diff --git a/extensions/line/src/channel.ts b/extensions/line/src/channel.ts
index f2d4b84f8bc..7d01f233371 100644
--- a/extensions/line/src/channel.ts
+++ b/extensions/line/src/channel.ts
@@ -19,6 +19,7 @@ import {
   type LineChannelData,
   type ResolvedLineAccount,
 } from "../api.js";
+import { resolveLineGroupRequireMention } from "./group-policy.js";
 import { getLineRuntime } from "./runtime.js";
 import { lineSetupAdapter } from "./setup-core.js";
 import { lineSetupWizard } from "./setup-surface.js";
@@ -127,18 +128,7 @@ export const linePlugin: ChannelPlugin<ResolvedLineAccount> = {
     },
   },
   groups: {
-    resolveRequireMention: ({ cfg, accountId, groupId }) => {
-      const account = getLineRuntime().channel.line.resolveLineAccount({
-        cfg,
-        accountId: accountId ?? undefined,
-      });
-      const groups = account.config.groups;
-      if (!groups || !groupId) {
-        return false;
-      }
-      const groupConfig = groups[groupId] ?? groups["*"];
-      return groupConfig?.requireMention ?? false;
-    },
+    resolveRequireMention: resolveLineGroupRequireMention,
   },
   messaging: {
     normalizeTarget: (target) => {
diff --git a/extensions/line/src/group-policy.test.ts b/extensions/line/src/group-policy.test.ts
new file mode 100644
index 00000000000..b9fa64321aa
--- /dev/null
+++ b/extensions/line/src/group-policy.test.ts
@@ -0,0 +1,57 @@
+import { describe, expect, it } from "vitest";
+import { resolveLineGroupRequireMention } from "./group-policy.js";
+
+describe("line group policy", () => {
+  it("matches raw and prefixed LINE group keys for requireMention", () => {
+    const cfg = {
+      channels: {
+        line: {
+          groups: {
+            "room:r123": {
+              requireMention: false,
+            },
+            "group:g123": {
+              requireMention: false,
+            },
+            "*": {
+              requireMention: true,
+            },
+          },
+        },
+      },
+      // oxlint-disable-next-line typescript/no-explicit-any
+    } as any;
+
+    expect(resolveLineGroupRequireMention({ cfg, groupId: "r123" })).toBe(false);
+    expect(resolveLineGroupRequireMention({ cfg, groupId: "room:r123" })).toBe(false);
+    expect(resolveLineGroupRequireMention({ cfg, groupId: "g123" })).toBe(false);
+    expect(resolveLineGroupRequireMention({ cfg, groupId: "group:g123" })).toBe(false);
+    expect(resolveLineGroupRequireMention({ cfg, groupId: "other" })).toBe(true);
+  });
+
+  it("uses account-scoped prefixed LINE group config for requireMention", () => {
+    const cfg = {
+      channels: {
+        line: {
+          groups: {
+            "*": {
+              requireMention: true,
+            },
+          },
+          accounts: {
+            work: {
+              groups: {
+                "group:g123": {
+                  requireMention: false,
+                },
+              },
+            },
+          },
+        },
+      },
+      // oxlint-disable-next-line typescript/no-explicit-any
+    } as any;
+
+    expect(resolveLineGroupRequireMention({ cfg, groupId: "g123", accountId: "work" })).toBe(false);
+  });
+});
diff --git a/extensions/line/src/group-policy.ts b/extensions/line/src/group-policy.ts
new file mode 100644
index 00000000000..e6b4fa0ba95
--- /dev/null
+++ b/extensions/line/src/group-policy.ts
@@ -0,0 +1,22 @@
+import { resolveChannelGroupRequireMention } from "openclaw/plugin-sdk/channel-policy";
+import { resolveExactLineGroupConfigKey, type OpenClawConfig } from "openclaw/plugin-sdk/line-core";
+
+type LineGroupContext = {
+  cfg: OpenClawConfig;
+  accountId?: string | null;
+  groupId?: string | null;
+};
+
+export function resolveLineGroupRequireMention(params: LineGroupContext): boolean {
+  const exactGroupId = resolveExactLineGroupConfigKey({
