diff --git a/refactor/README.md b/refactor/README.md
index cc8568b61..5f998865b 100644
--- a/refactor/README.md
+++ b/refactor/README.md
@@ -42,6 +42,7 @@
 | [第三方来源清单](third-party.json) | 依赖解析、vendor 文件指纹、SDK/CDN 与许可来源缺口 |
 | [消费者与真实环境矩阵](environment-matrix.md) | 22 包的版本依据、能力/设备/样本、现有证据、验证任务及发布影响 |
 | [类型检查与迁移入口](typechecking.md) | 根/分包配置、当前/旧编译器、严格正反例和历史声明错误 |
+| [JS/TS 构建与开发](build-development.md) | 非交互选包、开发重建、资源夹具和 AMD 全局修复 |
 
 ## 维护规则
 
diff --git a/refactor/baselines/build-validation.json b/refactor/baselines/build-validation.json
new file mode 100644
index 000000000..6820ef092
--- /dev/null
+++ b/refactor/baselines/build-validation.json
@@ -0,0 +1,615 @@
+{
+  "schemaVersion": 1,
+  "task": "ENG-06",
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+  "capturedAt": "2026-09-10T13:46:01.009Z",
+  "runtime": {
+    "node": "24.21.0",
+    "yarn": "1.22.22",
+    "vite": "7.3.6"
+  },
+  "scope": "Build and entrypoint validation, not package feature/device or npm publication approval",
+  "sourceHashAlgorithm": "sha256-lf",
+  "sources": {
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+    "scripts/rebuild.js": "56b90edf29597550476c9d2c9ce3d79720d3bf421c4ee9e6a6890b77cca9615a",
+    "scripts/utils.js": "4bf07ce5a1029df6360e402d128233e2ce9873316270473f6c5f23d88533a1ec",
+    "refactor/fixtures/build/browser.html": "f23cf184f9280b13e6fc49ed81182030f56072f0abae0027592ba460434046ca",
+    "refactor/fixtures/build/icon.svg": "794225a0e8d9464f748ece35b6fd3b49cf6175088881c4ce1ddd4c0c49ccc759",
+    "refactor/fixtures/build/index.ts": "926ceac2f574f059ed43ecf734129111766023f1ec017d634dc750c2d5b37e84",
+    "refactor/fixtures/build/shared.js": "d7b9fb6cdead2fb729501d24b6dd6c5e8a801b95e665069929e064f34e418056",
+    "refactor/fixtures/build/style.less": "d706fd1267fac56cb207d41d1efe2b19c5b200c1ad346d9f11a9b4e1fad2d5b0",
+    "refactor/fixtures/build/worker.ts": "2c98d00f6cc5efa557839b98fea27dc9004295910c52ae22f60437a2be7dd126"
+  },
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+      },
+      {
+        "file": "packages/artplayer-plugin-vtt-thumbnail/dist/artplayer-plugin-vtt-thumbnail.mjs",
+        "before": "413af5e4f28d47c659521332042a8347da357b17af39cf08c89ce3347897c618",
+        "after": "413af5e4f28d47c659521332042a8347da357b17af39cf08c89ce3347897c618"
+      },
+      {
+        "file": "packages/artplayer-proxy-canvas/dist/artplayer-proxy-canvas.js",
+        "before": "ef489570e13f402f1a60eb256ce3900a0021a3d05699c2ba15adfaaeff184d4c",
+        "after": "b93386ae0d8b6a69c2b30a0e479a20a58e037b1068b28cf4a444b37b66495adb"
+      },
+      {
+        "file": "packages/artplayer-proxy-canvas/dist/artplayer-proxy-canvas.legacy.js",
+        "before": "7d25f21170c06d067aeaa1c8e79b15f2c0130a27cff1b410532d6c4ef4d2d45f",
+        "after": "69341bcbd0916273cae0366d5590ac9d8607b22718ed97a84e844585021e1cd9"
+      },
+      {
+        "file": "packages/artplayer-proxy-canvas/dist/artplayer-proxy-canvas.mjs",
+        "before": "4bb4a881787770093652a3262fc214a2529a1c514ef49affaf152b8abf0f4dc6",
+        "after": "4bb4a881787770093652a3262fc214a2529a1c514ef49affaf152b8abf0f4dc6"
+      },
+      {
+        "file": "packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.js",
+        "before": "376a0fffbac289e71717795532d6fce9f3531f87cc025dfd7694952d44479037",
+        "after": "988ed40e19294345d25347ad37681f329c1580ae2f2c1157f6d5a9589fdfbd7c"
+      },
+      {
+        "file": "packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.legacy.js",
+        "before": "8a91401e634fa4fe75ea68d6dd17e0793948584a67bcfab8edfe0c574920b0e7",
+        "after": "5f30c1bdcf5bca8f314b119b3e349254d5aa164d7a7cba9b53b5f6e09cd56fcd"
+      },
+      {
+        "file": "packages/artplayer-proxy-mediabunny/dist/artplayer-proxy-mediabunny.mjs",
+        "before": "5b151b82b4054706d3c7c5c610ffd8ce9f39ef56d8393867b524891331fef8c0",
+        "after": "5b151b82b4054706d3c7c5c610ffd8ce9f39ef56d8393867b524891331fef8c0"
+      },
+      {
+        "file": "packages/artplayer-tool-iframe/dist/artplayer-tool-iframe.js",
+        "before": "2ec257c8055a9448d12af3fecf1fae8ba58c06f47e85072d02c386cd258b0c86",
+        "after": "9419306aadf112689f98db679750afb84fd32cf4e0fbee328bd5bd3126872639"
+      },
+      {
+        "file": "packages/artplayer-tool-iframe/dist/artplayer-tool-iframe.legacy.js",
+        "before": "c0755d79f316cda71f045da86749648f95faf47c09180d525fb04bb753576d5f",
+        "after": "778530d4ccf9f7d9abb5fcf0ae6cbd68044220eab27291b74eca6d5a168c625c"
+      },
+      {
+        "file": "packages/artplayer-tool-iframe/dist/artplayer-tool-iframe.mjs",
+        "before": "cbcdb0516dd5f17ca2572a6b3e363ea63b0cfd9733f3e47689c02088f23f29b9",
+        "after": "cbcdb0516dd5f17ca2572a6b3e363ea63b0cfd9733f3e47689c02088f23f29b9"
+      },
+      {
+        "file": "packages/artplayer-tool-thumbnail/dist/artplayer-tool-thumbnail.js",
+        "before": "f77419cc62eeaa45c0413f4b04d169f78178fd539443cbf7b1e5db4ad4c95c98",
+        "after": "f77419cc62eeaa45c0413f4b04d169f78178fd539443cbf7b1e5db4ad4c95c98"
+      },
+      {
+        "file": "packages/artplayer-tool-thumbnail/dist/artplayer-tool-thumbnail.legacy.js",
+        "before": "f77419cc62eeaa45c0413f4b04d169f78178fd539443cbf7b1e5db4ad4c95c98",
