diff --git a/packages/ui/src/components/session-list.tsx b/packages/ui/src/components/session-list.tsx
index 74bc0cfc..58e52196 100644
--- a/packages/ui/src/components/session-list.tsx
+++ b/packages/ui/src/components/session-list.tsx
@@ -2,7 +2,7 @@ import { Component, For, Show, createSignal, createMemo, createEffect, JSX, onCl
 import type { SessionStatus } from "../types/session"
 import type { SessionThread } from "../stores/session-state"
 import { getSessionStatus } from "../stores/session-status"
-import { Bot, User, Copy, Trash2, Pencil, ShieldAlert, ChevronDown, Search, Square, CheckSquare, MinusSquare, Split } from "lucide-solid"
+import { Bot, User, Copy, Trash2, Pencil, ShieldAlert, ChevronDown, Search, Square, CheckSquare, MinusSquare, Split, RotateCw } from "lucide-solid"
 import KeyboardHint from "./keyboard-hint"
 import SessionRenameDialog from "./session-rename-dialog"
 import { keyboardRegistry } from "../lib/keyboard-registry"
@@ -14,6 +14,7 @@ import {
   ensureSessionParentExpanded,
   getVisibleSessionIds,
   isSessionParentExpanded,
+  loadMessages,
   loading,
   renameSession,
   sessions as sessionStateSessions,
@@ -53,6 +54,7 @@ const SessionList: Component<SessionListProps> = (props) => {
   const normalizedQuery = createMemo(() => (props.enableFilterBar ? filterQuery().trim().toLowerCase() : ""))
 
   const [selectedSessionIds, setSelectedSessionIds] = createSignal<Set<string>>(new Set())
+  const [reloadingSessionIds, setReloadingSessionIds] = createSignal<Set<string>>(new Set())
 
   const normalizeSessionLabel = (sessionId: string) => {
     const session = sessionStateSessions().get(props.instanceId)?.get(sessionId)
@@ -213,6 +215,32 @@ const SessionList: Component<SessionListProps> = (props) => {
     setRenameTarget({ id: sessionId, title: session.title ?? "", label })
   }
 
+  const isSessionReloading = (sessionId: string) => reloadingSessionIds().has(sessionId)
+
+  const handleReloadSession = async (event: MouseEvent, sessionId: string) => {
+    event.stopPropagation()
+    if (isSessionReloading(sessionId)) return
+
+    setReloadingSessionIds((prev) => {
+      const next = new Set(prev)
+      next.add(sessionId)
+      return next
+    })
+
+    try {
+      await loadMessages(props.instanceId, sessionId, true)
+    } catch (error) {
+      log.error(`Failed to reload session ${sessionId}:`, error)
+      showToastNotification({ message: t("sessionList.reload.error"), variant: "error" })
+    } finally {
+      setReloadingSessionIds((prev) => {
+        const next = new Set(prev)
+        next.delete(sessionId)
+        return next
+      })
+    }
+  }
+
   const closeRenameDialog = () => {
     setRenameTarget(null)
   }
@@ -493,6 +521,21 @@ const SessionList: Component<SessionListProps> = (props) => {
               >
                 <Copy class="w-3 h-3" />
               </span>
+              <span
+                class={`session-item-close opacity-80 hover:opacity-100 ${isActive() ? "hover:bg-white/20" : "hover:bg-surface-hover"}`}
+                onClick={(event) => handleReloadSession(event, rowProps.sessionId)}
+                role="button"
+                tabIndex={0}
+                aria-label={t("sessionList.actions.reload.ariaLabel")}
+                title={t("sessionList.actions.reload.title")}
+              >
+                <Show
+                  when={!isSessionReloading(rowProps.sessionId)}
+                  fallback={<RotateCw class="w-3 h-3 animate-spin" />}
+                >
+                  <RotateCw class="w-3 h-3" />
+                </Show>
+              </span>
               <span
                 class={`session-item-close opacity-80 hover:opacity-100 ${isActive() ? "hover:bg-white/20" : "hover:bg-surface-hover"}`}
                 onClick={(event) => {
diff --git a/packages/ui/src/lib/i18n/messages/en/session.ts b/packages/ui/src/lib/i18n/messages/en/session.ts
index d5db91b0..63874bf7 100644
--- a/packages/ui/src/lib/i18n/messages/en/session.ts
+++ b/packages/ui/src/lib/i18n/messages/en/session.ts
