feat: 用户交互卡片

.ai-project/state.yaml

@@ -35,10 +35,10 @@
     状态: "已完成"
   - 编号: "F-004"
     名称: "用户交互卡片"
-    状态: "进行中"
+    状态: "已完成"
   - 编号: "F-005"
     名称: "停止、失败与重试"
-    状态: "待开始"
+    状态: "进行中"
   - 编号: "F-006"
     名称: "附件、文件列表、读取与搜索"
     状态: "待开始"

apps/web-server/src/composition/create-app.ts

@@ -8,10 +8,12 @@ import type {
   AgentRunService,
   ConversationService,
   ProjectService,
+  InteractionService,
 } from "@great-agent/agent-core";
 import type { RunRegistry } from "./run-registry";
 import { createRunRoutes } from "../routes/runs";
 import { createProjectRoutes } from "../routes/projects";
+import { createInteractionRoutes } from "../routes/interactions";
 
 export function createApp(
   logger: Logger,
@@ -19,6 +21,7 @@ export function createApp(
   runs?: AgentRunService,
   runRegistry?: RunRegistry,
   projects?: ProjectService,
+  interactions?: InteractionService,
 ): Hono {
   const app = new Hono();
   app.use("*", requestId);
@@ -29,5 +32,7 @@ export function createApp(
     app.route("/api", createRunRoutes(runs, runRegistry));
   if (projects && conversations)
     app.route("/api", createProjectRoutes(projects, conversations));
+  if (interactions && runs && runRegistry)
+    app.route("/api", createInteractionRoutes(interactions, runs, runRegistry));
   return app;
 }

apps/web-server/src/composition/run-registry.ts

@@ -6,6 +6,7 @@ export class RunRegistry {
   private readonly history = new Map<string, RunEvent[]>();
   private readonly listeners = new Map<string, Set<Listener>>();
   private readonly finished = new Set<string>();
+  private readonly paused = new Set<string>();
 
   async publish(event: RunEvent): Promise<void> {
     const events = this.history.get(event.runId) ?? [];
@@ -13,6 +14,13 @@ export class RunRegistry {
     this.history.set(event.runId, events);
     if (event.type === "run.completed" || event.type === "run.failed")
       this.finished.add(event.runId);
+    if (event.type === "run.cancelled") this.finished.add(event.runId);
+    if (event.type === "interaction.requested") this.paused.add(event.runId);
+    if (
+      event.type === "interaction.resolved" ||
+      event.type === "interaction.cancelled"
+    )
+      this.paused.delete(event.runId);
     await Promise.all(
       [...(this.listeners.get(event.runId) ?? [])].map((listener) =>
         listener(event),
@@ -26,6 +34,9 @@ export class RunRegistry {
   isFinished(runId: string): boolean {
     return this.finished.has(runId);
   }
+  isPaused(runId: string): boolean {
+    return this.paused.has(runId);
+  }
 
   subscribe(runId: string, listener: Listener): () => void {
     const values = this.listeners.get(runId) ?? new Set<Listener>();

apps/web-server/src/http/error-handler.ts

@@ -21,9 +21,12 @@ export function createErrorHandler(logger: Logger): ErrorHandler {
     if (error instanceof CoreError) {
       const status =
         error.code === "CONVERSATION_NOT_FOUND" ||
-        error.code === "PROJECT_NOT_FOUND"
+        error.code === "PROJECT_NOT_FOUND" ||
+        error.code === "RUN_NOT_FOUND" ||
+        error.code === "INTERACTION_NOT_FOUND"
           ? 404
-          : error.code === "PROJECT_RUN_ACTIVE"
+          : error.code === "PROJECT_RUN_ACTIVE" ||
+              error.code === "INTERACTION_ALREADY_RESOLVED"
             ? 409
             : 400;
       return context.json(

apps/web-server/src/index.ts

@@ -3,6 +3,7 @@ import {
   FileConversationRepository,
   FileRunRepository,
   FileProjectRepository,
+  FileInteractionRepository,
   createDataLayout,
   ensureDataLayout,
 } from "@great-agent/local-data";
@@ -10,6 +11,7 @@ import {
   AgentRunService,
   ConversationService,
   ProjectService,
+  InteractionService,
   CoreError,
   type ModelPort,
 } from "@great-agent/agent-core";
@@ -30,6 +32,7 @@ const clock = { now: () => new Date() };
 const ids = { create: () => crypto.randomUUID() };
 const conversationRepository = new FileConversationRepository(layout);
 const runRepository = new FileRunRepository(layout);
+const interactionRepository = new FileInteractionRepository(layout);
 const conversations = new ConversationService({
   conversations: conversationRepository,
   clock,
@@ -43,6 +46,11 @@ const projects = new ProjectService({
   clock,
   ids,
 });
+const interactions = new InteractionService({
+  interactions: interactionRepository,
+  clock,
+  ids,
+});
 const model: ModelPort = environment.deepSeekApiKey
   ? new DeepSeekModelAdapter({
       apiKey: environment.deepSeekApiKey,
@@ -65,8 +73,16 @@ const runs = new AgentRunService(
   clock,
   ids,
   projects,
+  interactions,
+);
+const app = createApp(
+  logger,
+  conversations,
+  runs,
+  new RunRegistry(),
+  projects,
+  interactions,
 );
-const app = createApp(logger, conversations, runs, new RunRegistry(), projects);
 mountStaticWeb(app, resolve(import.meta.dir, "../../web/dist"));
 
 logger.info(

apps/web-server/src/routes/interactions.ts

@@ -0,0 +1,47 @@
+import { Hono } from "hono";
+import type {
+  AgentRunService,
+  InteractionService,
+} from "@great-agent/agent-core";
+import { interactionAnswerSchema } from "@great-agent/web-contracts";
+import type { RunRegistry } from "../composition/run-registry";
+import { consume } from "./runs";
+
+export function createInteractionRoutes(
+  interactions: InteractionService,
+  runs: AgentRunService,
+  registry: RunRegistry,
+): Hono {
+  const routes = new Hono();
+  routes.get("/conversations/:conversationId/interactions", async (context) =>
+    context.json(
+      await interactions.listByConversation(
+        context.req.param("conversationId"),
+      ),
+    ),
+  );
+  routes.get("/interactions/:id", async (context) =>
+    context.json(await interactions.get(context.req.param("id"))),
+  );
+  routes.post("/interactions/:id/response", async (context) => {
+    const answer = interactionAnswerSchema.parse(await context.req.json());
+    const current = await interactions.get(context.req.param("id"));
+    const resumeFromSequence = await runs.lastSequence(current.runId);
+    const resolved = await interactions.resolve(current.id, answer);
+    const run = await runs.getRun(current.runId);
+    const shouldResume = resolved.changed || run.status === "waiting_user";
+    if (shouldResume) {
+      const started = await runs.resume(
+        resolved.interaction,
+        new AbortController().signal,
+      );
+      void consume(started.events, registry);
+    }
+    return context.json({
+      interaction: resolved.interaction,
+      resumed: shouldResume,
+      resumeFromSequence,
+    });
+  });
+  return routes;
+}

apps/web-server/src/routes/runs.test.ts

@@ -12,6 +12,7 @@ import {
   AgentRunService,
   ConversationService,
   type ProjectService,
+  type InteractionService,
 } from "@great-agent/agent-core";
 import { createApp } from "../composition/create-app";
 import { RunRegistry } from "../composition/run-registry";
@@ -21,6 +22,7 @@ const projects = {
     throw new Error("unused");
   },
 } as unknown as ProjectService;
+const interactions = {} as InteractionService;
 
 class Conversations implements ConversationRepository {
   value: Conversation | null = null;
@@ -92,6 +94,7 @@ describe("Run HTTP 与 SSE", () => {
       { now: () => new Date("2026-08-12T00:00:00.000Z") },
       { create: () => `id_${++id}` },
       projects,
+      interactions,
     );
     const app = createApp(
       pino({ enabled: false }),

apps/web-server/src/routes/runs.ts

@@ -23,12 +23,20 @@ export function createRunRoutes(
       202,
     );
   });
+  routes.post("/runs/:runId/cancel", async (context) => {
+    const events = await service.cancelWaiting(context.req.param("runId"));
+    for (const event of events) await registry.publish(event);
+    return context.json({
+      runId: context.req.param("runId"),
+      status: "cancelled" as const,
+    });
+  });
   routes.get("/runs/:runId/events", (context) =>
     streamSSE(context, async (stream) => {
       const runId = context.req.param("runId");
       for (const event of registry.events(runId))
         await writeEvent(stream, event);
-      if (registry.isFinished(runId)) {
+      if (registry.isFinished(runId) || registry.isPaused(runId)) {
         // EventSource needs the terminal event to reach the browser before the
         // server closes a replay-only stream.
         await stream.sleep(100);
@@ -37,7 +45,12 @@ export function createRunRoutes(
       await new Promise<void>((resolve) => {
         const unsubscribe = registry.subscribe(runId, async (event) => {
           await writeEvent(stream, event);
-          if (event.type === "run.completed" || event.type === "run.failed") {
+          if (
+            event.type === "run.completed" ||
+            event.type === "run.failed" ||
+            event.type === "run.cancelled" ||
+            event.type === "interaction.requested"
+          ) {
             unsubscribe();
             resolve();
           }
@@ -52,7 +65,7 @@ export function createRunRoutes(
   return routes;
 }
 
