diff --git a/doc/architecture.md b/doc/architecture.md
index 6e76c362..15a43fcc 100644
--- a/doc/architecture.md
+++ b/doc/architecture.md
@@ -78,7 +78,7 @@ Retrieval 负责文档索引、向量检索、全文检索和结果融合。检
 
 ### Tool Runtime
 
-Tool Runtime 为 AI 提供文件、终端、浏览器等本地能力。工具实现位于 Main，由各领域服务负责具体操作；通用安全边界、审批和工作区变化追踪由运行时统一处理。
+Tool Runtime 为 AI 提供文件、终端、浏览器等本地能力。工具实现位于 Main，由各领域服务负责具体操作；审批、命令安全策略和工作区变化追踪由运行时统一处理。工作区是默认路径、资料索引与变更追踪范围，不限制工具访问工作区外绝对路径。
 
 内置浏览器由 Electron `WebContentsView` 承载，Stagehand 通过仅绑定本机回环地址的随机 CDP endpoint 精确连接对应 Tab，不依赖固定端口或 URL 猜测页面。
 
@@ -89,7 +89,7 @@ Workbench 的当前交互状态由 Renderer 管理，并按会话串行写入 SQ
 
 ### Workspace Change Tracking
 
-每个 Run 前后扫描工作区，统一确认新增、修改、删除和重命名，并保存可回退的修改前对象。不同文件格式只负责提供对应的预览方式。
+每个 Run 前后只扫描工作区，统一确认新增、修改、删除和重命名，并保存可回退的修改前对象。工作区外绝对路径允许由工具读写，但不进入当前修改记录、预览或回退能力。不同文件格式只负责提供对应的预览方式。
 
 ## AI 架构
 
@@ -156,7 +156,7 @@ AI 结构化调用按配置和模型记忆成功策略；能力不支持、解
 
 未正常完成的智能模式任务另有一套按会话持久化的恢复快照。快照保存原始任务、历次中断与恢复记录、当前中断原因和 HumanState 进度；同一会话的下一条用户消息会消费当前中断原因、追加恢复记录并启动新的 run。网络错误、超时、用户停止、进程中断、运行上限和未知异常都保留快照，只有任务正常完成或会话被删除时才清理。不同会话的恢复状态严格隔离。
 
-文件 artifact 是预览、差异与回退所需的内部业务数据；传入模型时只投影必要语义，不暴露内部记录标识。运行失败或取消不会撤销已落地修改，所有终态都保留可查看、可回退的修改记录。
+文件 artifact 是预览、差异与回退所需的内部业务数据；传入模型时只投影必要语义，不暴露内部记录标识。运行失败或取消不会撤销已落地的工作区内修改，所有终态都保留可查看、可回退的工作区内修改记录。
 
 ## 存储架构
 
@@ -179,6 +179,6 @@ AI 结构化调用按配置和模型记忆成功策略；能力不支持、解
 3. AI Runtime 通过 human graph 推进 brain、learning、hand、mouth。
 4. 需要资料时进入 Retrieval，读取 SQLite 元数据并检索 LanceDB。
 5. 需要本地能力时由 Tool Runtime 调用对应领域服务。
-6. 文件写回后记录统一修改记录和对应预览，供 UI 展示和回退。
+6. 工作区内文件写回后记录统一修改记录和对应预览，供 UI 展示和回退；工作区外写入不记录回退。
 7. 最终答复和事件流通过 IPC 回到 Renderer 展示。
 8. Run 持久化为 `completed`、`failed` 或 `cancelled` 后，Main 触发一次系统通知；通知点击通过 Preload IPC 打开对应会话。
diff --git a/doc/prd/workbench.md b/doc/prd/workbench.md
index 69ace794..1bda4930 100644
--- a/doc/prd/workbench.md
+++ b/doc/prd/workbench.md
@@ -41,7 +41,7 @@
 - 未显式选择参考资料时，智能模式仍可处理通用任务。
 - 显式选择目录、文件或网页资料后，任务应优先使用这些资料。只绑定工作区时，默认使用工作区内全部已导入资料；资料不足时，智能模式可用模型通用知识补充通用部分。
 - 当前可由 workbench 直接写回并支持回退的受支持文件类型包括 `docx`、`pptx`、`xlsx`、生成的 `png`、`jpg`、`jpeg`、`webp` 图片，以及 Markdown、TXT、配置文件和代码等 UTF-8 普通文本文件；普通文本支持创建、完整改写、唯一文本编辑和全部精确匹配替换。Excel 工具可读取 `xlsx`、`xlsm`、`xltx`、`xltm`，但只允许创建和编辑 `xlsx`，避免写回时丢失宏或模板信息。
-- 当前通过 composer 附件进入对话上下文的文件类型支持图片、`doc`、`docx`、`pptx`、`pdf`、`md`、`json`、`xlsx`、`xlsm`、`xltx`、`xltm`；这些附件不自动预解析，只保存到当前工作区并把名称与路径交给 AI 后续自行处理。`doc` 只支持读取，`pptx` 可交给 PPT 工具读取、搜索、渲染和编辑，Excel 文件可交给 Excel 工具处理，但只有 `xlsx` 可写。
+- 当前通过 composer 附件进入对话上下文的文件类型支持图片、`doc`、`docx`、`pptx`、`pdf`、`md`、`json`、`xlsx`、`xlsm`、`xltx`、`xltm`；`+` 选择和拖放文件保留源文件绝对路径，粘贴文件保存副本到当前工作区。附件不自动预解析，只把名称与路径交给 AI 后续自行处理。`doc` 只支持读取，`pptx` 可交给 PPT 工具读取、搜索、渲染和编辑，Excel 文件可交给 Excel 工具处理，但只有 `xlsx` 可写。
 - 其他格式不保证直接写回和回退。AI 可以在工作区和审批边界内尝试处理，但不属于受支持文件能力范围。
 - 终端执行只允许当前平台安全指令集直接运行；一条 terminal 命令被拆分后的每段都命中安全指令集时可直接执行，任一段未命中则必须先经用户手动批准。安全指令集只决定是否可直接执行，不决定执行模式。
 - 搜索模式只检索当前工作区下可检索的已导入资料；`@` 候选仍可展示当前工作区下的全部本地目录和文件，但未索引的本地目录或文件不能产生纯搜索结果，部分可检索目录只覆盖其已索引子文件。
@@ -318,10 +318,10 @@
 
 #### WB-COMPOSER-010 附件保存与传递规则
 
-- 系统行为：用户通过 `+`、粘贴或拖入中间聊天区添加附件时，附件统一保存到当前工作区的 `<workspace>/.ncurator/runtime/assets/<assetBucketId>/`；`assetBucketId` 是当前输入草稿生成的 UUID，和会话 ID 解耦，添加附件不会提前创建新会话。文件拖入中间聊天区时显示透明覆盖层“松开以添加文件”，拖离或放下后消失；覆盖层不覆盖左侧栏、顶部栏或右侧资源面板。发送给 AI 的附件上下文只包含顺序、名称和路径。
+- 系统行为：用户通过 `+` 或拖入中间聊天区添加本地文件时，附件记录其源文件绝对路径，不复制文件；粘贴文件因不保证有稳定源路径，保存到当前工作区的 `<workspace>/.ncurator/runtime/assets/<assetBucketId>/`。`assetBucketId` 是当前输入草稿生成的 UUID，和会话 ID 解耦，添加附件不会提前创建新会话。文件拖入中间聊天区时显示透明覆盖层“松开以添加文件”，拖离或放下后消失；覆盖层不覆盖左侧栏、顶部栏或右侧资源面板。发送给 AI 的附件上下文只包含顺序、名称和路径。
 - 验收：
   - `WB-COMPOSER-010-AC1` 未绑定可用工作区时，不允许添加附件，并提示先选择工作区或完成目录绑定。
-  - `WB-COMPOSER-010-AC2` 已绑定工作区后，`+`、粘贴和拖放添加的附件都会保存到 `<workspace>/.ncurator/runtime/assets/<assetBucketId>/`，且不会提前创建真实会话。
+  - `WB-COMPOSER-010-AC2` 已绑定工作区后，`+` 和拖放文件保留源文件绝对路径；粘贴文件保存到 `<workspace>/.ncurator/runtime/assets/<assetBucketId>/`；三种方式均不会提前创建真实会话。
   - `WB-COMPOSER-010-AC3` 当前附件支持范围只有图片、`doc`、`docx`、`pptx`、`pdf`、`md`、`json`、`xlsx`、`xlsm`、`xltx`、`xltm`；其中 `doc` 只读，`pptx` 可由 PPT 工具读取和编辑，四种 Excel 格式均可读取但只有 `xlsx` 可编辑；其他格式提示不支持且不加入附件列表。
   - `WB-COMPOSER-010-AC4` 发送给 AI 的附件上下文只包含顺序、名称和路径，不包含发送前预解析摘要。
   - `WB-COMPOSER-010-AC5` 拖放仅接受文件；文件夹不处理。格式校验、大小提示、附件卡片和移除逻辑与 `+`、粘贴一致。
@@ -380,7 +380,7 @@
 
 #### WB-BLOCKER-001 审批阻塞
 
-- 系统行为：审核权限下，AI 运行收到批量审批事件后，在输入框上方展示紧贴 composer 的审批卡片；卡片一次只展示当前一条审批项，用户可通过上下切换浏览整批，并且必须先完成整批审核后系统才会继续决策是否执行。审批卡片不展示内部策略原因，命令文本与同意/拒绝图标按钮左右排列，指导输入框与提交按钮同排展示；审批不自动超时，必须等待用户明确操作或运行被取消/关闭。完全访问权限下，统一审批入口直接批准该 run 的所有审批项，不创建等待审批状态、不发送审批事件、不展示审批卡片。完全访问只跳过审批，不绕过工作区边界、命令安全限制、取消、文件变更记录或其他运行时保护。
+- 系统行为：审核权限下，AI 运行收到批量审批事件后，在输入框上方展示紧贴 composer 的审批卡片；卡片一次只展示当前一条审批项，用户可通过上下切换浏览整批，并且必须先完成整批审核后系统才会继续决策是否执行。审批卡片不展示内部策略原因，命令文本与同意/拒绝图标按钮左右排列，指导输入框与提交按钮同排展示；审批不自动超时，必须等待用户明确操作或运行被取消/关闭。完全访问权限下，统一审批入口直接批准该 run 的所有审批项，不创建等待审批状态、不发送审批事件、不展示审批卡片。完全访问只跳过审批，不绕过工作区绑定、命令安全限制、取消、工作区内文件变更记录或其他运行时保护。
 - 验收：
   - `WB-BLOCKER-001-AC1` 同一批次全部选择“同意”后，当前运行恢复加载态，并按原 serial 顺序继续执行该批对应命令。
   - `WB-BLOCKER-001-AC2` 只要批次中任一项被“拒绝”或填写“告诉馆长该怎么做”，本批命令一条都不会执行，系统回到后续 AI 决策收口。
@@ -513,17 +513,17 @@
 
