feat(ai): add general action mode

apps/desktop/src/components/editor/AiAssistant.vue

@@ -52,7 +52,7 @@ import DatabaseIcon from "@/components/icons/DatabaseIcon.vue";
 import { useQueryStore } from "@/stores/queryStore";
 import { useToast } from "@/composables/useToast";
 import { useNavigationTargets } from "@/composables/useNavigationTargets";
-import { buildAiContext, runAgentStream, isVectorDbType, defaultActionForMode, isValidActionForMode, type AiAction, type AiAssistantMode, type AiSqlFileContext } from "@/lib/ai/ai";
+import { buildAiContext, runAgentStream, isVectorDbType, isValidActionForMode, defaultActionForMode, type AiAction, type AiAssistantMode, type AiSqlFileContext } from "@/lib/ai/ai";
 import { formatAiModelOption } from "@/lib/ai/aiModelPresentation";
 import type { AgentEvent } from "@/lib/backend/tauri";
 import { buildAiAgentPlan } from "@/lib/ai/aiAgentPlan";
@@ -132,7 +132,7 @@ const prompt = ref("");
 const messages = ref<ChatMessage[]>([]);
 const isGenerating = ref(false);
 const scrollRef = ref<InstanceType<typeof ScrollArea> | null>(null);
-const activeAction = ref<AiAction>("generate");
+const activeAction = ref<AiAction>("general");
 const assistantMode = ref<"ask" | "agent">("ask");
 const currentSessionId = ref("");
 const conversationId = ref("");
@@ -335,6 +335,16 @@ const selectedSqlFileMentions = ref<AiSqlFileMention[]>([]);
 let mentionTimer: ReturnType<typeof setTimeout> | undefined;
 let mentionRequestId = 0;
 
+// Slash command menu
+const commandOpen = ref(false);
+const commandSelectedIndex = ref(0);
+const commandStart = ref(0);
+
+const filteredCommands = computed(() => {
+  const query = prompt.value.slice(commandStart.value + 1).toLowerCase();
+  return actionButtons.value.filter((cmd) => cmd.action.toLowerCase().includes(query) || t(cmd.key).toLowerCase().includes(query));
+});
+
 const AI_SQL_FILE_MENTION_CANDIDATE_LIMIT = 50;
 const AI_SQL_FILE_CONTEXT_MAX_CHARS = 12_000;
 
@@ -347,6 +357,7 @@ interface AiActionButton {
 
 /** Ask-mode actions: SQL-producing, never auto-run. */
 const askActionButtons: AiActionButton[] = [
+  { action: "general", icon: MessageSquarePlus, key: "ai.actions.general" },
   { action: "generate", icon: Wand2, key: "ai.actions.generate" },
   { action: "explain", icon: HelpCircle, key: "ai.actions.explain" },
   { action: "optimize", icon: Zap, key: "ai.actions.optimize" },
@@ -357,6 +368,7 @@ const askActionButtons: AiActionButton[] = [
 
 /** Agent-mode actions: task-oriented, drive tool use and real results. */
 const agentActionButtons: AiActionButton[] = [
+  { action: "general", icon: MessageSquarePlus, key: "ai.actions.general" },
   { action: "query", icon: Search, key: "ai.actions.query" },
   { action: "exploreSchema", icon: Table2, key: "ai.actions.exploreSchema" },
   { action: "executeAndExplain", icon: Play, key: "ai.actions.executeAndExplain" },
@@ -366,18 +378,15 @@ const agentActionButtons: AiActionButton[] = [
 
 const actionButtons = computed<AiActionButton[]>(() => (assistantMode.value === "agent" ? agentActionButtons : askActionButtons));
 
-// Vector DBs hide the action menu and only expose collection tools (list_collections /
-// browse_collection), never SQL tools. Keep their action at `generate` so the task contract
-// doesn't tell the LLM to call execute_query / produce SQL — neither applies to vector stores.
+// Vector DBs hide the action menu and only expose collection tools.
+// Keep their action at `generate` so the task contract doesn't tell the LLM to call execute_query.
 function resolveDefaultAction(mode: AiAssistantMode): AiAction {
   if (props.connection && isVectorDbType(props.connection.db_type)) return "generate";
   return defaultActionForMode(mode);
 }
 
