From b50a1b6fe9cb580c4fc245f1589411cea703cfca Mon Sep 17 00:00:00 2001
From: jerry609 <1772030600@qq.com>
Date: Thu, 12 Mar 2026 10:50:00 +0800
Subject: [PATCH 1/2] feat(web): add Obsidian handoff to Research workspace

---
 .../components/research/ResearchPageNew.tsx   |  59 +++++++-
 web/src/components/research/SavedTab.tsx      | 143 ++++++++++++++++--
 web/src/components/research/SearchBox.tsx     |  20 ++-
 web/src/lib/obsidian.test.ts                  |  36 +++++
 web/src/lib/obsidian.ts                       |  44 ++++++
 5 files changed, 284 insertions(+), 18 deletions(-)
 create mode 100644 web/src/lib/obsidian.test.ts
 create mode 100644 web/src/lib/obsidian.ts

diff --git a/web/src/components/research/ResearchPageNew.tsx b/web/src/components/research/ResearchPageNew.tsx
index 99479db8..281d0a69 100644
--- a/web/src/components/research/ResearchPageNew.tsx
+++ b/web/src/components/research/ResearchPageNew.tsx
@@ -26,15 +26,18 @@ import {
 import {
   Sheet,
   SheetContent,
+  SheetDescription,
   SheetHeader,
   SheetTitle,
 } from "@/components/ui/sheet"
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs"
 import { Button } from "@/components/ui/button"
 
 import { SearchBox } from "./SearchBox"
 import { TrackPills } from "./TrackPills"
 import { SearchResults } from "./SearchResults"
 import { MemoryTab } from "./MemoryTab"
+import { SavedTab } from "./SavedTab"
 import { CreateTrackModal } from "./CreateTrackModal"
 import { EditTrackModal } from "./EditTrackModal"
 import { ManageTracksModal } from "./ManageTracksModal"
@@ -83,6 +86,7 @@ export default function ResearchPageNew() {
 
   // Memory drawer state
   const [memoryOpen, setMemoryOpen] = useState(false)
+  const [workspaceTab, setWorkspaceTab] = useState<"saved" | "memory">("saved")
 
   // Anchor mode state (used for search filtering)
   const [anchorPersonalized, setAnchorPersonalized] = useState(true)
@@ -549,7 +553,14 @@ export default function ResearchPageNew() {
             disabled={loading}
             anchorMode={anchorPersonalized ? "personalized" : "global"}
             onAnchorModeChange={(mode) => setAnchorPersonalized(mode === "personalized")}
-            onOpenMemory={() => setMemoryOpen(true)}
+            onOpenLibrary={() => {
+              setWorkspaceTab("saved")
+              setMemoryOpen(true)
+            }}
+            onOpenMemory={() => {
+              setWorkspaceTab("memory")
+              setMemoryOpen(true)
+            }}
             yearFrom={yearFrom}
             yearTo={yearTo}
             onYearFromChange={setYearFrom}
@@ -630,12 +641,46 @@ export default function ResearchPageNew() {
 