-async function consume(
+export async function consume(
   events: AsyncIterable<RunEvent>,
   registry: RunRegistry,
 ): Promise<void> {

apps/web/src/api/interactions.ts

@@ -0,0 +1,38 @@
+import {
+  interactionSchema,
+  resolvedInteractionSchema,
+  type InteractionAnswerRequest,
+  type InteractionResponse,
+  type ResolvedInteractionResponse,
+} from "@great-agent/web-contracts";
+import { request } from "./request";
+
+export async function listInteractions(
+  conversationId: string,
+): Promise<InteractionResponse[]> {
+  return interactionSchema
+    .array()
+    .parse(
+      await request(
+        `/api/conversations/${encodeURIComponent(conversationId)}/interactions`,
+      ),
+    );
+}
+
+export async function answerInteraction(
+  id: string,
+  answer: InteractionAnswerRequest,
+): Promise<ResolvedInteractionResponse> {
+  return resolvedInteractionSchema.parse(
+    await request(`/api/interactions/${encodeURIComponent(id)}/response`, {
+      method: "POST",
+      body: JSON.stringify(answer),
+    }),
+  );
+}
+
+export async function cancelWaitingRun(runId: string): Promise<void> {
+  await request(`/api/runs/${encodeURIComponent(runId)}/cancel`, {
+    method: "POST",
+  });
+}

apps/web/src/api/runs.ts

@@ -26,6 +26,7 @@ export async function startRun(
 export async function streamRun(
   runId: string,
   onEvent: (event: RunEventResponse) => void,
+  afterSequence = 0,
 ): Promise<void> {
   const response = await fetch(
     `/api/runs/${encodeURIComponent(runId)}/events`,
@@ -49,8 +50,11 @@ export async function streamRun(
         .join("\n");
       if (!data) continue;
       const event = runEventSchema.parse(JSON.parse(data));
+      if (event.sequence <= afterSequence) continue;
       onEvent(event);
       if (event.type === "run.completed") return;
+      if (event.type === "interaction.requested") return;
+      if (event.type === "run.cancelled") return;
       if (event.type === "run.failed")
         throw new Error(readPayloadMessage(event.payload));
     }

apps/web/src/app/app-controller.ts

@@ -3,6 +3,8 @@ import type {
   ConversationResponse,
   ConversationSummaryResponse,
   ProjectResponse,
+  InteractionAnswerRequest,
+  InteractionResponse,
 } from "@great-agent/web-contracts";
 import {
   getConversation,
@@ -16,6 +18,11 @@ import {
   renameProject,
 } from "../api/projects";
 import { startRun, streamRun } from "../api/runs";
+import {
+  answerInteraction as submitInteractionAnswer,
+  cancelWaitingRun,
+  listInteractions,
+} from "../api/interactions";
 
 export type Selection =
   | { kind: "none" }
@@ -32,6 +39,7 @@ export type AppController = Readonly<{
   projects: State<ProjectResponse[]>;
   projectConversations: State<Record<string, ConversationSummaryResponse[]>>;
   active: State<ConversationResponse | null>;
+  interactions: State<InteractionResponse[]>;
   loading: State<boolean>;
   sending: State<boolean>;
   assistantDraft: State<string>;
@@ -48,6 +56,11 @@ export type AppController = Readonly<{
   deleteProject(id: string): Promise<void>;
   openConversation(id: string): Promise<void>;
   send(content: string): Promise<void>;
+  answerInteraction(
+    id: string,
+    answer: InteractionAnswerRequest,
+  ): Promise<void>;
+  cancelInteraction(runId: string): Promise<void>;
 }>;
 
 export function createAppController(): AppController {
@@ -58,6 +71,7 @@ export function createAppController(): AppController {
     Record<string, ConversationSummaryResponse[]>
   >({});
   const active = van.state<ConversationResponse | null>(null);
+  const interactions = van.state<InteractionResponse[]>([]);
   const loading = van.state(false);
   const sending = van.state(false);
   const assistantDraft = van.state("");
@@ -81,6 +95,7 @@ export function createAppController(): AppController {
   function select(next: Selection) {
     selection.val = next;
     active.val = null;
+    interactions.val = [];
     error.val = "";
   }
   function startNewTask() {
@@ -147,6 +162,7 @@ export function createAppController(): AppController {
   async function openConversation(id: string) {
     await perform(async () => {
       active.val = await getConversation(id);
+      interactions.val = await listInteractions(id);
       selection.val = { kind: "conversation", id };
     });
   }
@@ -176,15 +192,8 @@ export function createAppController(): AppController {
       active.val = await getConversation(started.conversationId);
       selection.val = { kind: "conversation", id: started.conversationId };
       await refreshLists(active.val.projectId);
-      await streamRun(started.runId, (event) => {
-        if (
-          event.type === "message.delta" &&
-          typeof event.payload.delta === "string"
-        )
-          assistantDraft.val += event.payload.delta;
-      });
-      active.val = await getConversation(started.conversationId);
-      assistantDraft.val = "";
+      await streamRun(started.runId, collectDelta);
+      await refreshActive(started.conversationId);
     } catch (cause) {
       error.val = readMessage(cause);
     } finally {
@@ -192,6 +201,67 @@ export function createAppController(): AppController {
     }
   }
 
+  async function answerInteraction(
+    id: string,
+    answer: InteractionAnswerRequest,
+  ) {
+    if (sending.val) return;
+    sending.val = true;
+    assistantDraft.val = "";
+    error.val = "";
+    try {
+      const resolved = await submitInteractionAnswer(id, answer);
+      interactions.val = interactions.val.map((item) =>
+        item.id === id ? resolved.interaction : item,
+      );
+      if (resolved.resumed) {
+        await streamRun(
+          resolved.interaction.runId,
+          collectDelta,
+          resolved.resumeFromSequence,
+        );
+      }
+      await refreshActive(resolved.interaction.conversationId);
+    } catch (cause) {
+      error.val = readMessage(cause);
+    } finally {
+      sending.val = false;
+    }
+  }
+
+  async function cancelInteraction(runId: string) {
+    if (sending.val) return;
+    sending.val = true;
+    error.val = "";
+    try {
+      await cancelWaitingRun(runId);
+      if (active.val) interactions.val = await listInteractions(active.val.id);
+    } catch (cause) {
+      error.val = readMessage(cause);
+    } finally {
+      sending.val = false;
+    }
+  }
+
+  function collectDelta(event: {
+    type: string;
+    payload: Record<string, unknown>;
+  }) {
+    if (
+      event.type === "message.delta" &&
+      typeof event.payload.delta === "string"
+    )
+      assistantDraft.val += event.payload.delta;
+  }
+
+  async function refreshActive(conversationId: string) {
+    [active.val, interactions.val] = await Promise.all([
+      getConversation(conversationId),
+      listInteractions(conversationId),
+    ]);
+    assistantDraft.val = "";
+  }
+
   async function refreshLists(projectId: string | null) {
     if (!projectId) recent.val = await listConversations();
     else {
@@ -222,6 +292,7 @@ export function createAppController(): AppController {
     projects,
     projectConversations,
     active,
+    interactions,
     loading,
     sending,
     assistantDraft,
@@ -238,6 +309,8 @@ export function createAppController(): AppController {
     deleteProject: deleteExistingProject,
     openConversation,
     send,
+    answerInteraction,
+    cancelInteraction,
   };
 }
 

apps/web/src/features/conversations/conversation-pane.ts

@@ -2,6 +2,7 @@ import van, { type State } from "vanjs-core";
 import type { AppController } from "../../app/app-controller";
 import "./conversation-pane.css";
 import { ProjectPanel } from "../projects/project-panel";
+import { InteractionCard } from "../interactions/interaction-card";
 
 const { article, button, div, h1, header, main, p, span, textarea } = van.tags;
 
