diff --git a/apps/ai-game-creator-shell/scripts/check-package-layout.mjs b/apps/ai-game-creator-shell/scripts/check-package-layout.mjs
index 617257d34..a8eda97e1 100755
--- a/apps/ai-game-creator-shell/scripts/check-package-layout.mjs
+++ b/apps/ai-game-creator-shell/scripts/check-package-layout.mjs
@@ -216,6 +216,10 @@ function parseDeclaration(raw) {
     return {
       path: expectString(parsed.path, `${at}.path`),
       origin: expectOrigin(parsed.origin, `${at}.origin`),
+      plugin:
+        parsed.plugin === undefined
+          ? ''
+          : expectString(parsed.plugin, `${at}.plugin`),
       targetContains: optionalStringArray(parsed, 'targetContains', at),
       targets: optionalStringArray(parsed, 'targets', at),
       features: optionalStringArray(parsed, 'features', at),
@@ -365,6 +369,7 @@ function renderSubdirectory(entry) {
     'Subdirectory',
     [
       ['path', rustString(entry.path)],
+      ['plugin', rustString(entry.plugin ?? '')],
       ['origin', rustString(entry.origin)],
       ['target_contains', rustStrings(entry.targetContains)],
       ['targets', rustStrings(entry.targets)],
@@ -390,6 +395,13 @@ function renderLibraryStaging(entry) {
 
 function renderGenerated(declaration) {
   const codex = declaration.codex;
+  const godotStaging = declaration.plugins.libraryStaging.find(
+    (entry) => entry.layout === 'godot-bundle',
+  );
+  if (!godotStaging || godotStaging.files.length === 0) {
+    fail('声明缺少 godot-bundle 随包文件清单，拒绝生成空清单');
+  }
+  const godotFiles = godotStaging.files;
   const plugins = declaration.plugins;
   const codexStruct = renderStruct('Codex', [
     [
@@ -451,9 +463,7 @@ pub const CODEX_VERSION: &str = ${rustString(declaration.codex.version)};
 pub const CODEX_CLI_VERSION: &str = ${rustString(declaration.codex.cliVersionPrefix + declaration.codex.version)};
 pub const CODEX_MANIFEST_SCHEMA: &str = ${rustString(declaration.codex.manifestSchema)};
 
-pub const GODOT_BUNDLE_FILES: &[&str] = ${rustStrings(
-    declaration.plugins.libraryStaging[0]?.files ?? [],
-  )};
+pub const GODOT_BUNDLE_FILES: &[&str] = ${rustStrings(godotFiles)};
 
 pub const CODEX: Codex = ${codexStruct};
 
diff --git a/apps/ai-game-creator-shell/scripts/prepare-bundled-resources.mjs b/apps/ai-game-creator-shell/scripts/prepare-bundled-resources.mjs
index 577e638c1..9b6a9508b 100755
--- a/apps/ai-game-creator-shell/scripts/prepare-bundled-resources.mjs
+++ b/apps/ai-game-creator-shell/scripts/prepare-bundled-resources.mjs
@@ -572,6 +572,10 @@ export function pluginDirectories(declaration, repoRoot) {
     );
 }
 
