diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d378bea3f6..40e9f6e21b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -67,6 +67,7 @@ Docs: https://docs.openclaw.ai
 - Plugins/CLI: collect root-help plugin descriptors through a dedicated non-activating CLI metadata path so enabled plugins keep validated config semantics without triggering runtime-only plugin registration work, while preserving runtime CLI command registration for legacy channel plugins that still wire commands from full registration. (#57294) thanks @gumadeiras.
 - Anthropic/OAuth: inject `/fast` `service_tier` hints for direct `sk-ant-oat-*` requests so OAuth-authenticated Anthropic runs stop missing the same overload-routing signal as API-key traffic. Fixes #55758. Thanks @Cypherm and @vincentkoc.
 - Docs/anchors: fix broken English docs links and make Mint anchor audits run against the English-source docs tree. (#57039) thanks @velvet-shark.
+- Cron/announce: preserve all deliverable text payloads for announce mode instead of collapsing to the last chunk, so multi-line cron reports deliver in full to Telegram forum topics.
 
 ## 2026.3.28
 
diff --git a/src/cron/isolated-agent.direct-delivery-forum-topics.test.ts b/src/cron/isolated-agent.direct-delivery-forum-topics.test.ts
index 0ee64e789fc..09ef55f4276 100644
--- a/src/cron/isolated-agent.direct-delivery-forum-topics.test.ts
+++ b/src/cron/isolated-agent.direct-delivery-forum-topics.test.ts
@@ -39,6 +39,42 @@ describe("runCronIsolatedAgentTurn forum topic delivery", () => {
     });
   });
 
+  it("delivers all successful text chunks to forum-topic telegram targets", async () => {
+    await withTempCronHome(async (home) => {
+      const storePath = await writeSessionStore(home, { lastProvider: "webchat", lastTo: "" });
+      const deps = createCliDeps();
+      mockAgentPayloads([
+        { text: "section 1" },
+        { text: "temporary error", isError: true },
+        { text: "section 2" },
+      ]);
+
+      const res = await runTelegramAnnounceTurn({
+        home,
+        storePath,
+        deps,
+        delivery: { mode: "announce", channel: "telegram", to: "123:topic:42" },
+      });
+
+      expect(res.status).toBe("ok");
+      expect(res.delivered).toBe(true);
+      expect(runSubagentAnnounceFlow).not.toHaveBeenCalled();
+      expect(deps.sendMessageTelegram).toHaveBeenCalledTimes(2);
+      expect(deps.sendMessageTelegram).toHaveBeenNthCalledWith(
+        1,
+        "123",
+        "section 1",
+        expect.objectContaining({ messageThreadId: 42 }),
+      );
+      expect(deps.sendMessageTelegram).toHaveBeenNthCalledWith(
+        2,
+        "123",
+        "section 2",
+        expect.objectContaining({ messageThreadId: 42 }),
+      );
+    });
+  });
+
   it("routes plain telegram targets through the correct delivery path", async () => {
     await withTempCronHome(async (home) => {
       const storePath = await writeSessionStore(home, { lastProvider: "webchat", lastTo: "" });
diff --git a/src/cron/isolated-agent.helpers.test.ts b/src/cron/isolated-agent.helpers.test.ts
index 833f0a3e51c..9a58d7ca2b4 100644
--- a/src/cron/isolated-agent.helpers.test.ts
+++ b/src/cron/isolated-agent.helpers.test.ts
@@ -59,4 +59,41 @@ describe("resolveCronPayloadOutcome", () => {
 
