fix(slack): apply limit parameter to emoji-list action (#13421)

Merged via /review-pr -> /prepare-pr -> /merge-pr.

Prepared head SHA: 67e9b64858
Co-authored-by: mcaxtr <7562095+mcaxtr@users.noreply.github.com>
Co-authored-by: steipete <58493+steipete@users.noreply.github.com>
Reviewed-by: @steipete

src/channels/plugins/slack.actions.test.ts

@@ -1,4 +1,4 @@
-import { describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import type { OpenClawConfig } from "../../config/config.js";
 import { createSlackActions } from "./slack.actions.js";
 
@@ -9,6 +9,10 @@ vi.mock("../../agents/tools/slack-actions.js", () => ({
 }));
 
 describe("slack actions adapter", () => {
+  beforeEach(() => {
+    handleSlackAction.mockClear();
+  });
+
   it("forwards threadId for read", async () => {
     const cfg = { channels: { slack: { botToken: "tok" } } } as OpenClawConfig;
     const actions = createSlackActions("slack");
@@ -30,4 +34,24 @@ describe("slack actions adapter", () => {
       threadId: "171234.567",
     });
   });
+
+  it("forwards normalized limit for emoji-list", async () => {
+    const cfg = { channels: { slack: { botToken: "tok" } } } as OpenClawConfig;
+    const actions = createSlackActions("slack");
+
+    await actions.handleAction?.({
+      channel: "slack",
+      action: "emoji-list",
+      cfg,
+      params: {
+        limit: "2.9",
+      },
+    });
+
+    const [params] = handleSlackAction.mock.calls[0] ?? [];
+    expect(params).toMatchObject({
+      action: "emojiList",
+      limit: 2,
+    });
+  });
 });

src/channels/plugins/slack.actions.ts

@@ -210,8 +210,9 @@ export function createSlackActions(providerId: string): ChannelMessageActionAdap
       }
 
       if (action === "emoji-list") {
+        const limit = readNumberParam(params, "limit", { integer: true });
         return await handleSlackAction(
-          { action: "emojiList", accountId: accountId ?? undefined },
+          { action: "emojiList", limit, accountId: accountId ?? undefined },
           cfg,
         );
       }