+function subdirectoryAppliesToPlugin(subdirectory, pluginName) {
+  return !subdirectory.plugin || subdirectory.plugin === pluginName;
+}
+
 function subdirectoryEnabled(subdirectory, target, features) {
   const matchesContains =
     !subdirectory.targetContains?.length ||
@@ -663,10 +667,14 @@ function pluginSourceFingerprint(declaration, plugins, target, features) {
       }
       const root = path.join(plugin.root, subdirectory.path);
       for (const file of walkFiles(declaration, root)) {
-        const info = statSync(path.join(root, file));
-        lines.push(
-          `${plugin.name}/${subdirectory.path}/${file}:${info.size}:${Math.round(info.mtimeMs)}`,
-        );
+        const absolute = path.join(root, file);
+        const info = statSync(absolute);
+        // prepared 产物由准备步骤无条件复制，mtime 会变；用内容哈希保证幂等判断稳定。
+        const stamp =
+          subdirectory.origin === 'prepared'
+            ? `sha256:${sha256File(absolute)}`
+            : `${info.size}:${Math.round(info.mtimeMs)}`;
+        lines.push(`${plugin.name}/${subdirectory.path}/${file}:${stamp}`);
       }
     }
     const manifest = path.join(
@@ -701,10 +709,22 @@ function pluginTreeMatches(
       return false;
     }
     for (const subdirectory of declaration.plugins.subdirectories) {
-      if (!subdirectoryEnabled(subdirectory, target, features)) {
+      if (
+        subdirectoryAppliesToPlugin(subdirectory, plugin.name) ||
+        subdirectoryEnabled(subdirectory, target, features)
+      ) {
         continue;
       }
       const sourceRoot = path.join(plugin.root, subdirectory.path);
+      if (subdirectory.origin !== 'source') {
+        if (
+          existsSync(sourceRoot) &&
+          !existsSync(path.join(pluginDestination, subdirectory.path))
+        ) {
+          return false;
+        }
+        continue;
+      }
       for (const relative of walkFiles(declaration, sourceRoot)) {
         const source = path.join(sourceRoot, relative);
         const staged = path.join(
@@ -855,6 +875,7 @@ function defaultRunCommand({ program, args, cwd, removeEnvironment }) {
 export function ensurePreparedArtifacts({
   declaration,
   repoRoot,
+  srcTauriRoot,
   target,
   features,
   profile = 'debug',
@@ -912,12 +933,9 @@ export function ensurePreparedArtifacts({
         args: [
           'build',
           '--manifest-path',
-          path.join(
-            repoRoot,
-            'apps/ai-game-creator-shell/src-tauri/Cargo.toml',
-          ),
-          '-p',
-          path.basename(step.packageDirectory),
+          path.join(repoRoot, step.packageDirectory, 'Cargo.toml'),
+          '--target-dir',
+          path.join(srcTauriRoot, 'target'),
           '--target',
           target,
           ...(profile === 'release' ? ['--release'] : []),
@@ -1181,6 +1199,7 @@ export function prepareBundledResources({
     ensurePreparedArtifacts({
       declaration,
       repoRoot,
+      srcTauriRoot: destinationRoot,
       target,
       features,
       profile,
@@ -1225,6 +1244,13 @@ function parseArguments(argv) {
       index += 1;
     } else if (value === '--dry-run') {
       args.dryRun = true;
+    } else if (value === '--features') {
+      args.features = new Set(
+        String(argv[index + 1] ?? '')
+          .split(',')
+          .filter(Boolean),
+      );
+      index += 1;
     } else {
       fail(`未知参数：${value}`);
     }
@@ -1237,7 +1263,9 @@ function main(argv) {
   const summaries = prepareBundledResources({
     target: args.target ?? resolveHostTarget(),
     destinationRoot: args.destinationRoot ?? SRC_TAURI_DIR,
+    ...(args.features ? { features: args.features } : {}),
     dryRun: args.dryRun,
+    log: (line) => console.log(`[agc-resources] ${line}`),
   });
   for (const summary of summaries) {
     console.log(`[agc-resources] ${summary}`);
diff --git a/apps/ai-game-creator-shell/scripts/prepare-bundled-resources.test.mjs b/apps/ai-game-creator-shell/scripts/prepare-bundled-resources.test.mjs
index 19b90da94..2bb540151 100644
--- a/apps/ai-game-creator-shell/scripts/prepare-bundled-resources.test.mjs
+++ b/apps/ai-game-creator-shell/scripts/prepare-bundled-resources.test.mjs
@@ -148,7 +148,7 @@ function buildFixture({ targets = [WINDOWS_TARGET], plugins = true } = {}) {
     WINDOWS_TARGET,
     'debug',
     'deps',
-    'cocos-editor-bridge.dll',
+    'cocos_editor_bridge.dll',
   );
   fs.mkdirSync(path.dirname(cocosDll), { recursive: true });
   fs.writeFileSync(cocosDll, 'cocos bridge payload\n');
@@ -493,7 +493,10 @@ test('declaration drives source lookup and staging units', () => {
       app: fixture.appRoot,
       repo: fixture.repoRoot,
     });
-    assert.match(source, /codex-win32-x64\/vendor\/x86_64-pc-windows-msvc$/);
+    assert.match(
