diff --git a/src/channels/plugins/slack.actions.ts b/extensions/slack/src/channel-actions.ts
similarity index 75%
rename from src/channels/plugins/slack.actions.ts
rename to extensions/slack/src/channel-actions.ts
index 317b8a7d8db..b584358fe18 100644
--- a/src/channels/plugins/slack.actions.ts
+++ b/extensions/slack/src/channel-actions.ts
@@ -1,17 +1,15 @@
 import type { AgentToolResult } from "@mariozechner/pi-agent-core";
 import {
-  handleSlackAction,
-  type SlackActionContext,
-} from "../../../extensions/slack/runtime-api.js";
-import {
-  extractSlackToolSend,
-  isSlackInteractiveRepliesEnabled,
-  listSlackMessageActions,
-  resolveSlackChannelId,
-  handleSlackMessageAction,
-} from "../../plugin-sdk/slack.js";
-import { createSlackMessageToolBlocksSchema } from "./message-tool-schema.js";
-import type { ChannelMessageActionAdapter, ChannelMessageToolDiscovery } from "./types.js";
+  createSlackMessageToolBlocksSchema,
+  type ChannelMessageActionAdapter,
+  type ChannelMessageToolDiscovery,
+} from "openclaw/plugin-sdk/channel-runtime";
+import { isSlackInteractiveRepliesEnabled } from "openclaw/plugin-sdk/slack";
+import type { SlackActionContext } from "./action-runtime.js";
+import { handleSlackAction } from "./action-runtime.js";
+import { handleSlackMessageAction } from "./message-action-dispatch.js";
+import { extractSlackToolSend, listSlackMessageActions } from "./message-actions.js";
+import { resolveSlackChannelId } from "./targets.js";
 
 type SlackActionInvoke = (
   action: Record<string, unknown>,
diff --git a/extensions/slack/src/channel.test.ts b/extensions/slack/src/channel.test.ts
index 98fbddca77d..4f22cd91263 100644
--- a/extensions/slack/src/channel.test.ts
+++ b/extensions/slack/src/channel.test.ts
@@ -32,6 +32,28 @@ describe("slackPlugin actions", () => {
     expect(slackPlugin.meta.preferSessionLookupForAnnounceTarget).toBe(true);
   });
 
+  it("owns unified message tool discovery", () => {
+    const discovery = slackPlugin.actions?.describeMessageTool({
+      cfg: {
+        channels: {
+          slack: {
+            botToken: "xoxb-test",
+            appToken: "xapp-test",
+            capabilities: { interactiveReplies: true },
+          },
+        },
+      },
+    });
+
+    expect(discovery?.actions).toContain("send");
+    expect(discovery?.capabilities).toEqual(expect.arrayContaining(["blocks", "interactive"]));
+    expect(discovery?.schema).toMatchObject({
+      properties: {
+        blocks: expect.any(Object),
+      },
+    });
+  });
+
   it("forwards read threadId to Slack action handler", async () => {
     handleSlackActionMock.mockResolvedValueOnce({ messages: [], hasMore: false });
     const handleAction = slackPlugin.actions?.handleAction;
diff --git a/extensions/slack/src/channel.ts b/extensions/slack/src/channel.ts
index 3b346c07d48..b6f82f19afd 100644
--- a/extensions/slack/src/channel.ts
+++ b/extensions/slack/src/channel.ts
@@ -22,7 +22,6 @@ import {
   resolveConfiguredFromRequiredCredentialStatuses,
   resolveSlackGroupRequireMention,
   resolveSlackGroupToolPolicy,
-  createSlackActions,
   type ChannelPlugin,
   type OpenClawConfig,
   type SlackActionContext,
@@ -35,6 +34,7 @@ import {
   type ResolvedSlackAccount,
 } from "./accounts.js";
 import { parseSlackBlocksInput } from "./blocks-input.js";
+import { createSlackActions } from "./channel-actions.js";
 import { createSlackWebClient } from "./client.js";
 import { isSlackInteractiveRepliesEnabled } from "./interactive-replies.js";
 import { normalizeAllowListLower } from "./monitor/allow-list.js";
diff --git a/src/plugin-sdk/slack-message-actions.test.ts b/extensions/slack/src/message-action-dispatch.test.ts
similarity index 95%
rename from src/plugin-sdk/slack-message-actions.test.ts
rename to extensions/slack/src/message-action-dispatch.test.ts
index 9c098bffe76..e44af2f4e71 100644
--- a/src/plugin-sdk/slack-message-actions.test.ts
+++ b/extensions/slack/src/message-action-dispatch.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it, vi } from "vitest";
-import { handleSlackMessageAction } from "./slack-message-actions.js";
+import { handleSlackMessageAction } from "./message-action-dispatch.js";
 
