fix: apply host-level keyword highlight rules immediately after runtime creation

This fixes a timing issue where the useEffect for keyword highlighting
runs before the runtime is created, causing host-level rules to be missed
for fresh sessions. Now merged global and host rules are applied right
after the XTermRuntime is created in the boot() function.

application/i18n/locales/en.ts

@@ -871,6 +871,15 @@ const en: Messages = {
   'terminal.toolbar.focus': 'Focus',
   'terminal.toolbar.focusMode': 'Focus Mode',
   'terminal.toolbar.closeSession': 'Close session',
+  'terminal.toolbar.hostHighlight.title': 'Host Keyword Highlighting',
+  'terminal.toolbar.hostHighlight.noRules': 'No custom highlight rules defined for this host',
+  'terminal.toolbar.hostHighlight.addRule': 'Add New Rule',
+  'terminal.toolbar.hostHighlight.labelPlaceholder': 'Label (e.g., Error)',
+  'terminal.toolbar.hostHighlight.patternPlaceholder': 'Regex pattern (e.g., \\bfailed\\b)',
+  'terminal.toolbar.hostHighlight.invalidPattern': 'Invalid regex pattern',
+  'terminal.toolbar.hostHighlight.clearAll': 'Clear All',
+  'terminal.toolbar.hostHighlight.changeColor': 'Change highlight color for',
+  'terminal.toolbar.hostHighlight.selectColor': 'Select color for new rule',
   'terminal.serverStats.cpu': 'CPU Usage',
   'terminal.serverStats.cpuCores': 'CPU Core Usage',
   'terminal.serverStats.memory': 'Memory Usage',

application/i18n/locales/zh-CN.ts

@@ -557,6 +557,15 @@ const zhCN: Messages = {
   'terminal.toolbar.focus': '聚焦',
   'terminal.toolbar.focusMode': '聚焦模式',
   'terminal.toolbar.closeSession': '关闭会话',
+  'terminal.toolbar.hostHighlight.title': '主机关键字高亮',
+  'terminal.toolbar.hostHighlight.noRules': '此主机未定义自定义高亮规则',
+  'terminal.toolbar.hostHighlight.addRule': '添加新规则',
+  'terminal.toolbar.hostHighlight.labelPlaceholder': '标签（例如：错误）',
+  'terminal.toolbar.hostHighlight.patternPlaceholder': '正则表达式（例如：\\bfailed\\b）',
+  'terminal.toolbar.hostHighlight.invalidPattern': '无效的正则表达式',
+  'terminal.toolbar.hostHighlight.clearAll': '清除全部',
+  'terminal.toolbar.hostHighlight.changeColor': '更改高亮颜色',
+  'terminal.toolbar.hostHighlight.selectColor': '选择新规则的颜色',
   'terminal.serverStats.cpu': 'CPU 使用率',
   'terminal.serverStats.cpuCores': 'CPU 核心使用率',
   'terminal.serverStats.memory': '内存使用',

components/SftpView.tsx

@@ -14,7 +14,7 @@
  * - components/sftp/SftpHostPicker.tsx - Host selection dialog
  */
 
-import React, { memo, useCallback, useLayoutEffect, useMemo, useRef, useState } from "react";
+import React, { memo, useCallback, useLayoutEffect, useMemo, useRef } from "react";
 import { useI18n } from "../application/i18n/I18nProvider";
 import { useIsSftpActive } from "../application/state/activeTabStore";
 import { useSftpState } from "../application/state/useSftpState";

