diff --git a/.jules/palette.md b/.jules/palette.md
new file mode 100644
index 00000000..41cf64b9
--- /dev/null
+++ b/.jules/palette.md
@@ -0,0 +1,3 @@
+## 2023-10-24 - 장식용 화살표 아이콘 접근성 개선
+**Learning:** Lucide의 `Chevron` 시리즈 등 단순 장식용 아이콘들이 스크린 리더에서 읽히는 문제가 있었습니다.
+**Action:** 장식용 아이콘에는 항상 `aria-hidden="true"`를 추가하여 스크린 리더 사용성을 개선합니다.
diff --git a/packages/web/src/components/dashboard/event-list.tsx b/packages/web/src/components/dashboard/event-list.tsx
index a09d971a..50268461 100644
--- a/packages/web/src/components/dashboard/event-list.tsx
+++ b/packages/web/src/components/dashboard/event-list.tsx
@@ -113,7 +113,8 @@ function getSinglePreview(event: TimelineEvent): string {
     return normalized.slice(0, 80);
   }
   if (event.isSkillCall && event.skillName) return `Skill: ${event.skillName}`;
-  if (event.isAgentCall && event.agentType) return `Subagent: ${event.agentType}`;
+  if (event.isAgentCall && event.agentType)
+    return `Subagent: ${event.agentType}`;
   return event.toolName;
 }
 
@@ -179,6 +180,7 @@ function RowView({
       <span className="flex-1 min-w-0 flex items-center gap-1 text-sm text-muted-foreground">
         {chevron !== undefined && (
           <ChevronRight
+            aria-hidden="true"
             className={cn(
               "h-3 w-3 shrink-0 transition-transform",
               chevron === "expanded" && "rotate-90",
@@ -231,11 +233,12 @@ function Row({
   }
 
   const label = row.labelOverride ?? getSingleLabel(row.event);
-  const preview = row.labelOverride === "Tool"
-    ? row.event.kind === "tool"
-      ? row.event.toolName
-      : getSinglePreview(row.event)
-    : getSinglePreview(row.event);
+  const preview =
+    row.labelOverride === "Tool"
+      ? row.event.kind === "tool"
+        ? row.event.toolName
+        : getSinglePreview(row.event)
+      : getSinglePreview(row.event);
 
   return (
     <div style={style} role="listitem">
diff --git a/packages/web/src/components/dashboard/reports/context-section.tsx b/packages/web/src/components/dashboard/reports/context-section.tsx
index 855345bd..d00dd066 100644
--- a/packages/web/src/components/dashboard/reports/context-section.tsx
+++ b/packages/web/src/components/dashboard/reports/context-section.tsx
@@ -1,20 +1,24 @@
-'use client'
+"use client";
 
-import React, { useState, useId, type ReactNode } from 'react'
-import { ChevronDown, ChevronUp } from 'lucide-react'
-import { cn } from '@/lib/utils'
+import React, { useState, useId, type ReactNode } from "react";
+import { ChevronDown, ChevronUp } from "lucide-react";
+import { cn } from "@/lib/utils";
 
 interface ContextSectionProps {
-  title: string
-  children: ReactNode
-  defaultOpen?: boolean
+  title: string;
+  children: ReactNode;
+  defaultOpen?: boolean;
 }
 
-export function ContextSection({ title, children, defaultOpen = false }: ContextSectionProps) {
-  const [open, setOpen] = useState(defaultOpen)
-  const id = useId()
-  const buttonId = `context-section-btn-${id}`
-  const contentId = `context-section-content-${id}`
+export function ContextSection({
+  title,
+  children,
+  defaultOpen = false,
+}: ContextSectionProps) {
+  const [open, setOpen] = useState(defaultOpen);
+  const id = useId();
+  const buttonId = `context-section-btn-${id}`;
+  const contentId = `context-section-content-${id}`;
 