 function createInvokeSpy() {
   return vi.fn(async (action: Record<string, unknown>) => ({
diff --git a/extensions/slack/src/message-action-dispatch.ts b/extensions/slack/src/message-action-dispatch.ts
index fc04c122ac7..d55c058105b 100644
--- a/extensions/slack/src/message-action-dispatch.ts
+++ b/extensions/slack/src/message-action-dispatch.ts
@@ -1,9 +1,205 @@
-import { handleSlackMessageAction as handleSlackMessageActionImpl } from "openclaw/plugin-sdk/slack";
+import type { AgentToolResult } from "@mariozechner/pi-agent-core";
+import {
+  normalizeInteractiveReply,
+  type ChannelMessageActionContext,
+} from "openclaw/plugin-sdk/channel-runtime";
+import { readNumberParam, readStringParam } from "openclaw/plugin-sdk/slack-core";
+import { parseSlackBlocksInput } from "./blocks-input.js";
+import { buildSlackInteractiveBlocks } from "./blocks-render.js";
 
-type HandleSlackMessageAction = typeof import("openclaw/plugin-sdk/slack").handleSlackMessageAction;
+type SlackActionInvoke = (
+  action: Record<string, unknown>,
+  cfg: ChannelMessageActionContext["cfg"],
+  toolContext?: ChannelMessageActionContext["toolContext"],
+) => Promise<AgentToolResult<unknown>>;
 