@@ -29,13 +30,23 @@ export function ConversationPane(controller: AppController): HTMLElement {
               div(
                 { class: "message-list" },
                 controller.active.val.messages.map((message) =>
-                  article(
-                    { class: `message ${message.role}` },
-                    span(
-                      { class: `message-role ${message.role}-role` },
-                      message.role === "user" ? "你" : "G",
+                  div(
+                    { class: "timeline-entry" },
+                    article(
+                      { class: `message ${message.role}` },
+                      span(
+                        { class: `message-role ${message.role}-role` },
+                        message.role === "user" ? "你" : "G",
+                      ),
+                      message.content ? p(message.content) : div(),
                     ),
-                    p(message.content),
+                    controller.interactions.val
+                      .filter(
+                        (interaction) => interaction.messageId === message.id,
+                      )
+                      .map((interaction) =>
+                        InteractionCard(controller, interaction),
+                      ),
                   ),
                 ),
                 () =>
@@ -132,7 +143,10 @@ function isProjectConversation(controller: AppController): boolean {
 
 function canCompose(controller: AppController): boolean {
   const selection = controller.selection.val;
-  if (selection.kind === "conversation") return true;
+  if (selection.kind === "conversation")
+    return !controller.interactions.val.some(
+      (interaction) => interaction.status === "pending",
+    );
   if (selection.kind === "ordinary-draft") return true;
   if (selection.kind === "project-draft") {
     return (

apps/web/src/features/interactions/interaction-card.css

@@ -0,0 +1,125 @@
+.interaction-card {
+  margin: 12px 0 0 37px;
+  padding: 15px;
+  border: 1px solid #47443f;
+  border-radius: 12px;
+  background: #282725;
+}
+.interaction-card.pending {
+  border-color: #665047;
+}
+.interaction-header {
+  display: flex;
+  justify-content: space-between;
+  gap: 16px;
+}
+.interaction-header > div {
+  display: flex;
+  gap: 10px;
+}
+.interaction-mark {
+  display: grid;
+  flex: 0 0 auto;
+  width: 25px;
+  height: 25px;
+  place-items: center;
+  border-radius: 7px;
+  color: #f0b39f;
+  background: #59362c;
+  font-weight: 700;
+}
+.interaction-card h3 {
+  margin: 1px 0 0;
+  color: #e6e2dc;
+  font-size: 13px;
+}
+.interaction-card p {
+  margin: 4px 0 0;
+  color: #8f8b84;
+  font-size: 11px;
+  line-height: 1.45;
+}
+.interaction-status {
+  color: #a07d70;
+  font-size: 9px;
+  white-space: nowrap;
+}
+.interaction-options {
+  display: grid;
+  gap: 6px;
+  margin-top: 13px;
+}
+.interaction-options label {
+  display: flex;
+  gap: 9px;
+  align-items: center;
+  padding: 8px 10px;
+  border: 1px solid #3f3d39;
+  border-radius: 8px;
+  color: #c7c3bc;
+  font-size: 11px;
+  cursor: pointer;
+}
+.interaction-options label:has(input:checked) {
+  border-color: #8f5d4f;
+  background: #352925;
+}
+.interaction-options input {
+  accent-color: #b26855;
+}
+.interaction-card textarea {
+  width: 100%;
+  min-height: 84px;
+  margin-top: 13px;
+  padding: 10px;
+  resize: vertical;
+  border: 1px solid #45423e;
+  border-radius: 8px;
+  outline: 0;
+  color: #e8e4dd;
+  background: #1c1c1b;
+  font-size: 11px;
+}
+.interaction-card textarea:focus {
+  border-color: #926050;
+}
+.interaction-actions,
+.confirmation-actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: 8px;
+  margin-top: 13px;
+}
+.interaction-card button {
+  padding: 7px 11px;
+  border-radius: 7px;
+  font-size: 10px;
+}
+.interaction-card .primary {
+  color: #fff;
+  background: #a95e4d;
+}
+.interaction-card .secondary {
+  color: #ccc8c1;
+  background: #403e3a;
+}
+.interaction-card .cancel {
+  margin-right: auto;
+  color: #a59f98;
+  background: transparent;
+}
+.confirmation-cancel {
+  margin-top: 8px;
+}
+.interaction-answer {
+  margin-top: 12px;
+  padding: 9px 11px;
+  border-radius: 8px;
+  color: #d2cec7;
+  background: #1d1d1b;
+  font-size: 11px;
+  white-space: pre-wrap;
+}
+.interaction-card.cancelled {
+  opacity: 0.68;
+}

apps/web/src/features/interactions/interaction-card.ts

@@ -0,0 +1,188 @@
+import van from "vanjs-core";
+import type {
+  InteractionAnswerRequest,
+  InteractionResponse,
+} from "@great-agent/web-contracts";
+import type { AppController } from "../../app/app-controller";
+import "./interaction-card.css";
+
+const { button, div, form, h3, input, label, p, span, textarea } = van.tags;
+
+export function InteractionCard(
+  controller: AppController,
+  interaction: InteractionResponse,
+): HTMLElement {
+  if (interaction.status === "resolved")
+    return ReadonlyCard(interaction, "已回答");
+  if (interaction.status === "cancelled")
+    return ReadonlyCard(interaction, "已取消");
+  const selected = van.state<string[]>([]);
+  const text = van.state("");
+
+  async function submit(answer: InteractionAnswerRequest) {
+    await controller.answerInteraction(interaction.id, answer);
+  }
+
+  return form(
+    {
+      class: "interaction-card pending",
+      onsubmit: (event: Event) => {
+        event.preventDefault();
+        if (interaction.kind === "free_text")
+          void submit({ kind: "free_text", text: text.val });
+        else void submit({ kind: "choice", selectedOptionIds: selected.val });
+      },
+    },
+    Header(interaction, "等待回答"),
+    interaction.kind === "single_choice" ||
+      interaction.kind === "multiple_choice"
+      ? div(
+          { class: "interaction-options" },
+          (interaction.options ?? []).map((option) =>
+            label(
+              input({
+                type:
+                  interaction.kind === "single_choice" ? "radio" : "checkbox",
+                name: interaction.id,
+                value: option.id,
+                checked: () => selected.val.includes(option.id),
+                onchange: (event: Event) => {
+                  const checked = (event.target as HTMLInputElement).checked;
+                  selected.val =
+                    interaction.kind === "single_choice"
+                      ? checked
+                        ? [option.id]
+                        : []
+                      : checked
+                        ? [...selected.val, option.id]
+                        : selected.val.filter((id) => id !== option.id);
+                },
+              }),
+              span(option.label),
+            ),
+          ),
+        )
+      : null,
+    interaction.kind === "free_text"
+      ? textarea({
+          "aria-label": "填写意见",
+          maxlength: 8_192,
+          placeholder: "输入你的意见…",
+          value: text,
+          oninput: (event: Event) => {
+            text.val = (event.target as HTMLTextAreaElement).value;
+          },
+        })
+      : null,
+    interaction.kind === "confirmation"
+      ? div(
+          { class: "confirmation-actions" },
+          button(
+            {
+              type: "button",
+              class: "secondary",
+              disabled: controller.sending,
+              onclick: () =>
+                void submit({ kind: "confirmation", confirmed: false }),
+            },
+            "否",
+          ),
+          button(
+            {
+              type: "button",
+              class: "primary",
+              disabled: controller.sending,
+              onclick: () =>
+                void submit({ kind: "confirmation", confirmed: true }),
+            },
+            "确认",
+          ),
+        )
+      : div(
+          { class: "interaction-actions" },
+          button(
+            {
+              type: "button",
+              class: "cancel",
+              disabled: controller.sending,
+              onclick: () =>
+                void controller.cancelInteraction(interaction.runId),
+            },
+            "停止任务",
+          ),
+          button(
+            {
+              type: "submit",
+              class: "primary",
+              disabled: () =>
+                controller.sending.val ||
+                !canSubmit(interaction, selected.val, text.val),
+            },
+            "提交回答",
+          ),
+        ),
+    interaction.kind === "confirmation"
+      ? button(
+          {
+            type: "button",
+            class: "cancel confirmation-cancel",
+            disabled: controller.sending,
+            onclick: () => void controller.cancelInteraction(interaction.runId),
+          },
+          "停止任务",
+        )
+      : null,
+  );
+}
+
+function Header(interaction: InteractionResponse, status: string): HTMLElement {
+  return div(
+    { class: "interaction-header" },
+    div(
+      span({ class: "interaction-mark" }, "?"),
+      div(
+        h3(interaction.question),
+        interaction.description ? p(interaction.description) : null,
+      ),
+    ),
+    span({ class: "interaction-status" }, status),
+  );
+}
+
+function ReadonlyCard(
+  interaction: InteractionResponse,
+  status: string,
+): HTMLElement {
+  return div(
+    { class: `interaction-card ${interaction.status}` },
+    Header(interaction, status),
+    interaction.answer
+      ? div({ class: "interaction-answer" }, answerText(interaction))
+      : null,
+  );
+}
+
+function answerText(interaction: InteractionResponse): string {
+  const answer = interaction.answer;
+  if (!answer) return "";
+  if (answer.kind === "confirmation")
+    return answer.confirmed ? "已确认" : "已否决";
+  if (answer.kind === "free_text") return answer.text || "（未填写）";
+  const labels = new Map(
+    interaction.options?.map((option) => [option.id, option.label]),
+  );
+  return answer.selectedOptionIds.map((id) => labels.get(id) ?? id).join("、");
+}
+
+function canSubmit(
+  interaction: InteractionResponse,
+  selected: readonly string[],
+  text: string,
+): boolean {
+  if (interaction.kind === "free_text")
+    return interaction.required ? Boolean(text.trim()) : true;
+  return (
+    selected.length >= (interaction.minSelections ?? 1) &&
+    selected.length <= (interaction.maxSelections ?? 1)
+  );
+}

docs/FEATURES.md

@@ -57,13 +57,17 @@
 
 ### F-004——用户交互卡片
 
-- 状态：进行中
+- 状态：已完成（Agent 于 2026-08-14 验证通过，等待最终统一人工审核）
 - 用户可见结果：Agent 请求单选、多选、确认或意见输入，回答后继续同一 Run。
 - 主要验收：AC-034 至 AC-038。
+- 实现结果：DeepSeek 工具调用被转换为独立 `interaction.*` 领域事件；交互请求按 Run 持久化，回答后使用原 `runId` 和 `toolCallId` 继续模型请求，不创建新 Run 或用户消息。支持单选、多选、确认和自由文本，包含选项数量、选择上下限、未知选项、重复回答及 8 KiB 文本校验。
+- 页面结果：消息时间线按交互类型显示四类 VanJS 卡片；等待回答时禁用普通输入；回答后保留只读问题和答案；等待中的任务可从卡片停止并显示取消状态。
+- 自动化验证结果：2026-08-14 通过全仓类型检查、21 项测试和 75 个断言、生产构建、代码检查、格式检查、文件规模检查与架构依赖检查；Fake Model 验证暂停和恢复前后 Run 标识不变、事件序列连续。
+- 人工操作结果：2026-08-14 使用隔离数据目录和本机应用内浏览器验证四类卡片、提交条件、只读答案、取消状态及刷新恢复；页面控制台无错误。
 