components/Terminal.tsx

@@ -216,12 +216,32 @@ const TerminalComponent: React.FC<TerminalProps> = ({
 
   useEffect(() => {
     if (xtermRuntimeRef.current) {
-      xtermRuntimeRef.current.keywordHighlighter.setRules(
-        terminalSettings?.keywordHighlightRules ?? [],
-        terminalSettings?.keywordHighlightEnabled ?? false
-      );
+      // Merge global rules with host-level rules
+      // Host-level rules are appended to global rules, allowing hosts to add custom highlighting
+      const globalRules = terminalSettings?.keywordHighlightRules ?? [];
+      const hostRules = host?.keywordHighlightRules ?? [];
+
+      // Check if highlighting is enabled at either global or host level
+      const globalEnabled = terminalSettings?.keywordHighlightEnabled ?? false;
+      const hostEnabled = host?.keywordHighlightEnabled ?? false;
+
+      // Merge rules: include only rules from enabled sources
+      const mergedRules = [
+        ...(globalEnabled ? globalRules : []),
+        ...(hostEnabled ? hostRules : [])
+      ];
+
+      // Enable highlighting if either global or host-level is enabled
+      const isEnabled = globalEnabled || hostEnabled;
+
+      xtermRuntimeRef.current.keywordHighlighter.setRules(mergedRules, isEnabled);
     }
-  }, [terminalSettings?.keywordHighlightEnabled, terminalSettings?.keywordHighlightRules]);
+  }, [
+    terminalSettings?.keywordHighlightEnabled,
+    terminalSettings?.keywordHighlightRules,
+    host?.keywordHighlightEnabled,
+    host?.keywordHighlightRules
+  ]);
 
   const hotkeySchemeRef = useRef(hotkeyScheme);
   const keyBindingsRef = useRef(keyBindings);
@@ -447,6 +467,20 @@ const TerminalComponent: React.FC<TerminalProps> = ({
         serializeAddonRef.current = runtime.serializeAddon;
         searchAddonRef.current = runtime.searchAddon;
 
+        // Apply merged keyword highlight rules immediately after runtime creation
+        // This fixes a timing issue where the useEffect for keyword highlighting
+        // runs before the runtime is created, causing host-level rules to be missed
+        const globalRules = terminalSettingsRef.current?.keywordHighlightRules ?? [];
+        const hostRules = host?.keywordHighlightRules ?? [];
+        const globalEnabled = terminalSettingsRef.current?.keywordHighlightEnabled ?? false;
+        const hostEnabled = host?.keywordHighlightEnabled ?? false;
+        const mergedRules = [
+          ...(globalEnabled ? globalRules : []),
+          ...(hostEnabled ? hostRules : [])
+        ];
+        const isEnabled = globalEnabled || hostEnabled;
+        runtime.keywordHighlighter.setRules(mergedRules, isEnabled);
+
         const term = runtime.term;
 
         if (host.protocol === "serial") {
@@ -996,7 +1030,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
 