+        "after": "f77419cc62eeaa45c0413f4b04d169f78178fd539443cbf7b1e5db4ad4c95c98"
+      },
+      {
+        "file": "packages/artplayer-tool-thumbnail/dist/artplayer-tool-thumbnail.mjs",
+        "before": "4d46df8cccdc92d18efc6f12abedf85e8881737023f4ead28697c8b1e85eead1",
+        "after": "4d46df8cccdc92d18efc6f12abedf85e8881737023f4ead28697c8b1e85eead1"
+      }
+    ],
+    "i18n": {
+      "files": 22,
+      "identicalToCheckout": true
+    }
+  },
+  "browser": {
+    "surface": "Codex in-app browser",
+    "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36",
+    "evidenceMethod": "Observed via real UI actions and DOM snapshots; results transcribed into this report",
+    "amd": {
+      "repeatedRuns": 3,
+      "results": [
+        {
+          "name": "artplayer",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-ads",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-ads",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-ambilight",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-ambilight",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-asr",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-asr",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-audio-track",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-audio-track",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-auto-thumbnail",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-auto-thumbnail",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-chapter",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-chapter",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-chromecast",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-chromecast",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-danmuku",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-danmuku",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-danmuku-mask",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-danmuku-mask",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-dash-control",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-dash-control",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-document-pip",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-document-pip",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-hls-control",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-hls-control",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-jassub",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-jassub",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-multiple-subtitles",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-multiple-subtitles",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-vast",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-vast",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-vtt-thumbnail",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-plugin-vtt-thumbnail",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-proxy-canvas",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-proxy-canvas",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-proxy-mediabunny",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-proxy-mediabunny",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-tool-iframe",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-tool-iframe",
+          "extension": ".legacy.js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-tool-thumbnail",
+          "extension": ".js",
+          "passed": true
+        },
+        {
+          "name": "artplayer-tool-thumbnail",
+          "extension": ".legacy.js",
+          "passed": true
+        }
+      ]
+    },
+    "worker": {
+      "passed": true,
+      "reply": 42,
+      "css": true,
+      "svg": true,
+      "initialValue": 42,
+      "afterJsDependencyChange": 43,
+      "afterSyntaxErrorRecovery": 42
+    },
+    "existingDemo": {
+      "url": "http://localhost:8082/?libs=./uncompiled/artplayer/index.js&example=index",
+      "script": "./uncompiled/artplayer/index.js",
+      "media": "http://localhost:8082/assets/sample/video.mp4",
+      "width": 640,
+      "duration": 90.046009,
+      "observedPlayingTime": 13.678864,
+      "pausedAfterClick": true,
+      "monacoLoaded": true,
+      "existingAdvertisingScriptsPresent": true
+    },
+    "finalErrorsAndWarnings": []
+  },
+  "cli": {
+    "interactiveBuild": "Real TTY prompts selection + Enter built artplayer all 3 formats",
+    "namedDev": "artplayer and TS build probe on 8082 with --no-open",
+    "invalidInput": "Unknown package, no TTY arguments and ambiguous JS/TS entry rejected before dist cleanup"
+  },
+  "tests": {
+    "ciCheck": "passed",
+    "node": 21,
+    "baseline": 22,
+    "failed": 0,
+    "skipped": 0
+  },
+  "limitations": [
+    "No original dist files rewritten in main checkout; candidate artifacts produced in isolated checkout",
+    "Node VM exploratory import errors in DOM-dependent bundles were resolved by using the real browser, not by declaring VM support",
+    "Development watch covers selected package src; external files still require restart",
+    "Production package TypeScript migration remains zero"
+  ]
+}