   return (
     <div className="rounded-xl bg-card ring-1 ring-foreground/10 overflow-hidden">
@@ -23,17 +27,23 @@ export function ContextSection({ title, children, defaultOpen = false }: Context
         id={buttonId}
         onClick={() => setOpen((v) => !v)}
         className={cn(
-          'w-full flex items-center justify-between px-4 py-3 text-left',
-          'hover:bg-card-elevated transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring',
+          "w-full flex items-center justify-between px-4 py-3 text-left",
+          "hover:bg-card-elevated transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring",
         )}
         aria-expanded={open}
         aria-controls={contentId}
       >
         <h2 className="text-base font-medium">{title}</h2>
         {open ? (
-          <ChevronUp className="h-4 w-4 text-muted-foreground" />
+          <ChevronUp
+            className="h-4 w-4 text-muted-foreground"
+            aria-hidden="true"
+          />
         ) : (
-          <ChevronDown className="h-4 w-4 text-muted-foreground" />
+          <ChevronDown
+            className="h-4 w-4 text-muted-foreground"
+            aria-hidden="true"
+          />
         )}
       </button>
       {open && (
@@ -47,5 +57,5 @@ export function ContextSection({ title, children, defaultOpen = false }: Context
         </div>
       )}
     </div>
-  )
+  );
 }
diff --git a/packages/web/src/components/dashboard/reports/week-navigator.tsx b/packages/web/src/components/dashboard/reports/week-navigator.tsx
index fcf398a6..106b1590 100644
--- a/packages/web/src/components/dashboard/reports/week-navigator.tsx
+++ b/packages/web/src/components/dashboard/reports/week-navigator.tsx
@@ -1,60 +1,68 @@
-'use client'
+"use client";
 
-import Link from 'next/link'
-import { usePathname, useSearchParams } from 'next/navigation'
-import { ChevronLeft, ChevronRight } from 'lucide-react'
-import { buttonVariants } from '@/components/ui/button'
-import { cn } from '@/lib/utils'
+import Link from "next/link";
+import { usePathname, useSearchParams } from "next/navigation";
+import { ChevronLeft, ChevronRight } from "lucide-react";
+import { buttonVariants } from "@/components/ui/button";
+import { cn } from "@/lib/utils";
 
 interface WeekNavigatorProps {
-  currentIsoKey: string  // e.g. "2026-W16"
-  label: string          // e.g. "2026-W16 (4/13~4/19)"
-  isCurrent: boolean     // 오늘이 포함된 주
+  currentIsoKey: string; // e.g. "2026-W16"
+  label: string; // e.g. "2026-W16 (4/13~4/19)"
+  isCurrent: boolean; // 오늘이 포함된 주
 }
 
 /** "YYYY-Www" → 직전/다음 주 ISO key 계산 */
 function shiftWeek(iso: string, offset: number): string | null {
-  const m = iso.match(/^(\d{4})-W(\d{1,2})$/)
-  if (!m) return null
-  const year = parseInt(m[1], 10)
-  const week = parseInt(m[2], 10)
+  const m = iso.match(/^(\d{4})-W(\d{1,2})$/);
+  if (!m) return null;
+  const year = parseInt(m[1], 10);
+  const week = parseInt(m[2], 10);
 
   // 간단한 접근: ISO week를 ms로 환산하지 않고, jan4 기반으로 ±offset 주 이동
-  const jan4 = new Date(Date.UTC(year, 0, 4))
-  const cur = new Date(jan4.getTime() + (week - 1 + offset) * 7 * 24 * 60 * 60 * 1000)
+  const jan4 = new Date(Date.UTC(year, 0, 4));
+  const cur = new Date(
+    jan4.getTime() + (week - 1 + offset) * 7 * 24 * 60 * 60 * 1000,
+  );
 
   // ISO week year + week 재계산
-  const tmp = new Date(cur.getTime())
+  const tmp = new Date(cur.getTime());
   // ISO week: Thursday가 속한 해가 week year
-  tmp.setUTCDate(tmp.getUTCDate() + 4 - (tmp.getUTCDay() || 7))
-  const isoYear = tmp.getUTCFullYear()
-  const yearStart = new Date(Date.UTC(isoYear, 0, 1))
-  const isoWeek = Math.ceil(((tmp.getTime() - yearStart.getTime()) / (24 * 60 * 60 * 1000) + 1) / 7)
-  return `${isoYear}-W${String(isoWeek).padStart(2, '0')}`
+  tmp.setUTCDate(tmp.getUTCDate() + 4 - (tmp.getUTCDay() || 7));
+  const isoYear = tmp.getUTCFullYear();
+  const yearStart = new Date(Date.UTC(isoYear, 0, 1));
+  const isoWeek = Math.ceil(
+    ((tmp.getTime() - yearStart.getTime()) / (24 * 60 * 60 * 1000) + 1) / 7,
+  );
+  return `${isoYear}-W${String(isoWeek).padStart(2, "0")}`;
 }
 