@@ -25,12 +25,15 @@ export const sessionMessages = {
   "sessionList.actions.newSession.title": "New session",
   "sessionList.actions.copyId.ariaLabel": "Copy session ID",
   "sessionList.actions.copyId.title": "Copy session ID",
+  "sessionList.actions.reload.ariaLabel": "Reload session",
+  "sessionList.actions.reload.title": "Reload session",
   "sessionList.actions.rename.ariaLabel": "Rename session",
   "sessionList.actions.rename.title": "Rename session",
   "sessionList.actions.delete.ariaLabel": "Delete session",
   "sessionList.actions.delete.title": "Delete session",
   "sessionList.copyId.success": "Session ID copied",
   "sessionList.copyId.error": "Unable to copy session ID",
+  "sessionList.reload.error": "Unable to reload session",
   "sessionList.delete.error": "Unable to delete session",
   "sessionList.delete.title": "Delete session",
   "sessionList.delete.confirmMessage": "Delete \"{label}\"? This cannot be undone.",
diff --git a/packages/ui/src/lib/i18n/messages/es/session.ts b/packages/ui/src/lib/i18n/messages/es/session.ts
index 313bcadb..53f918aa 100644
--- a/packages/ui/src/lib/i18n/messages/es/session.ts
+++ b/packages/ui/src/lib/i18n/messages/es/session.ts
@@ -25,12 +25,15 @@ export const sessionMessages = {
   "sessionList.actions.newSession.title": "Nueva sesión",
   "sessionList.actions.copyId.ariaLabel": "Copiar ID de sesión",
   "sessionList.actions.copyId.title": "Copiar ID de sesión",
+  "sessionList.actions.reload.ariaLabel": "Recargar sesión",
+  "sessionList.actions.reload.title": "Recargar sesión",
   "sessionList.actions.rename.ariaLabel": "Renombrar sesión",
   "sessionList.actions.rename.title": "Renombrar sesión",
   "sessionList.actions.delete.ariaLabel": "Eliminar sesión",
   "sessionList.actions.delete.title": "Eliminar sesión",
   "sessionList.copyId.success": "ID de sesión copiado",
   "sessionList.copyId.error": "No se pudo copiar el ID de sesión",
+  "sessionList.reload.error": "No se pudo recargar la sesión",
   "sessionList.delete.error": "No se pudo eliminar la sesión",
   "sessionList.delete.title": "Eliminar sesión",
   "sessionList.delete.confirmMessage": "¿Eliminar \"{label}\"? Esto no se puede deshacer.",
diff --git a/packages/ui/src/lib/i18n/messages/fr/session.ts b/packages/ui/src/lib/i18n/messages/fr/session.ts
index 96c13c30..72e24c9a 100644
--- a/packages/ui/src/lib/i18n/messages/fr/session.ts
+++ b/packages/ui/src/lib/i18n/messages/fr/session.ts
@@ -25,12 +25,15 @@ export const sessionMessages = {
   "sessionList.actions.newSession.title": "Nouvelle session",
   "sessionList.actions.copyId.ariaLabel": "Copier l'ID de session",
   "sessionList.actions.copyId.title": "Copier l'ID de session",
+  "sessionList.actions.reload.ariaLabel": "Recharger la session",
+  "sessionList.actions.reload.title": "Recharger la session",
   "sessionList.actions.rename.ariaLabel": "Renommer la session",
   "sessionList.actions.rename.title": "Renommer la session",
   "sessionList.actions.delete.ariaLabel": "Supprimer la session",
   "sessionList.actions.delete.title": "Supprimer la session",
   "sessionList.copyId.success": "ID de session copié",
   "sessionList.copyId.error": "Impossible de copier l'ID de session",
+  "sessionList.reload.error": "Impossible de recharger la session",
   "sessionList.delete.error": "Impossible de supprimer la session",
   "sessionList.delete.title": "Supprimer la session",
   "sessionList.delete.confirmMessage": "Supprimer \"{label}\" ? Cette action est irréversible.",
diff --git a/packages/ui/src/lib/i18n/messages/he/session.ts b/packages/ui/src/lib/i18n/messages/he/session.ts
index 6ff5035a..ae104cfa 100644
--- a/packages/ui/src/lib/i18n/messages/he/session.ts
+++ b/packages/ui/src/lib/i18n/messages/he/session.ts
@@ -25,12 +25,15 @@ export const sessionMessages = {
   "sessionList.actions.newSession.title": "סשן חדש",
   "sessionList.actions.copyId.ariaLabel": "העתק מזהה סשן",
   "sessionList.actions.copyId.title": "העתק מזהה סשן",
+  "sessionList.actions.reload.ariaLabel": "טען מחדש סשן",