     try {
       const dropEntries = await extractDropEntries(e.dataTransfer);
-      
+
       if (dropEntries.length === 0) {
         return;
       }
@@ -1087,7 +1121,7 @@ const TerminalComponent: React.FC<TerminalProps> = ({
       onSplitVertical={onSplitVertical}
       onClose={inWorkspace ? () => onCloseSession?.(sessionId) : undefined}
     >
-      <div 
+      <div
         className="relative h-full w-full flex overflow-hidden bg-gradient-to-br from-[#050910] via-[#06101a] to-[#0b1220]"
         onDragEnter={handleDragEnter}
         onDragOver={handleDragOver}
@@ -1100,13 +1134,13 @@ const TerminalComponent: React.FC<TerminalProps> = ({
             <div className="bg-background/90 backdrop-blur-md rounded-lg shadow-lg p-6 border border-border">
               <div className="text-center">
                 <div className="text-lg font-semibold mb-2">
-                  {isLocalConnection 
+                  {isLocalConnection
                     ? t("terminal.dragDrop.localTitle")
                     : t("terminal.dragDrop.remoteTitle")
                   }
                 </div>
                 <div className="text-sm text-muted-foreground">
-                  {isLocalConnection 
+                  {isLocalConnection
                     ? t("terminal.dragDrop.localMessage")
                     : t("terminal.dragDrop.remoteMessage")
                   }
@@ -1483,46 +1517,46 @@ const TerminalComponent: React.FC<TerminalProps> = ({
           {status !== "connected" && !needsHostKeyVerification && !(
             (isLocalConnection || isSerialConnection) && status === "connecting"
           ) && (
-            <TerminalConnectionDialog
-              host={host}
-              status={status}
-              error={error}
-              progressValue={progressValue}
-              chainProgress={chainProgress}
-              needsAuth={auth.needsAuth}
-              showLogs={showLogs}
-              _setShowLogs={setShowLogs}
-              keys={keys}
-              authProps={{
-                authMethod: auth.authMethod,
-                setAuthMethod: auth.setAuthMethod,
-                authUsername: auth.authUsername,
-                setAuthUsername: auth.setAuthUsername,
-                authPassword: auth.authPassword,
-                setAuthPassword: auth.setAuthPassword,
-                authKeyId: auth.authKeyId,
-                setAuthKeyId: auth.setAuthKeyId,
-                authPassphrase: auth.authPassphrase,
-                setAuthPassphrase: auth.setAuthPassphrase,
-                showAuthPassphrase: auth.showAuthPassphrase,
-                setShowAuthPassphrase: auth.setShowAuthPassphrase,
-                showAuthPassword: auth.showAuthPassword,
-                setShowAuthPassword: auth.setShowAuthPassword,
-                authRetryMessage: auth.authRetryMessage,
-                onSubmit: () => auth.submit(),
-                onSubmitWithoutSave: () => auth.submit({ saveToHost: false }),
-                onCancel: handleCancelConnect,
-                isValid: auth.isValid,
-              }}
-              progressProps={{
-                timeLeft,
-                isCancelling,
-                progressLogs,
-                onCancel: handleCancelConnect,
-                onRetry: handleRetry,
-              }}
-            />
-          )}
+              <TerminalConnectionDialog
+                host={host}
+                status={status}
+                error={error}
+                progressValue={progressValue}
+                chainProgress={chainProgress}
+                needsAuth={auth.needsAuth}
+                showLogs={showLogs}
+                _setShowLogs={setShowLogs}
+                keys={keys}
+                authProps={{
+                  authMethod: auth.authMethod,
+                  setAuthMethod: auth.setAuthMethod,
+                  authUsername: auth.authUsername,
+                  setAuthUsername: auth.setAuthUsername,
+                  authPassword: auth.authPassword,
+                  setAuthPassword: auth.setAuthPassword,
+                  authKeyId: auth.authKeyId,
+                  setAuthKeyId: auth.setAuthKeyId,
+                  authPassphrase: auth.authPassphrase,
+                  setAuthPassphrase: auth.setAuthPassphrase,
+                  showAuthPassphrase: auth.showAuthPassphrase,
+                  setShowAuthPassphrase: auth.setShowAuthPassphrase,
+                  showAuthPassword: auth.showAuthPassword,
+                  setShowAuthPassword: auth.setShowAuthPassword,
+                  authRetryMessage: auth.authRetryMessage,
+                  onSubmit: () => auth.submit(),
+                  onSubmitWithoutSave: () => auth.submit({ saveToHost: false }),
+                  onCancel: handleCancelConnect,
+                  isValid: auth.isValid,
+                }}
+                progressProps={{
+                  timeLeft,
+                  isCancelling,
+                  progressLogs,
+                  onCancel: handleCancelConnect,
+                  onRetry: handleRetry,
+                }}
+              />
+            )}
         </div>
 
         <SFTPModal

components/sftp/hooks/useSftpDialogAction.ts

@@ -5,7 +5,7 @@
  * This store allows keyboard shortcuts to trigger dialogs in the appropriate pane.
  */
 
