diff --git a/CHANGELOG.md b/CHANGELOG.md
index 696b50df1b4..b8d18806f79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -58,6 +58,7 @@ Docs: https://docs.openclaw.ai
 - Hooks/doctor: warn when `hooks.transformsDir` points outside the canonical hooks transform directory, so invalid workspace skill paths get a direct recovery hint before the Gateway crash-loops. Fixes #75853. Thanks @midobk.
 - Proxy/audio: convert standard `FormData` bodies before proxy-backed undici fetches, so audio transcription and multipart uploads no longer send `[object FormData]` when `HTTP_PROXY` or `HTTPS_PROXY` is configured. Fixes #48554. Thanks @dco5.
 - Discord: allow explicitly configured ack reactions in tool-only guild channels while keeping automatic lifecycle/status reactions suppressed. Fixes #74922. Thanks @samvilian and @BlueBirdBack.
+- Discord: enable session-backed A2A announce target lookup so `sessions_send` uses the target session's `deliveryContext.accountId` or `lastAccountId` instead of falling back to the default bot in multi-account setups. Fixes #42652; refs #51626 and #44773; supersedes #73975. Thanks @irchelper, @dpalfox, and @Lanfei.
 - Discord: treat abort-time Carbon reconnect-exhausted events as expected shutdown during stale-socket restarts, so health-monitor restarts no longer reject the monitor lifecycle. Carries forward #58216; supersedes #73949. Thanks @Perttulands.
 - Discord/native commands: return an explicit warning when slash command dispatch or direct plugin execution produces no visible reply instead of a success-style completion ack. Fixes #58986; supersedes #62057. Thanks @jb510.
 - Discord: keep typing indicators alive during long tool runs and auto-compaction while keepalive ticks continue, so active sessions do not appear stalled before the final reply. Thanks @Squirbie.
diff --git a/extensions/discord/package.json b/extensions/discord/package.json
index f7c06f91565..3ff11fb2b27 100644
--- a/extensions/discord/package.json
+++ b/extensions/discord/package.json
@@ -43,6 +43,7 @@
       "blurb": "very well supported right now.",
       "systemImage": "bubble.left.and.bubble.right",
       "markdownCapable": true,
+      "preferSessionLookupForAnnounceTarget": true,
       "commands": {
         "nativeCommandsAutoEnabled": true,
         "nativeSkillsAutoEnabled": true
diff --git a/extensions/discord/src/channel-api.ts b/extensions/discord/src/channel-api.ts
index 452b8fa068d..1156ff45c34 100644
--- a/extensions/discord/src/channel-api.ts
+++ b/extensions/discord/src/channel-api.ts
@@ -18,6 +18,7 @@ const DISCORD_CHANNEL_META = {
   blurb: "very well supported right now.",
   systemImage: "bubble.left.and.bubble.right",
   markdownCapable: true,
+  preferSessionLookupForAnnounceTarget: true,
 } as const;
 
 export function getChatChannelMeta(id: string) {
diff --git a/extensions/discord/src/shared.test.ts b/extensions/discord/src/shared.test.ts
index 93b6ae37b40..0e2209dc2e4 100644
--- a/extensions/discord/src/shared.test.ts
+++ b/extensions/discord/src/shared.test.ts
@@ -32,6 +32,12 @@ describe("createDiscordPluginBase", () => {
     expect(plugin.security?.collectAuditFindings).toBeTypeOf("function");
   });
 
+  it("hydrates announce delivery targets from stored session routing", () => {
+    const plugin = createDiscordPluginBase({ setup: {} as never });
+
+    expect(plugin.meta.preferSessionLookupForAnnounceTarget).toBe(true);
+  });
+
   it("reports duplicate-token accounts as disabled to gateway startup", () => {
     vi.stubEnv("DISCORD_BOT_TOKEN", "same-token");
     const plugin = createDiscordPluginBase({ setup: {} as never });
diff --git a/src/agents/tools/sessions-send-tool.a2a.test.ts b/src/agents/tools/sessions-send-tool.a2a.test.ts
index a700f704766..310ffeabf22 100644
--- a/src/agents/tools/sessions-send-tool.a2a.test.ts
+++ b/src/agents/tools/sessions-send-tool.a2a.test.ts
@@ -3,8 +3,15 @@ import type { CallGatewayOptions } from "../../gateway/call.js";
 import { setActivePluginRegistry } from "../../plugins/runtime.js";
 import { createSessionConversationTestRegistry } from "../../test-utils/session-conversation-registry.js";
 import { runAgentStep } from "./agent-step.js";
+import type { SessionListRow } from "./sessions-helpers.js";
 import { runSessionsSendA2AFlow, __testing } from "./sessions-send-tool.a2a.js";
 