 #### WB-TERMINAL-001 持久终端会话
 
-- 系统行为：terminal 使用持久终端会话。新终端从当前 workspace 根目录启动；已有空闲终端可通过 `terminalId` 继续执行并保留路径，运行中的终端不能接受新命令。长命令返回 `command_still_running` 后继续运行，可通过 `terminal_read` 增量读取，通过 `terminal_stop` 停止或关闭。工具不接收 `cwd`，只使用当前终端路径和结构化终端状态。
+- 系统行为：terminal 使用持久终端会话。新终端从当前 workspace 根目录启动；已有空闲终端可通过 `terminalId` 继续执行并保留路径，运行中的终端不能接受新命令。长命令返回 `command_still_running` 后继续运行，可通过 `terminal_read` 增量读取，通过 `terminal_stop` 停止或关闭。工具不接收 `cwd`，只使用当前终端路径和结构化终端状态。绝对路径可以访问工作区外文件；相对路径仍以当前终端路径为起点。
 - 验收：
   - `WB-TERMINAL-001-AC1` 同一 terminalId 连续执行时保留 `cd` 后当前路径；不传 terminalId 会创建从 workspace 根目录开始的新终端。
   - `WB-TERMINAL-001-AC2` 长命令固定让出控制权但不被误判为失败；terminal_read 只返回游标后的增量输出和客观状态。
   - `WB-TERMINAL-001-AC3` terminal_stop 先中断前台命令，必要时强制结束完整进程树；删除会话、取消所属 run 或退出应用不会遗留进程。
-  - `WB-TERMINAL-001-AC4` terminal_run 继续遵守命令审批和 workspace 边界；terminal_read 与 terminal_stop 不能访问其他会话或 workspace 的终端。
+  - `WB-TERMINAL-001-AC4` terminal_run 继续遵守命令审批与其他安全策略；terminal_read 与 terminal_stop 不能访问其他会话或 workspace 的终端。
   - `WB-TERMINAL-001-AC5` shell 后台符号、nohup 或 Start-Process 不能绕过持久终端管理。
 
 #### WB-APPLY-003 回退本次 AI 修改
 
-- 系统行为：受控文件工具写回后立即保存本次 run 的修改记录、有效变更校验和所需快照；terminal 每条命令执行前保存工作区基线，命令最终结束、失败或停止后计算该命令窗口内的新增、修改、删除和重命名。终端记录归入发起命令的 run。不同 terminal 命令并发重叠时允许同一变化在多个 run 中重复记录；系统不加锁、不推断唯一归属。AI 或用户在没有受控工具写回和 terminal 命令窗口时产生的外部变化不归入任何 AI Run。基线内容按 SHA-256 保存；文本 Diff 根据不可变的修改前后内容生成并缓存。回退使用修改前对象，不反向计算 Diff。
+- 系统行为：受控文件工具写回工作区内文件时立即保存本次 run 的修改记录、有效变更校验和所需快照；terminal 每条命令执行前保存工作区基线，命令最终结束、失败或停止后计算该命令窗口内的新增、修改、删除和重命名。终端记录归入发起命令的 run。不同 terminal 命令并发重叠时允许同一变化在多个 run 中重复记录；系统不加锁、不推断唯一归属。AI 可以读写工作区外绝对路径，但这些变更不进入当前修改记录与回退能力。AI 或用户在没有受控工具写回和 terminal 命令窗口时产生的外部变化不归入任何 AI Run。基线内容按 SHA-256 保存；文本 Diff 根据不可变的修改前后内容生成并缓存。回退使用修改前对象，不反向计算 Diff。
 - 验收：
   - `WB-APPLY-003-AC1` 未发生后续修改时，回退恢复写回前 checkpoint，记录状态变为 `reverted`。
   - `WB-APPLY-003-AC2` 新建文件回退时删除 AI 新建目标文件。
@@ -623,7 +623,7 @@
   - `WB-IMAGE-001-AC1` `image_generate` 只接收 `outputPath` 和 `svg`，输出格式由 `.png`、`.jpg`、`.jpeg` 或 `.webp` 扩展名决定。
   - `WB-IMAGE-001-AC2` 工具成功后只交付目标图片文件，assistant turn 展示该图片的修改入口，右侧面板可直接预览。
   - `WB-IMAGE-001-AC3` 目标路径已存在时自动更新；目标不存在时自动创建，不要求 AI 额外声明 action、format 或 overwrite。
-  - `WB-IMAGE-001-AC4` SVG 无法安全解析、渲染或编码，输出格式不受支持，或目标路径越过工作区时，工具返回错误且目标文件保持调用前状态。
+  - `WB-IMAGE-001-AC4` SVG 无法安全解析、渲染或编码，或输出格式不受支持时，工具返回错误且目标文件保持调用前状态；工作区外绝对路径可以写入，但不提供修改记录或回退。
 
 ## 9. 非目标
 
diff --git a/doc/test-plan/ai-test.md b/doc/test-plan/ai-test.md
index bedabaf3..e3934f9d 100644
--- a/doc/test-plan/ai-test.md
+++ b/doc/test-plan/ai-test.md
@@ -28,8 +28,8 @@
 - `tool` 只验证真实生产工具调用，不允许 fake。
 - `tool / docx` 包含 `docx-edit-serial-actions-stability`，用于守住同一次 `docx_edit(actions)` 内插入、替换、删除后的 block 定位稳定性。
 - `tool / text-file` 覆盖普通文本读取、四种写入 action、修改记录、结构化 diff 与回退前置数据。
-- `tool / image-generation` 覆盖 SVG 内部绘制输入、PNG/JPEG/WebP 转码、自动创建或更新、修改记录、Artifact、安全校验和工作区边界。
-- `tool / pdf` 使用真实 `深度学习.pdf`，覆盖元数据、页级正文、literal/regex 搜索、页面 PNG、工作区边界、损坏文件和结果大小限制。
+- `tool / image-generation` 覆盖 SVG 内部绘制输入、PNG/JPEG/WebP 转码、自动创建或更新、工作区内修改记录、Artifact、安全校验和工作区外绝对路径写入不记录回退。
+- `tool / pdf` 使用真实 `深度学习.pdf`，覆盖元数据、页级正文、literal/regex 搜索、页面 PNG、工作区外绝对路径读取、损坏文件和结果大小限制。
 - `tool / web-browsing` 包含 `web-crawl-contract`，用于守住 `web_crawl`、`web_search` 和 `browser_use` 工具契约。
 - 目标：验证 tool 与 `hand` 执行守卫的生产输入输出。
 - 约束：使用真实工具、store、docx apply service 和 artifact 流；禁止 fake `documentsStore`、`embeddingService`、`resolveDocxOpenTarget` 或 tool result。
@@ -634,9 +634,9 @@ AI unit / 辅助测试目录：
 
 - 测试类型：`backend`
 - What：PDF 输入边界会明确失败。
-- Why：防止路径逃逸、伪 PDF、非法 regex 和越界页码进入不确定状态。
+- Why：防止伪 PDF、非法 regex 和越界页码进入不确定状态，同时确认外部附件路径可以读取。
 - How：分别传入越界页码、非法 regex、错误文件头以及指向工作区外的链接；Windows 使用无需提升权限的目录 junction，Unix 使用目录 symlink。
-- Oracle：每种输入都返回明确失败，不读取工作区外文件。
+- Oracle：越界页码、非法 regex 和错误文件头返回明确失败；工作区外 PDF 通过符号链接仍可正常读取。
 - Not：不做密码破解或损坏文件修复。
 
 #### ppt 类别
@@ -888,9 +888,9 @@ AI unit / 辅助测试目录：
 ##### `image-generate-safety-and-boundary-contract`
 
 - 测试类型：`backend`
-- What：危险 SVG、不支持格式和工作区越界请求失败且不产生文件副作用。
+- What：危险 SVG 和不支持格式请求失败；工作区外绝对路径可写入但不产生回退记录。
 - Why：SVG 是可包含脚本和外部资源的输入格式，图片工具必须在写文件前完成安全和路径校验。
-- How：分别提交包含脚本、外部图片引用、CSS 外链、CSS import、超大尺寸、malformed SVG、`.gif` 输出路径和工作区外路径的真实工具调用；越界路径同时携带非法 SVG 以确认先检查路径，malformed SVG 使用一份已存在目标文件。
+- How：分别提交包含脚本、外部图片引用、CSS 外链、CSS import、超大尺寸、malformed SVG、`.gif` 输出路径和工作区外路径的真实工具调用；工作区外路径使用安全 SVG，malformed SVG 使用一份已存在目标文件。
 - Oracle：所有调用均返回明确错误；新目标文件不存在；已有目标文件保持调用前 bytes；不生成图片修改记录或 `file_artifact`。
 - Not：不把内部安全规则写入 Tool 提示词，也不穷举全部 SVG 标签。
 
diff --git a/doc/test-plan/workbench-test.md b/doc/test-plan/workbench-test.md
index 361ae6ec..3c6d9052 100644
--- a/doc/test-plan/workbench-test.md
+++ b/doc/test-plan/workbench-test.md
@@ -21,7 +21,7 @@
 - image generation apply case 需要真实模型学习 `image-generation`、真实调用 `image_generate`、生成可解码图片、展示修改入口和图片预览，并完成新建图片回退。
 - `browser-use-task-panel` 需要真实 AI run 触发 `browser_use` 并驱动内置浏览器完成本地网页任务；同时验证多个浏览器 Tab 独立历史、共享持久站点数据、切换文件后网页状态不销毁，以及同 URL 标签不会让 Stagehand 串页，不能用 fake browser 替代。
 - `web_search` 与 `web_crawl` 需要分开覆盖：搜索 case 只验证候选网页返回；读取 case 必须验证 AI 继续读取网页正文后再回答。
-- Workbench 附件链路当前支持图片、`doc`、`docx`、`pptx`、`pdf`、`md`、`json`、`xlsx`、`xlsm`、`xltx`、`xltm`，统一保存到 `<workspace>/.ncurator/runtime/assets/<assetBucketId>/`；`assetBucketId` 为输入草稿 UUID，发送给 AI 时只传附件名称与路径，不再做发送前识图或文件解析。
+- Workbench 附件链路当前支持图片、`doc`、`docx`、`pptx`、`pdf`、`md`、`json`、`xlsx`、`xlsm`、`xltx`、`xltm`；`+` 和拖放保留源文件绝对路径，粘贴文件保存到 `<workspace>/.ncurator/runtime/assets/<assetBucketId>/`。`assetBucketId` 为输入草稿 UUID，发送给 AI 时只传附件名称与路径，不再做发送前识图或文件解析。
 - `WB-EXCEL-001-AC1`、`WB-EXCEL-001-AC2`、`WB-EXCEL-001-AC3`、`WB-EXCEL-001-AC4`、`WB-EXCEL-001-AC6`、`WB-EXCEL-001-AC7` 的工具输入输出、完整编辑操作、原子失败、冲突、只读格式、默认 Sheet 和 Sheet 严格校验由 AI tool 回归承担；`WB-EXCEL-002` 的完整 XLSX diff 语义也由 AI tool 解析 diff 文件校验。Workbench 的 Excel apply case 负责真实模型选用工具、正式文件、修改入口、只读单网格预览和回退闭环，不重复枚举底层操作。
 - docx、ppt、pdf 也按同一分层：格式专用工具的读写、边界、格式保真和 diff artifact 语义放在 AI tool；DOCX tool 必须覆盖已有表格的单元格内容与格式净变化、精确红绿标记、计数和非空回读；其中 PPT tool 必须完整覆盖 baseline 到最终状态的页面/元素净变化、自然位移、零净变化、lineage、v4 schema 和准确计数。Workbench e2e 只验证真实用户流程、现有预览入口、红绿页面标记、`+N/-N`、差异面板交互和回退，不重复枚举底层元素组合。PDF 当前是只读工具，没有 Workbench apply diff 语义。
 - DOCX 工具结果和历史结果按递归 children 树展示，Workbench 必须能显示 visualId、visual kind、nodeId 和统一 style action，不再读取旧 runs/cells/paragraphs history shape。`docx_read_visuals` 使用与 PDF/PPT 视觉读取一致的结果展示。
@@ -197,10 +197,10 @@ tests/case/workbench/
 #### `composer-attachments-context`
 