-import { useSyncExternalStore, useCallback, useEffect } from "react";
+import { useSyncExternalStore, useEffect } from "react";
 import { sftpFocusStore, SftpFocusedSide } from "./useSftpFocusedPane";
 
 export type SftpDialogActionType = "rename" | "delete" | "newFolder" | "newFile" | null;

components/sftp/hooks/useSftpKeyboardShortcuts.ts

@@ -224,7 +224,7 @@ export const useSftpKeyboardShortcuts = ({
                 sourceConnectionId: clipboard.sourceConnectionId,
                 onTransferComplete: handleTransferComplete,
               });
-            } catch (error) {
+            } catch {
               toast.error("Paste failed. Please try again.", "SFTP");
             }
           } else {

components/terminal/HostKeywordHighlightPopover.tsx

@@ -0,0 +1,295 @@
+/**
+ * Host Keyword Highlight Popover
+ * Allows users to manage host-specific keyword highlighting rules in the terminal statusbar
+ */
+import { Highlighter, Plus, Trash2, RotateCcw } from 'lucide-react';
+import React, { useState, useCallback, useMemo } from 'react';
+import { v4 as uuidv4 } from 'uuid';
+import { useI18n } from '../../application/i18n/I18nProvider';
+import { Host, KeywordHighlightRule } from '../../types';
+import { Button } from '../ui/button';
+import { Input } from '../ui/input';
+import { Popover, PopoverContent, PopoverTrigger } from '../ui/popover';
+import { ScrollArea } from '../ui/scroll-area';
+
+export interface HostKeywordHighlightPopoverProps {
+  host?: Host;
+  onUpdateHost?: (host: Host) => void;
+  isOpen: boolean;
+  setIsOpen: (open: boolean) => void;
+  buttonClassName?: string;
+}
+
+const DEFAULT_NEW_RULE_COLOR = '#F87171';
+
+export const HostKeywordHighlightPopover: React.FC<HostKeywordHighlightPopoverProps> = ({
+  host,
+  onUpdateHost,
+  isOpen,
+  setIsOpen,
+  buttonClassName = '',
+}) => {
+  const { t } = useI18n();
+  const [newRuleLabel, setNewRuleLabel] = useState('');
+  const [newRulePattern, setNewRulePattern] = useState('');
+  const [newRuleColor, setNewRuleColor] = useState(DEFAULT_NEW_RULE_COLOR);
+  const [patternError, setPatternError] = useState<string | null>(null);
+
+  const rules = useMemo(() => host?.keywordHighlightRules ?? [], [host?.keywordHighlightRules]);
+  const enabled = host?.keywordHighlightEnabled ?? false;
+
+  const updateRules = useCallback((newRules: KeywordHighlightRule[]) => {
+    if (!host || !onUpdateHost) return;
+    onUpdateHost({ ...host, keywordHighlightRules: newRules });
+  }, [host, onUpdateHost]);
+
+  const toggleEnabled = useCallback(() => {
+    if (!host || !onUpdateHost) return;
+    onUpdateHost({ ...host, keywordHighlightEnabled: !enabled });
+  }, [host, onUpdateHost, enabled]);
+
+  const validatePattern = (pattern: string): boolean => {
+    try {
+      new RegExp(pattern, 'gi');
+      return true;
+    } catch {
+      return false;
+    }
+  };
+
+  const handleAddRule = useCallback(() => {
+    if (!newRuleLabel.trim() || !newRulePattern.trim()) {
+      return;
+    }
+
+    if (!validatePattern(newRulePattern)) {
+      setPatternError(t('terminal.toolbar.hostHighlight.invalidPattern'));
+      return;
+    }
+
+    const newRule: KeywordHighlightRule = {
+      id: uuidv4(),
+      label: newRuleLabel.trim(),
+      patterns: [newRulePattern.trim()],
+      color: newRuleColor,
+      enabled: true,
+    };
+
+    updateRules([...rules, newRule]);
+
+    // Reset form
+    setNewRuleLabel('');
+    setNewRulePattern('');
+    setNewRuleColor(DEFAULT_NEW_RULE_COLOR);
+    setPatternError(null);
+
+    // Auto-enable if adding the first rule and not enabled
+    if (rules.length === 0 && !enabled && host && onUpdateHost) {
+      onUpdateHost({ ...host, keywordHighlightRules: [newRule], keywordHighlightEnabled: true });
+    }
+  }, [newRuleLabel, newRulePattern, newRuleColor, rules, updateRules, enabled, host, onUpdateHost, t]);
+
+  const handleDeleteRule = useCallback((ruleId: string) => {
+    updateRules(rules.filter((r) => r.id !== ruleId));
+  }, [rules, updateRules]);
+
+  const handleColorChange = useCallback((ruleId: string, color: string) => {