 ### F-005——停止、失败与重试
 
-- 状态：待开始
+- 状态：进行中
 - 用户可见结果：停止当前生成并从失败状态重试。
 - 主要验收：AC-005、AC-010、AC-011。
 

packages/agent-core/src/domain/agent-run.ts

@@ -1,4 +1,9 @@
-export type AgentRunStatus = "running" | "completed" | "failed";
+export type AgentRunStatus =
+  | "running"
+  | "waiting_user"
+  | "completed"
+  | "failed"
+  | "cancelled";
 
 export type AgentRun = Readonly<{
   id: string;
@@ -19,7 +24,11 @@ export type RunEvent = Readonly<{
     | "message.started"
     | "message.delta"
     | "message.completed"
+    | "interaction.requested"
+    | "interaction.resolved"
+    | "interaction.cancelled"
     | "run.completed"
-    | "run.failed";
+    | "run.failed"
+    | "run.cancelled";
   payload: Record<string, unknown>;
 }>;

packages/agent-core/src/domain/user-interaction.ts

@@ -0,0 +1,35 @@
+export type InteractionKind =
+  | "single_choice"
+  | "multiple_choice"
+  | "confirmation"
+  | "free_text";
+
+export type InteractionStatus = "pending" | "resolved" | "cancelled";
+
+export type InteractionOption = Readonly<{ id: string; label: string }>;
+
+export type InteractionAnswer =
+  | Readonly<{ kind: "choice"; selectedOptionIds: readonly string[] }>
+  | Readonly<{ kind: "confirmation"; confirmed: boolean }>
+  | Readonly<{ kind: "free_text"; text: string }>;
+
+export type UserInteraction = Readonly<{
+  id: string;
+  runId: string;
+  conversationId: string;
+  messageId: string;
+  toolCallId: string;
+  toolArguments: string;
+  kind: InteractionKind;
+  question: string;
+  description?: string;
+  options?: readonly InteractionOption[];
+  required: boolean;
+  minSelections?: number;
+  maxSelections?: number;
+  status: InteractionStatus;
+  answer?: InteractionAnswer;
+  createdAt: string;
+  resolvedAt?: string;
+  cancelledAt?: string;
+}>;

packages/agent-core/src/index.ts

@@ -7,10 +7,23 @@ export type {
 } from "./domain/conversation";
 export type { AgentRun, AgentRunStatus, RunEvent } from "./domain/agent-run";
 export type { Project, ProjectView } from "./domain/project";
+export type {
+  InteractionAnswer,
+  InteractionKind,
+  InteractionOption,
+  InteractionStatus,
+  UserInteraction,
+} from "./domain/user-interaction";
 export type { ConversationRepository } from "./ports/conversation-repository";
-export type { ModelEvent, ModelPort, ModelRequest } from "./ports/model-port";
+export type {
+  ModelEvent,
+  ModelPort,
+  ModelRequest,
+  ModelTool,
+} from "./ports/model-port";
 export type { RunRepository } from "./ports/run-repository";
 export type { ProjectRepository } from "./ports/project-repository";
+export type { InteractionRepository } from "./ports/interaction-repository";
 export type {
   ClockPort,
   IdPort,
@@ -29,3 +42,7 @@ export {
   ProjectService,
   type ProjectServiceDependencies,
 } from "./use-cases/project-service";
+export {
+  InteractionService,
+  type InteractionServiceDependencies,
+} from "./use-cases/interaction-service";

packages/agent-core/src/ports/interaction-repository.ts

@@ -0,0 +1,11 @@
+import type { UserInteraction } from "../domain/user-interaction";
+
+export interface InteractionRepository {
+  create(interaction: UserInteraction): Promise<void>;
+  update(interaction: UserInteraction): Promise<void>;
+  getById(id: string): Promise<UserInteraction | null>;
+  listByConversation(
+    conversationId: string,
+  ): Promise<readonly UserInteraction[]>;
+  findPendingByRun(runId: string): Promise<UserInteraction | null>;
+}

packages/agent-core/src/ports/model-port.ts

@@ -3,10 +3,29 @@ import type { Message } from "../domain/conversation";
 export type ModelRequest = Readonly<{
   model: string;
   messages: readonly Message[];
+  tools?: readonly ModelTool[];
+  continuation?: Readonly<{
+    toolCallId: string;
+    toolName: string;
+    toolArguments: string;
+    result: string;
+  }>;
+}>;
+
+export type ModelTool = Readonly<{
+  name: string;
+  description: string;
+  parameters: Record<string, unknown>;
 }>;
 
 export type ModelEvent =
   | Readonly<{ type: "text.delta"; delta: string }>
+  | Readonly<{
+      type: "tool.requested";
+      toolCallId: string;
+      name: string;
+      arguments: string;
+    }>
   | Readonly<{ type: "response.completed" }>;
 
 export interface ModelPort {

packages/agent-core/src/use-cases/agent-run-service.test.ts

@@ -7,13 +7,19 @@ import type {
   RunEvent,
   RunRepository,
 } from "..";
-import { AgentRunService, ConversationService, type ProjectService } from "..";
+import {
+  AgentRunService,
+  ConversationService,
+  type InteractionService,
+  type ProjectService,
+} from "..";
 
 const projects = {
   requireAvailable: async () => {
     throw new Error("unused");
   },
 } as unknown as ProjectService;
+const interactions = {} as InteractionService;
 
 class MemoryConversationRepository implements ConversationRepository {
   readonly values = new Map<string, Conversation>();
@@ -96,6 +102,7 @@ describe("AgentRunService", () => {
       { now: () => new Date("2026-08-12T00:00:00.000Z") },
       { create: () => `id_${++nextId}` },
       projects,
+      interactions,
     );
     const started = await service.start(
       { kind: "ordinary", message: "开始" },
@@ -148,6 +155,7 @@ describe("AgentRunService", () => {
       { now: () => new Date() },
       { create: () => `id_${++id}` },
       projects,
+      interactions,
     );
     const started = await service.start(
       { kind: "ordinary", message: "开始" },

packages/agent-core/src/use-cases/agent-run-service.ts

@@ -1,10 +1,12 @@
 import type { AgentRun, RunEvent } from "../domain/agent-run";
 import type { Conversation } from "../domain/conversation";
+import type { UserInteraction } from "../domain/user-interaction";
 import { CoreError } from "../errors/core-error";
-import type { ModelPort } from "../ports/model-port";
+import type { ModelPort, ModelRequest, ModelTool } from "../ports/model-port";
 import type { RunRepository } from "../ports/run-repository";
 import type { ClockPort, IdPort } from "../ports/system-ports";
 import type { ConversationService } from "./conversation-service";
+import type { InteractionService } from "./interaction-service";
 import type { ProjectService } from "./project-service";
 
 export type StartRunInput =
@@ -17,6 +19,36 @@ export type StartedRun = Readonly<{
   events: AsyncIterable<RunEvent>;
 }>;
 