         {/* Memory Sheet Drawer */}
         <Sheet open={memoryOpen} onOpenChange={setMemoryOpen}>
-          <SheetContent className="w-full sm:max-w-lg overflow-y-auto">
-            <SheetHeader>
-              <SheetTitle>Track Memory</SheetTitle>
-            </SheetHeader>
-            <div className="mt-4">
-              <MemoryTab userId={userId} trackId={activeTrackId} />
+          <SheetContent className="w-full border-l border-border/70 p-0 sm:max-w-2xl">
+            <div className="flex h-full flex-col bg-gradient-to-b from-slate-50 via-white to-white">
+              <SheetHeader className="border-b border-border/70 bg-white/90 px-5 py-4 backdrop-blur">
+                <div className="flex flex-wrap items-center gap-2">
+                  <SheetTitle>Workspace Library</SheetTitle>
+                  <Badge variant="secondary">
+                    {activeTrack?.name ? `Track: ${activeTrack.name}` : "Global scope"}
+                  </Badge>
+                </div>
+                <SheetDescription>
+                  Review saved papers, trigger export handoffs, and inspect track memory without leaving the
+                  research workspace.
+                </SheetDescription>
+              </SheetHeader>
+              <div className="flex min-h-0 flex-1 flex-col px-5 pb-5 pt-4">
+                <Tabs
+                  value={workspaceTab}
+                  onValueChange={(value) => setWorkspaceTab(value as "saved" | "memory")}
+                  className="flex min-h-0 flex-1 flex-col"
+                >
+                  <TabsList className="grid h-auto w-full grid-cols-2 rounded-2xl bg-slate-100 p-1">
+                    <TabsTrigger value="saved" className="rounded-xl">
+                      Saved
+                    </TabsTrigger>
+                    <TabsTrigger value="memory" className="rounded-xl">
+                      Memory
+                    </TabsTrigger>
+                  </TabsList>
+                  <TabsContent value="saved" className="mt-4 min-h-0 flex-1 overflow-y-auto pr-1">
+                    <SavedTab
+                      userId={userId}
+                      trackId={activeTrackId}
+                      trackName={activeTrack?.name ?? null}
+                    />
+                  </TabsContent>
+                  <TabsContent value="memory" className="mt-4 min-h-0 flex-1 overflow-y-auto pr-1">
+                    <MemoryTab userId={userId} trackId={activeTrackId} />
+                  </TabsContent>
+                </Tabs>
+              </div>
             </div>
           </SheetContent>
         </Sheet>
diff --git a/web/src/components/research/SavedTab.tsx b/web/src/components/research/SavedTab.tsx
index 3941390f..6372c129 100644
--- a/web/src/components/research/SavedTab.tsx
+++ b/web/src/components/research/SavedTab.tsx
@@ -1,11 +1,12 @@
 "use client"
 
 import { useEffect, useMemo, useState } from "react"
-import { Copy, Download, FileText, Loader2, RefreshCw } from "lucide-react"
+import { Copy, Download, ExternalLink, FileText, FolderSync, Loader2, RefreshCw } from "lucide-react"
 
 import { Button } from "@/components/ui/button"
 import { getErrorMessage } from "@/lib/fetch"
 import { Card, CardContent } from "@/components/ui/card"
+import { Badge } from "@/components/ui/badge"
 import {
   Dialog,
   DialogContent,
@@ -21,6 +22,7 @@ import {
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu"
 import { Input } from "@/components/ui/input"
+import { buildObsidianExportCommand, describeObsidianScope } from "@/lib/obsidian"
 
 import { PaperCard, type Paper } from "./PaperCard"
 
@@ -47,6 +49,7 @@ type SavedResponse = {
 interface SavedTabProps {
   userId: string
   trackId: number | null
+  trackName?: string | null
 }
 
 function toPaper(item: SavedItem): Paper {
@@ -64,7 +67,7 @@ function toPaper(item: SavedItem): Paper {
   }
 }
 
-export function SavedTab({ userId, trackId }: SavedTabProps) {
+export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
   const [items, setItems] = useState<SavedItem[]>([])
   const [loading, setLoading] = useState(false)
   const [error, setError] = useState<string | null>(null)
@@ -73,8 +76,26 @@ export function SavedTab({ userId, trackId }: SavedTabProps) {
   const [rwLoading, setRwLoading] = useState(false)
   const [rwMarkdown, setRwMarkdown] = useState<string | null>(null)
   const [rwCopied, setRwCopied] = useState(false)
+  const [obsidianOpen, setObsidianOpen] = useState(false)
+  const [obsidianVaultPath, setObsidianVaultPath] = useState("~/Obsidian/MyVault")
+  const [obsidianRootDir, setObsidianRootDir] = useState("PaperBot")
+  const [obsidianCopied, setObsidianCopied] = useState(false)
 