-export async function handleSlackMessageAction(
-  ...args: Parameters<HandleSlackMessageAction>
-): ReturnType<HandleSlackMessageAction> {
-  return await handleSlackMessageActionImpl(...args);
+function readSlackBlocksParam(actionParams: Record<string, unknown>) {
+  return parseSlackBlocksInput(actionParams.blocks) as Record<string, unknown>[] | undefined;
+}
+
+/** Translate generic channel action requests into Slack-specific tool invocations and payload shapes. */
+export async function handleSlackMessageAction(params: {
+  providerId: string;
+  ctx: ChannelMessageActionContext;
+  invoke: SlackActionInvoke;
+  normalizeChannelId?: (channelId: string) => string;
+  includeReadThreadId?: boolean;
+}): Promise<AgentToolResult<unknown>> {
+  const { providerId, ctx, invoke, normalizeChannelId, includeReadThreadId = false } = params;
+  const { action, cfg, params: actionParams } = ctx;
+  const accountId = ctx.accountId ?? undefined;
+  const resolveChannelId = () => {
+    const channelId =
+      readStringParam(actionParams, "channelId") ??
+      readStringParam(actionParams, "to", { required: true });
+    return normalizeChannelId ? normalizeChannelId(channelId) : channelId;
+  };
+
+  if (action === "send") {
+    const to = readStringParam(actionParams, "to", { required: true });
+    const content = readStringParam(actionParams, "message", {
+      required: false,
+      allowEmpty: true,
+    });
+    const mediaUrl = readStringParam(actionParams, "media", { trim: false });
+    const interactive = normalizeInteractiveReply(actionParams.interactive);
+    const interactiveBlocks = interactive ? buildSlackInteractiveBlocks(interactive) : undefined;
+    const blocks = readSlackBlocksParam(actionParams) ?? interactiveBlocks;
+    if (!content && !mediaUrl && !blocks) {
+      throw new Error("Slack send requires message, blocks, or media.");
+    }
+    if (mediaUrl && blocks) {
+      throw new Error("Slack send does not support blocks with media.");
+    }
+    const threadId = readStringParam(actionParams, "threadId");
+    const replyTo = readStringParam(actionParams, "replyTo");
+    return await invoke(
+      {
+        action: "sendMessage",
+        to,
+        content: content ?? "",
+        mediaUrl: mediaUrl ?? undefined,
+        accountId,
+        threadTs: threadId ?? replyTo ?? undefined,
+        ...(blocks ? { blocks } : {}),
+      },
+      cfg,
+      ctx.toolContext,
+    );
+  }
+
+  if (action === "react") {
+    const messageId = readStringParam(actionParams, "messageId", {
+      required: true,
+    });
+    const emoji = readStringParam(actionParams, "emoji", { allowEmpty: true });
+    const remove = typeof actionParams.remove === "boolean" ? actionParams.remove : undefined;
+    return await invoke(
+      {
+        action: "react",
+        channelId: resolveChannelId(),
+        messageId,
+        emoji,
+        remove,
+        accountId,
+      },
+      cfg,
+    );
+  }
+
+  if (action === "reactions") {
+    const messageId = readStringParam(actionParams, "messageId", {
+      required: true,
+    });
+    const limit = readNumberParam(actionParams, "limit", { integer: true });
+    return await invoke(
+      {
+        action: "reactions",
+        channelId: resolveChannelId(),
+        messageId,
+        limit,
+        accountId,
+      },
+      cfg,
+    );
+  }
+
+  if (action === "read") {
+    const limit = readNumberParam(actionParams, "limit", { integer: true });
+    const readAction: Record<string, unknown> = {
+      action: "readMessages",
+      channelId: resolveChannelId(),
+      limit,
+      before: readStringParam(actionParams, "before"),
+      after: readStringParam(actionParams, "after"),
+      accountId,
+    };
+    if (includeReadThreadId) {
+      readAction.threadId = readStringParam(actionParams, "threadId");
+    }
+    return await invoke(readAction, cfg);
+  }
+
+  if (action === "edit") {
+    const messageId = readStringParam(actionParams, "messageId", {
+      required: true,
+    });
+    const content = readStringParam(actionParams, "message", { allowEmpty: true });
+    const blocks = readSlackBlocksParam(actionParams);
+    if (!content && !blocks) {
+      throw new Error("Slack edit requires message or blocks.");
+    }
+    return await invoke(
+      {
+        action: "editMessage",
+        channelId: resolveChannelId(),
+        messageId,
+        content: content ?? "",
+        blocks,
+        accountId,
+      },
+      cfg,
+    );
+  }
+
+  if (action === "delete") {
+    const messageId = readStringParam(actionParams, "messageId", {
+      required: true,
+    });
+    return await invoke(
+      {
+        action: "deleteMessage",
+        channelId: resolveChannelId(),
+        messageId,
+        accountId,
+      },
+      cfg,
+    );
+  }
+
+  if (action === "pin" || action === "unpin" || action === "list-pins") {
+    const messageId =
+      action === "list-pins"
+        ? undefined
+        : readStringParam(actionParams, "messageId", { required: true });
+    return await invoke(
+      {
+        action: action === "pin" ? "pinMessage" : action === "unpin" ? "unpinMessage" : "listPins",
+        channelId: resolveChannelId(),
+        messageId,
+        accountId,
+      },
+      cfg,
+    );
+  }
+
+  if (action === "member-info") {
+    const userId = readStringParam(actionParams, "userId", { required: true });
+    return await invoke({ action: "memberInfo", userId, accountId }, cfg);
+  }
+
+  if (action === "emoji-list") {
+    const limit = readNumberParam(actionParams, "limit", { integer: true });
+    return await invoke({ action: "emojiList", limit, accountId }, cfg);
+  }
+
+  if (action === "download-file") {
+    const fileId = readStringParam(actionParams, "fileId", { required: true });
+    const channelId =
+      readStringParam(actionParams, "channelId") ?? readStringParam(actionParams, "to");
+    const threadId =
+      readStringParam(actionParams, "threadId") ?? readStringParam(actionParams, "replyTo");
+    return await invoke(
+      {
+        action: "downloadFile",
+        fileId,
+        channelId: channelId ?? undefined,
+        threadId: threadId ?? undefined,
+        accountId,
+      },
+      cfg,
+    );
+  }
+
+  throw new Error(`Action ${action} is not supported for provider ${providerId}.`);
 }
diff --git a/src/channels/plugins/actions/actions.test.ts b/src/channels/plugins/actions/actions.test.ts
index 5442b2cf135..fca5b468066 100644
--- a/src/channels/plugins/actions/actions.test.ts
+++ b/src/channels/plugins/actions/actions.test.ts
@@ -21,7 +21,7 @@ vi.mock("../../../../extensions/signal/src/send-reactions.js", () => ({
   removeReactionSignal,
 }));
 
-vi.mock("../../../../extensions/slack/runtime-api.js", () => ({
+vi.mock("../../../../extensions/slack/src/action-runtime.js", () => ({
   handleSlackAction,
 }));
 