 // Switching mode is a deliberate context change: land on that mode's default action so the
-// menu and behavior match the new intent (Ask → generate, Agent → query). The shared
-// `generate` action is not carried across because its label/semantics differ per mode
-// ("生成 SQL" vs "生成但不执行").
+// menu and behavior match the new intent. The shared `general` action is the default.
 //
 // `triggerAction` may set the action itself after programmatically switching mode (e.g. "Fix
 // with AI" invoked from Agent mode); `suppressModeActionReset` tells this watch to skip the
@@ -391,6 +400,18 @@ watch(assistantMode, (mode) => {
   activeAction.value = resolveDefaultAction(mode);
 });
 
+watch(
+  () => props.connection?.db_type,
+  () => {
+    // Vector DBs hide the action picker, so keep the hidden action aligned with
+    // the collection-oriented prompt contract on initial render and connection changes.
+    if (props.connection && isVectorDbType(props.connection.db_type)) {
+      activeAction.value = "generate";
+    }
+  },
+  { immediate: true },
+);
+
 function selectAction(action: AiAction) {
   activeAction.value = action;
   if (action === "fix" && props.tab?.result) {
@@ -1137,6 +1158,23 @@ function scrollMentionSelectedIntoView() {
 
 function refreshMentionState() {
   clearTimeout(mentionTimer);
+
+  // 优先检测斜杠命令（仅在输入内容为空时触发）
+  const textarea = promptTextareaRef.value;
+  const cursor = textarea?.selectionStart ?? prompt.value.length;
+  const beforeCursor = prompt.value.slice(0, cursor);
+  const slashMatch = /^\/([^\s]*)$/.exec(beforeCursor.trimStart());
+
+  if (slashMatch) {
+    mentionOpen.value = false;
+    commandOpen.value = true;
+    commandStart.value = beforeCursor.length - slashMatch[1].length - 1;
+    commandSelectedIndex.value = 0;
+    return;
+  }
+
+  commandOpen.value = false;
+
   const mention = activeMentionAtCursor();
   if (!mention || !props.connection || !props.tab?.database) {
     mentionOpen.value = false;
@@ -1155,6 +1193,21 @@ function onPromptKeyup(event: KeyboardEvent) {
   refreshMentionState();
 }
 
+function selectCommand(command: AiActionButton) {
+  const before = prompt.value.slice(0, commandStart.value);
+  const after = prompt.value.slice(promptTextareaRef.value?.selectionStart ?? prompt.value.length);
+  prompt.value = `${before}${after}`.replace(/\s{2,}/g, " ").trim();
+  commandOpen.value = false;
+  activeAction.value = command.action;
+  nextTick(() => {
+    const textarea = promptTextareaRef.value;
+    if (textarea) {
+      textarea.selectionStart = textarea.selectionEnd = before.length;
+      textarea.focus();
+    }
+  });
+}
+
 function insertMention(candidate: AiMentionCandidate) {
   const textarea = promptTextareaRef.value;
   const cursor = textarea?.selectionStart ?? prompt.value.length;
@@ -1173,6 +1226,30 @@ function insertMention(candidate: AiMentionCandidate) {
 function onPromptKeydown(event: KeyboardEvent) {
   if (isAiPromptImeCompositionEvent(event, promptCompositionActive.value)) return;
 