-export function WeekNavigator({ currentIsoKey, label, isCurrent }: WeekNavigatorProps) {
-  const pathname = usePathname()
-  const searchParams = useSearchParams()
+export function WeekNavigator({
+  currentIsoKey,
+  label,
+  isCurrent,
+}: WeekNavigatorProps) {
+  const pathname = usePathname();
+  const searchParams = useSearchParams();
 
   const buildHref = (targetIso: string | null) => {
-    if (!targetIso) return pathname
-    const params = new URLSearchParams(searchParams.toString())
-    params.set('week', targetIso)
-    return `${pathname}?${params.toString()}`
-  }
+    if (!targetIso) return pathname;
+    const params = new URLSearchParams(searchParams.toString());
+    params.set("week", targetIso);
+    return `${pathname}?${params.toString()}`;
+  };
 
-  const prevIso = shiftWeek(currentIsoKey, -1)
-  const nextIso = shiftWeek(currentIsoKey, 1)
+  const prevIso = shiftWeek(currentIsoKey, -1);
+  const nextIso = shiftWeek(currentIsoKey, 1);
 
   return (
     <div className="flex items-center gap-2">
       <Link
         href={buildHref(prevIso)}
         aria-label="이전 주"
-        className={cn(buttonVariants({ variant: 'outline', size: 'icon-sm' }))}
+        className={cn(buttonVariants({ variant: "outline", size: "icon-sm" }))}
       >
-        <ChevronLeft className="h-4 w-4" />
+        <ChevronLeft className="h-4 w-4" aria-hidden="true" />
       </Link>
       <div className="flex items-center gap-2 px-3 py-1.5 rounded-md bg-muted">
         <span className="text-sm font-medium tabular-nums">{label}</span>
@@ -67,10 +75,10 @@ export function WeekNavigator({ currentIsoKey, label, isCurrent }: WeekNavigator
       <Link
         href={buildHref(nextIso)}
         aria-label="다음 주"
-        className={cn(buttonVariants({ variant: 'outline', size: 'icon-sm' }))}
+        className={cn(buttonVariants({ variant: "outline", size: "icon-sm" }))}
       >
-        <ChevronRight className="h-4 w-4" />
+        <ChevronRight className="h-4 w-4" aria-hidden="true" />
       </Link>
     </div>
-  )
+  );
 }
diff --git a/packages/web/src/components/ui/pagination.tsx b/packages/web/src/components/ui/pagination.tsx
index e376f313..348c83d1 100644
--- a/packages/web/src/components/ui/pagination.tsx
+++ b/packages/web/src/components/ui/pagination.tsx
@@ -1,27 +1,27 @@
-'use client'
+"use client";
 
-import { ChevronLeftIcon, ChevronRightIcon } from 'lucide-react'
-import { Button } from '@/components/ui/button'
+import { ChevronLeftIcon, ChevronRightIcon } from "lucide-react";
+import { Button } from "@/components/ui/button";
 import {
   Select,
   SelectContent,
   SelectItem,
   SelectTrigger,
   SelectValue,
-} from '@/components/ui/select'
-import { cn } from '@/lib/utils'
+} from "@/components/ui/select";
+import { cn } from "@/lib/utils";
 
 type PaginationProps = {
-  page: number
-  pageSize: number
-  total: number
-  onPageChange: (page: number) => void
-  onPageSizeChange?: (pageSize: number) => void
-  pageSizeOptions?: number[]
-  className?: string
+  page: number;
+  pageSize: number;
+  total: number;
+  onPageChange: (page: number) => void;
+  onPageSizeChange?: (pageSize: number) => void;
+  pageSizeOptions?: number[];
+  className?: string;
   /** 페이지 수가 1 이하여도 count 라벨은 표시 (기본 true). false면 전체 숨김 */
-  alwaysShowLabel?: boolean
-}
+  alwaysShowLabel?: boolean;
+};
 
 /**
  * 1 … x-1 [x] x+1 … N 형태로 축약된 페이지 번호를 계산.
@@ -29,19 +29,19 @@ type PaginationProps = {
  */
 function getPageList(current: number, totalPages: number): (number | -1)[] {
   if (totalPages <= 7) {
-    return Array.from({ length: totalPages }, (_, i) => i + 1)
+    return Array.from({ length: totalPages }, (_, i) => i + 1);
   }
 
-  const pages: (number | -1)[] = [1]
-  const start = Math.max(2, current - 1)
-  const end = Math.min(totalPages - 1, current + 1)
+  const pages: (number | -1)[] = [1];
+  const start = Math.max(2, current - 1);
+  const end = Math.min(totalPages - 1, current + 1);
 