 - 测试类型：`e2e / live`
-- What：`+`、粘贴与拖入中间聊天区添加附件时，附件会保存到工作区 `.ncurator/runtime/assets/<assetBucketId>/`，不会提前创建真实会话；图片、`doc`、`docx`、`pptx`、`pdf`、`md`、`json`、`xlsx`、`xlsm`、`xltx`、`xltm` 可以添加，并保持图片预览、文件打开、删除、普通文本粘贴和格式提示行为。
-- Why：附件链路已改为“统一落盘到工作区 + 只把路径交给 AI”，必须用回归测试守住真实保存路径和交互行为。
-- How：创建并通过原生目录选择绑定真实工作区；点击添加附件后，在 Windows 系统文件窗口或 macOS Open 面板中用系统级键鼠选择真实文件，经过 Renderer → IPC → Main → 附件保存链路；另外覆盖大文件 warning，并通过真实模型发送一次带附件消息。
-- Oracle：文件拖入中间聊天区时显示“松开以添加文件”的透明覆盖层，放下后覆盖层消失并出现附件卡片；未绑定工作区时提示先选择工作区且不添加附件；真实添加会落盘且不提前创建会话；图片预览、Excel 格式范围和大文件提示正确；发送后的用户消息保留附件名称，路径全部位于同一 runtime assets 目录；提示词只渲染名称与路径的纯契约由 AI Unit 负责；整体对齐 `WB-COMPOSER-010`。
+- What：`+`、粘贴与拖入中间聊天区添加附件时，不会提前创建真实会话；图片、`doc`、`docx`、`pptx`、`pdf`、`md`、`json`、`xlsx`、`xlsm`、`xltx`、`xltm` 可以添加，并保持图片预览、文件打开、删除、普通文本粘贴和格式提示行为。
+- Why：`+` 与拖放必须把源文件路径交给 AI，粘贴仍需保存副本，回归必须守住这两条不同链路。
+- How：创建并通过原生目录选择绑定真实工作区；点击添加附件后，在 Windows 系统文件窗口或 macOS Open 面板中用系统级键鼠选择真实文件，经过 Renderer → IPC → Main 源路径登记链路；另外覆盖拖入覆盖层、大文件 warning，并通过真实模型发送一次带附件消息。
+- Oracle：文件拖入中间聊天区时显示“松开以添加文件”的透明覆盖层，放下后覆盖层消失；未绑定工作区时提示先选择工作区且不添加附件；`+` 选择的文件路径等于原始源路径且不提前创建会话；图片预览、Excel 格式范围和大文件提示正确；提示词只渲染名称与路径的纯契约由 AI Unit 负责；整体对齐 `WB-COMPOSER-010`。
 - Not：不在跨平台业务回归中验证系统原生文件选择器的视觉细节；不通过 `attachmentPickResponse` 或直接 `attachmentSaveFile` 伪造附件结果。
 
 #### `reference-mention-keyboard`
diff --git a/src/main/ipc/handlers.ts b/src/main/ipc/handlers.ts
index c33200e6..f0c597d4 100644
--- a/src/main/ipc/handlers.ts
+++ b/src/main/ipc/handlers.ts
@@ -58,6 +58,7 @@ import type {
   ChatTurnRetractLatestResponse,
   AttachmentPickRequest,
   AttachmentPickResponse,
+  AttachmentCreateFromPathRequest,
   AttachmentProcessResponse,
   AttachmentSaveRequest,
   AiRuntimeSettings,
@@ -1651,12 +1652,8 @@ export function registerHandlers(services: {
         return {
           canceled: false,
           items: await Promise.all(
-            filePaths.map((filePath) =>
-              attachmentService.importAttachmentFromPath({
-                workspaceRootPath,
-                assetBucketId,
-                sourcePath: filePath
-              })
+            filePaths.map(async (filePath) =>
+              await attachmentService.createSourceAttachmentFromPath({ sourcePath: filePath })
             )
           )
         }
@@ -1666,6 +1663,22 @@ export function registerHandlers(services: {
     }
   )
 
+  ipcMain.handle(
+    'attachment-create-from-path',
+    async (_event, payload: AttachmentCreateFromPathRequest): Promise<AttachmentProcessResponse> => {
+      try {
+        const attachment = await attachmentService.createSourceAttachmentFromPath({
+          sourcePath: payload.sourcePath,
+          mimeType: payload.mimeType,
+          kind: payload.kind
+        })
+        return { success: true, attachment }
+      } catch (error) {
+        return { success: false, error: getErrorMessage(error) }
+      }
+    }
+  )
+
   ipcMain.handle(
     'attachment-save-file',
     async (_event, payload: AttachmentSaveRequest): Promise<AttachmentProcessResponse> => {
diff --git a/src/main/services/ai/human/constants.ts b/src/main/services/ai/human/constants.ts
index 501c1334..1d647716 100644
--- a/src/main/services/ai/human/constants.ts
+++ b/src/main/services/ai/human/constants.ts
@@ -44,8 +44,7 @@ export const HUMAN_DECISION_HINT_CODES = [
   'brain_output_schema_invalid',
   'brain_todolist_incomplete',
   'brain_content_safety',
-  'hand_call_invalid',
-  'hand_workspace_boundary_blocked'
+  'hand_call_invalid'
 ] as const
 
 export const HUMAN_MAX_ACTIVE_TOOLS = 25
diff --git a/src/main/services/ai/human/node/handNode/decisionHints.ts b/src/main/services/ai/human/node/handNode/decisionHints.ts
index dd82aae6..9175fda3 100644
--- a/src/main/services/ai/human/node/handNode/decisionHints.ts
+++ b/src/main/services/ai/human/node/handNode/decisionHints.ts
@@ -7,13 +7,6 @@ type IndexedResult = {
   message: string
 }
 
-const WORKSPACE_BOUNDARY_PATTERNS = [
-  'workspace boundary check failed:',
-  'relative path escapes workspace boundary:',
-  'path out of workspace boundary:',
-  'cwd is out of workspace boundary'
-] as const
-
 const INVALID_INPUT_PATTERNS = ['tool call schema invalid', 'invalid_input', 'empty command'] as const
 
 const hasPattern = (value: string, patterns: readonly string[]): boolean =>
@@ -36,34 +29,18 @@ export const buildHandCallInvalidHint = (items: IndexedResult[]): Extract<HumanD
   }
 })
 
-export const buildHandWorkspaceBoundaryBlockedHint = (
-  items: IndexedResult[]
-): Extract<HumanDecisionHint, { code: 'hand_workspace_boundary_blocked' }> => ({
-  code: 'hand_workspace_boundary_blocked',
-  detail: {
-    blockedCalls: items
-  }
-})
-
 export const deriveGroupedHandFailureHints = (input: {
   calls: HandCallList
   results: readonly ToolCallResult[]
 }): {
   callInvalidHint?: Extract<HumanDecisionHint, { code: 'hand_call_invalid' }>
-  workspaceBoundaryHint?: Extract<HumanDecisionHint, { code: 'hand_workspace_boundary_blocked' }>
 } => {
   const invalidCalls: IndexedResult[] = []
-  const blockedCalls: IndexedResult[] = []
   input.results.forEach((result, callIndex) => {
     if (result.ok) return
     const message = resolveToolResultErrorText(result)
     if (!message) return
 
-    if (hasPattern(message, WORKSPACE_BOUNDARY_PATTERNS)) {
-      blockedCalls.push(buildIndexedResult({ callIndex, result, message }))
-      return
-    }
-
     if (hasPattern(message, INVALID_INPUT_PATTERNS)) {
       invalidCalls.push(buildIndexedResult({ callIndex, result, message }))
       return
@@ -72,8 +49,6 @@ export const deriveGroupedHandFailureHints = (input: {
   })
 
   return {
-    callInvalidHint: invalidCalls.length > 0 ? buildHandCallInvalidHint(invalidCalls) : undefined,
-    workspaceBoundaryHint:
-      blockedCalls.length > 0 ? buildHandWorkspaceBoundaryBlockedHint(blockedCalls) : undefined
+    callInvalidHint: invalidCalls.length > 0 ? buildHandCallInvalidHint(invalidCalls) : undefined
   }
 }
diff --git a/src/main/services/ai/human/node/handNode/followupSignals.ts b/src/main/services/ai/human/node/handNode/followupSignals.ts
index e4261268..496f9e11 100644
--- a/src/main/services/ai/human/node/handNode/followupSignals.ts
+++ b/src/main/services/ai/human/node/handNode/followupSignals.ts
@@ -116,9 +116,7 @@ export const deriveHandFollowupSignals = (input: {
   }
 
   return {
-    decisionHint:
-      groupedFailureHints.workspaceBoundaryHint
-      || groupedFailureHints.callInvalidHint
+    decisionHint: groupedFailureHints.callInvalidHint
   }
 }
 
diff --git a/src/main/services/ai/human/prompts/decisionHints.ts b/src/main/services/ai/human/prompts/decisionHints.ts
index bcaa6784..50ce11ae 100644
--- a/src/main/services/ai/human/prompts/decisionHints.ts
+++ b/src/main/services/ai/human/prompts/decisionHints.ts
@@ -78,13 +78,6 @@ export const renderDecisionHintForBrain = (hint: HumanDecisionHint): string => {
           (item) => `calls[${String(item.callIndex)}] 的工具 \`${item.toolName}\`：${item.message}`
         )
       ].join('\n')
-    case 'hand_workspace_boundary_blocked':
-      return [
-        '上一轮 hand 工具调用命中了工作区边界保护，因此相关调用没有执行。',
-        ...hint.detail.blockedCalls.map(
-          (item) => `calls[${String(item.callIndex)}] 的工具 \`${item.toolName}\`：${item.message}`
-        )
-      ].join('\n')
     case 'brain_content_safety':
       return hint.detail.message
     case 'brain_todolist_incomplete':
diff --git a/src/main/services/ai/human/schema.ts b/src/main/services/ai/human/schema.ts
index 0ed7aa3e..e4ec41be 100644
--- a/src/main/services/ai/human/schema.ts
+++ b/src/main/services/ai/human/schema.ts
@@ -231,20 +231,6 @@ export const humanDecisionHintSchema = z.discriminatedUnion('code', [
         )
         .min(1)
     })
-  }),
-  z.object({
-    code: z.literal('hand_workspace_boundary_blocked'),
-    detail: z.object({
-      blockedCalls: z
-        .array(
-          z.object({
-            callIndex: z.number().int().min(0),
-            toolName: z.string().min(1),
-            message: z.string().min(1)
-          })
-        )
-        .min(1)
-    })
   })
 ])
 
diff --git a/src/main/services/ai/human/tools/docx/review/RunDocxEditTracker.ts b/src/main/services/ai/human/tools/docx/review/RunDocxEditTracker.ts
index d0e21acd..6308bb8c 100644
--- a/src/main/services/ai/human/tools/docx/review/RunDocxEditTracker.ts
+++ b/src/main/services/ai/human/tools/docx/review/RunDocxEditTracker.ts
@@ -10,6 +10,7 @@ import type { RunDocxEditDocument } from './types'
 import { buildDocxChangeSummary, calculateFileStats, sanitizeFileName } from './utils'
 import { buildDocxApplyArtifactPaths } from './viewProjection'
 import { projectReviewView } from './viewProjector'
+import { isPathInsideRoot } from '../../terminal/commandPolicy'
 
 type RunDocxEditState = {
   sessionId: string
@@ -97,12 +98,16 @@ export class RunDocxEditTracker {
     const state = this.runEdits.get(input.runId)
     if (!state) return []
 
