diff --git a/CHANGELOG.md b/CHANGELOG.md
index 911754b76aa..21babf4e1ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Slack/Slash commands: preserve the Bolt app receiver when registering external select options handlers so monitor startup does not crash on runtimes that require bound `app.options` calls. (#23209) Thanks @0xgaia.
 - Agents/Ollama: preserve unsafe integer tool-call arguments as exact strings during NDJSON parsing, preventing large numeric IDs from being rounded before tool execution. (#23170) Thanks @BestJoester.
 - Cron/Gateway: keep `cron.list` and `cron.status` responsive during startup catch-up by avoiding a long-held cron lock while missed jobs execute. (#23106) Thanks @jayleekr.
 - Gateway/Config reload: compare array-valued config paths structurally during diffing so unchanged `memory.qmd.paths` and `memory.qmd.scope.rules` no longer trigger false restart-required reloads. (#23185) Thanks @rex05ai.
diff --git a/src/slack/monitor/slash.test.ts b/src/slack/monitor/slash.test.ts
index 4934589a167..53fa613b94d 100644
--- a/src/slack/monitor/slash.test.ts
+++ b/src/slack/monitor/slash.test.ts
@@ -370,6 +370,62 @@ describe("Slack native command argument menus", () => {
     harness.postEphemeral.mockClear();
   });
 
+  it("registers options handlers without losing app receiver binding", async () => {
+    const commands = new Map<string, (args: unknown) => Promise<void>>();
+    const actions = new Map<string, (args: unknown) => Promise<void>>();
+    const options = new Map<string, (args: unknown) => Promise<void>>();
+    const postEphemeral = vi.fn().mockResolvedValue({ ok: true });
+    const app = {
+      client: { chat: { postEphemeral } },
+      command: (name: string, handler: (args: unknown) => Promise<void>) => {
+        commands.set(name, handler);
+      },
+      action: (id: string, handler: (args: unknown) => Promise<void>) => {
+        actions.set(id, handler);
+      },
+      options: function (this: unknown, id: string, handler: (args: unknown) => Promise<void>) {
+        expect(this).toBe(app);
+        options.set(id, handler);
+      },
+    };
+    const ctx = {
+      cfg: { commands: { native: true, nativeSkills: false } },
+      runtime: {},
+      botToken: "bot-token",
+      botUserId: "bot",
+      teamId: "T1",
+      allowFrom: ["*"],
+      dmEnabled: true,
+      dmPolicy: "open",
+      groupDmEnabled: false,
+      groupDmChannels: [],
+      defaultRequireMention: true,
+      groupPolicy: "open",
+      useAccessGroups: false,
+      channelsConfig: undefined,
+      slashCommand: {
+        enabled: true,
+        name: "openclaw",
+        ephemeral: true,
+        sessionPrefix: "slack:slash",
+      },
+      textLimit: 4000,
+      app,
+      isChannelAllowed: () => true,
+      resolveChannelName: async () => ({ name: "dm", type: "im" }),
+      resolveUserName: async () => ({ name: "Ada" }),
+    } as unknown;
+    const account = {
+      accountId: "acct",
+      config: { commands: { native: true, nativeSkills: false } },
+    } as unknown;
+
+    await registerCommands(ctx, account);
+    expect(commands.size).toBeGreaterThan(0);
+    expect(actions.has("openclaw_cmdarg")).toBe(true);
+    expect(options.has("openclaw_cmdarg")).toBe(true);
+  });
+
   it("shows a button menu when required args are omitted", async () => {
     const { respond } = await runCommandHandler(usageHandler);
     const actions = expectArgMenuLayout(respond);
diff --git a/src/slack/monitor/slash.ts b/src/slack/monitor/slash.ts
index bc379db5924..27af729dbf0 100644
--- a/src/slack/monitor/slash.ts
+++ b/src/slack/monitor/slash.ts
@@ -734,21 +734,19 @@ export async function registerSlackMonitorSlashCommands(params: {
   }
 
   const registerArgOptions = () => {
-    const optionsHandler = (
-      ctx.app as unknown as {
-        options?: (
-          actionId: string,
-          handler: (args: {
-            ack: (payload: { options: unknown[] }) => Promise<void>;
-            body: unknown;
-          }) => Promise<void>,
-        ) => void;
-      }
-    ).options;
-    if (typeof optionsHandler !== "function") {
+    const appWithOptions = ctx.app as unknown as {
+      options?: (
+        actionId: string,
+        handler: (args: {
+          ack: (payload: { options: unknown[] }) => Promise<void>;
+          body: unknown;
+        }) => Promise<void>,
+      ) => void;
+    };
+    if (typeof appWithOptions.options !== "function") {
       return;
     }
-    optionsHandler(SLACK_COMMAND_ARG_ACTION_ID, async ({ ack, body }) => {
+    appWithOptions.options(SLACK_COMMAND_ARG_ACTION_ID, async ({ ack, body }) => {
       const typedBody = body as {
         value?: string;
         user?: { id?: string };