+    updateRules(rules.map((r) => (r.id === ruleId ? { ...r, color } : r)));
+  }, [rules, updateRules]);
+
+  const handleToggleRule = useCallback((ruleId: string) => {
+    updateRules(rules.map((r) => (r.id === ruleId ? { ...r, enabled: !r.enabled } : r)));
+  }, [rules, updateRules]);
+
+  const handleClearAll = useCallback(() => {
+    if (!host || !onUpdateHost) return;
+    onUpdateHost({ ...host, keywordHighlightRules: [], keywordHighlightEnabled: false });
+  }, [host, onUpdateHost]);
+
+  const handlePatternChange = (value: string) => {
+    setNewRulePattern(value);
+    if (patternError && validatePattern(value)) {
+      setPatternError(null);
+    }
+  };
+
+  // Disable if no host (local/serial terminal sessions)
+  const isLocalTerminal = host?.protocol === 'local' || host?.id?.startsWith('local-');
+  const isSerialTerminal = host?.protocol === 'serial' || host?.id?.startsWith('serial-');
+  const isDisabled = !host || !onUpdateHost || isLocalTerminal || isSerialTerminal;
+
+  return (
+    <Popover open={isOpen} onOpenChange={setIsOpen}>
+      <PopoverTrigger asChild>
+        <Button
+          variant="secondary"
+          size="icon"
+          className={buttonClassName}
+          title={t('terminal.toolbar.hostHighlight.title')}
+          aria-label={t('terminal.toolbar.hostHighlight.title')}
+          disabled={isDisabled}
+        >
+          <Highlighter size={12} />
+        </Button>
+      </PopoverTrigger>
+      <PopoverContent className="w-80 p-0" align="start" side="top">
+        <div className="px-3 py-2 border-b bg-muted/30 flex items-center justify-between">
+          <span className="text-xs font-semibold uppercase text-muted-foreground">
+            {t('terminal.toolbar.hostHighlight.title')}
+          </span>
+          <label className="flex items-center gap-2 cursor-pointer">
+            <span className="text-xs text-muted-foreground">
+              {enabled ? t('common.enabled') : t('common.disabled')}
+            </span>
+            <button
+              type="button"
+              role="switch"
+              aria-checked={enabled}
+              onClick={toggleEnabled}
+              className={`
+                relative inline-flex h-5 w-9 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent 
+                transition-colors duration-200 ease-in-out focus:outline-none focus:ring-2 focus:ring-primary focus:ring-offset-2
+                ${enabled ? 'bg-primary' : 'bg-muted-foreground/30'}
+              `}
+            >
+              <span
+                className={`
+                  pointer-events-none inline-block h-4 w-4 transform rounded-full bg-white shadow ring-0 
+                  transition duration-200 ease-in-out
+                  ${enabled ? 'translate-x-4' : 'translate-x-0'}
+                `}
+              />
+            </button>
+          </label>
+        </div>
+
+        <ScrollArea className="max-h-64">
+          <div className="p-2 space-y-1.5">
+            {rules.length === 0 ? (
+              <div className="px-2 py-4 text-xs text-muted-foreground text-center italic">
+                {t('terminal.toolbar.hostHighlight.noRules')}
+              </div>
+            ) : (
+              rules.map((rule) => (
+                <div
+                  key={rule.id}
+                  className="flex items-center gap-2 px-2 py-1.5 rounded-md hover:bg-accent/50 group"
+                >
+                  <button
+                    type="button"
+                    onClick={() => handleToggleRule(rule.id)}
+                    className={`
+                      flex-shrink-0 w-3 h-3 rounded-sm border transition-colors
+                      ${rule.enabled 
+                        ? 'bg-primary border-primary' 
+                        : 'bg-transparent border-muted-foreground/50'
+                      }
+                    `}
+                    title={rule.enabled ? t('common.enabled') : t('common.disabled')}
+                  />
+                  <div className="flex-1 min-w-0">
+                    <div 
+                      className="text-xs font-medium truncate" 