+  // 斜杠命令菜单键盘导航
+  if (commandOpen.value) {
+    if (event.key === "ArrowDown") {
+      event.preventDefault();
+      commandSelectedIndex.value = Math.min(commandSelectedIndex.value + 1, filteredCommands.value.length - 1);
+      return;
+    }
+    if (event.key === "ArrowUp") {
+      event.preventDefault();
+      commandSelectedIndex.value = Math.max(commandSelectedIndex.value - 1, 0);
+      return;
+    }
+    if ((event.key === "Enter" || event.key === "Tab") && filteredCommands.value[commandSelectedIndex.value]) {
+      event.preventDefault();
+      selectCommand(filteredCommands.value[commandSelectedIndex.value]);
+      return;
+    }
+    if (event.key === "Escape") {
+      event.preventDefault();
+      commandOpen.value = false;
+      return;
+    }
+  }
+
   if (mentionOpen.value) {
     if (event.key === "ArrowDown") {
       event.preventDefault();
@@ -1304,7 +1381,7 @@ async function send() {
     await runAgentStream(
       {
         config: settings.aiConfig,
-        action: activeAction.value,
+        action: requestedAction,
         mode: requestedMode,
         instruction: modelInstruction,
         context,
@@ -1373,7 +1450,6 @@ async function send() {
       if (msg && requestedMode === "agent") msg.agentSteps = buildAiAgentStepItems(agentPlan);
       if (agentPlan.handoffSql) emit("requestAutoExecuteSql", agentPlan.handoffSql);
     }
-    activeAction.value = resolveDefaultAction(assistantMode.value);
     currentSessionId.value = "";
     // Apply deferred context compaction after streaming so assistantIdx stays stable.
     // Visible chat history is kept for the user; future LLM history starts from this hidden summary.
@@ -1910,6 +1986,23 @@ async function openExternalUrl(url: string) {
               </button>
             </div>
           </div>
+          <div v-if="commandOpen && filteredCommands.length" class="absolute bottom-full left-2 right-2 z-20 mb-1 max-h-56 overflow-hidden rounded-md border bg-popover text-popover-foreground shadow-md">
+            <div class="max-h-56 overflow-auto p-1">
+              <button
+                v-for="(cmd, index) in filteredCommands"
+                :key="cmd.action"
+                type="button"
+                class="flex w-full items-center gap-2 rounded px-2 py-1.5 text-left text-xs hover:bg-muted"
+                :class="{ 'bg-muted': index === commandSelectedIndex }"
+                @mousedown.prevent="selectCommand(cmd)"
+                @mouseenter="commandSelectedIndex = index"
+              >
+                <component :is="cmd.icon" class="h-3.5 w-3.5 shrink-0 text-muted-foreground" />
+                <span class="font-medium">/{{ cmd.action }}</span>
+                <span class="ml-auto text-[11px] text-muted-foreground">{{ t(cmd.key) }}</span>
+              </button>
+            </div>
+          </div>
           <div v-if="promptMentionChips.length" class="mb-1.5 flex flex-wrap gap-1">
             <button
               v-for="mention in promptMentionChips"

apps/desktop/src/i18n/locales/en.ts

@@ -1304,6 +1304,7 @@ export default {
     reasoningLevelHigh: "High",
     reasoningLevelHint: "Controls Codex CLI model_reasoning_effort. Default uses your Codex config.",
     actions: {
+      general: "General",
       generate: "Generate SQL",
       explain: "Explain SQL",
       optimize: "Optimize SQL",
@@ -1316,6 +1317,7 @@ export default {
       generateNoExec: "Generate (no run)",
     },
     placeholders: {
+      general: "Ask me anything...",
       generate: "Describe what you want to query, e.g. orders per user in the last 7 days",
       explain: "Optional: add what you want to understand",
       optimize: "Optional: add a goal, e.g. reduce full table scans",

apps/desktop/src/i18n/locales/es.ts

@@ -1250,6 +1250,7 @@ export default withEnglishFallback({
     codexCliPath: "Ruta de Codex CLI",
     codexCliPathHint: "Déjalo vacío para usar codex desde PATH. Inicia sesión por separado con codex login.",
     actions: {
+      general: "General",
       generate: "Generar SQL",
       explain: "Explicar SQL",
       optimize: "Optimizar SQL",
@@ -1262,6 +1263,7 @@ export default withEnglishFallback({
       generateNoExec: "Generar (sin ejecutar)",
     },
     placeholders: {
+      general: "Pregunta lo que quieras...",
       generate: "Describe lo que quieres consultar, p. ej. pedidos por usuario en los últimos 7 días",
       explain: "Opcional: indica qué quieres entender",
       optimize: "Opcional: indica un objetivo, p. ej. reducir los escaneos completos de tabla",

apps/desktop/src/i18n/locales/it.ts

@@ -1248,6 +1248,7 @@ export default withEnglishFallback({
     reasoningLevelHigh: "Alto",
     reasoningLevelHint: "Controlla model_reasoning_effort di Codex CLI. Predefinito usa la configurazione Codex.",
     actions: {
+      general: "Generale",
       generate: "Genera SQL",
       explain: "Spiega SQL",
       optimize: "Ottimizza SQL",
@@ -1260,6 +1261,7 @@ export default withEnglishFallback({
       generateNoExec: "Genera (senza eseguire)",
     },
     placeholders: {
+      general: "Chiedi qualsiasi cosa...",
       generate: "Descrivi cosa desideri interrogare, es. ordini per utente negli ultimi 7 giorni",
       explain: "Opzionale: aggiungi cosa desideri comprendere",
       optimize: "Opzionale: aggiungi un obiettivo, es. ridurre le scansioni complete della tabella",