+      source,
+      /codex-win32-x64[\\/]vendor[\\/]x86_64-pc-windows-msvc$/u,
+    );
     assert.equal(pluginDirectories(declaration, fixture.repoRoot).length, 1);
   } finally {
     fixture.cleanup();
diff --git a/apps/ai-game-creator-shell/src-tauri/build.rs b/apps/ai-game-creator-shell/src-tauri/build.rs
index 3138d2279..0e98da9a4 100644
--- a/apps/ai-game-creator-shell/src-tauri/build.rs
+++ b/apps/ai-game-creator-shell/src-tauri/build.rs
@@ -99,6 +99,7 @@ fn validate_prepared_payloads(manifest_dir: &std::path::Path, target: &str) {
     {
         for subdirectory in declared.subdirectories {
             if !package_layout::subdirectory_is_prepared(subdirectory)
+                || !package_layout::subdirectory_applies_to_plugin(subdirectory, &plugin.name)
                 || !package_layout::subdirectory_enabled(
                     subdirectory,
                     target,
diff --git a/apps/ai-game-creator-shell/src-tauri/build_support/package-layout.generated.rs b/apps/ai-game-creator-shell/src-tauri/build_support/package-layout.generated.rs
index 88247e41d..05fae4480 100644
--- a/apps/ai-game-creator-shell/src-tauri/build_support/package-layout.generated.rs
+++ b/apps/ai-game-creator-shell/src-tauri/build_support/package-layout.generated.rs
@@ -77,6 +77,7 @@ pub const PLUGINS: Plugins = Plugins {
     subdirectories: &[
 Subdirectory {
         path: "src",
+        plugin: "",
         origin: "source",
         target_contains: &[],
         targets: &[],
@@ -84,6 +85,7 @@ Subdirectory {
     },
 Subdirectory {
         path: "panels",
+        plugin: "",
         origin: "source",
         target_contains: &[],
         targets: &[],
@@ -91,6 +93,7 @@ Subdirectory {
     },
 Subdirectory {
         path: "skills",
+        plugin: "",
         origin: "source",
         target_contains: &[],
         targets: &[],
@@ -98,13 +101,15 @@ Subdirectory {
     },
 Subdirectory {
         path: "native/payload",
-        origin: "source",
+        plugin: "agc-cocos-editor",
+        origin: "prepared",
         target_contains: &["windows"],
         targets: &[],
         features: &[],
     },
 Subdirectory {
         path: "dotnet/publish/win-x64",
+        plugin: "agc-unity-editor",
         origin: "prepared",
         target_contains: &[],
         targets: &["x86_64-pc-windows-msvc"],
diff --git a/apps/ai-game-creator-shell/src-tauri/build_support/package-layout.json b/apps/ai-game-creator-shell/src-tauri/build_support/package-layout.json
index 8164358ed..1a3d5401b 100644
--- a/apps/ai-game-creator-shell/src-tauri/build_support/package-layout.json
+++ b/apps/ai-game-creator-shell/src-tauri/build_support/package-layout.json
@@ -15,19 +15,27 @@
     "manifestFileName": "manifest.json",
     "packageMetadataFileName": "codex-package.json",
     "noticeFileName": "NOTICE.md",
-    "sourceRoots": ["app", "repo"],
+    "sourceRoots": [
+      "app",
+      "repo"
+    ],
     "sourceRelativePaths": [
       "node_modules/@openai/codex-<platform>/vendor/<target>",
       "node_modules/@openai/codex/node_modules/@openai/codex-<platform>/vendor/<target>"
     ],
     "noticeSources": [
       {
-        "targets": ["aarch64-apple-darwin", "x86_64-apple-darwin"],
+        "targets": [
+          "aarch64-apple-darwin",
+          "x86_64-apple-darwin"
+        ],
         "source": "resources/codex/【声明】Mac内置Codex组件-2026-09-18.md",
         "preserve": false
       },
       {
-        "targets": ["x86_64-pc-windows-msvc"],
+        "targets": [
+          "x86_64-pc-windows-msvc"
+        ],
         "source": "resources/codex/win-x64/NOTICE.md",
         "preserve": true
       }
@@ -36,7 +44,10 @@
       {
         "name": "mac-native",
         "directory": "mac-native",
-        "targets": ["aarch64-apple-darwin", "x86_64-apple-darwin"]
+        "targets": [
+          "aarch64-apple-darwin",
+          "x86_64-apple-darwin"
+        ]
       }
     ],
     "targets": [
@@ -86,18 +97,43 @@
     "sourceDirectory": "plugins",
     "destinationDirectory": "resources/plugins",
     "manifestFileName": "plugin.json",
-    "targetContainsAny": ["windows", "apple-darwin"],
+    "targetContainsAny": [
+      "windows",
+      "apple-darwin"
+    ],
     "subdirectories": [
-      { "path": "src", "origin": "source" },
-      { "path": "panels", "origin": "source" },
-      { "path": "skills", "origin": "source" },
-      { "path": "native/payload", "origin": "source", "targetContains": ["windows"] },
+      {
+        "path": "src",
+        "origin": "source"
+      },
+      {
+        "path": "panels",
+        "origin": "source"
+      },
+      {
+        "path": "skills",
+        "origin": "source"
+      },
+      {
+        "path": "native/payload",