@@ -29,7 +29,7 @@ let discordMessageActions: typeof import("./discord.js").discordMessageActions;
 let handleDiscordMessageAction: typeof import("./discord/handle-action.js").handleDiscordMessageAction;
 let telegramMessageActions: typeof import("./telegram.js").telegramMessageActions;
 let signalMessageActions: typeof import("./signal.js").signalMessageActions;
-let createSlackActions: typeof import("../slack.actions.js").createSlackActions;
+let createSlackActions: typeof import("../../../../extensions/slack/src/channel-actions.js").createSlackActions;
 
 function getDescribedActions(params: {
   describeMessageTool?: ChannelMessageActionAdapter["describeMessageTool"];
@@ -205,7 +205,7 @@ beforeEach(async () => {
   ({ handleDiscordMessageAction } = await import("./discord/handle-action.js"));
   ({ telegramMessageActions } = await import("./telegram.js"));
   ({ signalMessageActions } = await import("./signal.js"));
-  ({ createSlackActions } = await import("../slack.actions.js"));
+  ({ createSlackActions } = await import("../../../../extensions/slack/src/channel-actions.js"));
   vi.clearAllMocks();
 });
 
diff --git a/src/plugin-sdk/slack-message-actions.ts b/src/plugin-sdk/slack-message-actions.ts
deleted file mode 100644
index 64863623503..00000000000
--- a/src/plugin-sdk/slack-message-actions.ts
+++ /dev/null
@@ -1,202 +0,0 @@
-import type { AgentToolResult } from "@mariozechner/pi-agent-core";
-import { parseSlackBlocksInput, buildSlackInteractiveBlocks } from "../../extensions/slack/api.js";
-import { readNumberParam, readStringParam } from "../agents/tools/common.js";
-import type { ChannelMessageActionContext } from "../channels/plugins/types.js";
-import { normalizeInteractiveReply } from "../interactive/payload.js";
-
-type SlackActionInvoke = (
-  action: Record<string, unknown>,
-  cfg: ChannelMessageActionContext["cfg"],
-  toolContext?: ChannelMessageActionContext["toolContext"],
-) => Promise<AgentToolResult<unknown>>;
-
-function readSlackBlocksParam(actionParams: Record<string, unknown>) {
-  return parseSlackBlocksInput(actionParams.blocks) as Record<string, unknown>[] | undefined;
-}
-
-/** Translate generic channel action requests into Slack-specific tool invocations and payload shapes. */
-export async function handleSlackMessageAction(params: {
-  providerId: string;
-  ctx: ChannelMessageActionContext;
-  invoke: SlackActionInvoke;
-  normalizeChannelId?: (channelId: string) => string;
-  includeReadThreadId?: boolean;
-}): Promise<AgentToolResult<unknown>> {
-  const { providerId, ctx, invoke, normalizeChannelId, includeReadThreadId = false } = params;
-  const { action, cfg, params: actionParams } = ctx;
-  const accountId = ctx.accountId ?? undefined;
-  const resolveChannelId = () => {
-    const channelId =
-      readStringParam(actionParams, "channelId") ??
-      readStringParam(actionParams, "to", { required: true });
-    return normalizeChannelId ? normalizeChannelId(channelId) : channelId;
-  };
-
-  if (action === "send") {
-    const to = readStringParam(actionParams, "to", { required: true });
-    const content = readStringParam(actionParams, "message", {
-      required: false,
-      allowEmpty: true,
-    });
-    const mediaUrl = readStringParam(actionParams, "media", { trim: false });
-    const interactive = normalizeInteractiveReply(actionParams.interactive);
-    const interactiveBlocks = interactive ? buildSlackInteractiveBlocks(interactive) : undefined;
-    const blocks = readSlackBlocksParam(actionParams) ?? interactiveBlocks;
-    if (!content && !mediaUrl && !blocks) {
-      throw new Error("Slack send requires message, blocks, or media.");
-    }
-    if (mediaUrl && blocks) {
-      throw new Error("Slack send does not support blocks with media.");
-    }
-    const threadId = readStringParam(actionParams, "threadId");
-    const replyTo = readStringParam(actionParams, "replyTo");
-    return await invoke(
-      {
-        action: "sendMessage",
-        to,
-        content: content ?? "",
-        mediaUrl: mediaUrl ?? undefined,
-        accountId,
-        threadTs: threadId ?? replyTo ?? undefined,
-        ...(blocks ? { blocks } : {}),
-      },
-      cfg,
-      ctx.toolContext,
-    );
-  }
-
-  if (action === "react") {
-    const messageId = readStringParam(actionParams, "messageId", {
-      required: true,