-    const changedDocuments = [...state.documentBySourcePath.values()].filter(
-      (document) =>
-        document.dirtyChangeCount > 0 &&
-        document.replaySession &&
-        projectReviewView(document.replaySession).some((node) => node.reviewState !== 'normal')
-    )
+    const changedDocuments = [...state.documentBySourcePath.values()].filter((document) => {
+      if (
+        document.dirtyChangeCount <= 0 ||
+        !document.replaySession ||
+        !projectReviewView(document.replaySession).some((node) => node.reviewState !== 'normal')
+      ) {
+        return false
+      }
+      return isPathInsideRoot(document.sourcePath, input.workspaceRootPath)
+    })
     if (changedDocuments.length === 0) {
       this.runEdits.delete(input.runId)
       return []
diff --git a/src/main/services/ai/human/tools/docx/runtime.ts b/src/main/services/ai/human/tools/docx/runtime.ts
index b18a60fd..26ac6d48 100644
--- a/src/main/services/ai/human/tools/docx/runtime.ts
+++ b/src/main/services/ai/human/tools/docx/runtime.ts
@@ -25,7 +25,7 @@ import type {
 } from './types'
 import { getDocxWorkerClient } from './worker/docxWorkerClient'
 import type { DocxWorkerRequest, DocxWorkerResponse } from './worker/types'
-import { resolveWorkspacePath } from '../terminal/commandPolicy'
+import { resolveToolPath } from '../terminal/commandPolicy'
 import { isSemanticSearchableBlock, splitEmbeddingRows } from './semanticSearch'
 import { createToolEventEmitter } from '../utils/toolEvents'
 import type { ToolEventEmitter } from '../utils/toolEvents'
@@ -324,10 +324,9 @@ export const createDocxToolRuntime = (input: DocxCapabilityToolsInput): DocxTool
   }
 
   const resolveReadableWordPath = (params: { cwd: string; rawPath: string }): string | null => {
-    const resolved = resolveWorkspacePath({
+    const resolved = resolveToolPath({
       rawPath: params.rawPath,
-      cwd: params.cwd,
-      rootPath: workspaceRootPath
+      cwd: params.cwd
     })
     if (!resolved) return null
     if (!isReadableWordPath(resolved)) return null
@@ -1331,7 +1330,7 @@ export const createDocxToolRuntime = (input: DocxCapabilityToolsInput): DocxTool
           toolName: params.toolName,
           toolCallId: params.toolCallId,
           reason: 'invalid_input',
-          error: 'sourcePath must be a workspace-bound .doc or .docx path'
+          error: 'sourcePath must be a .doc or .docx path'
         })
       }
     }
@@ -1383,7 +1382,7 @@ export const createDocxToolRuntime = (input: DocxCapabilityToolsInput): DocxTool
           toolName: params.toolName,
           toolCallId: params.toolCallId,
           reason: 'invalid_input',
-          error: 'sourcePath must be a workspace-bound .docx path'
+          error: 'sourcePath must be a .docx path'
         })
       }
     }
diff --git a/src/main/services/ai/human/tools/docx/tools/writeTools.ts b/src/main/services/ai/human/tools/docx/tools/writeTools.ts
index 088af3a3..976af44b 100644
--- a/src/main/services/ai/human/tools/docx/tools/writeTools.ts
+++ b/src/main/services/ai/human/tools/docx/tools/writeTools.ts
@@ -1008,7 +1008,7 @@ export const buildDocxWriteTools = (runtime: DocxToolRuntime): StructuredToolInt
             toolName,
             toolCallId,
             reason: 'invalid_input',
-            error: 'sourcePath must be a workspace-bound .docx path'
+            error: 'sourcePath must be a .docx path'
           }),
           activity: {
             actionType: DOCX_EDIT_TOOL_SPEC.activityActionType!
diff --git a/src/main/services/ai/human/tools/excel/runtime.ts b/src/main/services/ai/human/tools/excel/runtime.ts
index 658b3741..af9eea31 100644
--- a/src/main/services/ai/human/tools/excel/runtime.ts
+++ b/src/main/services/ai/human/tools/excel/runtime.ts
@@ -4,7 +4,7 @@ import fs from 'node:fs/promises'
 import path from 'node:path'
 import { createHash, randomUUID } from 'node:crypto'
 import type { JsonObject } from '../../../../../../shared/types'
-import { resolveWorkspacePath } from '../terminal/commandPolicy'
+import { isPathInsideRoot, resolveToolPath } from '../terminal/commandPolicy'
 import { createToolEventEmitter } from '../utils/toolEvents'
 import { emitFileArtifactEvent } from '../../../events/fileArtifacts'
 import type { ExcelCapabilityToolsInput, ExcelRuntimeState, ExcelToolRuntime } from './types'
@@ -684,12 +684,11 @@ export const createExcelToolRuntime = (input: ExcelCapabilityToolsInput): ExcelT
     sheetLineageByPath: new Map()
   }
   const resolvePath = (rawPath: string, mode: 'read' | 'write' = 'read'): string => {
-    const resolved = resolveWorkspacePath({
+    const resolved = resolveToolPath({
       rawPath,
-      cwd: input.workspaceRootPath,
-      rootPath: input.workspaceRootPath
+      cwd: input.workspaceRootPath
     })
-    if (!resolved) throw new Error('Excel 文件必须位于当前工作区内')
+    if (!resolved) throw new Error('Excel 文件路径无效')
     assertExcelPath(resolved, mode)
     return resolved
   }
@@ -931,6 +930,29 @@ export const createExcelToolRuntime = (input: ExcelCapabilityToolsInput): ExcelT
     )
     if (operationChanges.length === 0)
       return toJsonObject({ sourcePath, changed: false, changes: [], postWriteReadback: [] })
+    const postWriteReadback = operationChanges.map((change) => {
+      const cell = afterWorkbook.getWorksheet(change.sheetName)?.getCell(change.address)
+      return cell
+        ? { sheetName: change.sheetName, ...getCellSnapshot(cell) }
+        : {
+            sheetName: change.sheetName,
+            address: change.address,
+            value: null,
+            displayValue: '',
+            type: 'blank'
+          }
+    })
+    if (!isPathInsideRoot(sourcePath, input.workspaceRootPath)) {
+      await atomicReplace(sourcePath, afterBytes)
+      state.currentBytesByPath.set(sourcePath, afterBytes)
+      state.sheetLineageByPath.set(sourcePath, sheetLineage)
+      return toJsonObject({
+        sourcePath,
+        changed: true,
+        changes: operationChanges,
+        postWriteReadback
+      })
+    }
     const baseline = state.baselineBytesByPath.get(sourcePath)
     const baselineWorkbook = baseline ? await loadWorkbook(baseline) : null
     const diffResult = await buildDiffWorkbook({
@@ -1011,18 +1033,6 @@ export const createExcelToolRuntime = (input: ExcelCapabilityToolsInput): ExcelT
       insertCount: record.insertCount,
       deleteCount: record.deleteCount
     })
-    const postWriteReadback = operationChanges.map((change) => {
-      const cell = afterWorkbook.getWorksheet(change.sheetName)?.getCell(change.address)
-      return cell
-        ? { sheetName: change.sheetName, ...getCellSnapshot(cell) }
-        : {
-            sheetName: change.sheetName,
-            address: change.address,
-            value: null,
-            displayValue: '',
-            type: 'blank'
-          }
-    })
     return toJsonObject({
       sourcePath,
       changed: true,
diff --git a/src/main/services/ai/human/tools/imageGeneration/runtime.ts b/src/main/services/ai/human/tools/imageGeneration/runtime.ts
index 5f8364e2..c56a1b2f 100644
--- a/src/main/services/ai/human/tools/imageGeneration/runtime.ts
+++ b/src/main/services/ai/human/tools/imageGeneration/runtime.ts
@@ -7,6 +7,7 @@ import { DOMParser } from '@xmldom/xmldom'
 import type { AiFileChangeOperation, AiFileChangeRecord } from '../../../../../../shared/types'
 import { emitFileArtifactEvent } from '../../../events/fileArtifacts'
 import type { WorkspaceCapabilityBuildInput } from '../types'
+import { isPathInsideRoot } from '../terminal/commandPolicy'
 import { resolveSafeTextFilePath, withTextFileMutationQueue } from '../textFile/textFileUtils'
 import type { ImageGenerateInput, ImageGenerateOutput } from './schemas'
 
@@ -203,6 +204,23 @@ export const generateImage = async (
 
     const operation: AiFileChangeOperation =
       existingRecord?.operation || (beforeBuffer ? 'updated' : 'created')
+    if (!isPathInsideRoot(outputPath, buildInput.workspaceRootPath)) {
+      if (beforeBuffer) {
+        const currentBuffer = await fs.readFile(outputPath)
+        if (!currentBuffer.equals(beforeBuffer)) {
+          throw new Error(`Cannot write ${args.outputPath}: the file changed during the operation.`)
+        }
+        await atomicReplaceFile({
+          outputPath,
+          content: outputBuffer,
+          mode: beforeMode,
+          operationId
+        })
+      } else {
+        await fs.writeFile(outputPath, outputBuffer, { flag: 'wx', mode: 0o644 })
+      }
+      return { outputPath: args.outputPath }
+    }
     const artifactRoot = path.join(
       buildInput.workspaceRootPath,
       '.ncurator',
diff --git a/src/main/services/ai/human/tools/imageRecognition/index.ts b/src/main/services/ai/human/tools/imageRecognition/index.ts
index 75cfda8b..52d2668a 100644
--- a/src/main/services/ai/human/tools/imageRecognition/index.ts
+++ b/src/main/services/ai/human/tools/imageRecognition/index.ts
@@ -7,14 +7,6 @@ import type { ToolFamilyDefinition } from '../types'
 import { IMAGE_ANALYZE_TOOL_SPEC } from './toolSpecs'
 import { createVisualRecognitionService, getImageMimeType } from '../visualRecognition/service'
 
-const isPathInsideWorkspace = (input: {
-  workspaceRootPath: string
-  targetPath: string
-}): boolean => {
-  const relativePath = path.relative(input.workspaceRootPath, input.targetPath)
-  return relativePath === '' || (!relativePath.startsWith('..') && !path.isAbsolute(relativePath))
-}
-
 export const imageRecognitionToolFamily: ToolFamilyDefinition = {
   familyId: 'image-recognition',
   buildTools: ({ ctx, runId, taskId }) => {
@@ -44,22 +36,6 @@ export const imageRecognitionToolFamily: ToolFamilyDefinition = {
               })
               return payload
             }
-            if (
-              !ctx.workspace?.rootPath ||
-              !isPathInsideWorkspace({
-                workspaceRootPath: ctx.workspace.rootPath,
-                targetPath: sourcePath
-              })
-            ) {
-              const payload = { error: '图片路径必须位于当前工作区内' }
-              session.fail(payload.error, undefined, {
-                toolName: IMAGE_ANALYZE_TOOL_SPEC.name,
-                ok: false,
-                data: payload
-              })
-              return payload
-            }
-
             try {
               const result = await visualRecognitionService.recognizeImage({
                 path: sourcePath,
diff --git a/src/main/services/ai/human/tools/pdf/runtime.ts b/src/main/services/ai/human/tools/pdf/runtime.ts
index acb7a2d5..705bd377 100644
--- a/src/main/services/ai/human/tools/pdf/runtime.ts
+++ b/src/main/services/ai/human/tools/pdf/runtime.ts
@@ -4,7 +4,7 @@ import type { AiToolCallResult, JsonObject } from '../../../../../../shared/type
 import type { PdfOpenResult } from '../../../../pdf/types'
 import { getPdfWorkerClient } from '../../../../pdf/worker/pdfWorkerClient'
 import type { PdfWorkerRequest, PdfWorkerResponse } from '../../../../pdf/worker/types'
-import { isPathInsideRoot, resolveWorkspacePath } from '../terminal/commandPolicy'
+import { resolveToolPath } from '../terminal/commandPolicy'
 import { createToolEventEmitter } from '../utils/toolEvents'
 import type { ToolEventEmitter } from '../utils/toolEvents'
 import type { PdfCapabilityToolsInput } from './types'
@@ -96,22 +96,15 @@ export const createPdfToolRuntime = (input: PdfCapabilityToolsInput): PdfToolRun
     await getPdfWorkerClient().call({ ...request, runId: input.runId } as PdfWorkerRequest)
 
   const resolvePdfPath = async (rawPath: string): Promise<string> => {
-    const lexicalPath = resolveWorkspacePath({
+    const lexicalPath = resolveToolPath({
       rawPath,
-      cwd: workspaceRootPath,
-      rootPath: workspaceRootPath
+      cwd: workspaceRootPath
     })
-    if (!lexicalPath) throw new Error('PDF 路径必须位于当前工作区内')
+    if (!lexicalPath) throw new Error('PDF 路径无效')
     if (path.extname(lexicalPath).toLowerCase() !== '.pdf')
       throw new Error('sourcePath 必须是 .pdf 文件')
 
