Simplify document comment panel (PAP-10960)

Streamline the inline document annotation UI per board feedback:

- Drop the "Comments" panel header, the Open/Resolved/Stale/Orphaned
  filter chips, and the "No open comments yet" empty state. The revision
  indicator now lives top-right next to the close button, and all
  anchorable threads render in a single list.
- Remove the per-thread "Open · just now" status/timestamp row; keep the
  per-comment timestamp beside each author avatar.
- Show the current user's avatar + name directly above the composer when
  writing a new comment.
- Clamp quote snippets to two lines with a roomier line-height so the next
  line's letter tops are never clipped.
- Drop the "⌘↵ to submit" hints from the composer/reply placeholders.
- Keep the selected segment brightly highlighted in the document while a
  comment is being composed (pendingHighlightText) so the selection no
  longer disappears when the panel opens.
- Make thread creation, replies, and resolve/reopen optimistic so
  submission feels instant instead of flashing empty then repopulating.
- Clamp the floating desktop panel below the sticky top nav so the
  comments thread no longer tucks under the nav bar while scrolling.

Adds a Storybook story (Product/Document Comments) covering the empty,
populated, and composing states. Updates annotation tests for the
filter-less single-list behaviour.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

ui/src/components/DocumentAnnotationLayer.tsx

@@ -48,8 +48,17 @@ export interface AnnotationLayerProps {
    * pending anchor for the keyboard shortcut path.
    */
   captureSelectionRequestId?: number;
+  /**
+   * Text of a comment currently being composed. We keep this segment brightly
+   * highlighted in the document even after the native browser selection is lost
+   * (e.g. once focus moves into the composer textarea).
+   */
+  pendingHighlightText?: string | null;
 }
 
+/** Synthetic thread id used to render the in-progress (pending) comment highlight. */
+const PENDING_HIGHLIGHT_THREAD_ID = "__paperclip-pending-annotation__";
+
 interface HighlightRect {
   threadId: string;
   status: DocumentAnnotationThreadStatus;
@@ -60,6 +69,8 @@ interface HighlightRect {
   height: number;
   /** True for the last rect of this thread (used to anchor a glyph at the run end). */
   isTail: boolean;
+  /** True when this run should render with the brighter focused/pending treatment. */
+  focused: boolean;
 }
 
 interface ToolbarPosition {
@@ -203,6 +214,7 @@ export function DocumentAnnotationLayer({
   newCommentDisabledReason = null,
   hideResolved = true,
   captureSelectionRequestId,
+  pendingHighlightText = null,
 }: AnnotationLayerProps) {
   const [highlightRects, setHighlightRects] = useState<HighlightRect[]>([]);
   const [toolbarPosition, setToolbarPosition] = useState<ToolbarPosition | null>(null);
@@ -231,19 +243,17 @@ export function DocumentAnnotationLayer({
     const overlayRect = overlay.getBoundingClientRect();
     const next: HighlightRect[] = [];
     const nativeRanges = emptyNativeHighlightRanges();
-    for (const thread of visibleThreads) {
-      if (thread.anchorState === "orphaned") continue;
-      const isFocused = thread.id === focusedThreadId;
-      const isStale = thread.anchorState === "stale";
-      const isResolved = thread.status === "resolved";
-      const nativeKind = nativeHighlightKind({
-        focused: isFocused,
-        stale: isStale,
-        resolved: isResolved,
-      });
+    const pushRunRects = (run: {
+      threadId: string;
+      status: DocumentAnnotationThreadStatus;
+      anchorState: DocumentAnnotationAnchorState;
+      focused: boolean;
+      selectedText: string;
+      nativeKind: NativeHighlightKind;
+    }) => {
       const ranges = rangesForNormalizedSpan({
         container,
-        selectedText: thread.selectedText,
+        selectedText: run.selectedText,
       });
       const startIndex = next.length;
       for (const range of ranges) {
@@ -256,9 +266,10 @@ export function DocumentAnnotationLayer({
           if (!visibleRect) continue;
           rangeIsVisible = true;
           next.push({
-            threadId: thread.id,
-            status: thread.status,
-            anchorState: thread.anchorState,
+            threadId: run.threadId,
+            status: run.status,
+            anchorState: run.anchorState,
+            focused: run.focused,
             top: visibleRect.top - overlayRect.top,
             left: visibleRect.left - overlayRect.left,
             width: visibleRect.width,
@@ -266,15 +277,41 @@ export function DocumentAnnotationLayer({
             isTail: false,
           });
         }
-        if (rangeIsVisible) nativeRanges[nativeKind].push(range);
+        if (rangeIsVisible) nativeRanges[run.nativeKind].push(range);
       }
       if (next.length > startIndex) {
         next[next.length - 1].isTail = true;
       }
+    };
+    for (const thread of visibleThreads) {
+      if (thread.anchorState === "orphaned") continue;
+      const isFocused = thread.id === focusedThreadId;
+      const isStale = thread.anchorState === "stale";
+      const isResolved = thread.status === "resolved";
+      pushRunRects({
+        threadId: thread.id,
+        status: thread.status,
+        anchorState: thread.anchorState,
+        focused: isFocused,
+        selectedText: thread.selectedText,
+        nativeKind: nativeHighlightKind({ focused: isFocused, stale: isStale, resolved: isResolved }),
+      });
+    }
+    // Keep the in-progress (pending) comment selection brightly highlighted so the
+    // segment stays anchored in the document while the composer is open.
+    if (pendingHighlightText && pendingHighlightText.trim().length > 0) {
+      pushRunRects({
+        threadId: PENDING_HIGHLIGHT_THREAD_ID,
+        status: "open",
+        anchorState: "active",
+        focused: true,
+        selectedText: pendingHighlightText,
+        nativeKind: "focused",
+      });
     }
     setNativeHighlightRanges(nativeHighlightInstanceId, nativeRanges);
     setHighlightRects(next);
-  }, [containerRef, focusedThreadId, nativeHighlightInstanceId, visibleThreads]);
+  }, [containerRef, focusedThreadId, nativeHighlightInstanceId, pendingHighlightText, visibleThreads]);
 