diff --git a/refactor/build-development.md b/refactor/build-development.md
new file mode 100644
index 000000000..7fa347926
--- /dev/null
+++ b/refactor/build-development.md
@@ -0,0 +1,51 @@
+# 已实现的 JS/TS 构建与开发入口
+
+ENG-06 保留原来的 Vite 7.3.6、Terser、三种库产物及路径，增加选包参数和 TS 入口；未切换 bundler 或运行时依赖。固定工具链仍为 Node 24.21.0 / Yarn 1.22.22。
+
+```sh
+yarn build                              # TTY 中原交互选择
+yarn build artplayer                    # 一个包，无交互
+yarn build artplayer artplayer-plugin-chapter
+yarn build all                          # 全部 21 库，文档站仍用自身 build
+yarn dev artplayer --no-open             # 8082，方便内置浏览器/自动化
+yarn dev                                # 原交互选择并打开浏览器
+yarn build --help
+yarn dev --help
+```
+
+JS 包使用 src/index.js，TS 包使用 src/index.ts；必须恰有一个入口，同时存在时明确报错，避免残留 JS 遮盖新 TS。没有 TTY 且没有包参数时退出失败，不在 CI 中等待选择。未知名称、路径字符串、错误 all 组合在清理产物或启动服务前拒绝。dev 只接受一个包；build 可按提供顺序构建多个包，重复名称去重。
+
+## 实现地图
+
+| 文件 | 职责与维护点 |
+| --- | --- |
+| scripts/projects.js | 库包清单、CLI 选包、旧 prompts 入口、JS/TS 入口唯一性；utils.js 继续转出 getProjects，保留原脚本调用 |
+| scripts/build.js | 三格式顺序构建、受限 dist 清理、banner、复制 docs/compiled；main=.js/es2020、legacy=.legacy.js/es2015、ESM=.mjs/es2020 |
+| scripts/dev.js | 8082 服务、docs/uncompiled/包名/index.js、首次成功打开浏览器、源目录监听及错误后的继续开发 |
+| scripts/rebuild.js | 合并构建期间的通知并串行重建，避免多个构建同时清空同一输出目录；失败后下一次请求仍可运行 |
+| scripts/utils.js | 共享 Vite 资源/worker/output 配置与历史全局名称；AMD 补丁依据实际 UMD 全局参数，不假定压缩变量名 |
+| types/assets.d.ts | Less inline、SVG URL 与 SVG raw 的字符串类型；特定 worker 类型边界随拥有该 worker 的包配置 |
+| refactor/fixtures/build/ | 同时使用 TS、相邻 JS、Less、SVG raw、TS inline worker 的独立构建夹具；不属于发布包 |
+| refactor/scripts/build.test.mjs | 真实 CLI 产物、错误不误清理、CJS/global/AMD/ESM、队列错误恢复；浏览器 worker/全库 AMD 使用 browser.html |
+
+Vite 支持 TS 转译，但不替代类型检查，源码检查继续运行 yarn typecheck。[Vite 7 的 TS 说明](https://v7.vite.dev/guide/features#typescript) 对此有明确区分。此任务没有将生产 JS 改名为 TS，也没有生成新公开声明；ENG-07 与包迁移任务继续负责声明和 tarball 验收。
+
+dev 仍监听所选包的 src 目录，包外共享文件/tsconfig/依赖变化需要重启；不宣称已做完整依赖图热更新。错误会打印并保留监听，修复后重建；--no-open 仅禁止自动启动外部浏览器，访问地址不变。实际验证中源码修改和错误恢复后手动刷新页面确认了新结果。
+
+## 本次发现的 AMD 构建缺陷
+
+BUILD-AMD-01：旧插件在压缩 UMD 中把参数 t 写死为全局对象。但构建夹具的包装为 function(e,t)，此时 t 是工厂；旧补丁生成 t.artplayerPluginBuildProbe=t()，AMD 返回虽可用，全局导出却不存在。补丁现在读取外层包装的第一个参数。只有实际 outputOptions.format=umd 时处理，避免将内联 worker 的 ES 输出当作 UMD。
+
+不识别的 UMD/AMD 包装现在明确构建失败，避免升级打包工具后悄悄丢失全局接口。新夹具回归要求 AMD 工厂返回与对应全局为同一对象。两轮 21 库/63 产物比较：39 完全相同，24 个 UMD/legacy 只修正上述接收者，逆向替换该位置即可还原旧 SHA-256。全部 42 个 UMD/legacy 在内置浏览器中验证 AMD 工厂一次执行、返回与全局一致。
+
+这修复的是构建路径。旧 npm 内容不变，根目录原有 dist 未手工改写；本次在隔离 checkout 中通过正常脚本生成候选，发布阶段必须用新工具重新生成并验证实际要发布的产物。AMD 入口通过不等于广告、模型、Cast、codec 等完整功能已验证。
+
+## 重跑浏览器夹具
+
+在用于验证的隔离 checkout 正常构建 21 库；复制 refactor/fixtures/build 下内容到临时包的 src，包名 artplayer-plugin-build-probe、版本 1.0.0。该包仅用于测试，不添加到真实 workspace 范围或发布列表。将 browser.html 复制到 docs/build-probes.html，将实际 21 库包名 JSON 数组写到 docs/build-packages.json。
+
+运行 yarn dev artplayer-plugin-build-probe --no-open，打开 http://localhost:8082/build-probes.html。两个按钮分别验证真实 worker 往返及 42 个 AMD/global 入口，DOM 中的 JSON 是实际报告；每个 iframe 在加载后移除，worker 在结束后 terminate。Node 测试只能检查 worker 工厂存在，不能用它代替这次真实往返。
+
+首页现有示例另用 `http://localhost:8082/?libs=./uncompiled/artplayer/index.js&example=index` 验证 JS 开发构建、Monaco 加载、媒体 metadata、播放和暂停；该首页包含既有广告脚本，本任务没有改变它们。完整编辑器功能、移动与 SDK 用例仍由 SITE/EX/包集成任务负责。
+
+本次证据见 [构建与浏览器记录](baselines/build-validation.json) 和 [变更记录](changes/2026-09-10-ENG-06-build-development.md)。测试数量与入口通过不代表生产源码迁移完成。
diff --git a/refactor/changes/2026-09-10-ENG-06-build-development.md b/refactor/changes/2026-09-10-ENG-06-build-development.md
new file mode 100644
index 000000000..672f7d172
--- /dev/null
+++ b/refactor/changes/2026-09-10-ENG-06-build-development.md
@@ -0,0 +1,15 @@
+# ENG-06：JS/TS 构建与非交互开发
+
+日期 2026-09-10；起点 77148242；分支 codex/compatible-modernization。
+
+build/dev 已共用入口解析与选包，保留交互、输出路径、三格式和目标语法，新增包参数与 dev --no-open。选包/入口错误先失败，dev 重建串行化并可从源码错误恢复。工具职责与完整运行步骤见 [维护说明](../build-development.md)。
+
+新增真实构建夹具和三个 Node 测试，覆盖 TS+JS+Less+SVG+inline worker、三格式消费者、错误输入不清理已有产物、合并通知和失败重试。夹具复现旧 AMD 补丁将工厂参数误当全局的问题 BUILD-AMD-01；现按包装实际参数修复，未知格式拒绝构建。现有 API/global/CJS/ESM 路径未变，修正范围仅原先丢失的 AMD 全局赋值。
+
+隔离 checkout 使用相同依赖和正常脚本完成改动前后各 21 库/63 产物构建。39 字节相同；24 只改 AMD 接收者，逆变换后的全部哈希回到旧结果。内置浏览器 Chrome/152 UA 验证 42 个实际 UMD/legacy AMD 入口，全部通过；TS 夹具的 Less/SVG、真实 worker 41->42 往返通过；修改 JS 依赖后值由 42->43，故意破坏 TS 后修复可重新构建并恢复 42。
+
+现有首页的真实新 JS dev 构建、Monaco 加载、本地 MP4 metadata（640 宽、约 90.046 秒）、播放推进（13.678864 秒）及暂停已验。最终浏览器 error/warn 为空。开始时旧标签失效和 inventory 查询失败，直接新建内置标签后恢复；没有依赖 Chrome 连接。初始 Node VM 全库导入缺少部分 DOM/global API 的 8 个错误不作为包失败或通过，已改在实际浏览器检查全部 42 项。
+
+完整 ci:check 通过 lint、类型及 21 Node +22 基线测试，共 43 项；原交互选择在真实 TTY 按 Enter 构建核心成功。最终按多个包参数重建的 63 产物与已验证候选全同；另生成的 22 个 i18n 文件与此前 checkout 字节相同。检查结果和产物指纹保存于 [验证数据](../baselines/build-validation.json)。未更改生产包版本、公开声明或根分发产物；没有把构建验证扩写为完整 SDK/真机或 npm 发布验收。
+
+独立提交 ENG-06，可单独撤销工具改动；后续用新工具生成候选，禁止拿本轮验证替代实际发布 tarball。下一项 ENG-03 统一已有公共行为/单元夹具，再接 ENG-05 浏览器自动化和 chapter 的特有行为/源码迁移。
diff --git a/refactor/fixtures/build/browser.html b/refactor/fixtures/build/browser.html
new file mode 100644
index 000000000..37eeadc86
--- /dev/null
+++ b/refactor/fixtures/build/browser.html
@@ -0,0 +1,66 @@
+<!doctype html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<title>Build compatibility probes</title>
+</head>
+<body>
+<button id="worker">Run TypeScript worker probe</button>