   const papers = useMemo(() => items.map(toPaper), [items])
+  const obsidianCommand = useMemo(
+    () =>
+      buildObsidianExportCommand({
+        vaultPath: obsidianVaultPath,
+        rootDir: obsidianRootDir,
+        userId,
+        trackId,
+      }),
+    [obsidianRootDir, obsidianVaultPath, trackId, userId]
+  )
+  const obsidianScope = useMemo(
+    () => describeObsidianScope(trackId, trackName),
+    [trackId, trackName]
+  )
 
   const handleExport = async (format: "bibtex" | "ris" | "markdown" | "csl_json") => {
     const qs = new URLSearchParams({ format, user_id: userId })
@@ -127,6 +148,12 @@ export function SavedTab({ userId, trackId }: SavedTabProps) {
     setTimeout(() => setRwCopied(false), 2000)
   }
 
+  const handleCopyObsidianCommand = async () => {
+    await navigator.clipboard.writeText(obsidianCommand)
+    setObsidianCopied(true)
+    setTimeout(() => setObsidianCopied(false), 2000)
+  }
+
   const load = async () => {
     setLoading(true)
     setError(null)
@@ -159,15 +186,38 @@ export function SavedTab({ userId, trackId }: SavedTabProps) {
   }, [userId, trackId])
 
   return (
-    <div className="space-y-3">
-      <div className="flex items-center justify-between">
-        <p className="text-sm text-muted-foreground">Saved papers scoped to current track.</p>
-        <div className="flex items-center gap-2">
+    <div className="space-y-4">
+      <div className="rounded-2xl border border-border/70 bg-background/90 p-4 shadow-sm">
+        <div className="flex flex-col gap-3 lg:flex-row lg:items-start lg:justify-between">
+          <div className="space-y-2">
+            <div className="flex flex-wrap items-center gap-2">
+              <Badge variant="secondary">{obsidianScope}</Badge>
+              <Badge variant="outline">{papers.length} saved</Badge>
+            </div>
+            <p className="text-sm text-muted-foreground">
+              {trackId
+                ? "Saved papers scoped to the current track."
+                : "Saved papers across your library."}
+            </p>
+          </div>
+          <div className="flex flex-wrap items-center gap-2">
+            <Button
+              variant="outline"
+              size="sm"
+              disabled={loading || !papers.length}
+              onClick={() => setObsidianOpen(true)}
+            >
+              <FolderSync className="h-3.5 w-3.5" /> Obsidian
+            </Button>
           <Button
             variant="outline"
             size="sm"
             disabled={loading || !papers.length}
-            onClick={() => { setRwOpen(true); setRwMarkdown(null); setRwTopic(""); }}
+            onClick={() => {
+              setRwOpen(true)
+              setRwMarkdown(null)
+              setRwTopic("")
+            }}
           >
             <FileText className="h-3.5 w-3.5" /> Related Work
           </Button>
@@ -190,6 +240,7 @@ export function SavedTab({ userId, trackId }: SavedTabProps) {
           </Button>
         </div>
       </div>
+      </div>
 