   useLayoutEffect(() => {
     computeHighlightRects();
@@ -398,7 +435,7 @@ export function DocumentAnnotationLayer({
         <div className="paperclip-doc-annotation-visual-layer pointer-events-none absolute inset-0 z-0" aria-hidden="true">
           <div className="relative h-full w-full">
             {highlightRects.map((rect, index) => {
-              const isFocused = rect.threadId === focusedThreadId;
+              const isFocused = rect.focused;
               const isStale = rect.anchorState === "stale";
               const isResolved = rect.status === "resolved";
               return (
@@ -437,7 +474,8 @@ export function DocumentAnnotationLayer({
       >
         <div ref={overlayRef} className="relative h-full w-full">
           {highlightRects.map((rect, index) => {
-            const isFocused = rect.threadId === focusedThreadId;
+            if (rect.threadId === PENDING_HIGHLIGHT_THREAD_ID) return null;
+            const isFocused = rect.focused;
             return (
               <button
                 key={`${rect.threadId}-${index}`}

ui/src/components/DocumentAnnotationPanel.tsx

@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
-import { useMutation, useQueryClient } from "@tanstack/react-query";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import type {
   DocumentAnnotationComment,
   DocumentAnnotationThreadStatus,
@@ -13,7 +13,6 @@ import {
   X,
 } from "lucide-react";
 import { Button } from "@/components/ui/button";
-import { Badge } from "@/components/ui/badge";
 import {
   DropdownMenu,
   DropdownMenuContent,
@@ -25,6 +24,8 @@ import { Textarea } from "@/components/ui/textarea";
 import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
 import { cn, relativeTime } from "@/lib/utils";
 import { documentAnnotationsApi } from "@/api/document-annotations";
+import { authApi } from "@/api/auth";
+import { queryKeys } from "@/lib/queryKeys";
 import { AgentIcon } from "./AgentIconPicker";
 import { deriveInitials } from "./Identity";
 import { MarkdownBody } from "./MarkdownBody";
@@ -32,15 +33,6 @@ import type { PendingAnchor } from "./DocumentAnnotationLayer";
 import type { Agent } from "@paperclipai/shared";
 import type { CompanyUserProfile } from "@/lib/company-members";
 
-type AnnotationFilter = "open" | "resolved" | "stale" | "orphan";
-
-const FILTERS: { id: AnnotationFilter; label: string }[] = [
-  { id: "open", label: "Open" },
-  { id: "resolved", label: "Resolved" },
-  { id: "stale", label: "Stale" },
-  { id: "orphan", label: "Orphaned" },
-];
-
 export interface AnnotationPanelProps {
   open: boolean;
   onOpenChange: (open: boolean) => void;
@@ -110,32 +102,36 @@ export function DocumentAnnotationPanel(props: AnnotationPanelProps) {
 
 function AnnotationPanelBody(props: AnnotationPanelProps) {
   const queryClient = useQueryClient();
-  const [filter, setFilter] = useState<AnnotationFilter>("open");
   const [composerValue, setComposerValue] = useState("");
   const [replyDrafts, setReplyDrafts] = useState<Record<string, string>>({});
   const composerRef = useRef<HTMLTextAreaElement | null>(null);
   const bodyTestId = props.isMobile ? "document-annotation-panel" : undefined;
 