+<button id="amd">Run library AMD probes</button>
+<pre id="result">Ready</pre>
+<script src="/uncompiled/artplayer-plugin-build-probe/index.js"></script>
+<script>
+  const result = document.querySelector('#result');
+  document.querySelector('#worker').onclick = async () => {
+    let worker;
+    try {
+      const probe = artplayerPluginBuildProbe({ label: 'browser' });
+      worker = probe.createWorker();
+      const reply = await new Promise((resolve, reject) => {
+        const timeout = setTimeout(() => reject(new Error('Worker response timed out')), 5000);
+        worker.onmessage = event => { clearTimeout(timeout); resolve(event.data); };
+        worker.onerror = event => { clearTimeout(timeout); reject(new Error(event.message)); };
+        worker.postMessage(41);
+      });
+      if (reply !== 42 || !probe.css.includes('#123abc') || !probe.svg.includes('<svg')) throw new Error('Resource result mismatch');
+      result.textContent = JSON.stringify({ status: 'passed', userAgent: navigator.userAgent, value: probe.value, label: probe.label, workerReply: reply, css: true, svg: true }, null, 2);
+    } catch (error) { result.textContent = JSON.stringify({ status: 'failed', error: String(error) }); }
+    finally { if (worker) worker.terminate(); }
+  };
+  document.querySelector('#amd').onclick = async () => {
+    const reports = [];
+    try {
+      const packages = await (await fetch('/build-packages.json')).json();
+      if (packages.length !== 21 || new Set(packages).size !== 21 || !packages.includes('artplayer')) throw new Error('Incomplete library inventory');
+      for (const name of packages) {
+        for (const extension of ['.js', '.legacy.js']) {
+          const frame = document.createElement('iframe');
+          frame.hidden = true;
+          document.body.append(frame);
+          try {
+            const scope = frame.contentWindow;
+            let exported;
+            let calls = 0;
+            scope.define = Object.assign(factory => { calls++; exported = factory(); }, { amd: true });
+            const script = frame.contentDocument.createElement('script');
+            const file = `/compiled/${name}${extension}`;
+            await new Promise((resolve, reject) => {
+              const timeout = setTimeout(() => reject(new Error(`Load timeout: ${file}`)), 10000);
+              script.onload = () => { clearTimeout(timeout); resolve(); };
+              script.onerror = () => { clearTimeout(timeout); reject(new Error(`Load failed: ${file}`)); };
+              script.src = file;
+              frame.contentDocument.body.append(script);
+            });
+            const global = name === 'artplayer' || name.startsWith('artplayer-tool-')
+              ? name.replace(/(^|-)([a-z])/g, (_, prefix, letter) => letter.toUpperCase())
+              : name.replace(/-([a-z])/g, (_, letter) => letter.toUpperCase());
+            reports.push({ name, extension, passed: calls === 1 && exported !== undefined && exported === scope[global] });
+          } finally { frame.remove(); }
+        }
+      }
+      result.textContent = JSON.stringify({ status: reports.every(item => item.passed) ? 'passed' : 'failed', userAgent: navigator.userAgent, reports }, null, 2);
+    } catch (error) { result.textContent = JSON.stringify({ status: 'failed', reports, error: String(error) }); }
+  };
+</script>
+</body>
+</html>
diff --git a/refactor/fixtures/build/icon.svg b/refactor/fixtures/build/icon.svg
new file mode 100644
index 000000000..a544ea2a3
--- /dev/null
+++ b/refactor/fixtures/build/icon.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 10 10"><path d="M0 0h10v10H0z"/></svg>
diff --git a/refactor/fixtures/build/index.ts b/refactor/fixtures/build/index.ts
new file mode 100644
index 000000000..661901549
--- /dev/null
+++ b/refactor/fixtures/build/index.ts
@@ -0,0 +1,18 @@
+import css from './style.less?inline'
+import svg from './icon.svg?raw'
+import InlineWorker from './worker.ts?worker&inline'
+import { add } from './shared.js'
+
+interface Options {
+  label?: string
+}
+
+export default function buildProbe(options: Options = {}) {
+  return {
+    label: options.label ?? 'default',
+    value: add(20, 22),
+    css,
+    svg,
+    createWorker: () => new InlineWorker(),
+  }
+}
diff --git a/refactor/fixtures/build/shared.js b/refactor/fixtures/build/shared.js
new file mode 100644
index 000000000..fe695eb71
--- /dev/null
+++ b/refactor/fixtures/build/shared.js
@@ -0,0 +1 @@
+export const add = (left, right) => left + right
diff --git a/refactor/fixtures/build/style.less b/refactor/fixtures/build/style.less
new file mode 100644
index 000000000..320d60c5a
--- /dev/null
+++ b/refactor/fixtures/build/style.less
@@ -0,0 +1,2 @@
+@accent: #123abc;
+.build-probe { color: @accent; }
diff --git a/refactor/fixtures/build/worker.ts b/refactor/fixtures/build/worker.ts
new file mode 100644
index 000000000..501e3cb10
--- /dev/null
+++ b/refactor/fixtures/build/worker.ts
@@ -0,0 +1,3 @@
+self.onmessage = (event: MessageEvent<number>) => {
+  self.postMessage(event.data + 1)
+}
diff --git a/refactor/plan.md b/refactor/plan.md
index ad38a68fb..dfbad0b64 100644
--- a/refactor/plan.md
+++ b/refactor/plan.md
@@ -4,7 +4,7 @@
 