-    });
-    const emoji = readStringParam(actionParams, "emoji", { allowEmpty: true });
-    const remove = typeof actionParams.remove === "boolean" ? actionParams.remove : undefined;
-    return await invoke(
-      {
-        action: "react",
-        channelId: resolveChannelId(),
-        messageId,
-        emoji,
-        remove,
-        accountId,
-      },
-      cfg,
-    );
-  }
-
-  if (action === "reactions") {
-    const messageId = readStringParam(actionParams, "messageId", {
-      required: true,
-    });
-    const limit = readNumberParam(actionParams, "limit", { integer: true });
-    return await invoke(
-      {
-        action: "reactions",
-        channelId: resolveChannelId(),
-        messageId,
-        limit,
-        accountId,
-      },
-      cfg,
-    );
-  }
-
-  if (action === "read") {
-    const limit = readNumberParam(actionParams, "limit", { integer: true });
-    const readAction: Record<string, unknown> = {
-      action: "readMessages",
-      channelId: resolveChannelId(),
-      limit,
-      before: readStringParam(actionParams, "before"),
-      after: readStringParam(actionParams, "after"),
-      accountId,
-    };
-    if (includeReadThreadId) {
-      readAction.threadId = readStringParam(actionParams, "threadId");
-    }
-    return await invoke(readAction, cfg);
-  }
-
-  if (action === "edit") {
-    const messageId = readStringParam(actionParams, "messageId", {
-      required: true,
-    });
-    const content = readStringParam(actionParams, "message", { allowEmpty: true });
-    const blocks = readSlackBlocksParam(actionParams);
-    if (!content && !blocks) {
-      throw new Error("Slack edit requires message or blocks.");
-    }
-    return await invoke(
-      {
-        action: "editMessage",
-        channelId: resolveChannelId(),
-        messageId,
-        content: content ?? "",
-        blocks,
-        accountId,
-      },
-      cfg,
-    );
-  }
-
-  if (action === "delete") {
-    const messageId = readStringParam(actionParams, "messageId", {
-      required: true,
-    });
-    return await invoke(
-      {
-        action: "deleteMessage",
-        channelId: resolveChannelId(),
-        messageId,
-        accountId,
-      },
-      cfg,
-    );
-  }
-
-  if (action === "pin" || action === "unpin" || action === "list-pins") {
-    const messageId =
-      action === "list-pins"
-        ? undefined
-        : readStringParam(actionParams, "messageId", { required: true });
-    return await invoke(
-      {
-        action: action === "pin" ? "pinMessage" : action === "unpin" ? "unpinMessage" : "listPins",
-        channelId: resolveChannelId(),
-        messageId,
-        accountId,
-      },
-      cfg,
-    );
-  }
-
-  if (action === "member-info") {
-    const userId = readStringParam(actionParams, "userId", { required: true });
-    return await invoke({ action: "memberInfo", userId, accountId }, cfg);
-  }
-
-  if (action === "emoji-list") {
-    const limit = readNumberParam(actionParams, "limit", { integer: true });
-    return await invoke({ action: "emojiList", limit, accountId }, cfg);
-  }
-
-  if (action === "download-file") {
-    const fileId = readStringParam(actionParams, "fileId", { required: true });
-    const channelId =
-      readStringParam(actionParams, "channelId") ?? readStringParam(actionParams, "to");
-    const threadId =
-      readStringParam(actionParams, "threadId") ?? readStringParam(actionParams, "replyTo");
-    return await invoke(
-      {
-        action: "downloadFile",
-        fileId,
-        channelId: channelId ?? undefined,
-        threadId: threadId ?? undefined,
-        accountId,
-      },
-      cfg,
-    );
-  }
-
-  throw new Error(`Action ${action} is not supported for provider ${providerId}.`);
-}
diff --git a/src/plugin-sdk/slack.ts b/src/plugin-sdk/slack.ts
index bb3dcfe7c59..31b857c0d2a 100644
--- a/src/plugin-sdk/slack.ts
+++ b/src/plugin-sdk/slack.ts
@@ -78,6 +78,4 @@ export {
   unpinSlackMessage,
 } from "../../extensions/slack/api.js";
 export { recordSlackThreadParticipation } from "../../extensions/slack/api.js";
-export { handleSlackMessageAction } from "./slack-message-actions.js";
-export { createSlackActions } from "../channels/plugins/slack.actions.js";
 export type { SlackActionContext } from "../../extensions/slack/runtime-api.js";