-  const filteredThreads = useMemo(() => {
-    return props.threads.filter((thread) => {
-      if (filter === "open") return thread.status === "open" && thread.anchorState !== "orphaned";
-      if (filter === "resolved") return thread.status === "resolved";
-      if (filter === "stale") return thread.anchorState === "stale";
-      if (filter === "orphan") return thread.anchorState === "orphaned";
-      return true;
-    });
-  }, [props.threads, filter]);
+  const { data: session } = useQuery({
+    queryKey: queryKeys.auth.session,
+    queryFn: () => authApi.getSession(),
+    staleTime: 5 * 60_000,
+  });
+  const currentUser = useMemo(() => {
+    const user = session?.user;
+    return {
+      id: user?.id ?? null,
+      name: user?.name?.trim() || user?.email?.trim() || "You",
+      image: user?.image ?? null,
+    };
+  }, [session]);
 
-  const counts = useMemo(() => {
-    const result = { open: 0, resolved: 0, stale: 0, orphan: 0 };
-    for (const thread of props.threads) {
-      if (thread.status === "resolved") result.resolved += 1;
-      if (thread.anchorState === "stale") result.stale += 1;
-      if (thread.anchorState === "orphaned") result.orphan += 1;
-      if (thread.status === "open" && thread.anchorState !== "orphaned") result.open += 1;
-    }
-    return result;
-  }, [props.threads]);
+  // Show every thread that can be anchored in the document (orphaned threads have
+  // lost their anchor). Filters were removed in favour of a single simple list.
+  const visibleThreads = useMemo(
+    () => props.threads.filter((thread) => thread.anchorState !== "orphaned"),
+    [props.threads],
+  );
+
+  const annotationsQueryKey = useMemo(
+    () => queryKeys.issues.documentAnnotations(props.issueId, props.documentKey, "all"),
+    [props.documentKey, props.issueId],
+  );
 
   const invalidateAll = useCallback(() => {
     queryClient.invalidateQueries({
@@ -159,27 +155,101 @@ function AnnotationPanelBody(props: AnnotationPanelProps) {
         body,
       });
     },
-    onSuccess: (thread) => {
+    // Optimistically drop the new thread into the cache so submission feels instant.
+    onMutate: async (body: string) => {
+      const anchor = props.pendingAnchor;
+      if (!anchor || !props.baseRevisionId) return undefined;
+      await queryClient.cancelQueries({ queryKey: annotationsQueryKey });
+      const previous = queryClient.getQueryData<DocumentAnnotationThreadWithComments[]>(annotationsQueryKey);
+      const optimisticThread = buildOptimisticThread({
+        body,
+        selectedText: anchor.selectedText,
+        issueId: props.issueId,
+        documentKey: props.documentKey,
+        baseRevisionId: props.baseRevisionId,
+        baseRevisionNumber: props.baseRevisionNumber,
+        author: currentUser,
+      });
+      queryClient.setQueryData<DocumentAnnotationThreadWithComments[]>(
+        annotationsQueryKey,
+        (current) => [...(current ?? []), optimisticThread],
+      );
+      // Clear the composer immediately — the optimistic thread now carries the text.
       props.onClearPendingAnchor();
       setComposerValue("");
-      props.onFocusThread(thread.id);
-      invalidateAll();
+      props.onFocusThread(optimisticThread.id);
+      return { previous, optimisticId: optimisticThread.id };
     },
+    onError: (_error, _body, context) => {
+      if (context?.previous) {
+        queryClient.setQueryData(annotationsQueryKey, context.previous);
+      }
+    },
+    onSuccess: (thread, _body, context) => {
+      // Swap the optimistic placeholder for the real thread before refetch settles.
+      queryClient.setQueryData<DocumentAnnotationThreadWithComments[]>(
+        annotationsQueryKey,
+        (current) => (current ?? []).map((entry) =>
+          entry.id === context?.optimisticId ? thread : entry,
+        ),
+      );
+      props.onFocusThread(thread.id);
+    },
+    onSettled: () => invalidateAll(),
   });
 