 基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 214 项，范围 22 个包及工作区/示例。
 
-状态：todo 188 / doing 0 / blocked 0 / done 26 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 187 / doing 0 / blocked 0 / done 27 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
 
 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。
 
@@ -79,7 +79,7 @@
 | ENG-03 | workspace<br>建立公共行为与单元测试入口 | ENG-02, BASE-03 | 保留现有 node:test，测试目录/夹具/统一入口 | 已有 19 项回归保留，旧版与候选可用同一夹具运行 | M | todo |
 | ENG-04 | workspace<br>建立类型测试基础 | ENG-02, BASE-05 | 根与分包 tsconfig、显式 TS 依赖、正反例测试 | 核心/试点与迁移模块严格检查，未迁移第三方/包历史问题独立台账；明确最低/当前 TS 和各环境类型；复用 BASE-05 的四种消费模式，不以 skipLibCheck 掩盖 BASE-TYPE-01/03 | M | done |
 | ENG-05 | workspace<br>建立真实浏览器测试服务 | ENG-03, BASE-04, BASE-08 | Playwright projects、本地 Range/失败媒体服务；复用 docs 页面/样本的状态隔离、错误采集与候选资源映射 | Chromium/Firefox/WebKit 的基础播放 smoke 和报告可执行；以媒体状态断言判定通过，区分轻量用例与真实编辑器交互 | M | todo |
-| ENG-06 | workspace<br>支持按包非交互与 JS/TS 构建 | ENG-02, BASE-05 | build/dev 入口解析、指定包参数、原交互保留 | 三种产物、Less/SVG/worker 和本地 8082 demo 正常；保持 BASE-05 的 AMD 同时写入全局行为及 i18n/legacy 入口 | H | todo |
+| ENG-06 | workspace<br>支持按包非交互与 JS/TS 构建 | ENG-02, BASE-05 | build/dev 入口解析、指定包参数、原交互保留 | 三种产物、Less/SVG/worker 和本地 8082 demo 正常；保持 BASE-05 的 AMD 同时写入全局行为及 i18n/legacy 入口 | H | done |
 | ENG-07 | workspace<br>建立 tarball 消费与产物检查 | ENG-04, ENG-06 | 隔离 npm 消费 fixtures、API/声明/入口差分 | 不借 workspace 源码通过，能识别缺文件与默认导出变化 | H | todo |
 | ENG-08 | workspace<br>增加覆盖率、资源与性能报告 | ENG-03, ENG-05, BASE-06 | 覆盖率基线、资源清理断言、性能报告与阈值 | 关键生命周期分支有门槛，报告不靠无意义断言堆数量；将 BASE-06 的同环境多组配对、计时/压缩审查阈值与资源异常分开接入候选，不把历史现象冻结成正常要求 | M | todo |
 | ENG-09 | workspace<br>建立全包依赖影响和文档检查 | ENG-07, DOC-04 | 共享核心/构建影响映射、文档及每任务完成提交的 Git 审计接入；契约-支持版本-测试 ID-命令-候选/报告-任务的覆盖索引 | 核心变化触发必需生态检查；原有 DOC-01 至 04 基线例外明确，后续 done 任务不能缺失独立 commit；计划/已执行/缺证据分开，识别缺少验证归属的公开契约 | M | todo |
@@ -429,3 +429,4 @@
 - ENG-PM-01: [记录](changes/2026-09-10-ENG-PM-01-yarn-toolchain.md) [记录](baselines/yarn-validation.json)
 - ENG-02: [记录](changes/2026-09-10-ENG-02-readonly-ci.md) [记录](baselines/ci-validation.json)
 - ENG-04: [记录](changes/2026-09-10-ENG-04-typechecking.md) [记录](typechecking.md)
+- ENG-06: [记录](changes/2026-09-10-ENG-06-build-development.md) [记录](build-development.md) [记录](baselines/build-validation.json)
diff --git a/refactor/progress.md b/refactor/progress.md
index 26e1995ef..67dbc29fc 100644
--- a/refactor/progress.md
+++ b/refactor/progress.md
@@ -1,5 +1,11 @@
 # 进度与证据
 
+## 当前实施：ENG-06 JS/TS 构建与开发完成
+
+正常 build/dev 支持指定包与唯一 JS/TS 入口，dev 可禁止自动打开浏览器并串行重建。构建夹具复现并修复 AMD 全局参数错误；63 产物中 39 字节相同、24 仅该修复；内置浏览器 42 个 AMD 入口、TS worker/资源及首页真实播放通过。见 [ENG-06](changes/2026-09-10-ENG-06-build-development.md)。
+
+当前 214 项，27 完成、187 待办。43 项 Node/基线测试通过，生产源码 TS 迁移仍为零；工具链代码已有实际修改。ENG-04 提交 77148242，本任务独立提交。下一项 ENG-03 公共行为/单元入口，再接 ENG-05 浏览器自动化与 chapter 特有测试和源码迁移。
+
 ## 当前实施：ENG-04 类型检查基础完成
 
 根/核心/chapter 配置和 yarn typecheck 已接入 CI。TS 5.9.3 三种消费模式与 TS 4.3.5 旧解析通过，NodeNext ESM 七项历史诊断单独记录；40 项 Node/基线测试通过。见 [ENG-04](changes/2026-09-10-ENG-04-typechecking.md)。当前 214 项，26 完成、188 待办；工具代码已有实施，生产源码 TS 迁移仍为零。BASE-08 提交 09902b8b，本任务独立提交。下一项 ENG-06 构建 TS 与非交互入口，再完成测试服务和 chapter 源码迁移。
diff --git a/refactor/risk-guide.md b/refactor/risk-guide.md
index ff1da5dee..e66890c55 100644
--- a/refactor/risk-guide.md
+++ b/refactor/risk-guide.md
@@ -4,7 +4,7 @@ BASE-07 将先前基线发现和第三方来源缺口纳入同一份责任台账
 
 ## 如何读取状态
 
-39 项目前均为 open。reproduced 表示已保存复现结果；source-observed 表示在源码、声明或产物中看到事实；unverified 表示来源、环境或行为仍需取证。证据等级与处理状态互相独立，不能把 39 项全部称为缺陷，也不能因建立了测试基线而自动接受旧缺陷。
+BASE-07 初始登记 39 项，目前仍为 open；ENG-06 新增并修复 BUILD-AMD-01，共 40 项。reproduced 表示已保存复现结果；source-observed 表示在源码、声明或产物中看到事实；unverified 表示来源、环境或行为仍需取证。证据等级与处理状态互相独立，不能把全部事项称为缺陷，也不能因建立了测试基线而自动接受旧缺陷。
 
 其中 15 项来自生命周期、DOM/示例、消费者类型/分发和性能基线；其余包含发布来源、站点分发、素材来源、8 组内嵌资源和 12 个集成边界。每项都列出负责的任务 ID、证据路径、兼容处理路线与关闭条件。具体复现仍以原基线报告为准。
 
