diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37fb877eb84..31d34fb8a6e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ Docs: https://docs.openclaw.ai
 
 - Providers/Cloudflare AI Gateway: strip assistant prefill turns from Anthropic Messages payloads when thinking is enabled, so Claude requests through Cloudflare AI Gateway no longer fail Anthropic conversation-ending validation. Fixes #72905; carries forward #73005. Thanks @AaronFaby and @sahilsatralkar.
 - Channels/sessions: prevent guarded inbound session recording from creating route-only phantom sessions while still allowing last-route updates for sessions that already exist. Carries forward #73009. Thanks @jzakirov.
+- Cron: accept `delivery.threadId` in Gateway cron add/update schemas so scheduled announce delivery can target Telegram forum topics and other threaded channel destinations through the documented delivery path. Fixes #73017. Thanks @coachsootz.
 - Plugins/runtime deps: stage bundled plugin dependencies imported by mirrored root dist chunks, so packaged memory and status commands do not miss `chokidar` or similar root-chunk dependencies after update. Fixes #72882 and #72970; carries forward #72992. Thanks @shrimpy8, @colin-chang, and @Schnup03.
 - Agents/runtime context: deliver hidden runtime context through prompt-local system context while keeping the transcript-only custom entry out of provider user turns, and strip stale copied runtime-context prefaces from user-facing replies. Fixes #72386; carries forward #72969. Thanks @jhsmith409.
 - Channels/Telegram: skip the optional webhook-info API call during polling-mode status checks and startup bot-label probes so long-polling setups avoid an unnecessary Telegram round trip. Carries forward #72990. Thanks @danielgruneberg.
diff --git a/docs/automation/cron-jobs.md b/docs/automation/cron-jobs.md
index 8cf035b86ad..ca3f931cde9 100644
--- a/docs/automation/cron-jobs.md
+++ b/docs/automation/cron-jobs.md
@@ -150,7 +150,7 @@ If an isolated run hits a live model-switch handoff, cron retries with the switc
 | `webhook`  | POST finished event payload to a URL                                |
 | `none`     | No runner fallback delivery                                         |
 
-Use `--announce --channel telegram --to "-1001234567890"` for channel delivery. For Telegram forum topics, use `-1001234567890:topic:123`. Slack/Discord/Mattermost targets should use explicit prefixes (`channel:<id>`, `user:<id>`). Matrix room IDs are case-sensitive; use the exact room ID or `room:!room:server` form from Matrix.
+Use `--announce --channel telegram --to "-1001234567890"` for channel delivery. For Telegram forum topics, use `-1001234567890:topic:123`; direct RPC/config callers may also pass `delivery.threadId` as a string or number. Slack/Discord/Mattermost targets should use explicit prefixes (`channel:<id>`, `user:<id>`). Matrix room IDs are case-sensitive; use the exact room ID or `room:!room:server` form from Matrix.
 
 For isolated jobs, chat delivery is shared. If a chat route is available, the agent can use the `message` tool even when the job uses `--no-deliver`. If the agent sends to the configured/current target, OpenClaw skips the fallback announce. Otherwise `announce`, `webhook`, and `none` only control what the runner does with the final reply after the agent turn.
 
diff --git a/src/agents/tools/cron-tool.test.ts b/src/agents/tools/cron-tool.test.ts
index 38194e00c37..9b615dcd2ea 100644
--- a/src/agents/tools/cron-tool.test.ts
+++ b/src/agents/tools/cron-tool.test.ts
@@ -15,6 +15,12 @@ vi.mock("../agent-scope.js", async () => {
 import { createCronTool } from "./cron-tool.js";
 
 describe("cron tool", () => {
+  type SchemaLike = {
+    anyOf?: Array<{ type?: string }>;
+    description?: string;
+    properties?: Record<string, SchemaLike>;
+  };
+
   type TestDelivery = {
     mode?: string;
     channel?: string;
@@ -145,6 +151,18 @@ describe("cron tool", () => {
     );
   });
 
+  it("advertises delivery threadId in the tool schema", () => {
+    const tool = createTestCronTool();
+    const parameters = tool.parameters as SchemaLike;
+    const jobThreadId = parameters.properties?.job?.properties?.delivery?.properties?.threadId;
+    const patchThreadId = parameters.properties?.patch?.properties?.delivery?.properties?.threadId;
+
+    for (const threadId of [jobThreadId, patchThreadId]) {
+      expect(threadId?.description).toContain("Thread/topic id");
+      expect(threadId?.anyOf?.map((entry) => entry.type)).toEqual(["string", "number"]);
+    }
+  });
+
   it.each([
     [
       "update",
diff --git a/src/agents/tools/cron-tool.ts b/src/agents/tools/cron-tool.ts
index 325a9990506..ef67bb49658 100644
--- a/src/agents/tools/cron-tool.ts
+++ b/src/agents/tools/cron-tool.ts
@@ -183,6 +183,11 @@ const CronDeliverySchema = Type.Optional(
       mode: optionalStringEnum(CRON_DELIVERY_MODES, { description: "Delivery mode" }),
       channel: Type.Optional(Type.String({ description: "Delivery channel" })),
       to: Type.Optional(Type.String({ description: "Delivery target" })),
+      threadId: Type.Optional(
+        Type.Union([Type.String(), Type.Number()], {
+          description: "Thread/topic id for channels that support threaded delivery",
+        }),
+      ),
       bestEffort: Type.Optional(Type.Boolean()),
       accountId: Type.Optional(Type.String({ description: "Account target for delivery" })),
       failureDestination: Type.Optional(
@@ -576,9 +581,10 @@ PAYLOAD TYPES (payload.kind):
   { "kind": "agentTurn", "message": "<prompt>", "model": "<optional>", "thinking": "<optional>", "timeoutSeconds": <optional, 0 means no timeout> }
 