+const interactionTool: ModelTool = {
+  name: "request_user_interaction",
+  description: "需要用户选择、确认或补充意见时调用。调用后等待用户回答。",
+  parameters: {
+    type: "object",
+    required: ["kind", "question"],
+    properties: {
+      kind: {
+        type: "string",
+        enum: ["single_choice", "multiple_choice", "confirmation", "free_text"],
+      },
+      question: { type: "string" },
+      description: { type: "string" },
+      required: { type: "boolean" },
+      options: {
+        type: "array",
+        minItems: 2,
+        maxItems: 10,
+        items: {
+          type: "object",
+          required: ["id", "label"],
+          properties: { id: { type: "string" }, label: { type: "string" } },
+        },
+      },
+      minSelections: { type: "integer", minimum: 0 },
+      maxSelections: { type: "integer", minimum: 1 },
+    },
+  },
+};
+
 export class AgentRunService {
   constructor(
     private readonly conversations: ConversationService,
@@ -25,35 +57,12 @@ export class AgentRunService {
     private readonly clock: ClockPort,
     private readonly ids: IdPort,
     private readonly projects: ProjectService,
+    private readonly interactions: InteractionService,
   ) {}
 
   async start(input: StartRunInput, signal: AbortSignal): Promise<StartedRun> {
     const runId = this.ids.create();
-    let conversation: Conversation;
-    if (input.kind === "ordinary") {
-      conversation = await this.conversations.createWithFirstMessage(
-        input.message,
-        runId,
-      );
-    } else if (input.kind === "project") {
-      await this.projects.requireAvailable(input.projectId);
-      conversation = await this.conversations.createProjectWithFirstMessage(
-        input.projectId,
-        input.message,
-        runId,
-      );
-    } else {
-      const existing = await this.conversations.getConversation(
-        input.conversationId,
-      );
-      if (existing.projectId)
-        await this.projects.requireAvailable(existing.projectId);
-      conversation = await this.conversations.appendUserMessage(
-        input.conversationId,
-        input.message,
-        runId,
-      );
-    }
+    const conversation = await this.prepareConversation(input, runId);
     const timestamp = this.clock.now().toISOString();
     const triggerMessage = conversation.messages.at(-1);
     if (triggerMessage?.role !== "user")
@@ -67,30 +76,123 @@ export class AgentRunService {
       updatedAt: timestamp,
     };
     await this.runs.create(run);
-    return { run, events: this.execute(run, signal) };
+    return { run, events: this.execute(run, signal, 0) };
+  }
+
+  async resume(
+    interaction: UserInteraction,
+    signal: AbortSignal,
+  ): Promise<StartedRun> {
+    const current = await this.requireRun(interaction.runId);
+    if (current.status !== "waiting_user")
+      throw new CoreError("RUN_NOT_WAITING", "该任务当前没有等待用户回答");
+    if (!interaction.answer)
+      throw new CoreError("INTERACTION_INVALID", "交互答案不存在");
+    const run = {
+      ...current,
+      status: "running" as const,
+      updatedAt: this.clock.now().toISOString(),
+    };
+    await this.runs.update(run);
+    const sequence = lastSequence(await this.runs.listEvents(run.id));
+    const continuation: NonNullable<ModelRequest["continuation"]> = {
+      toolCallId: interaction.toolCallId,
+      toolName: "request_user_interaction",
+      toolArguments: interaction.toolArguments,
+      result: JSON.stringify(interaction.answer),
+    };
+    return {
+      run,
+      events: this.execute(run, signal, sequence, continuation, interaction),
+    };
+  }
+
+  async cancelWaiting(runId: string): Promise<readonly RunEvent[]> {
+    const run = await this.requireRun(runId);
+    if (run.status === "cancelled") return [];
+    if (run.status !== "waiting_user")
+      throw new CoreError("RUN_NOT_WAITING", "该任务当前不在等待用户回答");
+    const interaction = await this.interactions.cancelPending(runId);
+    if (!interaction)
+      throw new CoreError("INTERACTION_NOT_FOUND", "等待中的交互请求不存在");
+    let sequence = lastSequence(await this.runs.listEvents(run.id));
+    const cancelled = await this.persistEvent(
+      run.id,
+      ++sequence,
+      "interaction.cancelled",
+      { interactionId: interaction.id },
+    );
+    await this.runs.update({
+      ...run,
+      status: "cancelled",
+      updatedAt: this.clock.now().toISOString(),
+    });
+    const finished = await this.persistEvent(
+      run.id,
+      ++sequence,
+      "run.cancelled",
+      {},
+    );
+    return [cancelled, finished];
+  }
+
+  async lastSequence(runId: string): Promise<number> {
+    await this.requireRun(runId);
+    return lastSequence(await this.runs.listEvents(runId));
+  }
+
+  getRun(runId: string): Promise<AgentRun> {
+    return this.requireRun(runId);
+  }
+
+  private async prepareConversation(
+    input: StartRunInput,
+    runId: string,
+  ): Promise<Conversation> {
+    if (input.kind === "ordinary")
+      return this.conversations.createWithFirstMessage(input.message, runId);
+    if (input.kind === "project") {
+      await this.projects.requireAvailable(input.projectId);
+      return this.conversations.createProjectWithFirstMessage(
+        input.projectId,
+        input.message,
+        runId,
+      );
+    }
+    const existing = await this.conversations.getConversation(
+      input.conversationId,
+    );
+    if (existing.projectId)
+      await this.projects.requireAvailable(existing.projectId);
+    return this.conversations.appendUserMessage(
+      input.conversationId,
+      input.message,
+      runId,
+    );
   }
 
   private async *execute(
     run: AgentRun,
     signal: AbortSignal,
+    initialSequence: number,
+    continuation?: NonNullable<ModelRequest["continuation"]>,
+    resolvedInteraction?: UserInteraction,
   ): AsyncIterable<RunEvent> {
-    let sequence = 0;
+    let sequence = initialSequence;
     const event = async (
       type: RunEvent["type"],
       payload: Record<string, unknown>,
-    ) => {
-      const value: RunEvent = {
-        runId: run.id,
-        sequence: ++sequence,
-        timestamp: this.clock.now().toISOString(),
-        type,
-        payload,
-      };
-      await this.runs.appendEvent(value);
-      return value;
-    };
+    ) => this.persistEvent(run.id, ++sequence, type, payload);
     try {
-      yield await event("run.started", { conversationId: run.conversationId });
+      if (!continuation)
+        yield await event("run.started", {
+          conversationId: run.conversationId,
+        });
+      if (resolvedInteraction)
+        yield await event("interaction.resolved", {
+          interactionId: resolvedInteraction.id,
+          answer: resolvedInteraction.answer,
+        });
       const messageId = this.ids.create();
       yield await event("message.started", { messageId });
       const conversation = await this.conversations.getConversation(
@@ -98,15 +200,50 @@ export class AgentRunService {
       );
       let content = "";
       for await (const modelEvent of this.model.stream(
-        { model: "default", messages: conversation.messages },
+        {
+          model: "default",
+          messages: conversation.messages,
+          tools: [interactionTool],
+          ...(continuation ? { continuation } : {}),
+        },
         signal,
       )) {
-        if (modelEvent.type !== "text.delta") continue;
-        content += modelEvent.delta;
-        yield await event("message.delta", {
-          messageId,
-          delta: modelEvent.delta,
-        });
+        if (modelEvent.type === "text.delta") {
+          content += modelEvent.delta;
+          yield await event("message.delta", {
+            messageId,
+            delta: modelEvent.delta,
+          });
+          continue;
+        }
+        if (modelEvent.type === "tool.requested") {
+          if (modelEvent.name !== interactionTool.name)
+            throw new CoreError(
+              "TOOL_NOT_SUPPORTED",
+              "模型请求了尚未支持的工具",
+            );
+          await this.conversations.appendAssistantMessage(
+            run.conversationId,
+            messageId,
+            run.id,
+            content,
+          );
+          yield await event("message.completed", { messageId, content });
+          const interaction = await this.interactions.create({
+            runId: run.id,
+            conversationId: run.conversationId,
+            messageId,
+            toolCallId: modelEvent.toolCallId,
+            toolArguments: modelEvent.arguments,
+          });
+          await this.runs.update({
+            ...run,
+            status: "waiting_user",
+            updatedAt: this.clock.now().toISOString(),
+          });
+          yield await event("interaction.requested", { interaction });
+          return;
+        }
       }
       if (!content)
         throw new CoreError("MODEL_RESPONSE_INVALID", "模型没有返回有效内容");
@@ -138,8 +275,34 @@ export class AgentRunService {
       });
     }
   }
+
+  private async requireRun(id: string): Promise<AgentRun> {
+    const run = await this.runs.getById(id);
+    if (!run) throw new CoreError("RUN_NOT_FOUND", "任务不存在");
+    return run;
+  }
+
+  private async persistEvent(
+    runId: string,
+    sequence: number,
+    type: RunEvent["type"],
+    payload: Record<string, unknown>,
+  ) {
+    const value: RunEvent = {
+      runId,
+      sequence,
+      timestamp: this.clock.now().toISOString(),
+      type,
+      payload,
+    };
+    await this.runs.appendEvent(value);
+    return value;
+  }
 }
 