     expect(String(result.summary ?? "")).toMatch(/…$/);
   });
+
+  it("preserves all successful deliverable payloads for announce delivery", () => {
+    const result = resolveCronPayloadOutcome({
+      payloads: [
+        { text: "line 1" },
+        { text: "temporary error", isError: true },
+        { text: "line 2" },
+      ],
+    });
+
+    expect(result.deliveryPayloads).toEqual([{ text: "line 1" }, { text: "line 2" }]);
+    expect(result.deliveryPayload).toEqual({ text: "line 2" });
+  });
+
+  it("keeps structured-content detection scoped to the last delivery payload", () => {
+    const result = resolveCronPayloadOutcome({
+      payloads: [{ mediaUrl: "https://example.com/report.png" }, { text: "final text" }],
+    });
+
+    expect(result.deliveryPayloads).toEqual([
+      { mediaUrl: "https://example.com/report.png" },
+      { text: "final text" },
+    ]);
+    expect(result.deliveryPayloadHasStructuredContent).toBe(false);
+  });
+
+  it("returns only the last error payload when all payloads are errors", () => {
+    const result = resolveCronPayloadOutcome({
+      payloads: [
+        { text: "first error", isError: true },
+        { text: "last error", isError: true },
+      ],
+    });
+
+    expect(result.deliveryPayloads).toEqual([{ text: "last error", isError: true }]);
+    expect(result.deliveryPayload).toEqual({ text: "last error", isError: true });
+  });
 });
diff --git a/src/cron/isolated-agent.skips-delivery-without-whatsapp-recipient-besteffortdeliver-true.test.ts b/src/cron/isolated-agent.skips-delivery-without-whatsapp-recipient-besteffortdeliver-true.test.ts
index 77e8ba0e206..63a518b461b 100644
--- a/src/cron/isolated-agent.skips-delivery-without-whatsapp-recipient-besteffortdeliver-true.test.ts
+++ b/src/cron/isolated-agent.skips-delivery-without-whatsapp-recipient-besteffortdeliver-true.test.ts
@@ -244,7 +244,7 @@ async function assertExplicitTelegramTargetDelivery(params: {
   storePath: string;
   deps: CliDeps;
   payloads: Array<Record<string, unknown>>;
-  expectedText: string;
+  expectedTexts: string[];
 }): Promise<void> {
   mockAgentPayloads(params.payloads);
   const res = await runExplicitTelegramAnnounceTurn({
@@ -255,10 +255,22 @@ async function assertExplicitTelegramTargetDelivery(params: {
 
   expectDeliveredOk(res);
   expect(runSubagentAnnounceFlow).not.toHaveBeenCalled();
-  expectDirectTelegramDelivery(params.deps, {
-    chatId: "123",
-    text: params.expectedText,
-  });
+  if (params.expectedTexts.length === 1) {
+    expectDirectTelegramDelivery(params.deps, {
+      chatId: "123",
+      text: params.expectedTexts[0] ?? "",
+    });
+    return;
+  }
+  expect(params.deps.sendMessageTelegram).toHaveBeenCalledTimes(params.expectedTexts.length);
+  for (const [index, text] of params.expectedTexts.entries()) {
+    expect(params.deps.sendMessageTelegram).toHaveBeenNthCalledWith(
+      index + 1,
+      "123",
+      text,
+      expect.objectContaining({ cfg: expect.any(Object) }),
+    );
+  }
 }
 
 describe("runCronIsolatedAgentTurn", () => {
@@ -274,19 +286,19 @@ describe("runCronIsolatedAgentTurn", () => {
         storePath,
         deps,
         payloads: [{ text: "hello from cron" }],
-        expectedText: "hello from cron",
+        expectedTexts: ["hello from cron"],
       });
     });
   });
 
-  it("delivers explicit targets with final-payload text", async () => {
+  it("delivers explicit targets with all successful payload text", async () => {
     await withTelegramAnnounceFixture(async ({ home, storePath, deps }) => {
       await assertExplicitTelegramTargetDelivery({
         home,
         storePath,
         deps,
         payloads: [{ text: "Working on it..." }, { text: "Final weather summary" }],
-        expectedText: "Final weather summary",
+        expectedTexts: ["Working on it...", "Final weather summary"],
       });
     });
   });
diff --git a/src/cron/isolated-agent/helpers.test.ts b/src/cron/isolated-agent/helpers.test.ts
index 36512576492..58602fd8a07 100644
--- a/src/cron/isolated-agent/helpers.test.ts
+++ b/src/cron/isolated-agent/helpers.test.ts
@@ -1,6 +1,7 @@
 import { describe, expect, it } from "vitest";
 import {
   isHeartbeatOnlyResponse,
+  pickDeliverablePayloads,
   pickLastDeliverablePayload,
   pickLastNonEmptyTextFromPayloads,
   pickSummaryFromPayloads,
@@ -86,6 +87,27 @@ describe("pickLastDeliverablePayload", () => {
   });
 });
 