diff --git a/refactor/risk-table.md b/refactor/risk-table.md
index b66e7ae73..cd86465f7 100644
--- a/refactor/risk-table.md
+++ b/refactor/risk-table.md
@@ -43,3 +43,4 @@
 | SDK-10 | open / 待取证 | mediabunny 实际集成验证范围 | PKG-MB-01, PKG-MB-09 |
 | SDK-11 | open / 待取证 | asr-caller-service 实际集成验证范围 | PKG-ASR-01, PKG-ASR-05, EX-03 |
 | SDK-12 | open / 待取证 | option-validator 实际集成验证范围 | CORE-01, CORE-07 |
+| BUILD-AMD-01 | resolved / 已复现 | AMD 全局导出补丁误将固定参数 t 当作全局对象 | ENG-06 |
diff --git a/refactor/risks.json b/refactor/risks.json
index ce483d540..9964f2868 100644
--- a/refactor/risks.json
+++ b/refactor/risks.json
@@ -2,7 +2,7 @@
   "schemaVersion": 1,
   "task": "BASE-07",
   "sourceCommit": "e01f39ff",
-  "updatedAt": "2026-09-10T12:58:34.267Z",
+  "updatedAt": "2026-09-10T13:46:01.011Z",
   "note": "Open means closure evidence is outstanding; source-observed and unverified are not reproduced runtime bugs. A source issue already mitigated in the workspace still requires candidate regression evidence. No accepted-with-scope item is implied by baseline task completion.",
   "items": [
     {
@@ -608,6 +608,28 @@
       ],
       "compatibleResolution": "Bundled validation dependency; preserve validation/default/merge behavior and failure cleanup when typing constructor boundaries.",
       "closureCriteria": "固定 SDK/外部资源版本和环境；成功/失败/切换/销毁有真实证据，设备和网络限制逐项记录。"
+    },
+    {
+      "id": "BUILD-AMD-01",
+      "title": "AMD 全局导出补丁误将固定参数 t 当作全局对象",
+      "confirmation": "reproduced",
+      "status": "resolved",
+      "owners": [
+        "ENG-06"
+      ],
+      "evidence": [
+        "scripts/utils.js",
+        "refactor/scripts/build.test.mjs",
+        "refactor/baselines/build-validation.json"
+      ],
+      "compatibleResolution": "从实际 UMD 包装提取全局参数，保留 AMD 工厂返回和旧 global 名称；不识别的包装失败而非静默发布。",
+      "closureCriteria": "正常构建的 TS 资源夹具和全部库 UMD/legacy AMD 返回与全局为同一对象；其余输出仅允许已解释变化。",
+      "resolutionEvidence": [
+        "refactor/changes/2026-09-10-ENG-06-build-development.md",
+        "refactor/baselines/build-validation.json",
+        "refactor/scripts/build.test.mjs"
+      ],
+      "resolutionRationale": "构建逻辑修复已完成；63 产物中 24 仅修复接收者，42 浏览器 AMD 检查通过。未改变旧 npm 内容；正式发布仍须用新工具生成实际候选。"
     }
   ]
 }
diff --git a/refactor/scripts/build.test.mjs b/refactor/scripts/build.test.mjs
new file mode 100644
index 000000000..9349b55f4
--- /dev/null
+++ b/refactor/scripts/build.test.mjs
@@ -0,0 +1,108 @@
+import assert from 'node:assert/strict'
+import { execFileSync, spawnSync } from 'node:child_process'
+import fs from 'node:fs'
+import path from 'node:path'
+import test from 'node:test'
+import { pathToFileURL } from 'node:url'
+import vm from 'node:vm'
+import { getEntryFile, parseProjects } from '../../scripts/projects.js'
+import { createRebuildQueue } from '../../scripts/rebuild.js'
+import { refactorDir } from './releases.mjs'
+
+const root = path.resolve(refactorDir, '..')
+test('Package CLI rejects ambiguous requests and never accepts inherited project names', () => {
+  const projects = { artplayer: '.', 'artplayer-plugin-chapter': '.' }
+  assert.deepEqual(parseProjects(['all'], projects, 'build').names, Object.keys(projects))
+  assert.deepEqual(parseProjects(['artplayer', 'artplayer'], projects, 'build').names, ['artplayer'])
+  assert.equal(parseProjects(['artplayer', '--no-open'], projects, 'dev').open, false)
+  for (const args of [['all', 'artplayer'], ['constructor'], ['../artplayer'], ['--unknown']])
+    assert.throws(() => parseProjects(args, projects, 'build'))
+  assert.throws(() => parseProjects(Object.keys(projects), projects, 'dev'))
+  assert.throws(() => parseProjects(['all'], projects, 'dev'))
+})
+
+test('Rebuild queue serializes changes and retries after failure', async () => {
+  let release
+  let start
+  let count = 0
+  const started = new Promise(resolve => { start = resolve })
+  const first = new Promise(resolve => { release = resolve })
+  const rebuild = createRebuildQueue(async () => {
+    count++
+    if (count === 1) {
+      start()
+      await first
+    }
+  })
+  const pending = rebuild()
+  await started
+  assert.equal(rebuild(), pending)
+  assert.equal(rebuild(), pending)
+  assert.equal(count, 1)
+  release()
+  await pending
+  assert.equal(count, 2)
+  let fail = true
+  const retry = createRebuildQueue(async () => {
+    if (fail) throw new Error('invalid source')
+  })
+  await assert.rejects(retry(), /invalid source/)
+  fail = false
+  await retry()
+})
+
+test('Normal build CLI compiles TypeScript, JS, Less, SVG and inline worker into compatible formats', async () => {
+  const parent = path.join(refactorDir, '.cache')
+  fs.mkdirSync(parent, { recursive: true })
+  const directory = fs.mkdtempSync(path.join(parent, 'build-check-'))
+  const name = 'artplayer-plugin-build-probe'
+  const project = path.join(directory, 'packages', name)
+  const dist = path.join(project, 'dist')
+  const run = args => spawnSync(process.execPath, [path.join(root, 'scripts/build.js'), ...args], { cwd: directory, encoding: 'utf8', timeout: 60000 })
+  try {
+    fs.mkdirSync(project, { recursive: true })
+    fs.cpSync(path.join(refactorDir, 'fixtures/build'), path.join(project, 'src'), { recursive: true })
+    fs.writeFileSync(path.join(project, 'package.json'), JSON.stringify({ name, version: '1.0.0' }))
+    fs.mkdirSync(dist)
+    fs.writeFileSync(path.join(dist, 'preserve.txt'), 'keep until a valid build starts')
+    assert.equal(run(['nonexistent']).status, 1)
+    assert.equal(run([]).status, 1)
+    fs.writeFileSync(path.join(project, 'src/index.js'), 'export default 1')
+    assert.throws(() => getEntryFile(project), /exactly one/)
+    assert.equal(run([name]).status, 1)
+    assert(fs.existsSync(path.join(dist, 'preserve.txt')))
+    fs.unlinkSync(path.join(project, 'src/index.js'))
+    execFileSync(process.execPath, [path.join(root, 'scripts/build.js'), name], { cwd: directory, env: { ...process.env, NODE_ENV: 'production' }, encoding: 'utf8', timeout: 60000 })
+    assert.deepEqual(fs.readdirSync(dist).sort(), [`${name}.js`, `${name}.legacy.js`, `${name}.mjs`])
+    function check(factory) {
+      assert.equal(factory().label, 'default')
+      const result = factory({ label: 'verified' })
+      assert.equal(result.label, 'verified')
+      assert.equal(result.value, 42)
+      assert.match(result.css, /#123abc/)
+      assert.match(result.svg, /<svg/)
+      assert.equal(typeof result.createWorker, 'function')
+    }
+    for (const extension of ['.js', '.legacy.js']) {
+      const code = fs.readFileSync(path.join(dist, name + extension), 'utf8')
+      assert.equal(fs.readFileSync(path.join(directory, 'docs/compiled', name + extension), 'utf8'), code)
+      const cjs = { exports: {}, module: { exports: {} } }
+      vm.runInNewContext(code, cjs)
+      check(cjs.module.exports)
+      const global = {}
+      vm.runInNewContext(code, global)
+      check(global.artplayerPluginBuildProbe)
+      let exported
+      const amd = { define: Object.assign(factory => { exported = factory() }, { amd: true }) }
+      vm.runInNewContext(code, amd)
+      assert.equal(exported, amd.artplayerPluginBuildProbe)
+      check(exported)
+    }
+    check((await import(pathToFileURL(path.join(dist, `${name}.mjs`)))).default)
+  }
+  finally {
+    const relative = path.relative(parent, directory)
+    assert(relative.startsWith('build-check-') && !relative.includes(path.sep))
+    fs.rmSync(directory, { recursive: true, force: true })
+  }
+})
diff --git a/refactor/tasks.json b/refactor/tasks.json
index 83717d95d..a58f20c08 100644
--- a/refactor/tasks.json
+++ b/refactor/tasks.json
@@ -547,11 +547,15 @@
         "ENG-02",
         "BASE-05"
       ],
-      "status": "todo",
+      "status": "done",
       "risk": "H",
       "deliverable": "build/dev 入口解析、指定包参数、原交互保留",
       "acceptance": "三种产物、Less/SVG/worker 和本地 8082 demo 正常；保持 BASE-05 的 AMD 同时写入全局行为及 i18n/legacy 入口",
-      "evidence": []
+      "evidence": [
+        "changes/2026-09-10-ENG-06-build-development.md",
+        "build-development.md",
+        "baselines/build-validation.json"
+      ]
     },
     {
       "id": "ENG-07",
diff --git a/scripts/build.js b/scripts/build.js
index 850e9173f..6d466385a 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -2,8 +2,8 @@ import fs from 'node:fs'
 import path from 'node:path'
 import process from 'node:process'
 import cpy from 'cpy'
-import prompts from 'prompts'
 import { build as viteBuild } from 'vite'
+import { getEntryFile, selectProjects } from './projects.js'
 import { getGlobalName, getProjects, getViteBuildConfig } from './utils.js'
 