   const addReply = useMutation({
     mutationFn: ({ threadId, body }: { threadId: string; body: string }) =>
       documentAnnotationsApi.addComment(props.issueId, props.documentKey, threadId, { body }),
-    onSuccess: (_data, variables) => {
-      setReplyDrafts((current) => ({ ...current, [variables.threadId]: "" }));
-      invalidateAll();
+    // Optimistically append the reply so it stays on screen through the round-trip.
+    onMutate: async ({ threadId, body }) => {
+      await queryClient.cancelQueries({ queryKey: annotationsQueryKey });
+      const previous = queryClient.getQueryData<DocumentAnnotationThreadWithComments[]>(annotationsQueryKey);
+      const optimisticComment = buildOptimisticComment({
+        body,
+        threadId,
+        issueId: props.issueId,
+        author: currentUser,
+      });
+      queryClient.setQueryData<DocumentAnnotationThreadWithComments[]>(
+        annotationsQueryKey,
+        (current) => (current ?? []).map((thread) =>
+          thread.id === threadId
+            ? { ...thread, comments: [...thread.comments, optimisticComment], updatedAt: optimisticComment.createdAt }
+            : thread,
+        ),
+      );
+      setReplyDrafts((current) => ({ ...current, [threadId]: "" }));
+      return { previous };
     },
+    onError: (_error, _variables, context) => {
+      if (context?.previous) {
+        queryClient.setQueryData(annotationsQueryKey, context.previous);
+      }
+    },
+    onSettled: () => invalidateAll(),
   });
 
   const updateStatus = useMutation({
     mutationFn: ({ threadId, status }: { threadId: string; status: DocumentAnnotationThreadStatus }) =>
       documentAnnotationsApi.updateStatus(props.issueId, props.documentKey, threadId, status),
-    onSuccess: () => invalidateAll(),
+    onMutate: async ({ threadId, status }) => {
+      await queryClient.cancelQueries({ queryKey: annotationsQueryKey });
+      const previous = queryClient.getQueryData<DocumentAnnotationThreadWithComments[]>(annotationsQueryKey);
+      queryClient.setQueryData<DocumentAnnotationThreadWithComments[]>(
+        annotationsQueryKey,
+        (current) => (current ?? []).map((thread) =>
+          thread.id === threadId ? { ...thread, status } : thread,
+        ),
+      );
+      return { previous };
+    },
+    onError: (_error, _variables, context) => {
+      if (context?.previous) {
+        queryClient.setQueryData(annotationsQueryKey, context.previous);
+      }
+    },
+    onSettled: () => invalidateAll(),
   });
 
   useEffect(() => {
@@ -194,28 +264,15 @@ function AnnotationPanelBody(props: AnnotationPanelProps) {
     }
   }, [props.open, props.pendingAnchor]);
 