+const callGatewayMock = vi.hoisted(() => vi.fn());
+
+vi.mock("../../gateway/call.js", () => ({
+  callGateway: (opts: unknown) => callGatewayMock(opts),
+}));
+
 vi.mock("../run-wait.js", () => ({
   waitForAgentRun: vi.fn().mockResolvedValue({ status: "ok" }),
   readLatestAssistantReply: vi.fn().mockResolvedValue("Test announce reply"),
@@ -16,17 +23,25 @@ vi.mock("./agent-step.js", () => ({
 
 describe("runSessionsSendA2AFlow announce delivery", () => {
   let gatewayCalls: CallGatewayOptions[];
+  let sessionListRows: SessionListRow[];
 
   beforeEach(() => {
     setActivePluginRegistry(createSessionConversationTestRegistry());
     gatewayCalls = [];
+    sessionListRows = [];
+    callGatewayMock.mockReset();
+    const callGateway = async <T = Record<string, unknown>>(opts: CallGatewayOptions) => {
+      gatewayCalls.push(opts);
+      if (opts.method === "sessions.list") {
+        return { sessions: sessionListRows } as T;
+      }
+      return {} as T;
+    };
+    callGatewayMock.mockImplementation(callGateway);
     vi.clearAllMocks();
     vi.mocked(runAgentStep).mockResolvedValue("Test announce reply");
     __testing.setDepsForTest({
-      callGateway: async <T = Record<string, unknown>>(opts: CallGatewayOptions) => {
-        gatewayCalls.push(opts);
-        return {} as T;
-      },
+      callGateway,
     });
   });
 
@@ -70,6 +85,55 @@ describe("runSessionsSendA2AFlow announce delivery", () => {
     expect(sendParams.threadId).toBeUndefined();
   });
 
+  it.each([
+    {
+      source: "deliveryContext.accountId",
+      accountId: "thinker",
+      session: {
+        key: "agent:main:discord:channel:target-room",
+        kind: "group",
+        channel: "discord",
+        deliveryContext: {
+          channel: "discord",
+          to: "channel:target-room",
+          accountId: "thinker",
+        },
+      } satisfies SessionListRow,
+    },
+    {
+      source: "lastAccountId",
+      accountId: "scout",
+      session: {
+        key: "agent:main:discord:channel:target-room",
+        kind: "group",
+        channel: "discord",
+        lastChannel: "discord",
+        lastTo: "channel:target-room",
+        lastAccountId: "scout",
+      } satisfies SessionListRow,
+    },
+  ])("uses Discord session $source for announce accountId", async ({ accountId, session }) => {
+    sessionListRows = [session];
+
+    await runSessionsSendA2AFlow({
+      targetSessionKey: session.key,
+      displayKey: session.key,
+      message: "Test message",
+      announceTimeoutMs: 10_000,
+      maxPingPongTurns: 0,
+      roundOneReply: "Worker completed successfully",
+    });
+
+    expect(gatewayCalls.some((call) => call.method === "sessions.list")).toBe(true);
+    const sendCall = gatewayCalls.find((call) => call.method === "send");
+    expect(sendCall).toBeDefined();
+    expect(sendCall?.params).toMatchObject({
+      channel: "discord",
+      to: "channel:target-room",
+      accountId,
+    });
+  });
+
   it.each(["NO_REPLY", "HEARTBEAT_OK", "ANNOUNCE_SKIP", "REPLY_SKIP"])(
     "does not re-inject exact control reply %s into agent-to-agent flow",
     async (roundOneReply) => {
diff --git a/src/test-utils/session-conversation-registry.ts b/src/test-utils/session-conversation-registry.ts
index c691dc75009..376a0339b88 100644
--- a/src/test-utils/session-conversation-registry.ts
+++ b/src/test-utils/session-conversation-registry.ts
@@ -62,6 +62,7 @@ export function createSessionConversationTestRegistry() {
           selectionLabel: "Discord",
           docsPath: "/channels/discord",
           blurb: "Discord test stub.",
+          preferSessionLookupForAnnounceTarget: true,
         },
         capabilities: { chatTypes: ["direct", "channel", "thread"] },
         messaging: {