+function lastSequence(events: readonly RunEvent[]): number {
+  return events.at(-1)?.sequence ?? 0;
+}
 function safeErrorMessage(cause: unknown): string {
   return cause instanceof CoreError ? cause.message : "模型服务暂时不可用";
 }

packages/agent-core/src/use-cases/interaction-run.test.ts

@@ -0,0 +1,212 @@
+import { describe, expect, test } from "bun:test";
+import type {
+  AgentRun,
+  Conversation,
+  ConversationRepository,
+  InteractionRepository,
+  ModelPort,
+  ProjectService,
+  RunEvent,
+  RunRepository,
+  UserInteraction,
+} from "..";
+import { AgentRunService, ConversationService, InteractionService } from "..";
+
+class Conversations implements ConversationRepository {
+  values = new Map<string, Conversation>();
+  async listRecent() {
+    return [...this.values.values()];
+  }
+  async listByProject(projectId: string) {
+    return [...this.values.values()].filter(
+      (value) => value.projectId === projectId,
+    );
+  }
+  async getById(id: string) {
+    return this.values.get(id) ?? null;
+  }
+  async create(value: Conversation) {
+    this.values.set(value.id, value);
+  }
+  async appendMessage(id: string, message: Conversation["messages"][number]) {
+    const current = this.values.get(id);
+    if (!current) throw new Error("not found");
+    const next = {
+      ...current,
+      messages: [...current.messages, message],
+      updatedAt: message.createdAt,
+    };
+    this.values.set(id, next);
+    return next;
+  }
+  async deleteByProject() {}
+}
+class Runs implements RunRepository {
+  values = new Map<string, AgentRun>();
+  events: RunEvent[] = [];
+  async create(value: AgentRun) {
+    this.values.set(value.id, value);
+  }
+  async update(value: AgentRun) {
+    this.values.set(value.id, value);
+  }
+  async getById(id: string) {
+    return this.values.get(id) ?? null;
+  }
+  async appendEvent(event: RunEvent) {
+    this.events.push(event);
+  }
+  async listEvents(id: string) {
+    return this.events.filter((event) => event.runId === id);
+  }
+  async hasActiveForConversations() {
+    return false;
+  }
+  async deleteByConversations() {}
+}
+class Interactions implements InteractionRepository {
+  values = new Map<string, UserInteraction>();
+  async create(value: UserInteraction) {
+    this.values.set(value.id, value);
+  }
+  async update(value: UserInteraction) {
+    this.values.set(value.id, value);
+  }
+  async getById(id: string) {
+    return this.values.get(id) ?? null;
+  }
+  async listByConversation(id: string) {
+    return [...this.values.values()].filter(
+      (value) => value.conversationId === id,
+    );
+  }
+  async findPendingByRun(id: string) {
+    return (
+      [...this.values.values()].find(
+        (value) => value.runId === id && value.status === "pending",
+      ) ?? null
+    );
+  }
+}
+
+describe("等待用户的 Run", () => {
+  test("回答交互后使用同一个 Run 和 toolCallId 继续生成", async () => {
+    const fixture = createFixture();
+    const started = await fixture.service.start(
+      { kind: "ordinary", message: "请让我选择" },
+      new AbortController().signal,
+    );
+    const firstEvents = await collect(started.events);
+    expect(firstEvents.at(-1)?.type).toBe("interaction.requested");
+    expect(fixture.runs.values.get(started.run.id)?.status).toBe(
+      "waiting_user",
+    );
+    const interaction = [...fixture.interactions.values.values()][0];
+    expect(interaction?.status).toBe("pending");
+    if (!interaction) throw new Error("interaction missing");
+    const resolved = await fixture.interactionService.resolve(interaction.id, {
+      kind: "choice",
+      selectedOptionIds: ["simple"],
+    });
+    const resumed = await fixture.service.resume(
+      resolved.interaction,
+      new AbortController().signal,
+    );
+    const nextEvents = await collect(resumed.events);
+    expect(resumed.run.id).toBe(started.run.id);
+    expect(nextEvents[0]?.type).toBe("interaction.resolved");
+    expect(nextEvents.at(-1)?.type).toBe("run.completed");
+    expect(
+      new Set(fixture.runs.events.map((event) => event.sequence)).size,
+    ).toBe(fixture.runs.events.length);
+    expect(
+      (
+        await fixture.conversationService.getConversation(
+          started.run.conversationId,
+        )
+      ).messages.at(-1)?.content,
+    ).toBe("已按你的选择继续完成");
+  });
+
+  test("等待回答时可以取消，卡片和 Run 都进入取消终态", async () => {
+    const fixture = createFixture();
+    const started = await fixture.service.start(
+      { kind: "ordinary", message: "请让我选择" },
+      new AbortController().signal,
+    );
+    await collect(started.events);
+    const events = await fixture.service.cancelWaiting(started.run.id);
+    expect(events.map((event) => event.type)).toEqual([
+      "interaction.cancelled",
+      "run.cancelled",
+    ]);
+    expect(fixture.runs.values.get(started.run.id)?.status).toBe("cancelled");
+    expect([...fixture.interactions.values.values()][0]?.status).toBe(
+      "cancelled",
+    );
+  });
+});
+
+function createFixture() {
+  let id = 0;
+  const clock = { now: () => new Date("2026-08-14T00:00:00Z") };
+  const ids = { create: () => `id_${++id}` };
+  const conversations = new Conversations();
+  const runs = new Runs();
+  const interactions = new Interactions();
+  const conversationService = new ConversationService({
+    conversations,
+    clock,
+    ids,
+  });
+  const interactionService = new InteractionService({
+    interactions,
+    clock,
+    ids,
+  });
+  const model: ModelPort = {
+    async *stream(request) {
+      if (!request.continuation) {
+        yield {
+          type: "tool.requested",
+          toolCallId: "tool_choice",
+          name: "request_user_interaction",
+          arguments: JSON.stringify({
+            kind: "single_choice",
+            question: "选择实现方式",
+            options: [
+              { id: "simple", label: "简化" },
+              { id: "full", label: "完整" },
+            ],
+          }),
+        };
+      } else {
+        expect(request.continuation.toolCallId).toBe("tool_choice");
+        expect(request.continuation.result).toContain("simple");
+        yield { type: "text.delta", delta: "已按你的选择继续完成" };
+        yield { type: "response.completed" };
+      }
+    },
+  };
+  const service = new AgentRunService(
+    conversationService,
+    model,
+    runs,
+    clock,
+    ids,
+    {} as ProjectService,
+    interactionService,
+  );
+  return {
+    service,
+    runs,
+    interactions,
+    conversationService,
+    interactionService,
+  };
+}
+async function collect(events: AsyncIterable<RunEvent>) {
+  const values: RunEvent[] = [];
+  for await (const event of events) values.push(event);
+  return values;
+}

packages/agent-core/src/use-cases/interaction-service.test.ts

@@ -0,0 +1,127 @@
+import { describe, expect, test } from "bun:test";
+import type { InteractionRepository, UserInteraction } from "..";
+import { InteractionService } from "..";
+
+class Interactions implements InteractionRepository {
+  values = new Map<string, UserInteraction>();
+  async create(value: UserInteraction) {
+    this.values.set(value.id, value);
+  }
+  async update(value: UserInteraction) {
+    this.values.set(value.id, value);
+  }
+  async getById(id: string) {
+    return this.values.get(id) ?? null;
+  }
+  async listByConversation(id: string) {
+    return [...this.values.values()].filter(
+      (value) => value.conversationId === id,
+    );
+  }
+  async findPendingByRun(id: string) {
+    return (
+      [...this.values.values()].find(
+        (value) => value.runId === id && value.status === "pending",
+      ) ?? null
+    );
+  }
+}
+
+describe("InteractionService", () => {
+  test("校验多选限制并保证相同答案幂等", async () => {
+    const service = createService();
+    const interaction = await service.create(
+      input(
+        JSON.stringify({
+          kind: "multiple_choice",
+          question: "选择两个方向",
+          options: [
+            { id: "a", label: "方向 A" },
+            { id: "b", label: "方向 B" },
+            { id: "c", label: "方向 C" },
+          ],
+          minSelections: 2,
+          maxSelections: 2,
+        }),
+      ),
+    );
+    expect(
+      service.resolve(interaction.id, {
+        kind: "choice",
+        selectedOptionIds: ["a"],
+      }),
+    ).rejects.toMatchObject({ code: "INTERACTION_INVALID" });
+    expect(
+      service.resolve(interaction.id, {
+        kind: "choice",
+        selectedOptionIds: ["a", "unknown"],
+      }),
+    ).rejects.toMatchObject({ code: "INTERACTION_INVALID" });
+    const answer = { kind: "choice" as const, selectedOptionIds: ["a", "b"] };
+    expect((await service.resolve(interaction.id, answer)).changed).toBe(true);
+    expect((await service.resolve(interaction.id, answer)).changed).toBe(false);
+    expect(
+      service.resolve(interaction.id, {
+        kind: "choice",
+        selectedOptionIds: ["b", "c"],
+      }),
+    ).rejects.toMatchObject({ code: "INTERACTION_ALREADY_RESOLVED" });
+  });
+
+  test("支持单选、确认和最多 8 KiB 的自由文本", async () => {
+    const service = createService();
+    const single = await service.create(
+      input(
+        JSON.stringify({
+          kind: "single_choice",
+          question: "选一个",
+          options: [
+            { id: "a", label: "A" },
+            { id: "b", label: "B" },
+          ],
+        }),
+      ),
+    );
+    const confirmation = await service.create({
+      ...input(JSON.stringify({ kind: "confirmation", question: "确认吗" })),
+      toolCallId: "tool_2",
+    });
+    const freeText = await service.create({
+      ...input(JSON.stringify({ kind: "free_text", question: "有什么意见" })),
+      toolCallId: "tool_3",
+    });
+    await expect(
+      service.resolve(single.id, { kind: "choice", selectedOptionIds: ["a"] }),
+    ).resolves.toBeDefined();
+    await expect(
+      service.resolve(confirmation.id, {
+        kind: "confirmation",
+        confirmed: true,
+      }),
+    ).resolves.toBeDefined();
+    await expect(
+      service.resolve(freeText.id, {
+        kind: "free_text",
+        text: "x".repeat(8_193),
+      }),
+    ).rejects.toMatchObject({ code: "INTERACTION_INVALID" });
+  });
+});
+
+function createService() {
+  let id = 0;
+  return new InteractionService({
+    interactions: new Interactions(),
+    clock: { now: () => new Date("2026-08-14T00:00:00Z") },
+    ids: { create: () => `interaction_${++id}` },
+  });
+}
+function input(toolArguments: string) {
+  return {
+    runId: "run_1",
+    conversationId: "conversation_1",
+    messageId: "message_1",
+    toolCallId: `tool_${toolArguments.length}`,
+    toolArguments,
+  };
+}