+describe("pickDeliverablePayloads", () => {
+  it("preserves all successful deliverable payloads", () => {
+    const payloads = [
+      { text: "line 1" },
+      { text: "temporary error", isError: true as const },
+      { text: "line 2" },
+    ];
+
+    expect(pickDeliverablePayloads(payloads)).toEqual([{ text: "line 1" }, { text: "line 2" }]);
+  });
+
+  it("returns only the last error payload when all payloads are errors", () => {
+    const payloads = [
+      { text: "first error", isError: true as const },
+      { text: "last error", isError: true as const },
+    ];
+
+    expect(pickDeliverablePayloads(payloads)).toEqual([{ text: "last error", isError: true }]);
+  });
+});
+
 describe("isHeartbeatOnlyResponse", () => {
   const ACK_MAX = 300;
 
diff --git a/src/cron/isolated-agent/helpers.ts b/src/cron/isolated-agent/helpers.ts
index 4b76b7d27ec..0e72210a6e1 100644
--- a/src/cron/isolated-agent/helpers.ts
+++ b/src/cron/isolated-agent/helpers.ts
@@ -71,28 +71,43 @@ export function pickLastNonEmptyTextFromPayloads(
   return undefined;
 }
 
+function isDeliverablePayload(payload: DeliveryPayload | null | undefined): boolean {
+  if (!payload) return false;
+  const hasInteractive = (payload.interactive?.blocks?.length ?? 0) > 0;
+  const hasChannelData = Object.keys(payload.channelData ?? {}).length > 0;
+  return (
+    hasOutboundReplyContent(payload, { trimText: true }) || hasInteractive || hasChannelData
+  );
+}
+
 export function pickLastDeliverablePayload(payloads: DeliveryPayload[]) {
-  const isDeliverable = (p: DeliveryPayload) => {
-    const hasInteractive = (p?.interactive?.blocks?.length ?? 0) > 0;
-    const hasChannelData = Object.keys(p?.channelData ?? {}).length > 0;
-    return hasOutboundReplyContent(p, { trimText: true }) || hasInteractive || hasChannelData;
-  };
   for (let i = payloads.length - 1; i >= 0; i--) {
     if (payloads[i]?.isError) {
       continue;
     }
-    if (isDeliverable(payloads[i])) {
+    if (isDeliverablePayload(payloads[i])) {
       return payloads[i];
     }
   }
   for (let i = payloads.length - 1; i >= 0; i--) {
-    if (isDeliverable(payloads[i])) {
+    if (isDeliverablePayload(payloads[i])) {
       return payloads[i];
     }
   }
   return undefined;
 }
 
+export function pickDeliverablePayloads(payloads: DeliveryPayload[]): DeliveryPayload[] {
+  const successfulDeliverablePayloads = payloads.filter(
+    (payload) => payload != null && payload.isError !== true && isDeliverablePayload(payload),
+  );
+  if (successfulDeliverablePayloads.length > 0) {
+    return successfulDeliverablePayloads;
+  }
+  const lastDeliverablePayload = pickLastDeliverablePayload(payloads);
+  return lastDeliverablePayload ? [lastDeliverablePayload] : [];
+}
+
 /**
  * Check if delivery should be skipped because the agent signaled no user-visible update.
  * Returns true when any payload is a heartbeat ack token and no payload contains media.
@@ -115,9 +130,10 @@ export function resolveCronPayloadOutcome(params: {
   const outputText = pickLastNonEmptyTextFromPayloads(params.payloads);
   const synthesizedText = outputText?.trim() || summary?.trim() || undefined;
   const deliveryPayload = pickLastDeliverablePayload(params.payloads);
-  const deliveryPayloads =
-    deliveryPayload !== undefined
-      ? [deliveryPayload]
+  const selectedDeliveryPayloads = pickDeliverablePayloads(params.payloads);
+  const resolvedDeliveryPayloads =
+    selectedDeliveryPayloads.length > 0
+      ? selectedDeliveryPayloads
       : synthesizedText
         ? [{ text: synthesizedText }]
         : [];
@@ -146,7 +162,7 @@ export function resolveCronPayloadOutcome(params: {
     outputText,
     synthesizedText,
     deliveryPayload,
-    deliveryPayloads,
+    deliveryPayloads: resolvedDeliveryPayloads,
     deliveryPayloadHasStructuredContent,
     hasFatalErrorPayload,
     embeddedRunError: hasFatalErrorPayload