diff --git a/scripts/dev/test-device-pair-telegram.ts b/scripts/dev/test-device-pair-telegram.ts
index 675328370c9f..0d56d03ab353 100644
--- a/scripts/dev/test-device-pair-telegram.ts
+++ b/scripts/dev/test-device-pair-telegram.ts
@@ -43,6 +43,10 @@ type DevicePairTelegramArgs = {
 const BOOLEAN_FLAGS = new Set(["--help", "-h"]);
 const VALUE_FLAGS = new Set(["--account", "-a", "--chat", "-c"]);
 
+function isMissingOptionValue(value: string | undefined): boolean {
+  return !value || BOOLEAN_FLAGS.has(value) || VALUE_FLAGS.has(value) || value.startsWith("--");
+}
+
 function writeStdoutLine(...parts: string[]): void {
   process.stdout.write(`${parts.join(" ")}\n`);
 }
@@ -84,7 +88,7 @@ function validateArgs(args: readonly string[]): void {
     }
     if (VALUE_FLAGS.has(arg)) {
       const value = args[index + 1];
-      if (!value || value.startsWith("--")) {
+      if (isMissingOptionValue(value)) {
         throw new CliArgumentError(`${arg} requires a value`);
       }
       index += 1;
diff --git a/test/scripts/test-device-pair-telegram.test.ts b/test/scripts/test-device-pair-telegram.test.ts
index bdf06559b2f6..5243f145e105 100644
--- a/test/scripts/test-device-pair-telegram.test.ts
+++ b/test/scripts/test-device-pair-telegram.test.ts
@@ -21,6 +21,24 @@ describe("scripts/dev/test-device-pair-telegram.ts", () => {
     });
   });
 
+  it("rejects option tokens as device-pair Telegram values", () => {
+    for (const flag of ["--chat", "-c", "--account", "-a"]) {
+      expect(() => parseDevicePairTelegramArgs([flag, "-h"])).toThrow(
+        `${flag} requires a value`,
+      );
+    }
+    expect(() => parseDevicePairTelegramArgs(["--chat", "--help"])).toThrow(
+      "--chat requires a value",
+    );
+  });
+
+  it("allows negative Telegram chat ids", () => {
+    expect(parseDevicePairTelegramArgs(["--chat", "-100123"])).toMatchObject({
+      chatId: "-100123",
+      help: false,
+    });
+  });
+
   it("rejects unknown args before loading OpenClaw plugins", async () => {
     const cfg = { channels: { telegram: { enabled: true } } };
     const loadOpenClawPlugins = vi.fn();