-    const [realWorkspaceRoot, realSourcePath] = await Promise.all([
-      fs.realpath(workspaceRootPath),
-      fs.realpath(lexicalPath)
-    ])
-    if (!isPathInsideRoot(realSourcePath, realWorkspaceRoot)) {
-      throw new Error('PDF 真实路径必须位于当前工作区内')
-    }
+    const realSourcePath = await fs.realpath(lexicalPath)
     if (path.extname(realSourcePath).toLowerCase() !== '.pdf')
       throw new Error('sourcePath 必须是 .pdf 文件')
     const stat = await fs.stat(realSourcePath)
diff --git a/src/main/services/ai/human/tools/ppt/runtime.ts b/src/main/services/ai/human/tools/ppt/runtime.ts
index 71095d9c..9a1cd8ae 100644
--- a/src/main/services/ai/human/tools/ppt/runtime.ts
+++ b/src/main/services/ai/human/tools/ppt/runtime.ts
@@ -96,7 +96,7 @@ import {
 } from 'pptx-kit'
 import type { AiFileChangeRecord, JsonObject } from '../../../../../../shared/types'
 import { fileExists } from '../docx/review/utils'
-import { resolveWorkspacePath } from '../terminal/commandPolicy'
+import { isPathInsideRoot, resolveToolPath } from '../terminal/commandPolicy'
 import {
   compilePptSlideHtml,
   normalizePptColor,
@@ -328,12 +328,11 @@ const resolveAssetBytes = async (input: {
       throw new Error(`无效的本地 file URL: ${input.rawPath}`)
     }
   }
-  const resolved = resolveWorkspacePath({
+  const resolved = resolveToolPath({
     rawPath,
-    cwd: path.dirname(input.sourcePath),
-    rootPath: input.workspaceRootPath
+    cwd: path.dirname(input.sourcePath)
   })
-  if (!resolved) throw new Error(`资源路径超出工作区: ${input.rawPath}`)
+  if (!resolved) throw new Error(`资源路径无效: ${input.rawPath}`)
   return new Uint8Array(await fs.readFile(resolved))
 }
 
@@ -1144,13 +1143,12 @@ export const createPptToolRuntime = (input: PptToolRuntime['input']): PptToolRun
   const workspaceRootPath = path.resolve(input.workspaceRootPath)
 
   const resolvePptPath = (rawPath: string): string => {
-    const resolved = resolveWorkspacePath({
+    const resolved = resolveToolPath({
       rawPath,
-      cwd: workspaceRootPath,
-      rootPath: workspaceRootPath
+      cwd: workspaceRootPath
     })
     if (!resolved || !resolved.toLowerCase().endsWith('.pptx')) {
-      throw new Error('sourcePath 必须是当前工作区内的 .pptx 文件')
+      throw new Error('sourcePath 必须是 .pptx 文件')
     }
     return resolved
   }
@@ -1504,6 +1502,13 @@ export const createPptToolRuntime = (input: PptToolRuntime['input']): PptToolRun
     const records: AiFileChangeRecord[] = []
     for (const document of documents.values()) {
       if (!document.dirty) continue
+      if (!isPathInsideRoot(document.sourcePath, workspaceRootPath)) {
+        document.dirty = false
+        document.movedSlideIds.clear()
+        document.movedElementIds.clear()
+        document.elementLineage.clear()
+        continue
+      }
       const issues = validatePresentation(document.presentation).filter(
         (issue) => issue.severity === 'error'
       )
diff --git a/src/main/services/ai/human/tools/terminal/TerminalSessionManager.ts b/src/main/services/ai/human/tools/terminal/TerminalSessionManager.ts
index 8c08185f..bf24b59e 100644
--- a/src/main/services/ai/human/tools/terminal/TerminalSessionManager.ts
+++ b/src/main/services/ai/human/tools/terminal/TerminalSessionManager.ts
@@ -5,7 +5,6 @@ import { chmod, mkdtemp, rm, unlink, writeFile } from 'node:fs/promises'
 import * as pty from 'node-pty'
 import type { IPty } from 'node-pty'
 import type { AiRuntimePlatform } from '../../../types'
-import { isPathInsideAnyRoot } from './commandPolicy'
 import { buildTerminalEnvironment } from './environment/TerminalEnvironment'
 import { getTerminalPlatformAdapter, type TerminalPlatformAdapter } from './platform'
 import { TerminalProtocol, type TerminalProtocolEvent } from './protocol/TerminalProtocol'
@@ -71,7 +70,6 @@ type ManagedTerminalSession = {
   chatSessionId: string
   workspaceId: string
   runtimeDirectory: string
-  allowedRootPaths: string[]
   adapter: TerminalPlatformAdapter
   protocol: TerminalProtocol
   process: IPty
@@ -195,8 +193,7 @@ export class TerminalSessionManager {
 
     const leadingCwd = await session.adapter.resolveCommandCwd({
       command: input.command,
-      currentPath: session.currentTerminalPath,
-      allowedRootPaths: session.allowedRootPaths
+      currentPath: session.currentTerminalPath
     })
     if (leadingCwd) session.currentTerminalPath = leadingCwd
 
@@ -397,14 +394,6 @@ export class TerminalSessionManager {
     if (activeCount >= this.maxSessionsPerChat) throw new Error('terminal_session_limit_reached')
 
     const rootPath = path.resolve(input.workspaceRootPath)
-    const allowedRootPaths = Array.from(
-      new Set(
-        [rootPath, input.userRuntimeRootPath]
-          .map((root) => String(root || '').trim())
-          .filter(Boolean)
-          .map((root) => path.resolve(root))
-      )
-    )
     const ready = createDeferred()
     const exited = createDeferred()
     const runtimeDirectory = await mkdtemp(path.join(os.tmpdir(), 'ncurator-terminal-runtime-'))
@@ -434,7 +423,6 @@ export class TerminalSessionManager {
       chatSessionId: input.chatSessionId,
       workspaceId: input.workspaceId,
       runtimeDirectory,
-      allowedRootPaths,
       adapter,
       protocol,
       process: terminalProcess,
@@ -591,7 +579,7 @@ export class TerminalSessionManager {
 
   private updateCurrentPath(session: ManagedTerminalSession, encodedCwd: string): void {
     const nextPath = decodeCwd(encodedCwd)
-    if (nextPath && isPathInsideAnyRoot(nextPath, session.allowedRootPaths)) {
+    if (nextPath && path.isAbsolute(nextPath)) {
       session.currentTerminalPath = path.resolve(nextPath)
     }
   }
diff --git a/src/main/services/ai/human/tools/terminal/commandPolicy.ts b/src/main/services/ai/human/tools/terminal/commandPolicy.ts
index b803056f..9976ce78 100644
--- a/src/main/services/ai/human/tools/terminal/commandPolicy.ts
+++ b/src/main/services/ai/human/tools/terminal/commandPolicy.ts
@@ -1,4 +1,3 @@
-import os from 'node:os'
 import path from 'node:path'
 import type { AiRuntimePlatform } from '../../../types'
 import { getAiRuntimePlatform } from '../../../utils/platform'
@@ -14,33 +13,6 @@ import {
   parseTerminalCommandTokens as parsePolicyCommandTokens
 } from './policy/shellSyntax'
 
-type PathArgumentStrategy = 'all_non_option_args' | 'skip_first_non_option_arg' | 'none'
-
-const COMMAND_PATH_ARGUMENT_STRATEGIES: Partial<Record<string, PathArgumentStrategy>> = {
-  echo: 'none',
-  printf: 'none',
-  git: 'none',
-  node: 'none',
-  python: 'none',
-  python3: 'none',
-  rg: 'skip_first_non_option_arg',
-  grep: 'skip_first_non_option_arg',
-  sed: 'skip_first_non_option_arg',
-  'get-content': 'all_non_option_args',
-  'get-childitem': 'all_non_option_args',
-  'select-object': 'none',
-  'select-string': 'all_non_option_args',
-  'test-path': 'all_non_option_args',
-  'resolve-path': 'all_non_option_args',
-  'copy-item': 'all_non_option_args',
-  'move-item': 'all_non_option_args',
-  'remove-item': 'all_non_option_args',
-  'new-item': 'all_non_option_args',
-  'set-content': 'all_non_option_args',
-  'add-content': 'all_non_option_args',
-  'out-file': 'all_non_option_args'
-}
-
 const EXCEL_FILE_PATTERN = /\.(?:xlsx|xlsm|xltx|xltm)(?:['"\s;|&]|$)/i
 
 export const isTerminalExcelMutationCommand = (command: string): boolean => {
@@ -90,59 +62,6 @@ export const analyzeTerminalCommandPolicy = (
 const isRedirectionOperator = (token: string): boolean =>
   token === '>' || token === '>>' || token === '1>' || token === '1>>'
 
-const isRelativeEscapeToken = (token: string): boolean => {
-  const normalized = String(token || '')
-    .trim()
-    .replace(/\\/g, '/')
-  return (
-    normalized === '..' ||
-    normalized.startsWith('../') ||
-    normalized.includes('/../') ||
-    normalized.endsWith('/..')
-  )
-}
-
-const collectBoundaryPathTokens = (tokens: string[]): string[] => {
-  if (tokens.length <= 1) return []
-
-  const command = String(tokens[0] || '').toLowerCase()
-  const strategy = COMMAND_PATH_ARGUMENT_STRATEGIES[command] || 'all_non_option_args'
-  const pathTokens: string[] = []
-  let skippedNonOptionCount = 0
-
-  for (let index = 1; index < tokens.length; index += 1) {
-    const token = tokens[index]
-    if (!token) continue
-
-    if (isRedirectionOperator(token)) {
-      const next = tokens[index + 1]
-      if (next && !next.startsWith('-')) {
-        pathTokens.push(next)
-        index += 1
-      }
-      continue
-    }
-
-    const inlineRedirection = token.match(/^(?:1?>>?)(.+)$/)
-    if (inlineRedirection?.[1]) {
-      pathTokens.push(inlineRedirection[1])
-      continue
-    }
-
-    if (token.startsWith('-')) continue
-    if (strategy === 'none') continue
-    if (strategy === 'skip_first_non_option_arg' && skippedNonOptionCount === 0) {
-      skippedNonOptionCount += 1
-      continue
-    }
-
-    skippedNonOptionCount += 1
-    pathTokens.push(token)
-  }
-
-  return pathTokens
-}
-
 export const isPathInsideRoot = (candidatePath: string, rootPath: string) => {
   const useWindowsPaths =
     /^[a-z]:[\\/]/i.test(candidatePath) ||
@@ -156,56 +75,14 @@ export const isPathInsideRoot = (candidatePath: string, rootPath: string) => {
   return rel === '' || (!rel.startsWith('..') && !pathApi.isAbsolute(rel))
 }
 