+                      style={{ color: rule.enabled ? rule.color : 'inherit' }}
+                    >
+                      {rule.label}
+                    </div>
+                    <div className="text-[10px] text-muted-foreground font-mono truncate">
+                      {rule.patterns.join(', ')}
+                    </div>
+                  </div>
+                  <label className="relative flex-shrink-0">
+                    <input
+                      type="color"
+                      value={rule.color}
+                      onChange={(e) => handleColorChange(rule.id, e.target.value)}
+                      className="sr-only"
+                      aria-label={`${t('terminal.toolbar.hostHighlight.changeColor')} ${rule.label}`}
+                    />
+                    <span
+                      className="block w-6 h-4 rounded cursor-pointer border border-border/50 hover:border-border"
+                      style={{ backgroundColor: rule.color }}
+                    />
+                  </label>
+                  <Button
+                    variant="ghost"
+                    size="icon"
+                    className="h-5 w-5 opacity-0 group-hover:opacity-100 transition-opacity text-destructive hover:text-destructive hover:bg-destructive/10"
+                    onClick={() => handleDeleteRule(rule.id)}
+                  >
+                    <Trash2 size={10} />
+                  </Button>
+                </div>
+              ))
+            )}
+          </div>
+        </ScrollArea>
+
+        {/* Add new rule form */}
+        <div className="p-2 border-t bg-muted/20 space-y-2">
+          <div className="text-xs font-medium text-muted-foreground mb-1">
+            {t('terminal.toolbar.hostHighlight.addRule')}
+          </div>
+          <div className="flex gap-1.5">
+            <Input
+              placeholder={t('terminal.toolbar.hostHighlight.labelPlaceholder')}
+              value={newRuleLabel}
+              onChange={(e) => setNewRuleLabel(e.target.value)}
+              className="h-7 text-xs flex-1"
+            />
+            <label className="relative flex-shrink-0">
+              <input
+                type="color"
+                value={newRuleColor}
+                onChange={(e) => setNewRuleColor(e.target.value)}
+                className="sr-only"
+                aria-label={t('terminal.toolbar.hostHighlight.selectColor')}
+              />
+              <span
+                className="block w-7 h-7 rounded cursor-pointer border border-border/50 hover:border-border"
+                style={{ backgroundColor: newRuleColor }}
+              />
+            </label>
+          </div>
+          <div className="flex gap-1.5">
+            <Input
+              placeholder={t('terminal.toolbar.hostHighlight.patternPlaceholder')}
+              value={newRulePattern}
+              onChange={(e) => handlePatternChange(e.target.value)}
+              className={`h-7 text-xs font-mono flex-1 ${patternError ? 'border-destructive' : ''}`}
+            />
+            <Button
+              variant="secondary"
+              size="icon"
+              className="h-7 w-7 flex-shrink-0"
+              onClick={handleAddRule}
+              disabled={!newRuleLabel.trim() || !newRulePattern.trim()}
+            >
+              <Plus size={12} />
+            </Button>
+          </div>
+          {patternError && (
+            <div className="text-[10px] text-destructive">{patternError}</div>
+          )}
+        </div>
+
+        {/* Footer actions */}
+        {rules.length > 0 && (
+          <div className="p-2 border-t flex justify-end">
+            <Button
+              variant="ghost"
+              size="sm"
+              className="h-6 text-xs text-muted-foreground hover:text-destructive"
+              onClick={handleClearAll}
+            >
+              <RotateCcw size={10} className="mr-1" />
+              {t('terminal.toolbar.hostHighlight.clearAll')}
+            </Button>
+          </div>
+        )}
+      </PopoverContent>
+    </Popover>
+  );
+};
+
+export default HostKeywordHighlightPopover;