apps/desktop/src/i18n/locales/ja.ts

@@ -1248,6 +1248,7 @@ export default withEnglishFallback({
     enableThinkingHint: "このオプションは/chat/completions APIとサポートされているモデルでのみ有効です。無効にするとトークン使用量を大幅に削減できますが、生成結果の品質が若干低下する可能性があります。",
     anthropicMessagesHint: "Anthropic Messages 互換 API は通常 /v1/messages を使用します。",
     actions: {
+      general: "一般的な質問",
       generate: "SQLを生成",
       explain: "SQLを説明",
       optimize: "SQLを最適化",
@@ -1260,6 +1261,7 @@ export default withEnglishFallback({
       generateNoExec: "生成のみ（実行しない）",
     },
     placeholders: {
+      general: "何でも聞いてください...",
       generate: "クエリしたい内容を説明してください（例: 過去7日間のユーザーごとの注文数）",
       explain: "任意: 理解したい内容を追加",
       optimize: "任意: 目標を追加（例: フルテーブルスキャンを減らす）",

apps/desktop/src/i18n/locales/pt-BR.ts

@@ -1249,6 +1249,7 @@ export default withEnglishFallback({
     enableThinkingOff: "Desativado",
     enableThinkingHint: "Esta opção só tem efeito em APIs /chat/completions e modelos compatíveis. Quando desativada, pode reduzir significativamente o uso de tokens, mas a qualidade dos resultados gerados pode diminuir ligeiramente.",
     actions: {
+      general: "Geral",
       generate: "Gerar SQL",
       explain: "Explicar SQL",
       optimize: "Otimizar SQL",
@@ -1261,6 +1262,7 @@ export default withEnglishFallback({
       generateNoExec: "Gerar (sem executar)",
     },
     placeholders: {
+      general: "Pergunte qualquer coisa...",
       generate: "Descreva o que você quer consultar, por exemplo, pedidos por usuário nos últimos 7 dias",
       explain: "Opcional: adicione o que você quer entender",
       optimize: "Opcional: adicione um objetivo, por exemplo, reduzir varreduras completas de tabela",

apps/desktop/src/i18n/locales/zh-CN.ts

@@ -1306,6 +1306,7 @@ export default withEnglishFallback({
     reasoningLevelHigh: "高",
     reasoningLevelHint: "控制 Codex CLI 的 model_reasoning_effort。默认使用你的 Codex 配置。",
     actions: {
+      general: "通用问答",
       generate: "生成 SQL",
       explain: "解释 SQL",
       optimize: "优化 SQL",
@@ -1318,6 +1319,7 @@ export default withEnglishFallback({
       generateNoExec: "生成但不执行",
     },
     placeholders: {
+      general: "问我任何问题...",
       generate: "描述你想查询什么，例如：统计最近 7 天每个用户的订单数",
       explain: "可留空，或补充你关心的点",
       optimize: "可留空，或说明优化目标，例如：减少全表扫描",

apps/desktop/src/i18n/locales/zh-TW.ts

@@ -1249,6 +1249,7 @@ export default withEnglishFallback({
     reasoningLevelHigh: "高",
     reasoningLevelHint: "控制 Codex CLI 的 model_reasoning_effort。預設會使用你的 Codex 設定。",
     actions: {
+      general: "通用問答",
       generate: "產生 SQL",
       explain: "解釋 SQL",
       optimize: "最佳化 SQL",
@@ -1261,6 +1262,7 @@ export default withEnglishFallback({
       generateNoExec: "產生但不執行",
     },
     placeholders: {
+      general: "問我任何問題...",
       generate: "描述你想查詢什麼，例如：統計最近 7 天每個使用者的訂單數",
       explain: "可留空，或補充你關心的點",
       optimize: "可留空，或說明最佳化目標，例如：減少全資料表掃描",

apps/desktop/src/lib/ai/__tests__/aiActions.spec.ts

@@ -3,13 +3,12 @@ import { ASK_ACTIONS, AGENT_ACTIONS, defaultActionForMode, isValidActionForMode
 
 describe("AI action mode mapping", () => {
   describe("defaultActionForMode", () => {
-    it("defaults Ask to generate", () => {
-      expect(defaultActionForMode("ask")).toBe("generate");
+    it("defaults Ask to general", () => {
+      expect(defaultActionForMode("ask")).toBe("general");
     });
 