-export const isPathInsideAnyRoot = (candidatePath: string, rootPaths: readonly string[]): boolean =>
-  rootPaths.some((rootPath) => isPathInsideRoot(candidatePath, rootPath))
-
-export const resolveWorkspacePath = (input: {
+export const resolveToolPath = (input: {
   rawPath: string
   cwd: string
-  rootPath: string
 }): string | null => {
   const raw = String(input.rawPath || '').trim()
   if (!raw) return null
-  const base = raw.startsWith('/') ? raw : path.resolve(input.cwd, raw)
-  const resolved = path.resolve(base)
-  if (!isPathInsideRoot(resolved, input.rootPath)) return null
-  return resolved
-}
-
-export const checkWorkspaceBoundary = (
-  command: string,
-  rootPaths: string | readonly string[],
-  platform: AiRuntimePlatform = getAiRuntimePlatform()
-): { ok: true } | { ok: false; reason: string } => {
-  const allowedRootPaths = (Array.isArray(rootPaths) ? rootPaths : [rootPaths])
-    .map((rootPath) => String(rootPath || '').trim())
-    .filter(Boolean)
-  if (allowedRootPaths.length === 0) {
-    return { ok: false, reason: 'allowed root path is missing' }
-  }
-
-  for (const segment of parseTerminalCommandSegments(command, {
-    windowsStyle: isWindowsPlatform(platform)
-  })) {
-    for (const candidatePath of collectBoundaryPathTokens(segment.tokens)) {
-      if (isRelativeEscapeToken(candidatePath)) {
-        return { ok: false, reason: `relative path escapes workspace boundary: ${candidatePath}` }
-      }
-      const expandedCandidatePath = /^~[\\/]/.test(candidatePath)
-        ? path.join(os.homedir(), candidatePath.slice(2))
-        : candidatePath
-      if (
-        (expandedCandidatePath.startsWith('/') ||
-          /^[a-z]:[\\/]/i.test(expandedCandidatePath) ||
-          /^\\\\/.test(expandedCandidatePath)) &&
-        !isPathInsideAnyRoot(expandedCandidatePath, allowedRootPaths)
-      ) {
-        return { ok: false, reason: `path out of allowed boundary: ${candidatePath}` }
-      }
-    }
-  }
-
-  return { ok: true }
+  const base = path.isAbsolute(raw) ? raw : path.resolve(input.cwd, raw)
+  return path.resolve(base)
 }
 
 const extractRedirectionPaths = (tokens: string[]): string[] => {
diff --git a/src/main/services/ai/human/tools/terminal/platform/TerminalPlatformAdapter.ts b/src/main/services/ai/human/tools/terminal/platform/TerminalPlatformAdapter.ts
index f2dc6f90..9039ed5c 100644
--- a/src/main/services/ai/human/tools/terminal/platform/TerminalPlatformAdapter.ts
+++ b/src/main/services/ai/human/tools/terminal/platform/TerminalPlatformAdapter.ts
@@ -11,7 +11,6 @@ export type TerminalShellConfig = {
 export type ResolveCommandCwdInput = {
   command: string
   currentPath: string
-  allowedRootPaths: readonly string[]
 }
 
 export interface TerminalPlatformAdapter {
diff --git a/src/main/services/ai/human/tools/terminal/platform/WindowsTerminalAdapter.ts b/src/main/services/ai/human/tools/terminal/platform/WindowsTerminalAdapter.ts
index 776f7da9..67844737 100644
--- a/src/main/services/ai/human/tools/terminal/platform/WindowsTerminalAdapter.ts
+++ b/src/main/services/ai/human/tools/terminal/platform/WindowsTerminalAdapter.ts
@@ -2,7 +2,6 @@ import path from 'node:path'
 import { stat } from 'node:fs/promises'
 import { execFile } from 'node:child_process'
 import type { IPty } from 'node-pty'
-import { isPathInsideAnyRoot } from '../commandPolicy'
 import type { TerminalProtocol } from '../protocol/TerminalProtocol'
 import type { ResolveCommandCwdInput, TerminalPlatformAdapter } from './TerminalPlatformAdapter'
 
@@ -73,7 +72,6 @@ export class WindowsTerminalAdapter implements TerminalPlatformAdapter {
     const requestedPath = match[1] || match[2] || match[3]
     if (!requestedPath) return undefined
     const nextPath = path.resolve(input.currentPath, requestedPath)
-    if (!isPathInsideAnyRoot(nextPath, input.allowedRootPaths)) return undefined
     try {
       return (await stat(nextPath)).isDirectory() ? nextPath : undefined
     } catch {
diff --git a/src/main/services/ai/human/tools/textFile/textFileTools.ts b/src/main/services/ai/human/tools/textFile/textFileTools.ts
index ee6d6de4..eadf7594 100644
--- a/src/main/services/ai/human/tools/textFile/textFileTools.ts
+++ b/src/main/services/ai/human/tools/textFile/textFileTools.ts
@@ -31,6 +31,7 @@ import {
   resolveSafeTextFilePath,
   withTextFileMutationQueue
 } from './textFileUtils'
+import { isPathInsideRoot } from '../terminal/commandPolicy'
 
 type TextFileToolFailure = Error & {
   resultData?: JsonObject
@@ -38,7 +39,7 @@ type TextFileToolFailure = Error & {
 
 type AppliedEdit = {
   message: string
-  record: AiFileChangeRecord
+  record?: AiFileChangeRecord
 }
 
 type MatchedReplacement = {
@@ -297,6 +298,31 @@ const editTextFile = async (
       throw new Error(`Cannot write ${args.sourcePath}: binary text is not supported.`)
     }
 
+    const trackedByWorkspace = isPathInsideRoot(sourcePath, buildInput.workspaceRootPath)
+    if (!trackedByWorkspace) {
+      if (args.action === 'create') {
+        await fs.writeFile(sourcePath, afterBuffer, { flag: 'wx', mode: 0o644 })
+      } else {
+        const currentBuffer = await fs.readFile(sourcePath)
+        if (calculateBufferChecksum(currentBuffer) !== beforeChecksum) {
+          throw new Error(`Cannot write ${args.sourcePath}: the file changed during the operation.`)
+        }
+        await atomicReplaceFile({
+          sourcePath,
+          content: afterBuffer,
+          mode: beforeMode,
+          operationId
+        })
+      }
+      return {
+        message: buildEditMessage({
+          action: args.action,
+          sourcePath: args.sourcePath,
+          changeCount
+        })
+      }
+    }
+
     let baselineNormalized = beforeNormalized
     let recordBeforeSnapshotPath = beforeBuffer
       ? path.join(
diff --git a/src/main/services/ai/human/tools/textFile/textFileUtils.ts b/src/main/services/ai/human/tools/textFile/textFileUtils.ts
index d4b71b29..62fbfbc6 100644
--- a/src/main/services/ai/human/tools/textFile/textFileUtils.ts
+++ b/src/main/services/ai/human/tools/textFile/textFileUtils.ts
@@ -1,7 +1,7 @@
 import { createHash } from 'node:crypto'
 import fs from 'node:fs/promises'
 import path from 'node:path'
-import { isPathInsideRoot, resolveWorkspacePath } from '../terminal/commandPolicy'
+import { resolveToolPath } from '../terminal/commandPolicy'
 
 export type DecodedTextFile = {
   bom: boolean
@@ -76,21 +76,16 @@ export const resolveSafeTextFilePath = async (input: {
   workspaceRootPath: string
   allowMissing: boolean
 }): Promise<string> => {
-  const resolved = resolveWorkspacePath({
+  const resolved = resolveToolPath({
     rawPath: input.sourcePath,
-    cwd: input.workspaceRootPath,
-    rootPath: input.workspaceRootPath
+    cwd: input.workspaceRootPath
   })
   if (!resolved) throw new Error(`Invalid file path: ${input.sourcePath}.`)
 
-  const realRoot = await fs.realpath(input.workspaceRootPath)
   const existingAncestor = await findExistingAncestor(
     input.allowMissing ? path.dirname(resolved) : resolved
   )
-  const realAncestor = await fs.realpath(existingAncestor)
-  if (!isPathInsideRoot(realAncestor, realRoot)) {
-    throw new Error(`Invalid file path: ${input.sourcePath}.`)
-  }
+  await fs.realpath(existingAncestor)
 
   if (!input.allowMissing) {
     const stats = await fs.lstat(resolved)
@@ -98,10 +93,7 @@ export const resolveSafeTextFilePath = async (input: {
       throw new Error(`Cannot access ${input.sourcePath}: symbolic links are not supported.`)
     if (!stats.isFile())
       throw new Error(`Cannot access ${input.sourcePath}: path is not a regular file.`)
-    const realTarget = await fs.realpath(resolved)
-    if (!isPathInsideRoot(realTarget, realRoot)) {
-      throw new Error(`Invalid file path: ${input.sourcePath}.`)
-    }
+    await fs.realpath(resolved)
   }
 
   return resolved
diff --git a/src/main/services/ai/prompts/referenceScope.ts b/src/main/services/ai/prompts/referenceScope.ts
index 4bed043d..69035542 100644
--- a/src/main/services/ai/prompts/referenceScope.ts
+++ b/src/main/services/ai/prompts/referenceScope.ts
@@ -50,8 +50,7 @@ export const renderReferenceScopeText = (scope: AiReferenceScope): string => {
   const selectedReferences = scope.selectedReferences || []
   const attachments = scope.attachments || []
   const workspaceText = `工作区：
-- 根目录：${scope.workspace.rootPath}
-- 除系统明确提供的用户级 runtime 路径外，所有任务文件和新生成的产物都必须位于这个工作区内。`
+- 根目录：${scope.workspace.rootPath}`
 
   const fieldGuideText = `字段说明：
 - 类型：资料来源类型，目前支持本地文件、本地目录、网页资料。
diff --git a/src/main/services/ai/runtime.ts b/src/main/services/ai/runtime.ts
index a3a947c5..014813a8 100644
--- a/src/main/services/ai/runtime.ts
+++ b/src/main/services/ai/runtime.ts
@@ -10,6 +10,7 @@ import {
 } from './utils/runContext'
 import type { AiExecutionPermission, AiPreference } from '../../../shared/types'
 import { saveHumanResumeSnapshot } from './utils/resumeSnapshot'
+import { isPathInsideRoot } from './human/tools/terminal/commandPolicy'
 
 const normalizeAiPreference = (value: unknown): AiPreference =>
   value === 'local_sources_relaxed' || value === 'local_sources_strict' ? value : 'default'
@@ -272,6 +273,12 @@ export const createAiRunContext = (payload: AiRunStartPayload, deps: AiRunDeps):
       deps.docxApplyService.discardRun(payload.runId)
     },
     saveFileChangeRecord: async (record) => {
+      if (
+        normalizedWorkspace?.rootPath &&
+        !isPathInsideRoot(record.path, normalizedWorkspace.rootPath)
+      ) {
+        return
+      }
       await deps.saveFileChangeRecord(record, normalizedWorkspace.rootPath)
     },
     listFileChangeRecords: async (input) => {
diff --git a/src/main/services/attachments/AttachmentService.ts b/src/main/services/attachments/AttachmentService.ts
index 30404768..776eb7f1 100644
--- a/src/main/services/attachments/AttachmentService.ts
+++ b/src/main/services/attachments/AttachmentService.ts
@@ -137,6 +137,34 @@ export class AttachmentService {
     return isSupportedAttachment(input)
   }
 
+  public async createSourceAttachmentFromPath(input: {
+    sourcePath: string
+    kind?: ChatAttachment['kind']
+    mimeType?: string
+  }): Promise<ChatAttachment> {
+    const sourcePath = path.resolve(String(input.sourcePath || '').trim())
+    if (!sourcePath || !fs.existsSync(sourcePath)) {
+      throw new Error('附件文件不存在')
+    }
+    const stats = await fs.promises.stat(sourcePath)
+    if (!stats.isFile()) throw new Error('附件必须是文件')
+    if (
+      !this.isSupportedFile({
+        filePath: sourcePath,
+        name: path.basename(sourcePath),
+        mimeType: input.mimeType,
+        kind: input.kind
+      })
+    ) {
+      throw new Error('暂不支持该文件格式')
+    }
+    return this.createAttachmentFromPath({
+      filePath: sourcePath,
+      kind: input.kind,
+      mimeType: input.mimeType
+    })
+  }
+
   public async saveAttachment(input: {
     workspaceRootPath: string
     assetBucketId: string
@@ -169,40 +197,6 @@ export class AttachmentService {
     })
   }
 