-  if (start > 2) pages.push(-1)
-  for (let p = start; p <= end; p++) pages.push(p)
-  if (end < totalPages - 1) pages.push(-1)
+  if (start > 2) pages.push(-1);
+  for (let p = start; p <= end; p++) pages.push(p);
+  if (end < totalPages - 1) pages.push(-1);
 
-  pages.push(totalPages)
-  return pages
+  pages.push(totalPages);
+  return pages;
 }
 
 export function Pagination({
@@ -54,19 +54,19 @@ export function Pagination({
   className,
   alwaysShowLabel = true,
 }: PaginationProps) {
-  const totalPages = Math.max(1, Math.ceil(total / pageSize))
-  const safePage = Math.min(Math.max(1, page), totalPages)
-  const startIdx = total === 0 ? 0 : (safePage - 1) * pageSize + 1
-  const endIdx = Math.min(safePage * pageSize, total)
+  const totalPages = Math.max(1, Math.ceil(total / pageSize));
+  const safePage = Math.min(Math.max(1, page), totalPages);
+  const startIdx = total === 0 ? 0 : (safePage - 1) * pageSize + 1;
+  const endIdx = Math.min(safePage * pageSize, total);
 
-  if (totalPages <= 1 && !alwaysShowLabel) return null
+  if (totalPages <= 1 && !alwaysShowLabel) return null;
 
-  const pageList = getPageList(safePage, totalPages)
+  const pageList = getPageList(safePage, totalPages);
 
   return (
     <div
       className={cn(
-        'flex flex-col gap-3 border-t border-border bg-muted/20 px-4 py-3 text-xs text-muted-foreground sm:flex-row sm:items-center sm:justify-between',
+        "flex flex-col gap-3 border-t border-border bg-muted/20 px-4 py-3 text-xs text-muted-foreground sm:flex-row sm:items-center sm:justify-between",
         className,
       )}
     >
@@ -75,7 +75,11 @@ export function Pagination({
           <span>결과 없음</span>
         ) : (
           <span>
-            총 <span className="text-foreground font-medium">{total.toLocaleString()}</span>개 중{' '}
+            총{" "}
+            <span className="text-foreground font-medium">
+              {total.toLocaleString()}
+            </span>
+            개 중{" "}
             <span className="text-foreground font-medium">
               {startIdx.toLocaleString()}–{endIdx.toLocaleString()}
             </span>
@@ -90,7 +94,7 @@ export function Pagination({
             <Select
               value={String(pageSize)}
               onValueChange={(value) => {
-                if (value) onPageSizeChange(Number(value))
+                if (value) onPageSizeChange(Number(value));
               }}
             >
               <SelectTrigger size="sm" className="min-w-[60px]">
@@ -98,7 +102,11 @@ export function Pagination({
               </SelectTrigger>
               <SelectContent alignItemWithTrigger={false} className="p-1">
                 {pageSizeOptions.map((size) => (
-                  <SelectItem key={size} value={String(size)} className="px-2 py-1.5">
+                  <SelectItem
+                    key={size}
+                    value={String(size)}
+                    className="px-2 py-1.5"
+                  >
                     {size}
                   </SelectItem>
                 ))}
@@ -116,7 +124,7 @@ export function Pagination({
               disabled={safePage <= 1}
               aria-label="이전 페이지"
             >
-              <ChevronLeftIcon />
+              <ChevronLeftIcon aria-hidden="true" />
             </Button>
 
             {/* 모바일: 현재 페이지 / 전체만 표시 */}
@@ -137,11 +145,11 @@ export function Pagination({
                 ) : (
                   <Button
                     key={p}
-                    variant={p === safePage ? 'default' : 'ghost'}
+                    variant={p === safePage ? "default" : "ghost"}
                     size="icon-sm"
                     onClick={() => onPageChange(p)}
                     className="tabular-nums"
-                    aria-current={p === safePage ? 'page' : undefined}
+                    aria-current={p === safePage ? "page" : undefined}
                   >
                     {p}
                   </Button>
@@ -156,11 +164,11 @@ export function Pagination({
               disabled={safePage >= totalPages}
               aria-label="다음 페이지"
             >
-              <ChevronRightIcon />
+              <ChevronRightIcon aria-hidden="true" />
             </Button>
           </div>
         )}
       </div>
     </div>
-  )
+  );
 }