 const projects = getProjects()
@@ -28,9 +28,11 @@ async function build(name, targetName, clean = false) {
   const projectDir = projects[name]
   const { version } = JSON.parse(fs.readFileSync(path.join(projectDir, 'package.json'), 'utf-8'))
   const distDir = path.join(projectDir, 'dist')
-  const entryFile = path.join(projectDir, 'src/index.js')
+  const entryFile = getEntryFile(projectDir)
 
   if (clean && fs.existsSync(distDir)) {
+    if (fs.realpathSync(distDir) !== path.join(fs.realpathSync(projectDir), 'dist'))
+      throw new Error(`Refusing to clean redirected dist directory: ${distDir}`)
     fs.rmSync(distDir, { recursive: true, force: true })
   }
 
@@ -79,22 +81,11 @@ async function buildProject(name) {
 }
 
 async function runBuild() {
-  if (process.argv.includes('all')) {
-    for (const name of Object.keys(projects)) {
-      await buildProject(name)
-    }
-    console.log('✅ Finished building all packages!')
-  }
-  else {
-    const { value } = await prompts({
-      type: 'select',
-      name: 'value',
-      message: 'Which project do you want to build?',
-      choices: Object.keys(projects).map(name => ({ title: name, value: name })),
-    })
-    if (value)
-      await buildProject(value)
-  }
+  const { names } = await selectProjects(projects, 'build')
+  for (const name of names)
+    await buildProject(name)
+  if (names.length)
+    console.log(`✅ Finished building ${names.length} package(s)!`)
 }
 
 runBuild().catch((error) => {
diff --git a/scripts/dev.js b/scripts/dev.js
index d2f051d0c..2494f4b93 100644
--- a/scripts/dev.js
+++ b/scripts/dev.js
@@ -1,17 +1,18 @@
 import fs from 'node:fs'
 import path from 'node:path'
-import prompts from 'prompts'
+import process from 'node:process'
 import servor from 'servor'
 import openBrowser from 'servor/utils/openBrowser.js'
 import { build as viteBuild } from 'vite'
+import { getEntryFile, selectProjects } from './projects.js'
+import { createRebuildQueue } from './rebuild.js'
 import { getGlobalName, getProjects, getViteBuildConfig } from './utils.js'
 
 const projects = getProjects()
 
-async function develop(name) {
+async function develop(name, open) {
   const projectPath = projects[name]
   const uncompiledPath = path.resolve(`docs/uncompiled/${name}`)
-  const entryFile = path.join(projectPath, 'src/index.js')
   let browserOpened = false
 
   const { url } = await servor({
@@ -27,7 +28,7 @@ async function develop(name) {
     const startTime = Date.now()
     try {
       const config = getViteBuildConfig({
-        entry: entryFile,
+        entry: getEntryFile(projectPath),
         outDir: uncompiledPath,
         name: getGlobalName(name),
         format: 'iife',
@@ -40,7 +41,7 @@ async function develop(name) {
       await viteBuild({ root: projectPath, ...config })
       console.log(`[${name}] ✅ Built in ${Date.now() - startTime}ms`)
 
-      if (!browserOpened) {
+      if (open && !browserOpened) {
         browserOpened = true
         openBrowser(url)
       }
@@ -50,7 +51,9 @@ async function develop(name) {
     }
   }
 
-  await buildBundle()
+  const rebuild = createRebuildQueue(buildBundle)
+  await rebuild()
+  console.log(`[${name}] Demo: ${url}/?libs=./uncompiled/${name}/index.js`)
 
   const srcPath = path.join(projectPath, 'src')
   console.log(`[${name}] 👀 Watching ${srcPath}...`)
@@ -58,18 +61,16 @@ async function develop(name) {
   fs.watch(srcPath, { recursive: true }, async (_, filename) => {
     if (filename) {
       console.log(`[${name}] 📝 Changed: ${filename}`)
-      await buildBundle()
+      await rebuild()
     }
   })
 }
 
