diff --git a/.changeset/archive-label.md b/.changeset/archive-label.md
new file mode 100644
index 000000000..697549d19
--- /dev/null
+++ b/.changeset/archive-label.md
@@ -0,0 +1,5 @@
+---
+"@moonshot-ai/kimi-code": patch
+---
+
+Clarify that session archive is irreversible by relabeling as Delete.
diff --git a/apps/kimi-web/src/i18n/locales/en/sidebar.ts b/apps/kimi-web/src/i18n/locales/en/sidebar.ts
index c479adeb8..822576d84 100644
--- a/apps/kimi-web/src/i18n/locales/en/sidebar.ts
+++ b/apps/kimi-web/src/i18n/locales/en/sidebar.ts
@@ -5,13 +5,16 @@ export default {
   newChat: 'New Chat',
   newWorkspace: 'New Workspace',
   emptyState: 'No sessions yet · click New Session to start',
-  archiveConfirm: 'Archive session?',
+  archiveConfirm: 'Permanently delete this session? This action cannot be undone.',
   confirm: 'Confirm',
   cancel: 'Cancel',
   options: 'Options',
   rename: 'Rename',
   copyPath: 'Copy path',
-  archive: 'Archive',
+  copySessionId: 'Copy session ID ⧉',
+  copied: 'Copied ✓',
+  copyFailed: 'Copy failed',
+  archive: 'Delete',
   fork: 'Fork session',
   delete: 'Delete',
   removeWorkspace: 'Remove workspace',
diff --git a/apps/kimi-web/src/i18n/locales/zh/sidebar.ts b/apps/kimi-web/src/i18n/locales/zh/sidebar.ts
index 3606d3a73..0235bea10 100644
--- a/apps/kimi-web/src/i18n/locales/zh/sidebar.ts
+++ b/apps/kimi-web/src/i18n/locales/zh/sidebar.ts
@@ -5,13 +5,16 @@ export default {
   newChat: '新建对话',
   newWorkspace: '新建工作区',
   emptyState: '还没有会话 · 点击 新建会话 开始',
-  archiveConfirm: '归档会话?',
+  archiveConfirm: '删除会话?',
   confirm: '确认',
   cancel: '取消',
   options: '选项',
   rename: '重命名',
   copyPath: '复制路径',
-  archive: '归档',
+  copySessionId: '复制 Session ID ⧉',
+  copied: '已复制 ✓',
+  copyFailed: '复制失败',
+  archive: '删除',
   fork: '分叉会话',
   delete: '删除',
   removeWorkspace: '移除工作区',