       {error && (
         <Card className="border-red-200 bg-red-50">
@@ -200,7 +251,9 @@ export function SavedTab({ userId, trackId }: SavedTabProps) {
       {loading && !papers.length ? (
         <div className="py-8 text-sm text-muted-foreground">Loading saved papers...</div>
       ) : !papers.length ? (
-        <div className="py-8 text-sm text-muted-foreground">No saved papers in this track.</div>
+        <div className="rounded-2xl border border-dashed bg-muted/20 py-10 text-center text-sm text-muted-foreground">
+          {trackId ? "No saved papers in this track yet." : "No saved papers in your library yet."}
+        </div>
       ) : (
         <div className="space-y-3">
           {papers.map((paper, idx) => (
@@ -247,6 +300,78 @@ export function SavedTab({ userId, trackId }: SavedTabProps) {
           )}
         </DialogContent>
       </Dialog>
+
+      <Dialog open={obsidianOpen} onOpenChange={setObsidianOpen}>
+        <DialogContent className="max-h-[85vh] max-w-2xl overflow-hidden border-border/70 bg-white/95 p-0 shadow-2xl backdrop-blur">
+          <div className="flex h-full max-h-[85vh] flex-col">
+            <DialogHeader className="border-b border-border/70 px-6 pb-4 pt-6 pr-14">
+              <DialogTitle>Export to Obsidian</DialogTitle>
+              <DialogDescription>
+                This dashboard does not write vault files directly. Copy the local CLI command below and run
+                it on the machine that owns your Obsidian vault.
+              </DialogDescription>
+            </DialogHeader>
+
+            <div className="flex-1 space-y-4 overflow-y-auto px-6 py-5">
+              <Card className="border-border/70 bg-slate-50">
+                <CardContent className="space-y-3 py-4">
+                  <div className="flex flex-wrap items-center gap-2">
+                    <Badge variant="secondary">{obsidianScope}</Badge>
+                    <Badge variant="outline">{papers.length} saved paper{papers.length === 1 ? "" : "s"}</Badge>
+                  </div>
+                  <p className="text-sm text-muted-foreground">
+                    Markdown fallback stays available from the normal export menu if you only need a flat bundle.
+                  </p>
+                </CardContent>
+              </Card>
+
+              <div className="grid gap-3 sm:grid-cols-2">
+                <label className="space-y-2 text-sm">
+                  <span className="font-medium">Vault path</span>
+                  <Input
+                    aria-label="Vault path"
+                    value={obsidianVaultPath}
+                    onChange={(e) => setObsidianVaultPath(e.target.value)}
+                    placeholder="~/Obsidian/MyVault"
+                  />
+                </label>
+                <label className="space-y-2 text-sm">
+                  <span className="font-medium">Root directory</span>
+                  <Input
+                    aria-label="Root directory"
+                    value={obsidianRootDir}
+                    onChange={(e) => setObsidianRootDir(e.target.value)}
+                    placeholder="PaperBot"
+                  />
+                </label>
+              </div>
+
+              <div className="rounded-2xl border bg-slate-950 p-4 text-sm text-slate-50 shadow-inner">
+                <pre className="whitespace-pre-wrap break-all font-mono">{obsidianCommand}</pre>
+              </div>
+
+              <div className="flex items-start gap-2 rounded-xl border border-amber-200 bg-amber-50 px-3 py-2 text-xs text-amber-900">
+                <ExternalLink className="mt-0.5 h-3.5 w-3.5 shrink-0" />
+                <span>
+                  Direct dashboard-triggered vault writes stay out of scope until we have a trusted local bridge or
+                  allowlisted directory model. See issue #346.
+                </span>
+              </div>
+            </div>
+
+            <DialogFooter className="border-t border-border/70 px-6 py-4 sm:justify-between">
+              <Button variant="outline" size="sm" onClick={() => handleExport("markdown")}>
+                <Download className="h-3.5 w-3.5" />
+                Download Markdown Fallback
+              </Button>
+              <Button size="sm" onClick={handleCopyObsidianCommand}>
+                <Copy className="h-3.5 w-3.5" />
+                {obsidianCopied ? "Copied" : "Copy CLI Command"}
+              </Button>
+            </DialogFooter>
+          </div>
+        </DialogContent>
+      </Dialog>
     </div>
   )
-}
\ No newline at end of file
+}
diff --git a/web/src/components/research/SearchBox.tsx b/web/src/components/research/SearchBox.tsx
index 0b973072..8d942ed1 100644
--- a/web/src/components/research/SearchBox.tsx
+++ b/web/src/components/research/SearchBox.tsx
@@ -1,7 +1,7 @@
 "use client"
 
 import { KeyboardEvent, useRef, useState } from "react"
-import { Brain, CalendarRange, Check, Loader2, Search } from "lucide-react"
+import { BookCopy, Brain, CalendarRange, Check, Loader2, Search } from "lucide-react"
 