packages/agent-core/src/use-cases/interaction-service.ts

@@ -0,0 +1,215 @@
+import type {
+  InteractionAnswer,
+  InteractionKind,
+  InteractionOption,
+  UserInteraction,
+} from "../domain/user-interaction";
+import { CoreError } from "../errors/core-error";
+import type { InteractionRepository } from "../ports/interaction-repository";
+import type { ClockPort, IdPort } from "../ports/system-ports";
+
+export type InteractionServiceDependencies = Readonly<{
+  interactions: InteractionRepository;
+  clock: ClockPort;
+  ids: IdPort;
+}>;
+
+export class InteractionService {
+  constructor(private readonly dependencies: InteractionServiceDependencies) {}
+
+  listByConversation(conversationId: string) {
+    return this.dependencies.interactions.listByConversation(conversationId);
+  }
+
+  async get(id: string): Promise<UserInteraction> {
+    const interaction = await this.dependencies.interactions.getById(id);
+    if (!interaction)
+      throw new CoreError("INTERACTION_NOT_FOUND", "交互请求不存在");
+    return interaction;
+  }
+
+  async create(input: {
+    runId: string;
+    conversationId: string;
+    messageId: string;
+    toolCallId: string;
+    toolArguments: string;
+  }): Promise<UserInteraction> {
+    const interaction: UserInteraction = {
+      id: this.dependencies.ids.create(),
+      ...input,
+      ...parseSpecification(input.toolArguments),
+      status: "pending",
+      createdAt: this.dependencies.clock.now().toISOString(),
+    };
+    await this.dependencies.interactions.create(interaction);
+    return interaction;
+  }
+
+  async resolve(
+    id: string,
+    answer: InteractionAnswer,
+  ): Promise<{ interaction: UserInteraction; changed: boolean }> {
+    const current = await this.get(id);
+    if (current.status === "cancelled")
+      throw new CoreError("INTERACTION_CANCELLED", "该交互请求已取消");
+    validateAnswer(current, answer);
+    if (current.status === "resolved") {
+      if (JSON.stringify(current.answer) === JSON.stringify(answer))
+        return { interaction: current, changed: false };
+      throw new CoreError(
+        "INTERACTION_ALREADY_RESOLVED",
+        "该交互请求已经回答，不能修改答案",
+      );
+    }
+    const interaction: UserInteraction = {
+      ...current,
+      status: "resolved",
+      answer,
+      resolvedAt: this.dependencies.clock.now().toISOString(),
+    };
+    await this.dependencies.interactions.update(interaction);
+    return { interaction, changed: true };
+  }
+
+  async cancelPending(runId: string): Promise<UserInteraction | null> {
+    const current =
+      await this.dependencies.interactions.findPendingByRun(runId);
+    if (!current) return null;
+    const interaction: UserInteraction = {
+      ...current,
+      status: "cancelled",
+      cancelledAt: this.dependencies.clock.now().toISOString(),
+    };
+    await this.dependencies.interactions.update(interaction);
+    return interaction;
+  }
+}
+
+type Specification = Pick<
+  UserInteraction,
+  | "kind"
+  | "question"
+  | "description"
+  | "options"
+  | "required"
+  | "minSelections"
+  | "maxSelections"
+>;
+
+function parseSpecification(argumentsText: string): Specification {
+  let value: unknown;
+  try {
+    value = JSON.parse(argumentsText);
+  } catch {
+    throw invalid("交互参数不是有效 JSON");
+  }
+  if (!isRecord(value)) throw invalid("交互参数必须是对象");
+  const kind = value.kind;
+  if (!isKind(kind)) throw invalid("交互类型无效");
+  const question = readText(value.question, "问题", 500);
+  const description = readOptionalText(value.description, "说明", 2_000);
+  const required = value.required === undefined ? true : value.required;
+  if (typeof required !== "boolean") throw invalid("必填标记无效");
+  if (kind === "single_choice" || kind === "multiple_choice") {
+    const options = readOptions(value.options);
+    const minSelections =
+      kind === "single_choice" ? 1 : readInteger(value.minSelections, 1);
+    const maxSelections =
+      kind === "single_choice"
+        ? 1
+        : readInteger(value.maxSelections, options.length);
+    if (
+      minSelections < 0 ||
+      maxSelections < minSelections ||
+      maxSelections > options.length
+    )
+      throw invalid("多选数量限制无效");
+    return {
+      kind,
+      question,
+      ...(description ? { description } : {}),
+      options,
+      required,
+      minSelections,
+      maxSelections,
+    };
+  }
+  return { kind, question, ...(description ? { description } : {}), required };
+}
+
+function validateAnswer(
+  interaction: UserInteraction,
+  answer: InteractionAnswer,
+) {
+  if (interaction.kind === "confirmation") {
+    if (answer.kind !== "confirmation") throw invalid("确认答案格式无效");
+    return;
+  }
+  if (interaction.kind === "free_text") {
+    if (answer.kind !== "free_text") throw invalid("意见答案格式无效");
+    const text = answer.text.trim();
+    if (text.length > 8_192) throw invalid("意见内容不能超过 8 KiB");
+    if (interaction.required && !text) throw invalid("请填写意见");
+    return;
+  }
+  if (answer.kind !== "choice") throw invalid("选项答案格式无效");
+  const selected = [...new Set(answer.selectedOptionIds)];
+  if (selected.length !== answer.selectedOptionIds.length)
+    throw invalid("不能重复选择同一选项");
+  const optionIds = new Set(interaction.options?.map((option) => option.id));
+  if (selected.some((id) => !optionIds.has(id)))
+    throw invalid("答案包含未知选项");
+  if (selected.length < (interaction.minSelections ?? 0))
+    throw invalid("选择数量不足");
+  if (selected.length > (interaction.maxSelections ?? 1))
+    throw invalid("选择数量过多");
+}
+
+function readOptions(value: unknown): readonly InteractionOption[] {
+  if (!Array.isArray(value) || value.length < 2 || value.length > 10)
+    throw invalid("单选和多选必须提供 2 至 10 个选项");
+  const options = value.map((item) => {
+    if (!isRecord(item)) throw invalid("选项格式无效");
+    return {
+      id: readText(item.id, "选项标识", 100),
+      label: readText(item.label, "选项文字", 300),
+    };
+  });
+  if (new Set(options.map((option) => option.id)).size !== options.length)
+    throw invalid("选项标识不能重复");
+  return options;
+}
+function readText(value: unknown, name: string, max: number): string {
+  if (typeof value !== "string" || !value.trim() || value.trim().length > max)
+    throw invalid(`${name}无效`);
+  return value.trim();
+}
+function readOptionalText(
+  value: unknown,
+  name: string,
+  max: number,
+): string | undefined {
+  return value === undefined ? undefined : readText(value, name, max);
+}
+function readInteger(value: unknown, fallback: number): number {
+  return value === undefined
+    ? fallback
+    : typeof value === "number" && Number.isInteger(value)
+      ? value
+      : Number.NaN;
+}
+function isRecord(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+function isKind(value: unknown): value is InteractionKind {
+  return (
+    value === "single_choice" ||
+    value === "multiple_choice" ||
+    value === "confirmation" ||
+    value === "free_text"
+  );
+}
+function invalid(message: string): CoreError {
+  return new CoreError("INTERACTION_INVALID", message);
+}

packages/local-data/src/index.ts

@@ -9,3 +9,4 @@ export {
 export { FileConversationRepository } from "./repositories/file-conversation-repository";
 export { FileRunRepository } from "./repositories/file-run-repository";
 export { FileProjectRepository } from "./repositories/file-project-repository";
+export { FileInteractionRepository } from "./repositories/file-interaction-repository";

packages/local-data/src/repositories/file-interaction-repository.test.ts

@@ -0,0 +1,45 @@
+import { describe, expect, test } from "bun:test";
+import { mkdtemp, rm } from "node:fs/promises";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import type { UserInteraction } from "@great-agent/agent-core";
+import { createDataLayout, ensureDataLayout } from "../layout/data-layout";
+import { FileInteractionRepository } from "./file-interaction-repository";
+
+describe("FileInteractionRepository", () => {
+  test("在所属 Run 下持久化并恢复交互状态", async () => {
+    const root = await mkdtemp(join(tmpdir(), "great-agent-interactions-"));
+    try {
+      const layout = createDataLayout(root);
+      await ensureDataLayout(layout);
+      const repository = new FileInteractionRepository(layout);
+      const pending: UserInteraction = {
+        id: "interaction_1",
+        runId: "run_1",
+        conversationId: "conversation_1",
+        messageId: "message_1",
+        toolCallId: "tool_1",
+        toolArguments: "{}",
+        kind: "confirmation",
+        question: "确认吗？",
+        required: true,
+        status: "pending",
+        createdAt: "2026-08-14T00:00:00Z",
+      };
+      await repository.create(pending);
+      expect(await repository.findPendingByRun("run_1")).toEqual(pending);
+      await repository.update({
+        ...pending,
+        status: "resolved",
+        answer: { kind: "confirmation", confirmed: true },
+        resolvedAt: "2026-08-14T00:01:00Z",
+      });
+      expect(
+        (await repository.listByConversation("conversation_1"))[0]?.status,
+      ).toBe("resolved");
+      expect(await repository.findPendingByRun("run_1")).toBeNull();
+    } finally {
+      await rm(root, { recursive: true });
+    }
+  });
+});

