diff --git a/src/agents/tools/nodes-tool.test.ts b/src/agents/tools/nodes-tool.test.ts
index b7f787ff0..12ac63e44 100644
--- a/src/agents/tools/nodes-tool.test.ts
+++ b/src/agents/tools/nodes-tool.test.ts
@@ -25,20 +25,20 @@ const screenMocks = vi.hoisted(() => ({
 }));
 
 vi.mock("./gateway.js", () => ({
-  callGatewayTool: (...args: unknown[]) => gatewayMocks.callGatewayTool(...args),
-  readGatewayCallOptions: (...args: unknown[]) => gatewayMocks.readGatewayCallOptions(...args),
+  callGatewayTool: gatewayMocks.callGatewayTool,
+  readGatewayCallOptions: gatewayMocks.readGatewayCallOptions,
 }));
 
 vi.mock("./nodes-utils.js", () => ({
-  resolveNodeId: (...args: unknown[]) => nodeUtilsMocks.resolveNodeId(...args),
-  listNodes: (...args: unknown[]) => nodeUtilsMocks.listNodes(...args),
-  resolveNodeIdFromList: (...args: unknown[]) => nodeUtilsMocks.resolveNodeIdFromList(...args),
+  resolveNodeId: nodeUtilsMocks.resolveNodeId,
+  listNodes: nodeUtilsMocks.listNodes,
+  resolveNodeIdFromList: nodeUtilsMocks.resolveNodeIdFromList,
 }));
 
 vi.mock("../../cli/nodes-screen.js", () => ({
-  parseScreenRecordPayload: (...args: unknown[]) => screenMocks.parseScreenRecordPayload(...args),
-  screenRecordTempPath: (...args: unknown[]) => screenMocks.screenRecordTempPath(...args),
-  writeScreenRecordToFile: (...args: unknown[]) => screenMocks.writeScreenRecordToFile(...args),
+  parseScreenRecordPayload: screenMocks.parseScreenRecordPayload,
+  screenRecordTempPath: screenMocks.screenRecordTempPath,
+  writeScreenRecordToFile: screenMocks.writeScreenRecordToFile,
 }));
 
 import { createNodesTool } from "./nodes-tool.js";
diff --git a/src/channels/plugins/outbound/telegram.test.ts b/src/channels/plugins/outbound/telegram.test.ts
index 13668f752..df81947fa 100644
--- a/src/channels/plugins/outbound/telegram.test.ts
+++ b/src/channels/plugins/outbound/telegram.test.ts
@@ -32,6 +32,32 @@ describe("telegramOutbound", () => {
     expect(result).toEqual({ channel: "telegram", messageId: "tg-text-1", chatId: "123" });
   });
 