 import { cn } from "@/lib/utils"
 import { showTrackMemoryButton } from "@/config/features"
@@ -116,6 +116,7 @@ interface SearchBoxProps {
   anchorMode?: "personalized" | "global"
   onAnchorModeChange?: (mode: "personalized" | "global") => void
   onOpenMemory?: () => void
+  onOpenLibrary?: () => void
   yearFrom?: string
   yearTo?: string
   onYearFromChange?: (value: string) => void
@@ -138,6 +139,7 @@ export function SearchBox({
   anchorMode = "personalized",
   onAnchorModeChange,
   onOpenMemory,
+  onOpenLibrary,
   yearFrom = "",
   yearTo = "",
   onYearFromChange,
@@ -248,14 +250,28 @@ export function SearchBox({
 
           {/* Right side - Memory, Track selector and Search button */}
           <div className="flex items-center gap-1.5 sm:gap-2">
+            {onOpenLibrary && (
+              <Button
+                variant="ghost"
+                size="icon"
+                className="h-8 w-8 rounded-full bg-muted/40 hover:bg-muted"
+                onClick={onOpenLibrary}
+                disabled={disabled || isSearching}
+                title="Saved Library"
+                aria-label="Open saved library"
+              >
+                <BookCopy className="h-4 w-4" />
+              </Button>
+            )}
             {onOpenMemory && showTrackMemoryButton() && (
               <Button
                 variant="ghost"
                 size="icon"
-                className="h-8 w-8"
+                className="h-8 w-8 rounded-full bg-muted/40 hover:bg-muted"
                 onClick={onOpenMemory}
                 disabled={disabled || isSearching}
                 title="Track Memory"
+                aria-label="Open track memory"
               >
                 <Brain className="h-4 w-4" />
               </Button>
diff --git a/web/src/lib/obsidian.test.ts b/web/src/lib/obsidian.test.ts
new file mode 100644
index 00000000..c58abd7e
--- /dev/null
+++ b/web/src/lib/obsidian.test.ts
@@ -0,0 +1,36 @@
+import { describe, expect, it } from "vitest"
+
+import { buildObsidianExportCommand, describeObsidianScope } from "./obsidian"
+
+describe("buildObsidianExportCommand", () => {
+  it("builds a track-scoped command with quoted values", () => {
+    expect(
+      buildObsidianExportCommand({
+        vaultPath: "~/vaults/research",
+        rootDir: "Research Notes",
+        userId: "default",
+        trackId: 7,
+      })
+    ).toBe(
+      "paperbot export obsidian --user-id 'default' --track-id 7 --root-dir 'Research Notes' --vault '~/vaults/research'"
+    )
+  })
+
+  it("falls back to a placeholder path when the vault is empty", () => {
+    expect(
+      buildObsidianExportCommand({
+        vaultPath: "   ",
+      })
+    ).toBe("paperbot export obsidian --user-id 'default' --vault '/path/to/your/vault'")
+  })
+})
+
+describe("describeObsidianScope", () => {
+  it("describes track scope when a track is selected", () => {
+    expect(describeObsidianScope(12, "Agent Memory")).toBe("Track: Agent Memory")
+  })
+
+  it("falls back to global scope text without a track", () => {
+    expect(describeObsidianScope(null, null)).toBe("Global saved library")
+  })
+})
diff --git a/web/src/lib/obsidian.ts b/web/src/lib/obsidian.ts
new file mode 100644
index 00000000..4e83b3b8
--- /dev/null
+++ b/web/src/lib/obsidian.ts
@@ -0,0 +1,44 @@
+export interface ObsidianCommandOptions {
+  vaultPath: string
+  rootDir?: string
+  userId?: string
+  trackId?: number | null
+}
+
+function shellQuote(value: string): string {
+  return `'${String(value).replace(/'/g, `'\"'\"'`)}'`
+}
+
+export function buildObsidianExportCommand({
+  vaultPath,
+  rootDir = "PaperBot",
+  userId = "default",
+  trackId = null,
+}: ObsidianCommandOptions): string {
+  const trimmedVault = vaultPath.trim()
+  const trimmedRootDir = rootDir.trim() || "PaperBot"
+  const args = ["paperbot", "export", "obsidian", "--user-id", shellQuote(userId)]
+
+  if (trackId) {
+    args.push("--track-id", String(trackId))
+  }
+
+  if (trimmedRootDir && trimmedRootDir !== "PaperBot") {
+    args.push("--root-dir", shellQuote(trimmedRootDir))
+  }
+
+  if (trimmedVault) {
+    args.push("--vault", shellQuote(trimmedVault))
+  } else {
+    args.push("--vault", shellQuote("/path/to/your/vault"))
+  }
+
+  return args.join(" ")
+}
+
+export function describeObsidianScope(trackId: number | null, trackName?: string | null): string {
+  if (trackId) {
+    return trackName?.trim() ? `Track: ${trackName.trim()}` : `Track #${trackId}`
+  }
+  return "Global saved library"
+}