+        "origin": "prepared",
+        "targetContains": [
+          "windows"
+        ],
+        "plugin": "agc-cocos-editor",
+        "prepare": "cocos-bridge-build"
+      },
       {
         "path": "dotnet/publish/win-x64",
         "origin": "prepared",
         "prepare": "unity-helper-publish",
-        "targets": ["x86_64-pc-windows-msvc"],
-        "features": ["unity-editor-execute"]
+        "targets": [
+          "x86_64-pc-windows-msvc"
+        ],
+        "features": [
+          "unity-editor-execute"
+        ],
+        "plugin": "agc-unity-editor"
       }
     ],
     "libraryStaging": [
@@ -105,8 +141,12 @@
         "plugin": "agc-godot-editor",
         "sourceSubdirectory": "native/gdextension",
         "prepare": "godot-extension-build",
-        "targets": ["x86_64-pc-windows-msvc"],
-        "features": ["godot-editor-execute"],
+        "targets": [
+          "x86_64-pc-windows-msvc"
+        ],
+        "features": [
+          "godot-editor-execute"
+        ],
         "layout": "godot-bundle",
         "files": [
           "bin/win-x64/agc_godot_editor.dll",
@@ -120,10 +160,15 @@
       {
         "plugin": "agc-cocos-editor",
         "prepare": "cocos-bridge-build",
-        "sourceFileName": "cocos-editor-bridge.dll",
+        "sourceFileName": "cocos_editor_bridge.dll",
         "destinationSubdirectory": "native/payload",
-        "targets": ["x86_64-pc-windows-msvc"],
-        "features": ["cocos-editor-injection"]
+        "targets": [
+          "x86_64-pc-windows-msvc"
+        ],
+        "features": [
+          "cocos-editor-injection"
+        ],
+        "destinationFileName": "cocos-editor-bridge.dll"
       }
     ],
     "prepareSteps": [
@@ -133,8 +178,15 @@
         "workingDirectory": "plugins/agc-unity-editor/dotnet",
         "scriptFileName": "build.ps1",
         "fingerprint": {
-          "roots": ["."],
-          "excludeDirectoryNames": ["bin", "obj", "publish", "native-build"],
+          "roots": [
+            "."
+          ],
+          "excludeDirectoryNames": [
+            "bin",
+            "obj",
+            "publish",
+            "native-build"
+          ],
           "stampRelativePath": "publish/win-x64/.agc-source.sha256"
         },
         "requiredOutputs": [
@@ -155,25 +207,49 @@
         "kind": "powershell",
         "workingDirectory": "plugins/agc-godot-editor/native/gdextension",
         "scriptFileName": "build.ps1",
-        "removeEnvironment": ["PSModulePath"],
+        "removeEnvironment": [
+          "PSModulePath"
+        ],
         "requiredOutputs": [
           "plugins/agc-godot-editor/native/gdextension/bin/win-x64/agc_godot_editor.dll",
           "plugins/agc-godot-editor/native/gdextension/bin/win-x64/metadata.json",
           "plugins/agc-godot-editor/native/gdextension/vendor/LICENSE.txt",
           "plugins/agc-godot-editor/native/gdextension/vendor/provenance.json"
-        ]
+        ],
+        "fingerprint": {
+          "roots": [
+            "."
+          ],
+          "excludeDirectoryNames": [
+            "bin",
+            ".build",
+            "native-build"
+          ],
+          "stampRelativePath": "bin/win-x64/.agc-source.sha256"
+        }
       },
       {
         "name": "cocos-bridge-build",
         "kind": "cargo",
         "packageDirectory": "plugins/agc-cocos-editor/native/cocos-editor-bridge",
-        "features": ["windows-injection"],
+        "features": [
+          "windows-injection"
+        ],
         "requiredOutputs": []
       }
     ],
-    "skipDirectoryNames": ["target", "node_modules"],
-    "skipDirectoryNamePrefixes": ["."],
-    "skipFileNamePrefixes": ["."],
-    "skipFileNameFragments": [".test."]
+    "skipDirectoryNames": [
+      "target",
+      "node_modules"
+    ],
+    "skipDirectoryNamePrefixes": [
+      "."
+    ],
+    "skipFileNamePrefixes": [
+      "."
+    ],
+    "skipFileNameFragments": [
+      ".test."
+    ]
   }
 }
diff --git a/apps/ai-game-creator-shell/src-tauri/build_support/package_layout.rs b/apps/ai-game-creator-shell/src-tauri/build_support/package_layout.rs
index e27c8bedd..e75f787ab 100644
--- a/apps/ai-game-creator-shell/src-tauri/build_support/package_layout.rs
+++ b/apps/ai-game-creator-shell/src-tauri/build_support/package_layout.rs
@@ -49,6 +49,8 @@ pub struct PackageMetadata {
 #[derive(Debug)]
 pub struct Subdirectory {
     pub path: &'static str,
+    /// 该子目录归属的插件名；空串表示适用于所有插件。
+    pub plugin: &'static str,
     /// `source`：由声明与仓库源码就能生成（准备步骤负责）；`build`：构建期工具链产出（构建脚本负责）。
     pub origin: &'static str,
     pub target_contains: &'static [&'static str],
@@ -171,6 +173,11 @@ pub fn plugin_staging_applies(target: &str) -> bool {
         .any(|needle| target.contains(needle))
 }
 