packages/local-data/src/repositories/file-interaction-repository.ts

@@ -0,0 +1,84 @@
+import { mkdir, readFile, readdir } from "node:fs/promises";
+import { join } from "node:path";
+import type {
+  InteractionRepository,
+  UserInteraction,
+} from "@great-agent/agent-core";
+import { writeJsonAtomically } from "../atomic-writes/write-json-atomically";
+import type { DataLayout } from "../layout/data-layout";
+
+export class FileInteractionRepository implements InteractionRepository {
+  constructor(private readonly layout: DataLayout) {}
+
+  async create(interaction: UserInteraction): Promise<void> {
+    if (await this.getById(interaction.id)) throw new Error("交互标识已经存在");
+    await this.update(interaction);
+  }
+
+  async update(interaction: UserInteraction): Promise<void> {
+    const directory = this.directory(interaction.runId);
+    await mkdir(directory, { recursive: true });
+    await writeJsonAtomically(
+      join(directory, `${interaction.id}.json`),
+      interaction,
+    );
+  }
+
+  async getById(id: string): Promise<UserInteraction | null> {
+    for (const interaction of await this.readAll())
+      if (interaction.id === id) return interaction;
+    return null;
+  }
+
+  async listByConversation(
+    conversationId: string,
+  ): Promise<readonly UserInteraction[]> {
+    return (await this.readAll())
+      .filter((interaction) => interaction.conversationId === conversationId)
+      .sort((left, right) => left.createdAt.localeCompare(right.createdAt));
+  }
+
+  async findPendingByRun(runId: string): Promise<UserInteraction | null> {
+    const values = await this.readRun(runId);
+    return (
+      values.find((interaction) => interaction.status === "pending") ?? null
+    );
+  }
+
+  private async readAll(): Promise<UserInteraction[]> {
+    await mkdir(this.layout.runs, { recursive: true });
+    const entries = await readdir(this.layout.runs, { withFileTypes: true });
+    return (
+      await Promise.all(
+        entries
+          .filter((entry) => entry.isDirectory())
+          .map((entry) => this.readRun(entry.name)),
+      )
+    ).flat();
+  }
+
+  private async readRun(runId: string): Promise<UserInteraction[]> {
+    const directory = this.directory(runId);
+    try {
+      const names = await readdir(directory);
+      return Promise.all(
+        names
+          .filter((name) => name.endsWith(".json"))
+          .map(
+            async (name) =>
+              JSON.parse(
+                await readFile(join(directory, name), "utf8"),
+              ) as UserInteraction,
+          ),
+      );
+    } catch (error) {
+      if (error instanceof Error && "code" in error && error.code === "ENOENT")
+        return [];
+      throw error;
+    }
+  }
+
+  private directory(runId: string): string {
+    return join(this.layout.runs, runId, "interactions");
+  }
+}

packages/local-data/src/repositories/file-run-repository.ts

@@ -58,7 +58,9 @@ export class FileRunRepository implements RunRepository {
     if (conversationIds.length === 0) return false;
     const targets = new Set(conversationIds);
     return (await this.readAll()).some(
-      (run) => targets.has(run.conversationId) && run.status === "running",
+      (run) =>
+        targets.has(run.conversationId) &&
+        (run.status === "running" || run.status === "waiting_user"),
     );
   }
 

packages/model-deepseek/src/adapter/deepseek-model-adapter.ts

@@ -29,19 +29,85 @@ export class DeepSeekModelAdapter implements ModelPort {
     const response = await this.client.chat.completions.create(
       {
         model: request.model === "default" ? this.options.model : request.model,
-        messages: request.messages.map(toModelMessage),
+        messages: toModelMessages(request),
+        ...(request.tools
+          ? {
+              tools: request.tools.map((tool) => ({
+                type: "function" as const,
+                function: {
+                  name: tool.name,
+                  description: tool.description,
+                  parameters: tool.parameters,
+                },
+              })),
+            }
+          : {}),
         stream: true,
       },
       { signal },
     );
+    const toolCalls = new Map<
+      number,
+      { id: string; name: string; arguments: string }
+    >();
     for await (const chunk of response) {
-      const delta = chunk.choices[0]?.delta.content;
+      const choice = chunk.choices[0]?.delta;
+      const delta = choice?.content;
       if (delta) yield { type: "text.delta", delta };
+      for (const call of choice?.tool_calls ?? []) {
+        const current = toolCalls.get(call.index) ?? {
+          id: call.id ?? "",
+          name: call.function?.name ?? "",
+          arguments: "",
+        };
+        toolCalls.set(call.index, {
+          id: call.id ?? current.id,
+          name: call.function?.name ?? current.name,
+          arguments: current.arguments + (call.function?.arguments ?? ""),
+        });
+      }
+    }
+    for (const call of toolCalls.values()) {
+      yield {
+        type: "tool.requested",
+        toolCallId: call.id,
+        name: call.name,
+        arguments: call.arguments,
+      };
     }
     yield { type: "response.completed" };
   }
 }
 
+function toModelMessages(
+  request: ModelRequest,
+): OpenAI.Chat.Completions.ChatCompletionMessageParam[] {
+  const messages = request.messages.map(toModelMessage);
+  if (!request.continuation) return messages;
+  return [
+    ...messages,
+    {
+      role: "assistant",
+      content: null,
+      tool_calls: [
+        {
+          id: request.continuation.toolCallId,
+          type: "function",
+          function: {
+            name: request.continuation.toolName,
+            arguments: request.continuation.toolArguments,
+          },
+        },
+      ],
+    },
+    {
+      role: "tool",
+      tool_call_id: request.continuation.toolCallId,
+      content: request.continuation.result,
+    },
+  ];
+}
+
 function toModelMessage(
   message: Message,
 ): OpenAI.Chat.Completions.ChatCompletionMessageParam {

packages/web-contracts/src/events/run-event.ts

@@ -9,8 +9,12 @@ export const runEventSchema = z.object({
     "message.started",
     "message.delta",
     "message.completed",
+    "interaction.requested",
+    "interaction.resolved",
+    "interaction.cancelled",
     "run.completed",
     "run.failed",
+    "run.cancelled",
   ]),
   payload: z.record(z.string(), z.unknown()),
 });

packages/web-contracts/src/index.ts

@@ -17,3 +17,11 @@ export {
   messageSchema,
 } from "./responses/conversation";
 export { projectSchema, type ProjectResponse } from "./responses/project";
+export {
+  interactionAnswerSchema,
+  interactionSchema,
+  resolvedInteractionSchema,
+  type InteractionAnswerRequest,
+  type InteractionResponse,
+  type ResolvedInteractionResponse,
+} from "./responses/interaction";

packages/web-contracts/src/responses/interaction.ts

@@ -0,0 +1,48 @@
+import { z } from "zod";
+
+export const interactionAnswerSchema = z.discriminatedUnion("kind", [
+  z.object({
+    kind: z.literal("choice"),
+    selectedOptionIds: z.array(z.string().min(1)).max(10),
+  }),
+  z.object({ kind: z.literal("confirmation"), confirmed: z.boolean() }),
+  z.object({ kind: z.literal("free_text"), text: z.string().max(8_192) }),
+]);
+
+export const interactionSchema = z.object({
+  id: z.string(),
+  runId: z.string(),
+  conversationId: z.string(),
+  messageId: z.string(),
+  toolCallId: z.string(),
+  toolArguments: z.string(),
+  kind: z.enum([
+    "single_choice",
+    "multiple_choice",
+    "confirmation",
+    "free_text",
+  ]),
+  question: z.string(),
+  description: z.string().optional(),
+  options: z.array(z.object({ id: z.string(), label: z.string() })).optional(),
+  required: z.boolean(),
+  minSelections: z.number().int().optional(),
+  maxSelections: z.number().int().optional(),
+  status: z.enum(["pending", "resolved", "cancelled"]),
+  answer: interactionAnswerSchema.optional(),
+  createdAt: z.string(),
+  resolvedAt: z.string().optional(),
+  cancelledAt: z.string().optional(),
+});
+
+export const resolvedInteractionSchema = z.object({
+  interaction: interactionSchema,
+  resumed: z.boolean(),
+  resumeFromSequence: z.number().int().nonnegative(),
+});
+
+export type InteractionAnswerRequest = z.infer<typeof interactionAnswerSchema>;
+export type InteractionResponse = z.infer<typeof interactionSchema>;
+export type ResolvedInteractionResponse = z.infer<
+  typeof resolvedInteractionSchema
+>;