+  it("parses scoped DM thread ids for sendText", async () => {
+    const sendTelegram = vi.fn().mockResolvedValue({ messageId: "tg-text-2", chatId: "12345" });
+    const sendText = telegramOutbound.sendText;
+    expect(sendText).toBeDefined();
+
+    await sendText!({
+      cfg: {},
+      to: "12345",
+      text: "<b>hello</b>",
+      accountId: "work",
+      threadId: "12345:99",
+      deps: { sendTelegram },
+    });
+
+    expect(sendTelegram).toHaveBeenCalledWith(
+      "12345",
+      "<b>hello</b>",
+      expect.objectContaining({
+        textMode: "html",
+        verbose: false,
+        accountId: "work",
+        messageThreadId: 99,
+      }),
+    );
+  });
+
   it("passes media options for sendMedia", async () => {
     const sendTelegram = vi.fn().mockResolvedValue({ messageId: "tg-media-1", chatId: "123" });
     const sendMedia = telegramOutbound.sendMedia;
diff --git a/src/infra/outbound/outbound-session.ts b/src/infra/outbound/outbound-session.ts
index 1d8140f2e..641bdac31 100644
--- a/src/infra/outbound/outbound-session.ts
+++ b/src/infra/outbound/outbound-session.ts
@@ -20,6 +20,7 @@ import { normalizeAllowListLower } from "../../slack/monitor/allow-list.js";
 import { parseSlackTarget } from "../../slack/targets.js";
 import { buildTelegramGroupPeerId } from "../../telegram/bot/helpers.js";
 import { resolveTelegramTargetChatType } from "../../telegram/inline-buttons.js";
+import { parseTelegramThreadId } from "../../telegram/outbound-params.js";
 import { parseTelegramTarget } from "../../telegram/targets.js";
 import { isWhatsAppGroupJid, normalizeWhatsAppTarget } from "../../whatsapp/normalize.js";
 import type { ResolvedMessagingTarget } from "./target-resolver.js";
@@ -283,8 +284,7 @@ function resolveTelegramSession(
   }
   const parsedThreadId = parsed.messageThreadId;
   const fallbackThreadId = normalizeThreadId(params.threadId);
-  const resolvedThreadId =
-    parsedThreadId ?? (fallbackThreadId ? Number.parseInt(fallbackThreadId, 10) : undefined);
+  const resolvedThreadId = parsedThreadId ?? parseTelegramThreadId(fallbackThreadId);
   // Telegram topics are encoded in the peer id (chatId:topic:<id>).
   const chatType = resolveTelegramTargetChatType(params.target);
   // If the target is a username and we lack a resolvedTarget, default to DM to avoid group keys.
diff --git a/src/infra/outbound/outbound.test.ts b/src/infra/outbound/outbound.test.ts
index 01cdaf3e7..4ce6afd06 100644
--- a/src/infra/outbound/outbound.test.ts
+++ b/src/infra/outbound/outbound.test.ts
@@ -891,6 +891,7 @@ describe("resolveOutboundSessionRoute", () => {
       channel: string;
       target: string;
       replyToId?: string;
+      threadId?: string;
       expected: {
         sessionKey: string;
         from?: string;
@@ -934,6 +935,20 @@ describe("resolveOutboundSessionRoute", () => {
           chatType: "direct",
         },
       },
+      {
+        name: "Telegram DM scoped threadId fallback",
+        cfg: perChannelPeerCfg,
+        channel: "telegram",
+        target: "12345",
+        threadId: "12345:99",
+        expected: {
+          sessionKey: "agent:main:telegram:direct:12345",
+          from: "telegram:12345",
+          to: "telegram:12345",
+          threadId: 99,
+          chatType: "direct",
+        },
+      },
       {
         name: "identity-links per-peer",
         cfg: identityLinksCfg,
@@ -1018,6 +1033,7 @@ describe("resolveOutboundSessionRoute", () => {
         agentId: "main",
         target: testCase.target,
         replyToId: testCase.replyToId,
+        threadId: testCase.threadId,
       });
       expect(route?.sessionKey, testCase.name).toBe(testCase.expected.sessionKey);
       if (testCase.expected.from !== undefined) {
diff --git a/src/telegram/accounts.ts b/src/telegram/accounts.ts
index 5350baae8..17be565c8 100644
--- a/src/telegram/accounts.ts
+++ b/src/telegram/accounts.ts
@@ -84,8 +84,11 @@ function resolveAccountConfig(
 }
 
 function mergeTelegramAccountConfig(cfg: OpenClawConfig, accountId: string): TelegramAccountConfig {
-  const { accounts: _ignored, groups: channelGroups, ...base } = (cfg.channels?.telegram ??
-    {}) as TelegramAccountConfig & { accounts?: unknown };
+  const {
+    accounts: _ignored,
+    groups: channelGroups,
+    ...base
+  } = (cfg.channels?.telegram ?? {}) as TelegramAccountConfig & { accounts?: unknown };
   const account = resolveAccountConfig(cfg, accountId) ?? {};
 
   // In multi-account setups, channel-level `groups` must NOT be inherited by
diff --git a/src/telegram/bot-handlers.ts b/src/telegram/bot-handlers.ts
index 096c7f6a7..59e84ab0f 100644
--- a/src/telegram/bot-handlers.ts
+++ b/src/telegram/bot-handlers.ts
@@ -290,7 +290,7 @@ export const registerTelegramHandlers = ({
     const dmThreadId = !params.isGroup ? params.messageThreadId : undefined;
     const threadKeys =
       dmThreadId != null
-        ? resolveThreadSessionKeys({ baseSessionKey, threadId: String(dmThreadId) })
+        ? resolveThreadSessionKeys({ baseSessionKey, threadId: `${params.chatId}:${dmThreadId}` })
         : null;
     const sessionKey = threadKeys?.sessionKey ?? baseSessionKey;
     const storePath = resolveStorePath(cfg.session?.store, { agentId: route.agentId });
diff --git a/src/telegram/bot-message-context.dm-threads.test.ts b/src/telegram/bot-message-context.dm-threads.test.ts
index 1132a2e07..26812b4c8 100644
--- a/src/telegram/bot-message-context.dm-threads.test.ts
+++ b/src/telegram/bot-message-context.dm-threads.test.ts
@@ -19,7 +19,7 @@ describe("buildTelegramMessageContext dm thread sessions", () => {
 