+  "sessionList.actions.reload.title": "טען מחדש סשן",
   "sessionList.actions.rename.ariaLabel": "שנה שם סשן",
   "sessionList.actions.rename.title": "שנה שם סשן",
   "sessionList.actions.delete.ariaLabel": "מחק סשן",
   "sessionList.actions.delete.title": "מחק סשן",
   "sessionList.copyId.success": "מזהה סשן הועתק",
   "sessionList.copyId.error": "לא ניתן להעתיק מזהה סשן",
+  "sessionList.reload.error": "לא ניתן לטעון מחדש את הסשן",
   "sessionList.delete.error": "לא ניתן למחוק סשן",
   "sessionList.delete.title": "מחק סשן",
   "sessionList.delete.confirmMessage": "למחוק את \"{label}\"? לא ניתן לבטל פעולה זו.",
diff --git a/packages/ui/src/lib/i18n/messages/ja/session.ts b/packages/ui/src/lib/i18n/messages/ja/session.ts
index c7e33291..c8d72f92 100644
--- a/packages/ui/src/lib/i18n/messages/ja/session.ts
+++ b/packages/ui/src/lib/i18n/messages/ja/session.ts
@@ -25,12 +25,15 @@ export const sessionMessages = {
   "sessionList.actions.newSession.title": "新しいセッション",
   "sessionList.actions.copyId.ariaLabel": "セッション ID をコピー",
   "sessionList.actions.copyId.title": "セッション ID をコピー",
+  "sessionList.actions.reload.ariaLabel": "セッションを再読み込み",
+  "sessionList.actions.reload.title": "セッションを再読み込み",
   "sessionList.actions.rename.ariaLabel": "セッション名を変更",
   "sessionList.actions.rename.title": "セッション名を変更",
   "sessionList.actions.delete.ariaLabel": "セッションを削除",
   "sessionList.actions.delete.title": "セッションを削除",
   "sessionList.copyId.success": "セッション ID をコピーしました",
   "sessionList.copyId.error": "セッション ID をコピーできません",
+  "sessionList.reload.error": "セッションを再読み込みできません",
   "sessionList.delete.error": "セッションを削除できません",
   "sessionList.delete.title": "セッションを削除",
   "sessionList.delete.confirmMessage": "\"{label}\" を削除しますか？この操作は元に戻せません。",
diff --git a/packages/ui/src/lib/i18n/messages/ru/session.ts b/packages/ui/src/lib/i18n/messages/ru/session.ts
index 5a17fd7e..bf36bdeb 100644
--- a/packages/ui/src/lib/i18n/messages/ru/session.ts
+++ b/packages/ui/src/lib/i18n/messages/ru/session.ts
@@ -25,12 +25,15 @@ export const sessionMessages = {
   "sessionList.actions.newSession.title": "Новая сессия",
   "sessionList.actions.copyId.ariaLabel": "Скопировать ID сессии",
   "sessionList.actions.copyId.title": "Скопировать ID сессии",
+  "sessionList.actions.reload.ariaLabel": "Обновить сессию",
+  "sessionList.actions.reload.title": "Обновить сессию",
   "sessionList.actions.rename.ariaLabel": "Переименовать сессию",
   "sessionList.actions.rename.title": "Переименовать сессию",
   "sessionList.actions.delete.ariaLabel": "Удалить сессию",
   "sessionList.actions.delete.title": "Удалить сессию",
   "sessionList.copyId.success": "ID сессии скопирован",
   "sessionList.copyId.error": "Не удалось скопировать ID сессии",
+  "sessionList.reload.error": "Не удалось обновить сессию",
   "sessionList.delete.error": "Не удалось удалить сессию",
   "sessionList.delete.title": "Удалить сессию",
   "sessionList.delete.confirmMessage": "Удалить \"{label}\"? Это действие нельзя отменить.",
diff --git a/packages/ui/src/lib/i18n/messages/zh-Hans/session.ts b/packages/ui/src/lib/i18n/messages/zh-Hans/session.ts
index d58554e1..1aa5fcb6 100644
--- a/packages/ui/src/lib/i18n/messages/zh-Hans/session.ts
+++ b/packages/ui/src/lib/i18n/messages/zh-Hans/session.ts
@@ -25,12 +25,15 @@ export const sessionMessages = {
   "sessionList.actions.newSession.title": "新建会话",
   "sessionList.actions.copyId.ariaLabel": "复制会话 ID",
   "sessionList.actions.copyId.title": "复制会话 ID",
+  "sessionList.actions.reload.ariaLabel": "重新加载会话",
+  "sessionList.actions.reload.title": "重新加载会话",
   "sessionList.actions.rename.ariaLabel": "重命名会话",
   "sessionList.actions.rename.title": "重命名会话",
   "sessionList.actions.delete.ariaLabel": "删除会话",
   "sessionList.actions.delete.title": "删除会话",
   "sessionList.copyId.success": "已复制会话 ID",
   "sessionList.copyId.error": "无法复制会话 ID",
+  "sessionList.reload.error": "无法重新加载会话",
   "sessionList.delete.error": "无法删除会话",
   "sessionList.delete.title": "删除会话",
   "sessionList.delete.confirmMessage": "删除“{label}”？此操作无法撤销。",