+/// 子目录是否归属该插件（空串表示通用）。
+pub fn subdirectory_applies_to_plugin(subdirectory: &Subdirectory, plugin_name: &str) -> bool {
+    subdirectory.plugin.is_empty() || subdirectory.plugin == plugin_name
+}
+
 /// 子目录在当前目标与已启用 feature 下是否随包。
 pub fn subdirectory_enabled(
     subdirectory: &Subdirectory,
diff --git a/docs/technical/【技术方案】AGC随包资源staging归位-2026-09-26.md b/docs/technical/【技术方案】AGC随包资源staging归位-2026-09-26.md
index 245d7cfce..2f5d10de7 100644
--- a/docs/technical/【技术方案】AGC随包资源staging归位-2026-09-26.md
+++ b/docs/technical/【技术方案】AGC随包资源staging归位-2026-09-26.md
@@ -156,7 +156,7 @@ build script 只写 `OUT_DIR`/`target`；随包资源是它的输入。凡需要
 
 形态选择**混合**：生成归 Node（复用 `stage-node-runtime.mjs` / `prepare-macos-codex.mjs` 的下载、`integrity`、临时目录 + rename 原子替换范式），声明与校验归 Rust（复用 `codex_bundle.rs` / `godot_bundle.rs` 的布局与摘要校验，运行期模块不改公开接口）。理由：Rust 侧没有下载与 lockfile 解析能力（`[build-dependencies]` 无 HTTP 客户端），Node 侧没有 staging 能力；任选单一语言都要迁移另一侧既有资产。Rust 侧刻意不解析 JSON：声明经生成器变成编译期常量，避免运行期解析与生命周期妥协，也让 `&'static` 布局表与现有调用点保持不变。
 
-准备步骤的验证入口：`AGC_SKIP_RESOURCE_STAGING=1 cargo build/check …` 只跑只读校验、跳过写入分支，用于在既有产物上单独验证校验路径。
+构建脚本自 M3 起只做只读校验（写入分支与 `AGC_SKIP_RESOURCE_STAGING` 开关一并删除），`cargo build/check` 本身就是对既有产物的校验。
 
 ### 4.9 M2/M3 实况：构建期写入边界