From cdcefa0662e0fbea1ad3825038158b29707e9ee8 Mon Sep 17 00:00:00 2001
From: jerry609 <1772030600@qq.com>
Date: Thu, 12 Mar 2026 13:11:53 +0800
Subject: [PATCH 2/2] fix(web): address obsidian workspace review feedback

---
 .../components/research/ResearchPageNew.tsx   |  6 +-
 web/src/components/research/SavedTab.tsx      | 85 +++++++++++--------
 web/src/lib/obsidian.test.ts                  | 13 +++
 web/src/lib/obsidian.ts                       |  4 +-
 4 files changed, 68 insertions(+), 40 deletions(-)

diff --git a/web/src/components/research/ResearchPageNew.tsx b/web/src/components/research/ResearchPageNew.tsx
index 281d0a69..07794d16 100644
--- a/web/src/components/research/ResearchPageNew.tsx
+++ b/web/src/components/research/ResearchPageNew.tsx
@@ -658,7 +658,11 @@ export default function ResearchPageNew() {
               <div className="flex min-h-0 flex-1 flex-col px-5 pb-5 pt-4">
                 <Tabs
                   value={workspaceTab}
-                  onValueChange={(value) => setWorkspaceTab(value as "saved" | "memory")}
+                  onValueChange={(value) => {
+                    if (value === "saved" || value === "memory") {
+                      setWorkspaceTab(value)
+                    }
+                  }}
                   className="flex min-h-0 flex-1 flex-col"
                 >
                   <TabsList className="grid h-auto w-full grid-cols-2 rounded-2xl bg-slate-100 p-1">
diff --git a/web/src/components/research/SavedTab.tsx b/web/src/components/research/SavedTab.tsx
index 6372c129..0624fec9 100644
--- a/web/src/components/research/SavedTab.tsx
+++ b/web/src/components/research/SavedTab.tsx
@@ -80,6 +80,7 @@ export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
   const [obsidianVaultPath, setObsidianVaultPath] = useState("~/Obsidian/MyVault")
   const [obsidianRootDir, setObsidianRootDir] = useState("PaperBot")
   const [obsidianCopied, setObsidianCopied] = useState(false)
+  const [obsidianCopyError, setObsidianCopyError] = useState<string | null>(null)
 
   const papers = useMemo(() => items.map(toPaper), [items])
   const obsidianCommand = useMemo(
@@ -99,7 +100,7 @@ export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
 
   const handleExport = async (format: "bibtex" | "ris" | "markdown" | "csl_json") => {
     const qs = new URLSearchParams({ format, user_id: userId })
-    if (trackId) qs.set("track_id", String(trackId))
+    if (trackId != null) qs.set("track_id", String(trackId))
     try {
       const res = await fetch(`/api/papers/export?${qs.toString()}`)
       if (!res.ok) throw new Error(`${res.status}`)
@@ -149,9 +150,16 @@ export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
   }
 
