Q15: show which messages each agent actually read

Runs record a context manifest once a model turn succeeds; the chat
marks each human message with the agents that read its current version.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/renderer/src/i18n/zh.ts

@@ -27,6 +27,7 @@ export const zh: Record<string, string> = {
   "Advance": "推进",
   "Advanced": "高级",
   "Integrations": "集成密钥",
+  "Read by {names}": "已读：{names}",
   "Keys are stored on this device, encrypted by the operating system, and shared by every company.": "密钥保存在本机，由操作系统加密，所有公司共用。",
   "Composio API key": "Composio API 密钥",
   "Powers the Connectors page and agent connector tools. Create one at platform.composio.dev.": "用于连接器页面和 Agent 的连接器工具。在 platform.composio.dev 创建。",

src/renderer/src/pages/ChatPage.tsx

@@ -8,6 +8,7 @@ import {
   buildConversations,
   collectParticipants,
   filterApprovalsForSpace,
+  messageReaders,
 } from "./chat/chat-helpers";
 import type { PageProps } from "./types";
 import { activeOrgId, requireActiveEmployee } from "./types";
@@ -27,6 +28,10 @@ export function ChatPage({ snapshot, actions }: PageProps) {
   const agents = useMemo(() => snapshot.agents.filter((item) => item.orgId === orgId), [snapshot.agents, orgId]);
   const files = useMemo(() => snapshot.files.filter((item) => item.orgId === orgId), [snapshot.files, orgId]);
   const messagesAll = useMemo(() => snapshot.chatMessages.filter((m) => m.orgId === orgId), [snapshot.chatMessages, orgId]);
+  const readersByMessage = useMemo(
+    () => messageReaders(snapshot.taskRuns.filter((run) => run.orgId === orgId), agents, messagesAll),
+    [snapshot.taskRuns, orgId, agents, messagesAll],
+  );
   const messageIds = useMemo(() => new Set(messagesAll.map((message) => message.id)), [messagesAll]);
   const mentionsAll = useMemo(
     () => snapshot.chatMentions.filter((mention) => messageIds.has(mention.messageId)),
@@ -202,7 +207,7 @@ export function ChatPage({ snapshot, actions }: PageProps) {
         mentions={mentionsAll}
         slashInvocations={slashInvocationsAll}
         files={files}
-        context={{ employees, agents }}
+        context={{ employees, agents, readersByMessage }}
         attachmentFileId={attachmentFileId}
         currentEmployeeId={employee.id}
         onAttachmentChange={setAttachmentFileId}

src/renderer/src/pages/chat/ChatMessageRow.tsx

@@ -41,6 +41,7 @@ export function ChatMessageRow({
   const messageFiles = deleted ? [] : messageAttachments(message.id, attachments, files);
   const messageMentions = mentions.filter((mention) => mention.messageId === message.id);
   const slashInvocation = deleted ? null : slashInvocations.find((invocation) => invocation.messageId === message.id) ?? null;
+  const readers = bot || deleted ? [] : context.readersByMessage.get(message.id) ?? [];
   const submitEdit = (event: FormEvent<HTMLFormElement>) => {
     event.preventDefault();
     const next = new FormData(event.currentTarget).get("body");
@@ -99,6 +100,11 @@ export function ChatMessageRow({
             })}
           </div>
         )}
+        {readers.length > 0 && (
+          <div style={{ fontSize: 12, color: "var(--text-3)", marginTop: 4 }}>
+            {t("Read by {names}", { names: readers.join(", ") })}
+          </div>
+        )}
       </div>
     </div>
   );

src/renderer/src/pages/chat/chat-helpers.ts

@@ -8,15 +8,38 @@ import type {
   ChatSpaceRecord,
   EmployeeRecord,
   FileObjectRecord,
+  TaskRunRecord,
 } from "../../../../shared/domain";
 import { t } from "../../i18n/i18n";
 
 export interface MessageContext {
   employees: EmployeeRecord[];
   agents: AgentRecord[];
+  /** Agent names whose runs read each message. */
+  readersByMessage: Map<string, string[]>;
 }
 
-export function senderName(message: ChatMessageRecord, context: MessageContext): string {
+/** Which agents' runs read the current version of each message. */
+export function messageReaders(taskRuns: TaskRunRecord[], agents: AgentRecord[], messages: ChatMessageRecord[]): Map<string, string[]> {
+  const currentVersion = new Map(messages.map((message) => [message.id, message.editedAt ?? message.createdAt]));
+  const readers = new Map<string, string[]>();
+  for (const run of taskRuns) {
+    if (!run.contextJson || !run.agentId) continue;
+    const agent = agents.find((item) => item.id === run.agentId);
+    if (!agent) continue;
+    type Entry = { id: string; version: string };
+    const manifest = JSON.parse(run.contextJson) as { history: Entry[]; fresh: Entry[]; midRun: Entry[] };
+    for (const entry of [...manifest.history, ...manifest.fresh, ...manifest.midRun]) {
+      if (currentVersion.get(entry.id) !== entry.version) continue;
+      const names = readers.get(entry.id) ?? [];
+      if (!names.includes(agent.name)) names.push(agent.name);
+      readers.set(entry.id, names);
+    }
+  }
+  return readers;
+}
+
+export function senderName(message: ChatMessageRecord, context: Pick<MessageContext, "employees" | "agents">): string {
   // A message whose principal no longer resolves must degrade to a visible
   // placeholder, not throw: one orphaned row would otherwise blank the whole
   // Messages page mid-render.
@@ -128,7 +151,7 @@ export function buildConversations(input: {
     if (group) group.push(membership);
     else membersBySpace.set(membership.spaceId, [membership]);
   }
-  const context: MessageContext = { employees: input.employees, agents: input.agents };
+  const context = { employees: input.employees, agents: input.agents };
 
   const items = input.spaces.map((space) => {
     const last = lastBySpace.get(space.id) ?? null;