components/terminal/TerminalToolbar.tsx

@@ -1,6 +1,6 @@
 /**
  * Terminal Toolbar
- * Displays SFTP, Scripts, Theme, Search buttons and close button in terminal status bar
+ * Displays SFTP, Scripts, Theme, Highlight, Search buttons and close button in terminal status bar
  */
 import { FolderInput, X, Zap, Palette, Search } from 'lucide-react';
 import React, { useState } from 'react';
@@ -10,6 +10,7 @@ import { Button } from '../ui/button';
 import { Popover, PopoverContent, PopoverTrigger } from '../ui/popover';
 import { ScrollArea } from '../ui/scroll-area';
 import ThemeCustomizeModal from './ThemeCustomizeModal';
+import HostKeywordHighlightPopover from './HostKeywordHighlightPopover';
 
 export interface TerminalToolbarProps {
     status: 'connecting' | 'connected' | 'disconnected';
@@ -55,6 +56,7 @@ export const TerminalToolbar: React.FC<TerminalToolbarProps> = ({
 }) => {
     const { t } = useI18n();
     const [themeModalOpen, setThemeModalOpen] = useState(false);
+    const [highlightPopoverOpen, setHighlightPopoverOpen] = useState(false);
     const buttonBase = "h-6 w-6 p-0 shadow-none border-none text-[color:var(--terminal-toolbar-fg)] bg-transparent hover:bg-transparent";
 
     const isLocalTerminal = host?.protocol === 'local' || host?.id?.startsWith('local-');
@@ -163,6 +165,14 @@ export const TerminalToolbar: React.FC<TerminalToolbarProps> = ({
                 <Palette size={12} />
             </Button>
 
+            <HostKeywordHighlightPopover
+                host={host}
+                onUpdateHost={onUpdateHost}
+                isOpen={highlightPopoverOpen}
+                setIsOpen={setHighlightPopoverOpen}
+                buttonClassName={buttonBase}
+            />
+
             <Button
                 variant="secondary"
                 size="icon"

components/terminal/index.ts

@@ -12,6 +12,9 @@ export type { TerminalConnectionProgressProps } from './TerminalConnectionProgre
 export { TerminalToolbar } from './TerminalToolbar';
 export type { TerminalToolbarProps } from './TerminalToolbar';
 
+export { HostKeywordHighlightPopover } from './HostKeywordHighlightPopover';
+export type { HostKeywordHighlightPopoverProps } from './HostKeywordHighlightPopover';
+
 export { TerminalConnectionDialog } from './TerminalConnectionDialog';
 export type { ChainProgress,TerminalConnectionDialogProps } from './TerminalConnectionDialog';
 

domain/models.ts

@@ -96,6 +96,9 @@ export interface Host {
   sftpEncoding?: SftpFilenameEncoding; // Filename encoding for SFTP operations
   // Managed source: if this host is managed by an external file (e.g., ~/.ssh/config)
   managedSourceId?: string; // Reference to ManagedSource.id
+  // Host-level keyword highlighting (overrides/extends global settings)
+  keywordHighlightRules?: KeywordHighlightRule[];
+  keywordHighlightEnabled?: boolean;
 }
 
 export type KeyType = 'RSA' | 'ECDSA' | 'ED25519';

electron/bridges/sftpBridge.cjs

@@ -311,7 +311,6 @@ async function connectThroughChainForSftp(event, options, jumpHosts, targetHost,
           // Prioritize fastest ciphers (GCM modes are hardware-accelerated)
           cipher: [
             'aes128-gcm@openssh.com', 'aes256-gcm@openssh.com',
-            'chacha20-poly1305@openssh.com',
             'aes128-ctr', 'aes192-ctr', 'aes256-ctr',
           ],
           // Prioritize modern key exchange algorithms for broad compatibility

package-lock.json

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