   const handleCopyObsidianCommand = async () => {
-    await navigator.clipboard.writeText(obsidianCommand)
-    setObsidianCopied(true)
-    setTimeout(() => setObsidianCopied(false), 2000)
+    try {
+      await navigator.clipboard.writeText(obsidianCommand)
+      setObsidianCopyError(null)
+      setObsidianCopied(true)
+      setTimeout(() => setObsidianCopied(false), 2000)
+    } catch {
+      setObsidianCopied(false)
+      setObsidianCopyError("Clipboard access failed. Copy the command manually.")
+      setTimeout(() => setObsidianCopyError(null), 3000)
+    }
   }
 
   const load = async () => {
@@ -163,7 +171,7 @@ export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
         sort_by: "saved_at",
         limit: "100",
       })
-      if (trackId) {
+      if (trackId != null) {
         qs.set("track_id", String(trackId))
       }
       const res = await fetch(`/api/research/papers/saved?${qs.toString()}`)
@@ -195,7 +203,7 @@ export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
               <Badge variant="outline">{papers.length} saved</Badge>
             </div>
             <p className="text-sm text-muted-foreground">
-              {trackId
+              {trackId != null
                 ? "Saved papers scoped to the current track."
                 : "Saved papers across your library."}
             </p>
@@ -209,38 +217,38 @@ export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
             >
               <FolderSync className="h-3.5 w-3.5" /> Obsidian
             </Button>
-          <Button
-            variant="outline"
-            size="sm"
-            disabled={loading || !papers.length}
-            onClick={() => {
-              setRwOpen(true)
-              setRwMarkdown(null)
-              setRwTopic("")
-            }}
-          >
-            <FileText className="h-3.5 w-3.5" /> Related Work
-          </Button>
-          <DropdownMenu>
-            <DropdownMenuTrigger asChild>
-              <Button variant="outline" size="sm" disabled={loading || !papers.length}>
-                <Download className="h-3.5 w-3.5" /> Export
-              </Button>
-            </DropdownMenuTrigger>
-            <DropdownMenuContent align="end">
-              <DropdownMenuItem onClick={() => handleExport("bibtex")}>BibTeX</DropdownMenuItem>
-              <DropdownMenuItem onClick={() => handleExport("ris")}>RIS</DropdownMenuItem>
-              <DropdownMenuItem onClick={() => handleExport("markdown")}>Markdown</DropdownMenuItem>
-              <DropdownMenuItem onClick={() => handleExport("csl_json")}>Zotero (CSL-JSON)</DropdownMenuItem>
-            </DropdownMenuContent>
-          </DropdownMenu>
-          <Button variant="outline" size="sm" onClick={() => load().catch(() => {})} disabled={loading}>
-            {loading ? <Loader2 className="h-3.5 w-3.5 animate-spin" /> : <RefreshCw className="h-3.5 w-3.5" />}
-            Refresh
-          </Button>
+            <Button
+              variant="outline"
+              size="sm"
+              disabled={loading || !papers.length}
+              onClick={() => {
+                setRwOpen(true)
+                setRwMarkdown(null)
+                setRwTopic("")
+              }}
+            >
+              <FileText className="h-3.5 w-3.5" /> Related Work
+            </Button>
+            <DropdownMenu>
+              <DropdownMenuTrigger asChild>
+                <Button variant="outline" size="sm" disabled={loading || !papers.length}>
+                  <Download className="h-3.5 w-3.5" /> Export
+                </Button>
+              </DropdownMenuTrigger>
+              <DropdownMenuContent align="end">
+                <DropdownMenuItem onClick={() => handleExport("bibtex")}>BibTeX</DropdownMenuItem>
+                <DropdownMenuItem onClick={() => handleExport("ris")}>RIS</DropdownMenuItem>
+                <DropdownMenuItem onClick={() => handleExport("markdown")}>Markdown</DropdownMenuItem>
+                <DropdownMenuItem onClick={() => handleExport("csl_json")}>Zotero (CSL-JSON)</DropdownMenuItem>
+              </DropdownMenuContent>
+            </DropdownMenu>
+            <Button variant="outline" size="sm" onClick={() => load().catch(() => {})} disabled={loading}>
+              {loading ? <Loader2 className="h-3.5 w-3.5 animate-spin" /> : <RefreshCw className="h-3.5 w-3.5" />}
+              Refresh
+            </Button>
+          </div>
         </div>
       </div>
-      </div>
 
