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/main/services/agent-run-loop.ts

@@ -19,6 +19,8 @@ export interface AgentRunLoopInput {
   externalTools?: ToolDefinition[];
   /** Messages that arrived mid-run, or null. */
   pollNewMessages?: () => string | null;
+  /** Called after each model turn the provider answered. */
+  onModelTurn?: () => void;
 }
 
 export interface AgentRunLoopResult {
@@ -57,6 +59,7 @@ export async function runAgentLoop(deps: AgentRunLoopDeps, input: AgentRunLoopIn
       tools: allTools,
     });
     lastRequestId = turn.requestId;
+    input.onModelTurn?.();
 
     if (turn.toolCalls.length === 0) {
       if (toolCallCount === 0 && !turn.text.trim()) {

src/main/services/chat-wake-context.ts

@@ -50,9 +50,44 @@ export function loadChatWakeContext(db: DatabaseSync, orgId: string, agentId: st
     spaceId: thread.space_id,
     history: [...(omitted > 0 ? [`(${omitted} earlier messages in this thread are not shown.)`] : []), ...history.map((m) => formatMessage(db, m))].join("\n"),
     fresh: fresh.map((m) => formatMessage(db, m)).join("\n"),
+    manifest: { history: history.map(readEntry), fresh: fresh.map(readEntry), omittedCount: omitted },
   };
 }
 
+/** A message as the model saw it: id plus edit-or-create time. */
+export interface ReadEntry {
+  id: string;
+  version: string;
+}
+
+/** What a run read: thread messages up front plus anything injected mid-run. */
+export interface RunContextManifest {
+  threadId: string | null;
+  history: ReadEntry[];
+  fresh: ReadEntry[];
+  omittedCount: number;
+  midRun: ReadEntry[];
+}
+
+/** Collects what the run read; commit() persists it once a model turn succeeds. */
+export function createRunContextRecorder(db: DatabaseSync, runId: string, chatContext: ChatContextBlock | null) {
+  const manifest: RunContextManifest = {
+    threadId: chatContext?.threadId ?? null,
+    history: chatContext?.manifest.history ?? [],
+    fresh: chatContext?.manifest.fresh ?? [],
+    omittedCount: chatContext?.manifest.omittedCount ?? 0,
+    midRun: [],
+  };
+  return {
+    addMidRun: (entries: ReadEntry[]) => { manifest.midRun.push(...entries); },
+    commit: () => { db.prepare("update task_runs set context_json = ? where id = ?").run(JSON.stringify(manifest), runId); },
+  };
+}
+
+function readEntry(m: ThreadMessageRow): ReadEntry {
+  return { id: m.id, version: m.edited_at ?? m.created_at };
+}
+
 function formatMessage(db: DatabaseSync, m: ThreadMessageRow): string {
   const who = m.sender_role ? `${m.sender_name} (${m.sender_type}, ${m.sender_role})` : `${m.sender_name} (${m.sender_type})`;
   const edited = m.edited_at ? ` (edited ${utcMinute(m.edited_at)})` : "";
@@ -66,7 +101,7 @@ function utcMinute(iso: string): string {
 /** Polls the threads this run is part of for messages from others. */
 export function createRunMessagePoller(
   db: DatabaseSync,
-  input: { orgId: string; agentId: string; sourceThreadId: string | null; runStartedAt: string },
+  input: { orgId: string; agentId: string; sourceThreadId: string | null; runStartedAt: string; onInjected: (entries: ReadEntry[]) => void },
 ): () => string | null {
   let watermark = input.runStartedAt;
   return () => {
@@ -81,6 +116,7 @@ export function createRunMessagePoller(
     `).all(input.orgId, watermark, input.agentId, input.sourceThreadId, input.orgId, input.agentId, input.runStartedAt) as unknown as ThreadMessageRow[];
     if (rows.length === 0) return null;
     watermark = rows[rows.length - 1].created_at;
+    input.onInjected(rows.map(readEntry));
     console.info(`[run-inbox] agent ${input.agentId}: ${rows.length} new message(s) injected mid-run`);
     return ["Messages that arrived while you were working (they may change what you should do):", ...rows.map((m) => formatMessage(db, m))].join("\n");
   };

src/main/services/task-execution-service.ts

@@ -24,7 +24,7 @@ import {
   type WorkspaceRow,
 } from "./task-prompts";
 import { renderTaskHandoff } from "./agent-task-handoff";
-import { createRunMessagePoller, loadChatWakeContext } from "./chat-wake-context";
+import { createRunContextRecorder, createRunMessagePoller, loadChatWakeContext } from "./chat-wake-context";
 import { runningWorkspaceWriter } from "./workspace-write-lock";
 import { loadComposioTools } from "./composio/composio-tool-bridge";
 import { connectorDisplayName } from "./composio/connector-brands";
@@ -159,6 +159,7 @@ export class TaskExecutionService {
       // Watermark for reply delivery and mid-run message polling.
       const runStartedAt = new Date().toISOString();
       const chatContext = loadChatWakeContext(this.db, orgId, agent.id, isolation.secretScopeJson);
+      const contextRecorder = createRunContextRecorder(this.db, runId, chatContext);
       const toolContext: AgentToolContext = {
         orgId,
         agent: { id: agent.id, modelProviderId: agent.model_provider_id, modelId: agent.model_id },
@@ -206,7 +207,8 @@ export class TaskExecutionService {
           }),
           toolContext,
           externalTools,
-          pollNewMessages: createRunMessagePoller(this.db, { orgId, agentId: agent.id, sourceThreadId: chatContext?.threadId ?? null, runStartedAt }),
+          onModelTurn: contextRecorder.commit,
+          pollNewMessages: createRunMessagePoller(this.db, { orgId, onInjected: contextRecorder.addMidRun, agentId: agent.id, sourceThreadId: chatContext?.threadId ?? null, runStartedAt }),
         },
       );
       providerRequestId = result.lastRequestId;

src/main/services/task-prompts.ts

@@ -76,6 +76,7 @@ export interface ChatContextBlock {
   history: string;
   /** Messages after it: what this run answers. */
   fresh: string;
+  manifest: { history: Array<{ id: string; version: string }>; fresh: Array<{ id: string; version: string }>; omittedCount: number };
 }
 
 export interface AgentInstructionContext {