-    it("defaults Agent to query (not generate)", () => {
-      // The whole point of the feature: Agent mode must not default to SQL generation.
-      expect(defaultActionForMode("agent")).toBe("query");
+    it("defaults Agent to general", () => {
+      expect(defaultActionForMode("agent")).toBe("general");
     });
   });
 
@@ -47,15 +46,15 @@ describe("AI action mode mapping", () => {
   });
 
   describe("action sets", () => {
-    it("Ask menu keeps the SQL-producing actions", () => {
-      expect(ASK_ACTIONS).toEqual(["generate", "explain", "optimize", "fix", "convert", "sampleData"]);
+    it("Ask menu starts with general, then SQL-producing actions", () => {
+      expect(ASK_ACTIONS).toEqual(["general", "generate", "explain", "optimize", "fix", "convert", "sampleData"]);
     });
 
-    it("Agent menu is task-oriented, starts with query, and still offers generate", () => {
-      expect(AGENT_ACTIONS[0]).toBe("query");
-      // generate is shared so users can still request SQL-only output ("生成但不执行").
+    it("Agent menu starts with general, then task-oriented actions", () => {
+      expect(AGENT_ACTIONS[0]).toBe("general");
+      // generate is shared so users can still request SQL-only output.
       expect(AGENT_ACTIONS).toContain("generate");
-      expect(AGENT_ACTIONS).toEqual(["query", "exploreSchema", "executeAndExplain", "generate"]);
+      expect(AGENT_ACTIONS).toEqual(["general", "query", "exploreSchema", "executeAndExplain", "generate"]);
     });
   });
 });

apps/desktop/src/lib/ai/ai.ts

@@ -32,20 +32,20 @@ function dbLabel(dbType: DatabaseType): string {
   return labels[dbType] || dbType;
 }
 
-export type AiAction = "generate" | "explain" | "optimize" | "fix" | "convert" | "sampleData" | "query" | "exploreSchema" | "executeAndExplain";
+export type AiAction = "general" | "generate" | "explain" | "optimize" | "fix" | "convert" | "sampleData" | "query" | "exploreSchema" | "executeAndExplain";
 export type AiAssistantMode = "ask" | "agent";
 
 /** Actions shown in the Ask mode menu: SQL-producing, never auto-run. */
-export const ASK_ACTIONS: AiAction[] = ["generate", "explain", "optimize", "fix", "convert", "sampleData"];
+export const ASK_ACTIONS: AiAction[] = ["general", "generate", "explain", "optimize", "fix", "convert", "sampleData"];
 
 /**
  * Actions shown in the Agent mode menu: task-oriented, drive tool use.
  * `generate` is shared with Ask so users can still request SQL-only output without execution.
  */
-export const AGENT_ACTIONS: AiAction[] = ["query", "exploreSchema", "executeAndExplain", "generate"];
+export const AGENT_ACTIONS: AiAction[] = ["general", "query", "exploreSchema", "executeAndExplain", "generate"];
 
-export function defaultActionForMode(mode: AiAssistantMode): AiAction {
-  return mode === "agent" ? "query" : "generate";
+export function defaultActionForMode(_mode: AiAssistantMode): AiAction {
+  return "general";
 }
 
 export function isValidActionForMode(action: AiAction, mode: AiAssistantMode): boolean {

apps/desktop/src/lib/ai/aiSkills.ts

@@ -25,6 +25,28 @@ export interface AiSkillDefinition {
 }
 
 export const AI_SKILL_DEFINITIONS: AiSkillDefinition[] = [
+  {
+    id: "general",
+    action: "general",
+    title: {
+      en: "General",
+      zh: "通用问答",
+    },
+    riskPolicy: "readonly",
+    contextNeeds: [],
+    userInstruction: {
+      en: "Answer the user's question directly and naturally. Use your general knowledge and the database schema context when relevant.",
+      zh: "直接、自然地回答用户的问题。使用你的通用知识，涉及数据库时可参考 Schema 上下文。",
+    },
+    systemRules: {
+      en: ["Answer naturally and helpfully. Adapt to the user's intent — whether that's a greeting, a conceptual question, or a database-related inquiry."],
+      zh: ["自然、有帮助地回答。根据用户意图灵活应对——无论是问候、概念性问题还是数据库相关咨询。"],
+    },
+    outputContract: {
+      en: ["Provide a clear, helpful answer adapted to the user's question."],
+      zh: ["根据用户问题提供清晰、有帮助的回答。"],
+    },
+  },
   {
     id: "generate_sql",
     action: "generate",