-  useEffect(() => {
-    if (!props.focusedThreadId) return;
-    const focused = props.threads.find((thread) => thread.id === props.focusedThreadId);
-    if (!focused) return;
-    if (focused.anchorState === "orphaned") setFilter("orphan");
-    else if (focused.anchorState === "stale") setFilter("stale");
-    else if (focused.status === "resolved") setFilter("resolved");
-    else setFilter("open");
-  }, [props.focusedThreadId, props.threads]);
-
   return (
     <>
-      <header
+      <div
         data-testid={bodyTestId}
-        className="flex items-start justify-between gap-2 border-b border-border bg-popover px-3 py-2.5"
+        className="flex items-center justify-end gap-1 border-b border-border bg-popover px-2 py-1.5"
       >
-        <div className="min-w-0 leading-tight">
-          <p className="text-sm font-medium">Comments</p>
-          <p className="text-[11px] text-muted-foreground">
-            rev {props.documentRevisionNumber}
-          </p>
-        </div>
+        <span className="text-[11px] tabular-nums text-muted-foreground">
+          rev {props.documentRevisionNumber}
+        </span>
         <Button
           type="button"
           size="icon-xs"
@@ -229,31 +286,6 @@ function AnnotationPanelBody(props: AnnotationPanelProps) {
         >
           <X className="h-4 w-4" />
         </Button>
-      </header>
-      <div className="flex flex-wrap gap-1 border-b border-border bg-popover px-3 py-2">
-        {FILTERS.map((entry) => {
-          const count = counts[entry.id];
-          const isActive = filter === entry.id;
-          return (
-            <button
-              key={entry.id}
-              type="button"
-              onClick={() => setFilter(entry.id)}
-              data-active={isActive || undefined}
-              className={cn(
-                "inline-flex items-center gap-1 rounded-full border px-2 py-0.5 text-[11px] transition-colors",
-                isActive
-                  ? "border-border bg-muted text-foreground"
-                  : "border-transparent bg-transparent text-muted-foreground hover:bg-muted/60 hover:text-foreground",
-              )}
-            >
-              <span>{entry.label}</span>
-              <span className={cn("tabular-nums", isActive ? "text-muted-foreground" : "text-muted-foreground/70")}>
-                {count}
-              </span>
-            </button>
-          );
-        })}
       </div>
       {props.newCommentDisabled && props.newCommentDisabledReason ? (
         <p
@@ -264,13 +296,9 @@ function AnnotationPanelBody(props: AnnotationPanelProps) {
         </p>
       ) : null}
       <div className="min-h-0 flex-1 overflow-y-auto bg-popover px-3 py-2">
-        {filteredThreads.length === 0 ? (
-          <p className="py-8 text-center text-xs text-muted-foreground">
-            {filter === "open" ? "No open comments yet. Select text to add one." : `No ${filter} comments.`}
-          </p>
-        ) : (
+        {visibleThreads.length === 0 ? null : (
           <ul className="space-y-2">
-            {filteredThreads.map((thread) => (
+            {visibleThreads.map((thread) => (
               <ThreadCard
                 key={thread.id}
                 thread={thread}
@@ -306,9 +334,16 @@ function AnnotationPanelBody(props: AnnotationPanelProps) {
       </div>
       {props.pendingAnchor ? (
         <div className="border-t border-border bg-popover px-3 py-2">
-          <blockquote className="mb-2 line-clamp-3 overflow-hidden rounded-none bg-muted px-2 py-1 text-xs italic text-muted-foreground">
+          <blockquote className="mb-2 line-clamp-2 overflow-hidden rounded-none bg-muted px-2 py-1 text-xs italic leading-5 text-muted-foreground [overflow-wrap:anywhere]">
             {truncate(props.pendingAnchor.selectedText, 160)}
           </blockquote>
+          <div className="mb-1.5 flex items-center gap-1.5">
+            <Avatar size="xs" className="shrink-0">
+              {currentUser.image ? <AvatarImage src={currentUser.image} alt={currentUser.name} /> : null}
+              <AvatarFallback>{deriveInitials(currentUser.name)}</AvatarFallback>
+            </Avatar>
+            <span className="truncate text-[11px] font-medium text-foreground">{currentUser.name}</span>
+          </div>
           <Textarea
             ref={composerRef}
             data-testid="document-annotation-composer"
@@ -329,7 +364,7 @@ function AnnotationPanelBody(props: AnnotationPanelProps) {
                 }
               }
             }}
-            placeholder="Write a comment… (⌘↵ to submit)"
+            placeholder="Write a comment…"
             disabled={props.newCommentDisabled}
             className="resize-y rounded-none text-sm"
           />
@@ -386,14 +421,6 @@ function ThreadCard(props: {
   userProfileMap?: ReadonlyMap<string, CompanyUserProfile>;
 }) {
   const { thread } = props;
-  const statusVariant: { variant: "default" | "outline" | "secondary"; label: string } =
-    thread.status === "resolved"
-      ? { variant: "outline", label: "Resolved" }
-      : thread.anchorState === "orphaned"
-        ? { variant: "outline", label: "Orphaned" }
-        : thread.anchorState === "stale"
-          ? { variant: "outline", label: "Stale" }
-          : { variant: "default", label: "Open" };
   const latestComment = thread.comments[thread.comments.length - 1];
 
   return (
@@ -413,16 +440,10 @@ function ThreadCard(props: {
         tabIndex={0}
         onClick={props.onFocus}
       >
-        <div className="flex items-center justify-between gap-2 px-3 pt-2 text-[11px] text-muted-foreground">
-          <Badge variant={statusVariant.variant} className="px-1.5 py-0 text-[10px] uppercase tracking-[0.12em]">
-            {statusVariant.label}
-          </Badge>
-          <span>{relativeTime(thread.updatedAt)}</span>
-        </div>
         <blockquote
           id={`thread-quote-${thread.id}`}
           className={cn(
-            "mx-3 mt-1 line-clamp-2 overflow-hidden rounded-none bg-muted px-2 py-1 text-xs italic text-muted-foreground",
+            "mx-3 mt-2 line-clamp-2 overflow-hidden rounded-none bg-muted px-2 py-1 text-xs italic leading-5 text-muted-foreground [overflow-wrap:anywhere]",
             (thread.anchorState === "stale" || thread.status === "resolved") && "bg-muted",
           )}
         >
@@ -452,7 +473,7 @@ function ThreadCard(props: {
                   }
                 }
               }}
-              placeholder="Reply… (⌘↵ to submit)"
+              placeholder="Reply…"
               className="resize-y rounded-none text-sm"
               disabled={props.pendingReply}
             />
@@ -601,6 +622,81 @@ function resolveAuthor(
   return { name: comment.authorType === "agent" ? "Agent" : "Board", role: comment.authorType === "agent" ? "agent" : "board" };
 }
 