       {error && (
         <Card className="border-red-200 bg-red-50">
@@ -252,7 +260,7 @@ export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
         <div className="py-8 text-sm text-muted-foreground">Loading saved papers...</div>
       ) : !papers.length ? (
         <div className="rounded-2xl border border-dashed bg-muted/20 py-10 text-center text-sm text-muted-foreground">
-          {trackId ? "No saved papers in this track yet." : "No saved papers in your library yet."}
+          {trackId != null ? "No saved papers in this track yet." : "No saved papers in your library yet."}
         </div>
       ) : (
         <div className="space-y-3">
@@ -349,6 +357,9 @@ export function SavedTab({ userId, trackId, trackName = null }: SavedTabProps) {
               <div className="rounded-2xl border bg-slate-950 p-4 text-sm text-slate-50 shadow-inner">
                 <pre className="whitespace-pre-wrap break-all font-mono">{obsidianCommand}</pre>
               </div>
+              {obsidianCopyError ? (
+                <p className="text-xs text-red-600">{obsidianCopyError}</p>
+              ) : null}
 
               <div className="flex items-start gap-2 rounded-xl border border-amber-200 bg-amber-50 px-3 py-2 text-xs text-amber-900">
                 <ExternalLink className="mt-0.5 h-3.5 w-3.5 shrink-0" />
diff --git a/web/src/lib/obsidian.test.ts b/web/src/lib/obsidian.test.ts
index c58abd7e..326d3bd1 100644
--- a/web/src/lib/obsidian.test.ts
+++ b/web/src/lib/obsidian.test.ts
@@ -23,6 +23,15 @@ describe("buildObsidianExportCommand", () => {
       })
     ).toBe("paperbot export obsidian --user-id 'default' --vault '/path/to/your/vault'")
   })
+
+  it("keeps zero track ids instead of dropping them as falsy", () => {
+    expect(
+      buildObsidianExportCommand({
+        vaultPath: "~/vaults/research",
+        trackId: 0,
+      })
+    ).toBe("paperbot export obsidian --user-id 'default' --track-id 0 --vault '~/vaults/research'")
+  })
 })
 
 describe("describeObsidianScope", () => {
@@ -33,4 +42,8 @@ describe("describeObsidianScope", () => {
   it("falls back to global scope text without a track", () => {
     expect(describeObsidianScope(null, null)).toBe("Global saved library")
   })
+
+  it("renders zero track ids as track scope", () => {
+    expect(describeObsidianScope(0, null)).toBe("Track #0")
+  })
 })
diff --git a/web/src/lib/obsidian.ts b/web/src/lib/obsidian.ts
index 4e83b3b8..8a7cb648 100644
--- a/web/src/lib/obsidian.ts
+++ b/web/src/lib/obsidian.ts
@@ -19,7 +19,7 @@ export function buildObsidianExportCommand({
   const trimmedRootDir = rootDir.trim() || "PaperBot"
   const args = ["paperbot", "export", "obsidian", "--user-id", shellQuote(userId)]
 
-  if (trackId) {
+  if (trackId != null) {
     args.push("--track-id", String(trackId))
   }
 
@@ -37,7 +37,7 @@ export function buildObsidianExportCommand({
 }
 
 export function describeObsidianScope(trackId: number | null, trackName?: string | null): string {
-  if (trackId) {
+  if (trackId != null) {
     return trackName?.trim() ? `Track: ${trackName.trim()}` : `Track #${trackId}`
   }
   return "Global saved library"