diff --git a/.doc/ops/CURRENT.md b/.doc/ops/CURRENT.md
index a2f48ec0..1bdbeda3 100644
--- a/.doc/ops/CURRENT.md
+++ b/.doc/ops/CURRENT.md
@@ -14,6 +14,7 @@
 
 | owner | task | branch | worktree | mutex | status |
 |-------|------|--------|----------|-------|--------|
+| Cursor | 2026-09-21-upload-parse-ux-dedup | feature/upload-parse-ux-2026-09-21 | .worktrees/upload-parse-ux-2026-09-21 | server+web+storage | in_progress |
 | Cursor | 2026-09-21-mineru-doc-parsing | feature/mineru-doc-parsing-2026-09-21 | .worktrees/mineru-doc-parsing-2026-09-21 | storage+bizdev+kb | done |
 | Cursor | 2026-09-21-intent-confirm-stage-aware | fix/intent-confirm-stage-aware-2026-09-21 | .worktrees/intent-confirm-stage-aware-2026-09-21 | intent+web+docgov | done |
 | Cursor | 2026-09-21-taskrun-status-card | feature/taskrun-status-card-2026-09-21 | .worktrees/feature-taskrun-status-card-2026-09-21 | chat+web+taskrun | done |
diff --git a/.doc/ops/short-term/2026-09-21-upload-parse-ux-dedup.md b/.doc/ops/short-term/2026-09-21-upload-parse-ux-dedup.md
new file mode 100644
index 00000000..734982a3
--- /dev/null
+++ b/.doc/ops/short-term/2026-09-21-upload-parse-ux-dedup.md
@@ -0,0 +1,66 @@
+---
+title: "上传文档解析提示 / 去重 / CoW 收口"
+status: in_progress
+created: 2026-09-21
+updated: 2026-09-21
+owner: Cursor
+branch: feature/upload-parse-ux-2026-09-21
+worktree: .worktrees/upload-parse-ux-2026-09-21
+base_dev_sha: 10aee3feb478c550adc9959f2d3a8d17cd5b48a0
+write_scope:
+  - internal/server/
+  - internal/storage/
+  - internal/materialindex/
+  - web/src/
+  - .doc/ops/
+  - .doc/audit/
+  - .doc/test-reports/
+head_sha: <准入时冻结>
+deployment: pending
+cleanup: pending
+mutex: server+web+storage
+---
+
+# 上传文档解析提示 / 去重 / CoW 收口
+
+## 目标
+
+在已合入 dev 的 MinerU 解析管线（`dev@7f150831`）之上，补齐：解析状态提示闭环（轮询、失败原因、重试）、上传去重提示（暴露 CAS `IsDeduplicated`）、CoW 写时复制契约固化（不可变 blob 守卫测试 + 审计记录）。
+
+## 范围
+
+- `internal/server/asset_handlers.go`：上传响应加 `deduplicated`；列表批量返回 `parse_state`+`parse_error`；新增 `POST .../assets/{id}/reparse`；不支持类型 `skipped` 语义
+- `internal/materialindex/pipeline.go`：`GetParseStates` → `GetParseInfo`（含 error_message）；`ResetForReparse`
+- `web/src/`：`useParseStatePolling` hook、FilePreviewPanel 徽标轮询与重试按钮、附件去重提示、DocsSection 状态列
+- 测试：CAS CoW 契约、handler、前端单测
+
+## 非目标
+
+- 不改 MinerU 客户端与解析管线核心逻辑（已验收）
+- 不做跨项目逻辑记录合并（物理一份 + 提示方案，逻辑引用保留）
+- 不动 test/main 晋升；不改 production_ready
+
+## 步骤
+
+1. [ ] 后端：dedup/parse_error 暴露 + reparse 接口 + skipped 语义
+2. [ ] 前端：轮询 hook + 状态徽标 + 去重提示 + 重试按钮
+3. [ ] CoW 契约测试 + handler 测试 + 前端测试
+4. [ ] 文档：审计记录（CoW 现状）、验收报告
+5. [ ] 集成 dev + 部署 + 实测验收
+
+## 验收标准
+
+- [ ] 上传重复文件响应含 deduplicated=true，前端提示复用
+- [ ] parse_state 轮询 pending→running→done 自动刷新，无需手动重加载
+- [ ] failed 展示错误原因，reparse 后恢复解析
+- [ ] CAS 同 sha 重复写入不产生新物理文件的契约测试通过
+- [ ] go vet / go test -short / web npm test / npm run build 全过
+
+## 相关链接
+
+- 前序任务: [2026-09-21-mineru-doc-parsing.md](./2026-09-21-mineru-doc-parsing.md)
+- Test report: ../../test-reports/2026-09-21-upload-parse-ux-dedup-test-report.md
+
+## 证据 / 备注
+
+（命令输出、commit、文件路径）