+interface OptimisticAuthor {
+  id: string | null;
+  name: string;
+  image: string | null;
+}
+
+function optimisticId(prefix: string): string {
+  const random = typeof crypto !== "undefined" && typeof crypto.randomUUID === "function"
+    ? crypto.randomUUID()
+    : `${Date.now()}-${Math.floor(Math.random() * 1e9)}`;
+  return `${prefix}-${random}`;
+}
+
+function buildOptimisticComment(input: {
+  body: string;
+  threadId: string;
+  issueId: string;
+  author: OptimisticAuthor;
+}): DocumentAnnotationComment {
+  const now = new Date();
+  return {
+    id: optimisticId("optimistic-comment"),
+    companyId: "",
+    threadId: input.threadId,
+    issueId: input.issueId,
+    documentId: "",
+    body: input.body,
+    authorType: "user",
+    authorAgentId: null,
+    authorUserId: input.author.id,
+    createdByRunId: null,
+    issueCommentId: null,
+    createdAt: now,
+    updatedAt: now,
+  };
+}
+
+function buildOptimisticThread(input: {
+  body: string;
+  selectedText: string;
+  issueId: string;
+  documentKey: string;
+  baseRevisionId: string;
+  baseRevisionNumber: number;
+  author: OptimisticAuthor;
+}): DocumentAnnotationThreadWithComments {
+  const id = optimisticId("optimistic-thread");
+  const now = new Date();
+  const comment = buildOptimisticComment({
+    body: input.body,
+    threadId: id,
+    issueId: input.issueId,
+    author: input.author,
+  });
+  // Only the fields the panel + overlay read need to be accurate; the optimistic
+  // thread is swapped for the server copy on success. Cast through unknown so we
+  // don't have to fabricate every backend-only column.
+  return {
+    id,
+    issueId: input.issueId,
+    documentKey: input.documentKey,
+    status: "open",
+    anchorState: "active",
+    selectedText: input.selectedText,
+    originalRevisionId: input.baseRevisionId,
+    originalRevisionNumber: input.baseRevisionNumber,
+    currentRevisionId: input.baseRevisionId,
+    currentRevisionNumber: input.baseRevisionNumber,
+    createdByUserId: input.author.id,
+    createdAt: now,
+    updatedAt: now,
+    comments: [comment],
+  } as unknown as DocumentAnnotationThreadWithComments;
+}
+
 function truncate(value: string, limit: number) {
   if (value.length <= limit) return value;
   return `${value.slice(0, limit - 1)}…`;

ui/src/components/IssueDocumentAnnotations.test.tsx

@@ -448,10 +448,11 @@ describe("IssueDocumentAnnotations", () => {
     expect(reason!.textContent).toMatch(/draft/i);
   });
 
-  it("filters resolved threads behind their tab", async () => {
+  it("shows open and resolved threads together in a single list (no filter tabs)", async () => {
     mockAnnotationsApi.list.mockResolvedValue([
       makeThread({ id: "open-1" }),
       makeThread({ id: "resolved-1", status: "resolved" }),
+      makeThread({ id: "orphan-1", anchorState: "orphaned" }),
     ]);
     const root = createRoot(container);
     const queryClient = makeQueryClient();
@@ -467,19 +468,17 @@ describe("IssueDocumentAnnotations", () => {
     await flush();
     await flush();
 
-    // Open filter shows only open
+    // Open + resolved both render without any filter interaction.
     expect(container.querySelector('[data-thread-id="open-1"]')).not.toBeNull();
-    expect(container.querySelector('[data-thread-id="resolved-1"]')).toBeNull();
-
-    // Switch to Resolved
-    const resolvedTab = Array.from(container.querySelectorAll("button")).find(
-      (button) => button.textContent?.startsWith("Resolved"),
-    );
-    expect(resolvedTab).not.toBeUndefined();
-    await act(async () => resolvedTab!.click());
-    await flush();
-
     expect(container.querySelector('[data-thread-id="resolved-1"]')).not.toBeNull();
+    // Orphaned threads can't be anchored in the doc, so they stay hidden.
+    expect(container.querySelector('[data-thread-id="orphan-1"]')).toBeNull();
+
+    // The Open/Resolved/Stale/Orphaned filter chips are gone.
+    const filterChip = Array.from(container.querySelectorAll("button")).find((button) =>
+      ["Open", "Resolved", "Stale", "Orphaned"].includes((button.textContent ?? "").trim()),
+    );
+    expect(filterChip).toBeUndefined();
   });
 
   it("renders author name + role from agent and user maps", async () => {
@@ -795,13 +794,7 @@ describe("IssueDocumentAnnotations", () => {
     await flush();
     expect(mockAnnotationsApi.updateStatus).toHaveBeenCalledWith("issue-1", "plan", "open-1", "resolved");
 