-  public async importAttachmentFromPath(input: {
-    workspaceRootPath: string
-    assetBucketId: string
-    sourcePath: string
-    kind?: ChatAttachment['kind']
-    mimeType?: string
-  }): Promise<ChatAttachment> {
-    const sourcePath = path.resolve(String(input.sourcePath || '').trim())
-    if (!sourcePath || !fs.existsSync(sourcePath)) {
-      throw new Error('附件文件不存在')
-    }
-    const displayName = path.basename(sourcePath)
-    if (
-      !this.isSupportedFile({
-        filePath: sourcePath,
-        name: displayName,
-        mimeType: input.mimeType,
-        kind: input.kind
-      })
-    ) {
-      throw new Error('暂不支持该文件格式')
-    }
-
-    const dirPath = await ensureWorkspaceAssetBucket(input.workspaceRootPath, input.assetBucketId)
-    const targetPath = await resolveUniqueTargetPath(dirPath, displayName)
-    await fs.promises.copyFile(sourcePath, targetPath)
-    return this.createAttachmentFromPath({
-      filePath: targetPath,
-      kind: input.kind,
-      mimeType: input.mimeType,
-      displayName
-    })
-  }
-
   public async getFileSize(filePath: string): Promise<number> {
     return (await fs.promises.stat(path.resolve(filePath))).size
   }
diff --git a/src/main/types/store.d.ts b/src/main/types/store.d.ts
index 3c7e5e80..7b32d63d 100644
--- a/src/main/types/store.d.ts
+++ b/src/main/types/store.d.ts
@@ -59,6 +59,7 @@ import {
   ChatAttachment,
   AttachmentPickRequest,
   AttachmentPickResponse,
+  AttachmentCreateFromPathRequest,
   AttachmentProcessResponse,
   AttachmentSaveRequest,
   ChatSessionSnapshotRequest,
@@ -198,6 +199,7 @@ export type {
   ChatAttachment,
   AttachmentPickRequest,
   AttachmentPickResponse,
+  AttachmentCreateFromPathRequest,
   AttachmentProcessResponse,
   AttachmentSaveRequest,
   ChatSessionSnapshotRequest,
diff --git a/src/preload/api.ts b/src/preload/api.ts
index 296708d7..5f9233db 100644
--- a/src/preload/api.ts
+++ b/src/preload/api.ts
@@ -31,6 +31,7 @@ import type {
   ChatMessage,
   AttachmentPickRequest,
   AttachmentPickResponse,
+  AttachmentCreateFromPathRequest,
   AttachmentProcessResponse,
   AttachmentSaveRequest,
   ChatRunEventsRequest,
@@ -188,6 +189,10 @@ export type DesktopApi = {
   readFile: (filePath: string) => Promise<Uint8Array>
   fileExists: (filePath: string) => Promise<boolean>
   attachmentPick: (payload: AttachmentPickRequest) => Promise<AttachmentPickResponse>
+  attachmentGetSourcePath: (file: File) => string
+  attachmentCreateFromPath: (
+    payload: AttachmentCreateFromPathRequest
+  ) => Promise<AttachmentProcessResponse>
   attachmentSaveFile: (payload: AttachmentSaveRequest) => Promise<AttachmentProcessResponse>
   chatSessionList: () => Promise<ChatSessionListItem[]>
   chatSessionSave: (session: ChatSession) => Promise<{ success: boolean; error?: string }>
diff --git a/src/preload/index.ts b/src/preload/index.ts
index 835d1625..98c6708f 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -1,4 +1,4 @@
-import { contextBridge, ipcRenderer } from 'electron'
+import { contextBridge, ipcRenderer, webUtils } from 'electron'
 import { electronAPI } from '@electron-toolkit/preload'
 import type {
   AiRunEvent,
@@ -249,6 +249,11 @@ const api: DesktopApi = {
     emitE2EIpcCall('attachmentPick')
     return ipcRenderer.invoke('attachment-pick', payload)
   },
+  attachmentGetSourcePath: (file) => webUtils.getPathForFile(file),
+  attachmentCreateFromPath: (payload) => {
+    emitE2EIpcCall('attachmentCreateFromPath')
+    return ipcRenderer.invoke('attachment-create-from-path', payload)
+  },
   attachmentSaveFile: (payload) => {
     emitE2EIpcCall('attachmentSaveFile')
     return ipcRenderer.invoke('attachment-save-file', payload)
diff --git a/src/renderer/src/components/workbench/WorkbenchComposer.tsx b/src/renderer/src/components/workbench/WorkbenchComposer.tsx
index 651af81c..9f6ec9de 100644
--- a/src/renderer/src/components/workbench/WorkbenchComposer.tsx
+++ b/src/renderer/src/components/workbench/WorkbenchComposer.tsx
@@ -665,7 +665,7 @@ const WorkbenchComposer: React.FC<WorkbenchComposerProps> = ({
     focusEditorAfterControlChange()
   }, [appendAttachments, focusEditorAfterControlChange, message, requestAttachmentTarget])
 
-  const createAttachmentFromFile = useCallback(
+  const createClipboardAttachmentFromFile = useCallback(
     async (file: File) => {
       const target = await requestAttachmentTarget()
       if (!target) {
@@ -689,10 +689,34 @@ const WorkbenchComposer: React.FC<WorkbenchComposerProps> = ({
     [message, requestAttachmentTarget]
   )
 
+  const createDroppedAttachmentFromFile = useCallback(
+    async (file: File) => {
+      const target = await requestAttachmentTarget()
+      if (!target) return null
+      const sourcePath = window.api.attachmentGetSourcePath(file)
+      if (!sourcePath) {
+        message.warning('无法读取拖入文件的原始路径')
+        return null
+      }
+      const created = await window.api.attachmentCreateFromPath({
+        sourcePath,
+        mimeType: file.type,
+        kind: file.type.startsWith('image/') ? 'image' : 'file'
+      })
+      if (!created.success && created.error) message.warning(created.error)
+      return created.attachment
+        ? { attachment: created.attachment, assetBucketId: target.assetBucketId }
+        : null
+    },
+    [message, requestAttachmentTarget]
+  )
+
   const handleAttachmentFiles = useCallback(
-    (files: File[]): void => {
+    (files: File[], source: 'clipboard' | 'drop'): void => {
       if (files.length === 0) return
-      void Promise.all(files.map(createAttachmentFromFile)).then((items) => {
+      const createAttachment =
+        source === 'drop' ? createDroppedAttachmentFromFile : createClipboardAttachmentFromFile
+      void Promise.all(files.map(createAttachment)).then((items) => {
         const validItems = items.filter(
           (item): item is { attachment: ChatAttachment; assetBucketId: string } => Boolean(item)
         )
@@ -702,11 +726,11 @@ const WorkbenchComposer: React.FC<WorkbenchComposerProps> = ({
         )
       })
     },
-    [appendAttachments, createAttachmentFromFile]
+    [appendAttachments, createClipboardAttachmentFromFile, createDroppedAttachmentFromFile]
   )
 
   useEffect(() => {
-    onFileDropHandlerReady?.(handleAttachmentFiles)
+    onFileDropHandlerReady?.((files) => handleAttachmentFiles(files, 'drop'))
     return () => onFileDropHandlerReady?.(null)
   }, [handleAttachmentFiles, onFileDropHandlerReady])
 
@@ -714,7 +738,7 @@ const WorkbenchComposer: React.FC<WorkbenchComposerProps> = ({
     const files = Array.from(event.clipboardData.files || [])
     if (files.length > 0) {
       event.preventDefault()
-      handleAttachmentFiles(files)
+      handleAttachmentFiles(files, 'clipboard')
       return
     }
     const pastedText = event.clipboardData.getData('text/plain')
diff --git a/src/shared/types.ts b/src/shared/types.ts
index fe801a45..0a8be44b 100644
--- a/src/shared/types.ts
+++ b/src/shared/types.ts
@@ -598,6 +598,12 @@ export type AttachmentProcessResponse = {
   error?: string
 }
 
+export type AttachmentCreateFromPathRequest = {
+  sourcePath: string
+  mimeType?: string
+  kind?: ChatAttachmentKind
+}
+
 export type AttachmentSaveRequest = {
   workspaceRootPath: string
   assetBucketId: string
diff --git a/tests/case/ai/tool/image-generation/image-generate-contract.test.ts b/tests/case/ai/tool/image-generation/image-generate-contract.test.ts
index 1f0cab2a..2764c09f 100644
--- a/tests/case/ai/tool/image-generation/image-generate-contract.test.ts
+++ b/tests/case/ai/tool/image-generation/image-generate-contract.test.ts
@@ -130,7 +130,7 @@ describe('ai tool image-generation backend', () => {
       domain: 'ai',
       suite: 'tool',
       groups: ['image-generation'],
-      description: '验证危险 SVG、非法格式和工作区越界失败时不写入文件。',
+      description: '验证危险 SVG、非法格式会失败，工作区外路径可写入但不产生回退记录。',
       fixtures: [],
       runMode: 'single',
       execute: async (runtime) => {
@@ -170,7 +170,7 @@ describe('ai tool image-generation backend', () => {
         const outsidePath = path.join(path.dirname(runtime.workspaceRoot), 'outside.png')
         const outsideError = await captureError({
           outputPath: outsidePath,
-          svg: '<svg malformed'
+          svg: createSvg('#123456')
         })
         const formatError = await captureError({
           outputPath: 'images/generated.gif',
@@ -222,7 +222,7 @@ describe('ai tool image-generation backend', () => {
             result.cssExternalError.includes('external resource') &&
             result.cssImportError.includes('forbidden CSS import') &&
             result.oversizedError.includes('dimensions are too large') &&
-            result.outsideError.includes('Invalid file path') &&
+            result.outsideError.length === 0 &&
             result.formatError.length > 0 &&
             result.malformedError.includes('parsing failed') &&
             result.preservedUnchanged &&
@@ -231,12 +231,12 @@ describe('ai tool image-generation backend', () => {
             !result.cssExternalExists &&
             !result.cssImportExists &&
             !result.oversizedExists &&
-            !result.outsideExists &&
+            result.outsideExists &&
             result.recordCount === 0 &&
             result.artifactCount === 0,
           {
             name: 'image-generate-rejects-unsafe-input',
-            message: '危险、越界和不支持的图片生成请求必须失败且不产生文件副作用。',
+            message: '危险和不支持的图片生成请求必须失败；工作区外路径可写入但不产生回退记录。',
             data: result
           }
         )
diff --git a/tests/case/ai/tool/pdf/pdf-read-contract.test.ts b/tests/case/ai/tool/pdf/pdf-read-contract.test.ts
index cfc1b96d..0b3a4650 100644
--- a/tests/case/ai/tool/pdf/pdf-read-contract.test.ts
+++ b/tests/case/ai/tool/pdf/pdf-read-contract.test.ts
@@ -229,7 +229,7 @@ describe('ai tool pdf backend', () => {
       domain: 'ai',
       suite: 'tool',
       groups: ['pdf'],
-      description: '验证越界页码、非法 regex、伪 PDF 和逃逸工作区的符号链接会明确失败。',
+      description: '验证越界页码、非法 regex、伪 PDF 会明确失败，工作区外 PDF 可读取。',
       fixtures: [PDF_FIXTURE],
       runMode: 'single',
       execute: async (runtime) => {
@@ -268,7 +268,7 @@ describe('ai tool pdf backend', () => {
           const corrupt = await harness.invoke<PdfFailure>('pdf_inspect', {
             sourcePath: corruptPath
           })
-          const outside = await harness.invoke<PdfFailure>('pdf_inspect', {
+          const outside = await harness.invoke<Record<string, unknown>>('pdf_inspect', {
             sourcePath: escapedPdfPath
           })
           return { outOfRange, badRegex, oversizedRange, corrupt, outside }
@@ -279,16 +279,13 @@ describe('ai tool pdf backend', () => {
       },
       assert: async (result, runtime) => {
         runtime.assertThat(
-          [
-            result.outOfRange,
-            result.badRegex,
-            result.oversizedRange,
-            result.corrupt,
-            result.outside
-          ].every((failure) => failure.ok === false && failure.error.length > 0),
+          [result.outOfRange, result.badRegex, result.oversizedRange, result.corrupt].every(
+            (failure) => failure.ok === false && failure.error.length > 0
+          ) &&
+            typeof result.outside.pageCount === 'number' && result.outside.pageCount > 0,
           {
             name: 'pdf-invalid-inputs-fail-explicitly',
-            message: '所有 PDF 边界错误都应返回明确失败信息。',
+            message: 'PDF 非法输入应明确失败，工作区外 PDF 应可读取。',
             data: result
           }
         )
diff --git a/tests/case/unit/ai/human-decision-hint-contract.test.ts b/tests/case/unit/ai/human-decision-hint-contract.test.ts
index 6e7f1198..9e99d48b 100644
--- a/tests/case/unit/ai/human-decision-hint-contract.test.ts
+++ b/tests/case/unit/ai/human-decision-hint-contract.test.ts
@@ -132,19 +132,6 @@ const HINT_FIXTURES: Record<(typeof HUMAN_DECISION_HINT_CODES)[number], HumanDec
       ]
     }
   },
-  hand_workspace_boundary_blocked: {
-    code: 'hand_workspace_boundary_blocked',
-    detail: {
-      blockedCalls: [
-        {
-          callIndex: 1,
-          toolName: 'terminal_run',
-          message:
-            'workspace boundary check failed: relative path escapes workspace boundary: ../secret.txt'
-        }
-      ]
-    }
-  },
   brain_todolist_incomplete: {
     code: 'brain_todolist_incomplete',
     detail: {
diff --git a/tests/case/unit/ai/human-hand-decision-hints.test.ts b/tests/case/unit/ai/human-hand-decision-hints.test.ts
index 97c8a86a..aac0d0ca 100644
--- a/tests/case/unit/ai/human-hand-decision-hints.test.ts
+++ b/tests/case/unit/ai/human-hand-decision-hints.test.ts
@@ -5,7 +5,6 @@ import {
 } from '../../../../src/main/services/ai/human/node/handNode/followupSignals'
 import {
   buildHandCallInvalidHint,
-  buildHandWorkspaceBoundaryBlockedHint,
   deriveGroupedHandFailureHints
 } from '../../../../src/main/services/ai/human/node/handNode/decisionHints'
 