 DELIVERY (top-level):
-  { "mode": "none|announce|webhook", "channel": "<optional>", "to": "<optional>", "bestEffort": <optional-bool> }
+  { "mode": "none|announce|webhook", "channel": "<optional>", "to": "<optional>", "threadId": "<optional>", "bestEffort": <optional-bool> }
   - Default for isolated agentTurn jobs (when delivery omitted): "announce"
   - announce: send to chat channel (optional channel/to target)
+  - threadId: chat thread/topic id for channels that support threaded delivery
   - webhook: send finished-run event as HTTP POST to delivery.to (URL required)
   - If the task needs to send to a specific chat/recipient, set announce delivery.channel/to; do not call messaging tools inside the run.
 
diff --git a/src/gateway/protocol/schema/cron.ts b/src/gateway/protocol/schema/cron.ts
index 8b7cb3dc5f8..9411f61f1ba 100644
--- a/src/gateway/protocol/schema/cron.ts
+++ b/src/gateway/protocol/schema/cron.ts
@@ -183,6 +183,7 @@ export const CronFailureDestinationSchema = Type.Object(
 
 const CronDeliverySharedProperties = {
   channel: Type.Optional(Type.Union([Type.Literal("last"), NonEmptyString])),
+  threadId: Type.Optional(Type.Union([Type.String(), Type.Number()])),
   accountId: Type.Optional(NonEmptyString),
   bestEffort: Type.Optional(Type.Boolean()),
   failureDestination: Type.Optional(CronFailureDestinationSchema),
diff --git a/src/gateway/server-methods/cron.validation.test.ts b/src/gateway/server-methods/cron.validation.test.ts
index ea379fefd84..9a0922a7abc 100644
--- a/src/gateway/server-methods/cron.validation.test.ts
+++ b/src/gateway/server-methods/cron.validation.test.ts
@@ -82,6 +82,93 @@ describe("cron method validation", () => {
     getRuntimeConfig.mockReset().mockReturnValue({} as OpenClawConfig);
   });
 
+  it("accepts threadId on announce delivery add params", async () => {
+    getRuntimeConfig.mockReturnValue({
+      channels: {
+        telegram: {
+          botToken: "telegram-token",
+        },
+      },
+      plugins: {
+        entries: {
+          telegram: { enabled: true },
+        },
+      },
+    } as OpenClawConfig);
+
+    const { context, respond } = await invokeCronAdd({
+      name: "topic announce add",
+      enabled: true,
+      schedule: { kind: "every", everyMs: 60_000 },
+      sessionTarget: "isolated",
+      wakeMode: "next-heartbeat",
+      payload: { kind: "agentTurn", message: "hello" },
+      delivery: {
+        mode: "announce",
+        channel: "telegram",
+        to: "-1001234567890",
+        threadId: 123,
+      },
+    });
+
+    expect(context.cron.add).toHaveBeenCalledWith(
+      expect.objectContaining({
+        delivery: expect.objectContaining({
+          mode: "announce",
+          channel: "telegram",
+          to: "-1001234567890",
+          threadId: 123,
+        }),
+      }),
+    );
+    expect(respond).toHaveBeenCalledWith(true, { id: "cron-1" }, undefined);
+  });
+
+  it("accepts threadId on announce delivery update params", async () => {
+    getRuntimeConfig.mockReturnValue({
+      channels: {
+        telegram: {
+          botToken: "telegram-token",
+        },
+      },
+      plugins: {
+        entries: {
+          telegram: { enabled: true },
+        },
+      },
+    } as OpenClawConfig);
+
+    const { context, respond } = await invokeCronUpdate(
+      {
+        id: "cron-1",
+        patch: {
+          delivery: {
+            mode: "announce",
+            channel: "telegram",
+            to: "-1001234567890",
+            threadId: "456",
+          },
+        },
+      },
+      createCronJob({
+        delivery: { mode: "announce", channel: "telegram", to: "-1001234567890" },
+      }),
+    );
+
+    expect(context.cron.update).toHaveBeenCalledWith(
+      "cron-1",
+      expect.objectContaining({
+        delivery: expect.objectContaining({
+          mode: "announce",
+          channel: "telegram",
+          to: "-1001234567890",
+          threadId: "456",
+        }),
+      }),
+    );
+    expect(respond).toHaveBeenCalledWith(true, { id: "cron-1" }, undefined);
+  });
+
   it("rejects ambiguous announce delivery on add when multiple channels are configured", async () => {
     getRuntimeConfig.mockReturnValue({
       session: {