 (async () => {
-  const { value } = await prompts({
-    type: 'select',
-    name: 'value',
-    message: 'Which project do you want to develop?',
-    choices: Object.keys(projects).map(name => ({ title: name, value: name })),
-  })
-  if (value)
-    await develop(value)
-})()
+  const { names, open } = await selectProjects(projects, 'dev')
+  if (names.length)
+    await develop(names[0], open)
+})().catch((error) => {
+  console.error('❌ Development server failed:', error)
+  process.exitCode = 1
+})
diff --git a/scripts/projects.js b/scripts/projects.js
new file mode 100644
index 000000000..9cfd2aa3c
--- /dev/null
+++ b/scripts/projects.js
@@ -0,0 +1,65 @@
+import fs from 'node:fs'
+import path from 'node:path'
+import process from 'node:process'
+import prompts from 'prompts'
+
+export function getProjects(root = process.cwd()) {
+  const packages = path.join(root, 'packages')
+  return Object.fromEntries(fs.readdirSync(packages).sort()
+    .filter(name => name !== 'artplayer-vitepress' && fs.existsSync(path.join(packages, name, 'package.json')))
+    .map(name => [name, path.join(packages, name)]))
+}
+
+export function getEntryFile(projectDir) {
+  const entries = ['index.js', 'index.ts'].map(name => path.join(projectDir, 'src', name)).filter(file => fs.existsSync(file) && fs.statSync(file).isFile())
+  if (entries.length !== 1)
+    throw new Error(`${path.basename(projectDir)} must have exactly one src/index.js or src/index.ts; found ${entries.length}`)
+  return entries[0]
+}
+
+export function parseProjects(args, projects, command) {
+  const names = []
+  let open = true
+  for (const arg of args) {
+    if (arg === '--no-open' && command === 'dev')
+      open = false
+    else if (arg === '--help')
+      return { help: true, names: [], open }
+    else if (arg !== '--')
+      names.push(arg)
+  }
+  if (names.includes('all')) {
+    if (command !== 'build' || names.length !== 1)
+      throw new Error('Use build all on its own; dev accepts one package')
+    return { names: Object.keys(projects), open }
+  }
+  for (const name of names) {
+    if (!Object.hasOwn(projects, name))
+      throw new Error(`Unknown package: ${name}. Use yarn ${command} --help`)
+  }
+  if (command === 'dev' && names.length > 1)
+    throw new Error('dev accepts one package')
+  return { names: [...new Set(names)], open }
+}
+
+export async function selectProjects(projects, command) {
+  const selection = parseProjects(process.argv.slice(2), projects, command)
+  if (selection.help) {
+    console.log(command === 'build' ? 'Usage: yarn build [all | package ...]' : 'Usage: yarn dev [package] [--no-open]')
+    return selection
+  }
+  if (!selection.names.length) {
+    if (!process.stdin.isTTY)
+      throw new Error(`Select a package explicitly in non-interactive mode: yarn ${command} artplayer`)
+    const { value } = await prompts({
+      type: 'select',
+      name: 'value',
+      message: `Which project do you want to ${command === 'build' ? 'build' : 'develop'}?`,
+      choices: Object.keys(projects).map(name => ({ title: name, value: name })),
+    })
+    selection.names = value ? [value] : []
+  }
+  for (const name of selection.names)
+    getEntryFile(projects[name])
+  return selection
+}
diff --git a/scripts/rebuild.js b/scripts/rebuild.js
new file mode 100644
index 000000000..6420ec630
--- /dev/null
+++ b/scripts/rebuild.js
@@ -0,0 +1,16 @@
+export function createRebuildQueue(build) {
+  let pending = false
+  let active
+  return () => {
+    pending = true
+    if (!active) {
+      active = Promise.resolve().then(async () => {
+        while (pending) {
+          pending = false
+          await build()
+        }
+      }).finally(() => { active = undefined })
+    }
+    return active
+  }
+}
diff --git a/scripts/utils.js b/scripts/utils.js
index d8ff2a6b1..5a4b8582f 100644
--- a/scripts/utils.js
+++ b/scripts/utils.js
@@ -1,20 +1,4 @@
-import fs from 'node:fs'
-import path from 'node:path'
-import process from 'node:process'
-import { glob } from 'glob'
-
-export function getProjects() {
-  return glob
-    .sync('packages/*')
-    .sort()
-    .filter(item => !item.endsWith('artplayer-vitepress'))
-    .filter(item => fs.existsSync(path.join(item, 'package.json')))
-    .reduce((result, item) => {
-      const name = item.split(/\/|\\/g).pop()
-      result[name] = path.resolve(process.cwd(), item)
-      return result
-    }, {})
-}
+export { getProjects } from './projects.js'
 
 // Convert kebab-case to PascalCase: artplayer-plugin-ads -> ArtplayerPluginAds
 export function toPascalCase(name) {
@@ -71,7 +55,7 @@ export function getViteBuildConfig(options) {
         plugins: banner
           ? [{
               name: 'add-banner-and-global',
-              generateBundle(_, bundle) {
+              generateBundle(outputOptions, bundle) {
                 for (const chunk of Object.values(bundle)) {
                   if (chunk.type === 'chunk') {
                     // Remove any inline worker banners (inside template literals)
@@ -83,14 +67,18 @@ export function getViteBuildConfig(options) {
                     }
                     // For UMD format, modify the wrapper to always expose global
                     // even when AMD loader is present (fix for RequireJS environments)
-                    if (format === 'umd') {
-                      // Match both original and minified UMD patterns:
-                      // Original: typeof define === 'function' && define.amd ? define(factory) :
-                      // Minified: "function"===typeof define&&define.amd?define(e):
-                      // Change to: ... ? (global.Name = factory(), define(function() { return global.Name; })) :
+                    if (outputOptions.format === 'umd') {
+                      const wrapper = code.replace(/^\/\*![\s\S]*?\*\/\s*/, '').match(/^[!(\s]*function\s*\(\s*([\w$]+)\s*,\s*([\w$]+)\s*\)/)
+                      if (!wrapper)
+                        throw new Error(`Unrecognized UMD wrapper for ${name}`)
+                      const global = wrapper[1]
+                      const amd = /["']function["']\s*===?\s*typeof define\s*&&\s*define\.amd\s*\?\s*define\(([\w$]+)\)\s*:/
+                      if (!amd.test(code))
+                        throw new Error(`Unrecognized AMD branch for ${name}`)
+                      // Keep AMD and the global export identical regardless of minified parameter names.
                       code = code.replace(
-                        /["']function["']\s*===?\s*typeof define\s*&&\s*define\.amd\s*\?\s*define\((\w+)\)\s*:/,
-                        `"function"==typeof define&&define.amd?(t.${name}=$1(),define(function(){return t.${name}})):`,
+                        amd,
+                        `"function"==typeof define&&define.amd?(${global}.${name}=$1(),define(function(){return ${global}.${name}})):`,
                       )
                     }
                     chunk.code = code
diff --git a/types/assets.d.ts b/types/assets.d.ts
index 56851d03e..50691bad3 100644
--- a/types/assets.d.ts
+++ b/types/assets.d.ts
@@ -7,3 +7,8 @@ declare module '*.svg' {
   const svg: string
   export default svg
 }
+
+declare module '*.svg?raw' {
+  const svg: string
+  export default svg
+}