-    const resolvedTab = Array.from(container.querySelectorAll("button")).find(
-      (button) => button.textContent?.startsWith("Resolved"),
-    );
-    expect(resolvedTab).not.toBeUndefined();
-    await act(async () => resolvedTab!.click());
-    await flush();
-
+    // Resolved threads stay in the same list (filter tabs were removed).
     const resolvedThread = container.querySelector('[data-thread-id="resolved-1"]') as HTMLElement | null;
     expect(resolvedThread).not.toBeNull();
     await act(async () => resolvedThread!.click());

ui/src/components/IssueDocumentAnnotations.tsx

@@ -105,7 +105,12 @@ export function IssueDocumentAnnotations({
         boundaryWidth - DESKTOP_ANNOTATION_PANEL_VIEWPORT_MARGIN * 2,
       );
       const desiredWidth = Math.min(DESKTOP_ANNOTATION_PANEL_WIDTH, maxPanelWidth);
-      const top = Math.max(DESKTOP_ANNOTATION_PANEL_VIEWPORT_MARGIN, rect.top);
+      // Clamp the panel below the sticky top nav (the scroll container's top edge)
+      // so the comments thread never tucks under the nav bar while scrolling.
+      const boundaryTop = boundaryRect?.top ?? DESKTOP_ANNOTATION_PANEL_VIEWPORT_MARGIN;
+      const minTop = Math.max(DESKTOP_ANNOTATION_PANEL_VIEWPORT_MARGIN, boundaryTop)
+        + DESKTOP_ANNOTATION_PANEL_VIEWPORT_MARGIN;
+      const top = Math.max(minTop, rect.top);
       const desiredLeft = rect.right + DESKTOP_ANNOTATION_PANEL_GAP;
       const spaceRightOfDocument = boundaryRight
         - desiredLeft
@@ -328,6 +333,7 @@ export function IssueDocumentAnnotations({
             newCommentDisabledReason={newCommentDisabledReason}
             hideResolved
             captureSelectionRequestId={captureSelectionRequestId}
+            pendingHighlightText={composerAnchor?.selectedText ?? null}
           />
         ) : null}
       </section>

