 严重违规。
+- 当前仓库源码编译的隔离原生预览通过：列表入口、两种模式、保存后重新打开、清空草稿、取消保留原参数、保存清空后保留模式、用户记录默认模式。夹具使用临时目录，不读取实际用户插件配置。
+- Standards 审查：0 项标准违规；将内置编辑入口改名为 `beginManagedSettings`，对应当前职责。Spec 审查：0 项缺陷。
+- 真实 SIP003u 通信未验证，按确认的验收范围执行。