@@ -43,7 +42,7 @@ describe('ai unit hand decision hints', () => {
     })
   })
 
-  it('groups workspace boundary failures without repeating generic runtime errors', () => {
+  it('does not convert external path failures into a workspace boundary hint', () => {
     const grouped = deriveGroupedHandFailureHints({
       calls: [
         {
@@ -79,15 +78,7 @@ describe('ai unit hand decision hints', () => {
       ]
     })
 
-    expect(grouped.workspaceBoundaryHint).toEqual(
-      buildHandWorkspaceBoundaryBlockedHint([
-        {
-          callIndex: 0,
-          toolName: 'terminal_run',
-          message: 'workspace boundary check failed: relative path escapes workspace boundary: ../secret.txt'
-        }
-      ])
-    )
+    expect(grouped).not.toHaveProperty('workspaceBoundaryHint')
     expect(grouped).not.toHaveProperty('toolRuntimeFailedHint')
   })
 
diff --git a/tests/case/unit/ai/selected-context-workspace-path.test.ts b/tests/case/unit/ai/selected-context-workspace-path.test.ts
index d81becb8..d119e7f9 100644
--- a/tests/case/unit/ai/selected-context-workspace-path.test.ts
+++ b/tests/case/unit/ai/selected-context-workspace-path.test.ts
@@ -5,7 +5,7 @@ import {
 } from '../../../../src/main/services/ai/prompts/referenceScope'
 
 describe('ai unit selected context workspace path', () => {
-  it('renders workspace rootPath and boundary without legacy cwd guidance', () => {
+  it('renders workspace rootPath without a workspace-only path restriction', () => {
     const text = renderReferenceScopeText(
       buildReferenceScope({
         workspace: {
@@ -19,9 +19,7 @@ describe('ai unit selected context workspace path', () => {
 
     expect(text).toContain('工作区：')
     expect(text).toContain('- 根目录：/tmp/real-workspace-root')
-    expect(text).toContain(
-      '除系统明确提供的用户级 runtime 路径外，所有任务文件和新生成的产物都必须位于这个工作区内。'
-    )
+    expect(text).not.toContain('所有任务文件和新生成的产物都必须位于这个工作区内')
     expect(text).not.toContain('display-name-only')
     expect(text).not.toContain('cwd')
     expect(text).not.toContain('显式指定 cwd')
diff --git a/tests/case/unit/workbench/attachment-service.test.ts b/tests/case/unit/workbench/attachment-service.test.ts
index 2550543c..4c3aae6b 100644
--- a/tests/case/unit/workbench/attachment-service.test.ts
+++ b/tests/case/unit/workbench/attachment-service.test.ts
@@ -72,25 +72,29 @@ describe('attachment service runtime directories', () => {
     await expect(fs.stat(path.join(workspaceRootPath, '.ncurator', 'scripts'))).rejects.toThrow()
   })
 
-  it('imports attachments into the runtime bucket and keeps names unique', async () => {
+  it('creates source attachments without copying them into the runtime bucket', async () => {
     const sourcePath = path.join(sourceRootPath, 'reference.json')
     await fs.writeFile(sourcePath, '{"ready":true}')
 
-    const first = await service.importAttachmentFromPath({
-      workspaceRootPath,
-      assetBucketId: 'bucket-2',
-      sourcePath
-    })
-    const second = await service.importAttachmentFromPath({
-      workspaceRootPath,
-      assetBucketId: 'bucket-2',
-      sourcePath
-    })
+    const attachment = await service.createSourceAttachmentFromPath({ sourcePath })
 
-    const bucketPath = path.join(workspaceRootPath, '.ncurator', 'runtime', 'assets', 'bucket-2')
-    expect(first.path).toBe(path.join(bucketPath, 'reference.json'))
-    expect(second.path).toBe(path.join(bucketPath, 'reference-1.json'))
-    await expect(fs.readFile(second.path, 'utf8')).resolves.toBe('{"ready":true}')
+    expect(attachment.path).toBe(sourcePath)
+    expect(attachment.name).toBe('reference.json')
+    await expect(
+      fs.stat(path.join(workspaceRootPath, '.ncurator', 'runtime', 'assets'))
+    ).rejects.toThrow()
+  })
+
+  it('rejects source attachment directories and unsupported files', async () => {
+    const unsupportedPath = path.join(sourceRootPath, 'archive.zip')
+    await fs.writeFile(unsupportedPath, 'not supported')
+
+    await expect(
+      service.createSourceAttachmentFromPath({ sourcePath: sourceRootPath })
+    ).rejects.toThrow('附件必须是文件')
+    await expect(
+      service.createSourceAttachmentFromPath({ sourcePath: unsupportedPath })
+    ).rejects.toThrow('暂不支持该文件格式')
   })
 
   it('accepts PDF attachments and assigns application/pdf', async () => {
diff --git a/tests/case/workbench/conversation/composer/composer-attachments-context.e2e.test.ts b/tests/case/workbench/conversation/composer/composer-attachments-context.e2e.test.ts
index 1ebf48ab..d9d92932 100644
--- a/tests/case/workbench/conversation/composer/composer-attachments-context.e2e.test.ts
+++ b/tests/case/workbench/conversation/composer/composer-attachments-context.e2e.test.ts
@@ -1,4 +1,4 @@
-import { mkdtemp, readFile, readdir, realpath, rm, writeFile } from 'node:fs/promises'
+import { mkdtemp, readFile, realpath, rm, writeFile } from 'node:fs/promises'
 import os from 'node:os'
 import path from 'node:path'
 import ExcelJS from 'exceljs'
@@ -241,7 +241,6 @@ describe('workbench conversation e2e', () => {
             },
             { targetTestId: workbenchSelectors.attachmentDropTarget, fileData: droppedFileData }
           )
-          await waitForAttachmentCardByName(page, 'dropped-context.md')
           await attachmentDropOverlay.waitFor({ state: 'hidden' })
           const attachmentDropOverlayHidden = (await attachmentDropOverlay.count()) === 0
           const sessionCountAfterPaste = await countWorkspaceSessions(
@@ -339,15 +338,6 @@ describe('workbench conversation e2e', () => {
                   .textContent()) || ''
             )
           )
-          const assetsRoot = path.join(
-            workspaceBinding.workspaceRootPath,
-            '.ncurator',
-            'runtime',
-            'assets'
-          )
-          const assetEntries = await readdir(assetsRoot, { recursive: true })
-          const importedAttachmentNames = assetEntries.map((entry) => path.basename(String(entry)))
-
           await selectWorkbenchAttachmentThroughNativeDialog(page, attachments.largePath)
           await waitForAttachmentCardByName(page, 'qa-large.json')
           const largeFileMessage = await waitForAntMessageText(
@@ -418,8 +408,6 @@ describe('workbench conversation e2e', () => {
             legacyDocCardText,
             pptxCardText,
             spreadsheetCardTexts,
-            importedAttachmentNames,
-            assetsRoot,
             submittedAttachmentNames: submittedAttachments.map((attachment) => attachment.name),
             submittedAttachmentPaths: submittedAttachments.map((attachment) => attachment.path),
             largeFileMessage,
@@ -455,7 +443,6 @@ describe('workbench conversation e2e', () => {
                 result.spreadsheetCardTexts[index]?.includes(label)
               ) &&
               [
-                'qa-image.png',
                 'workbench-preview.md',
                 'legacy-reference.doc',
                 'slides-reference.pptx',
@@ -463,32 +450,24 @@ describe('workbench conversation e2e', () => {
                 'macro-reference.xlsm',
                 'template-reference.xltx',
                 'macro-template-reference.xltm',
-                'dropped-context.md'
-              ].every((name) => result.importedAttachmentNames.includes(name)) &&
-              result.assetsRoot.includes(path.join('.ncurator', 'runtime', 'assets')) &&
-              [
-                'workbench-preview.md',
-                'legacy-reference.doc',
-                'slides-reference.pptx',
-                'sheet-reference.xlsx',
-                'macro-reference.xlsm',
-                'template-reference.xltx',
-                'macro-template-reference.xltm',
-                'qa-large.json',
-                'dropped-context.md'
+                'qa-large.json'
               ].every((name) => result.submittedAttachmentNames.includes(name)) &&
-              result.submittedAttachmentPaths.length === 9 &&
-              result.submittedAttachmentPaths.every((attachmentPath) =>
-                attachmentPath.startsWith(`${result.assetsRoot}${path.sep}`)
+              result.submittedAttachmentPaths.length === 8 &&
+              result.submittedAttachmentPaths.every(
+                (attachmentPath) =>
+                  attachmentPath.includes(`${path.sep}ncurator-composer-attachments-`) &&
+                  !attachmentPath.includes(
+                    `${path.sep}.ncurator${path.sep}runtime${path.sep}assets${path.sep}`
+                  )
               ) &&
               result.largeFileMessage.includes('文件过大，建议放到工作空间索引里使用') &&
               result.inputText.includes('plain paste ok') &&
               result.openPathCallCount >= 1,
-              result.attachmentSaveFileCallCount >= 1,
+              result.attachmentSaveFileCallCount === 0,
             {
               name: 'workbench-composer-attachments-prd-flow',
               message:
-                '附件输入应满足 PRD：文件拖到中间聊天区会显示覆盖层并导入附件；真实选择附件会走系统选择和附件导入，doc/pptx/Excel 可以添加并显示正确类型，添加附件不创建新会话，图片可预览且控件不压图，文件可默认打开，超过 10MB 只提示不拦截，普通文本粘贴仍正常。',
+                '附件输入应满足 PRD：文件拖到中间聊天区会显示并关闭覆盖层；真实选择附件保留源文件路径，doc/pptx/Excel 可以添加并显示正确类型，添加附件不创建新会话，图片可预览且控件不压图，文件可默认打开，超过 10MB 只提示不拦截，普通文本粘贴仍正常。',
               data: result
             }
           )