ui/storybook/stories/document-comments.stories.tsx

@@ -0,0 +1,188 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { useState } from "react";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import type {
+  DocumentAnnotationThreadWithComments,
+  DocumentAnnotationThreadStatus,
+  DocumentAnnotationAnchorState,
+} from "@paperclipai/shared";
+import { DocumentAnnotationPanel } from "@/components/DocumentAnnotationPanel";
+import type { PendingAnchor } from "@/components/DocumentAnnotationLayer";
+import type { CompanyUserProfile } from "@/lib/company-members";
+import { queryKeys } from "@/lib/queryKeys";
+
+const issueId = "issue-doc-comments";
+const documentKey = "plan";
+const currentUserId = "user-board";
+
+const userProfileMap = new Map<string, CompanyUserProfile>([
+  [currentUserId, { label: "Dotta", image: null }],
+  ["user-pm", { label: "Mara Product", image: null }],
+]);
+
+function makeThread(
+  overrides: Partial<DocumentAnnotationThreadWithComments> = {},
+): DocumentAnnotationThreadWithComments {
+  const id = overrides.id ?? "thread-1";
+  const status: DocumentAnnotationThreadStatus = overrides.status ?? "open";
+  const anchorState: DocumentAnnotationAnchorState = overrides.anchorState ?? "active";
+  return {
+    id,
+    companyId: "co-1",
+    issueId,
+    documentId: "doc-1",
+    documentKey,
+    status,
+    anchorState,
+    anchorConfidence: "exact",
+    originalRevisionId: "rev-4",
+    originalRevisionNumber: 4,
+    currentRevisionId: "rev-4",
+    currentRevisionNumber: 4,
+    selectedText:
+      "the assistant should keep the existing editor selection highlighted while the comment composer is open",
+    prefixText: "We agreed ",
+    suffixText: ".",
+    normalizedStart: 0,
+    normalizedEnd: 22,
+    markdownStart: 0,
+    markdownEnd: 22,
+    anchorSelector: {
+      quote: { exact: "selection", prefix: "We ", suffix: "." },
+      position: { normalizedStart: 0, normalizedEnd: 22, markdownStart: 0, markdownEnd: 22 },
+    },
+    createdByAgentId: null,
+    createdByUserId: currentUserId,
+    resolvedByAgentId: null,
+    resolvedByUserId: null,
+    resolvedAt: null,
+    createdAt: new Date("2026-06-12T00:01:00Z"),
+    updatedAt: new Date("2026-06-12T00:02:00Z"),
+    comments: [
+      {
+        id: `${id}-c1`,
+        companyId: "co-1",
+        threadId: id,
+        issueId,
+        documentId: "doc-1",
+        body: "Please confirm this is still the behaviour we want.",
+        authorType: "user",
+        authorAgentId: null,
+        authorUserId: "user-pm",
+        createdByRunId: null,
+        createdAt: new Date("2026-06-12T00:01:00Z"),
+        updatedAt: new Date("2026-06-12T00:01:00Z"),
+      },
+    ],
+    ...overrides,
+  };
+}
+
+const pendingAnchor: PendingAnchor = {
+  selector: {
+    quote: { exact: "extremely snappy", prefix: "feels ", suffix: "." },
+    position: { normalizedStart: 0, normalizedEnd: 16, markdownStart: 0, markdownEnd: 16 },
+  },
+  selectedText:
+    "submission of comments should be optimistic so the whole interaction feels extremely snappy",
+};
+
+function PanelFrame({
+  label,
+  threads,
+  focusedThreadId = null,
+  pending = null,
+}: {
+  label: string;
+  threads: DocumentAnnotationThreadWithComments[];
+  focusedThreadId?: string | null;
+  pending?: PendingAnchor | null;
+}) {
+  const [client] = useState(() => {
+    const qc = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+    qc.setQueryData(queryKeys.auth.session, {
+      session: { id: "sess-1", userId: currentUserId },
+      user: { id: currentUserId, email: "dotta@magicmachine.co", name: "Dotta", image: null },
+    });
+    return qc;
+  });
+  const [focused, setFocused] = useState<string | null>(focusedThreadId);
+
+  return (
+    <div className="flex flex-col gap-2">
+      <div className="paperclip-story__label">{label}</div>
+      <QueryClientProvider client={client}>
+        <div className="h-[460px]">
+          <DocumentAnnotationPanel
+            open
+            onOpenChange={() => undefined}
+            issueId={issueId}
+            documentKey={documentKey}
+            documentRevisionNumber={4}
+            baseRevisionId="rev-4"
+            baseRevisionNumber={4}
+            threads={threads}
+            focusedThreadId={focused}
+            onFocusThread={setFocused}
+            focusedCommentId={null}
+            pendingAnchor={pending}
+            onClearPendingAnchor={() => undefined}
+            desktopWidth={360}
+            userProfileMap={userProfileMap}
+          />
+        </div>
+      </QueryClientProvider>
+    </div>
+  );
+}
+
+function DocumentCommentsMatrix() {
+  return (
+    <div className="paperclip-story">
+      <main className="paperclip-story__inner">
+        <section className="paperclip-story__frame overflow-hidden">
+          <div className="border-b border-border px-5 py-4">
+            <div className="paperclip-story__label">Document comments · PAP-10960</div>
+            <h2 className="mt-1 text-xl font-semibold">Simplified annotation panel</h2>
+            <p className="mt-1 text-sm text-muted-foreground">
+              No header, no filter chips, no empty-state copy. Revision indicator sits top-right.
+              The composer shows the author avatar + name, two-line clamped quote, and a plain
+              "Reply" affordance.
+            </p>
+          </div>
+          <div className="flex flex-wrap items-start gap-6 p-5">
+            <PanelFrame label="No comments yet" threads={[]} />
+            <PanelFrame
+              label="With comments (one expanded)"
+              threads={[
+                makeThread({ id: "thread-1" }),
+                makeThread({ id: "thread-2", status: "resolved", selectedText: "a resolved thread stays in the same list" }),
+              ]}
+              focusedThreadId="thread-1"
+            />
+            <PanelFrame label="Composing a new comment" threads={[makeThread({ id: "thread-1" })]} pending={pendingAnchor} />
+          </div>
+        </section>
+      </main>
+    </div>
+  );
+}
+
+const meta = {
+  title: "Product/Document Comments",
+  component: DocumentCommentsMatrix,
+  parameters: {
+    docs: {
+      description: {
+        component:
+          "Inline document comment panel (PAP-10960): simplified to drop the header, filter chips, and empty-state, surface the author identity in the composer, and clamp quotes to two lines.",
+      },
+    },
+  },
+} satisfies Meta<typeof DocumentCommentsMatrix>;
+
+export default meta;
+
+type Story = StoryObj<typeof meta>;
+
+export const Panel: Story = {};