     expect(ctx).not.toBeNull();
     expect(ctx?.ctxPayload?.MessageThreadId).toBe(42);
-    expect(ctx?.ctxPayload?.SessionKey).toBe("agent:main:main:thread:42");
+    expect(ctx?.ctxPayload?.SessionKey).toBe("agent:main:main:thread:1234:42");
   });
 
   it("keeps legacy dm session key when no thread id", async () => {
diff --git a/src/telegram/bot-message-context.ts b/src/telegram/bot-message-context.ts
index 495af5872..10aa207c7 100644
--- a/src/telegram/bot-message-context.ts
+++ b/src/telegram/bot-message-context.ts
@@ -204,7 +204,7 @@ export const buildTelegramMessageContext = async ({
   const dmThreadId = threadSpec.scope === "dm" ? threadSpec.id : undefined;
   const threadKeys =
     dmThreadId != null
-      ? resolveThreadSessionKeys({ baseSessionKey, threadId: String(dmThreadId) })
+      ? resolveThreadSessionKeys({ baseSessionKey, threadId: `${chatId}:${dmThreadId}` })
       : null;
   const sessionKey = threadKeys?.sessionKey ?? baseSessionKey;
   const mentionRegexes = buildMentionRegexes(cfg, route.agentId);
diff --git a/src/telegram/bot-native-commands.ts b/src/telegram/bot-native-commands.ts
index e2e615ea7..cc9846cbc 100644
--- a/src/telegram/bot-native-commands.ts
+++ b/src/telegram/bot-native-commands.ts
@@ -551,7 +551,7 @@ export const registerTelegramNativeCommands = ({
             dmThreadId != null
               ? resolveThreadSessionKeys({
                   baseSessionKey,
-                  threadId: String(dmThreadId),
+                  threadId: `${chatId}:${dmThreadId}`,
                 })
               : null;
           const sessionKey = threadKeys?.sessionKey ?? baseSessionKey;
diff --git a/src/telegram/bot.test.ts b/src/telegram/bot.test.ts
index fd1f6e63d..bbd506982 100644
--- a/src/telegram/bot.test.ts
+++ b/src/telegram/bot.test.ts
@@ -928,7 +928,7 @@ describe("createTelegramBot", () => {
 
     expect(replySpy).toHaveBeenCalledTimes(1);
     const payload = replySpy.mock.calls[0][0];
-    expect(payload.CommandTargetSessionKey).toBe("agent:main:main:thread:99");
+    expect(payload.CommandTargetSessionKey).toBe("agent:main:main:thread:12345:99");
   });
 
   it("allows native DM commands for paired users", async () => {
diff --git a/src/telegram/outbound-params.ts b/src/telegram/outbound-params.ts
index 1ad18e647..7dd3b7f11 100644
--- a/src/telegram/outbound-params.ts
+++ b/src/telegram/outbound-params.ts
@@ -6,6 +6,14 @@ export function parseTelegramReplyToMessageId(replyToId?: string | null): number
   return Number.isFinite(parsed) ? parsed : undefined;
 }
 
+function parseIntegerId(value: string): number | undefined {
+  if (!/^-?\d+$/.test(value)) {
+    return undefined;
+  }
+  const parsed = Number.parseInt(value, 10);
+  return Number.isFinite(parsed) ? parsed : undefined;
+}
+
 export function parseTelegramThreadId(threadId?: string | number | null): number | undefined {
   if (threadId == null) {
     return undefined;
@@ -17,6 +25,8 @@ export function parseTelegramThreadId(threadId?: string | number | null): number
   if (!trimmed) {
     return undefined;
   }
-  const parsed = Number.parseInt(trimmed, 10);
-  return Number.isFinite(parsed) ? parsed : undefined;
+  // DM topic session keys may scope thread ids as "<chatId>:<threadId>".
+  const scopedMatch = /^-?\d+:(-?\d+)$/.exec(trimmed);
+  const rawThreadId = scopedMatch ? scopedMatch[1] : trimmed;
+  return parseIntegerId(rawThreadId);
 }