+    cfg: params.cfg,
+    accountId: params.accountId,
+    groupId: params.groupId,
+  });
+  return resolveChannelGroupRequireMention({
+    cfg: params.cfg,
+    channel: "line",
+    groupId: exactGroupId ?? params.groupId,
+    accountId: params.accountId,
+  });
+}
diff --git a/src/channels/plugins/group-mentions.test.ts b/src/channels/plugins/group-mentions.test.ts
deleted file mode 100644
index 7375112ac34..00000000000
--- a/src/channels/plugins/group-mentions.test.ts
+++ /dev/null
@@ -1,109 +0,0 @@
-import { describe, expect, it } from "vitest";
-import {
-  resolveBlueBubblesGroupRequireMention,
-  resolveBlueBubblesGroupToolPolicy,
-  resolveLineGroupRequireMention,
-  resolveLineGroupToolPolicy,
-} from "./group-mentions.js";
-
-describe("group mentions (bluebubbles)", () => {
-  it("uses generic channel group policy helpers", () => {
-    const blueBubblesCfg = {
-      channels: {
-        bluebubbles: {
-          groups: {
-            "chat:primary": {
-              requireMention: false,
-              tools: { deny: ["exec"] },
-            },
-            "*": {
-              requireMention: true,
-              tools: { allow: ["message.send"] },
-            },
-          },
-        },
-      },
-      // oxlint-disable-next-line typescript/no-explicit-any
-    } as any;
-
-    expect(
-      resolveBlueBubblesGroupRequireMention({ cfg: blueBubblesCfg, groupId: "chat:primary" }),
-    ).toBe(false);
-    expect(
-      resolveBlueBubblesGroupRequireMention({ cfg: blueBubblesCfg, groupId: "chat:other" }),
-    ).toBe(true);
-    expect(
-      resolveBlueBubblesGroupToolPolicy({ cfg: blueBubblesCfg, groupId: "chat:primary" }),
-    ).toEqual({ deny: ["exec"] });
-    expect(
-      resolveBlueBubblesGroupToolPolicy({ cfg: blueBubblesCfg, groupId: "chat:other" }),
-    ).toEqual({
-      allow: ["message.send"],
-    });
-  });
-});
-
-describe("group mentions (line)", () => {
-  it("matches raw and prefixed LINE group keys for requireMention and tools", () => {
-    const lineCfg = {
-      channels: {
-        line: {
-          groups: {
-            "room:r123": {
-              requireMention: false,
-              tools: { allow: ["message.send"] },
-            },
-            "group:g123": {
-              requireMention: false,
-              tools: { deny: ["exec"] },
-            },
-            "*": {
-              requireMention: true,
-            },
-          },
-        },
-      },
-      // oxlint-disable-next-line typescript/no-explicit-any
-    } as any;
-
-    expect(resolveLineGroupRequireMention({ cfg: lineCfg, groupId: "r123" })).toBe(false);
-    expect(resolveLineGroupRequireMention({ cfg: lineCfg, groupId: "room:r123" })).toBe(false);
-    expect(resolveLineGroupRequireMention({ cfg: lineCfg, groupId: "g123" })).toBe(false);
-    expect(resolveLineGroupRequireMention({ cfg: lineCfg, groupId: "group:g123" })).toBe(false);
-    expect(resolveLineGroupRequireMention({ cfg: lineCfg, groupId: "other" })).toBe(true);
-    expect(resolveLineGroupToolPolicy({ cfg: lineCfg, groupId: "r123" })).toEqual({
-      allow: ["message.send"],
-    });
-    expect(resolveLineGroupToolPolicy({ cfg: lineCfg, groupId: "g123" })).toEqual({
-      deny: ["exec"],
-    });
-  });
-
-  it("uses account-scoped prefixed LINE group config for requireMention", () => {
-    const lineCfg = {
-      channels: {
-        line: {
-          groups: {
-            "*": {
-              requireMention: true,
-            },
-          },
-          accounts: {
-            work: {
-              groups: {
-                "group:g123": {
-                  requireMention: false,
-                },
-              },
-            },
-          },
-        },
-      },
-      // oxlint-disable-next-line typescript/no-explicit-any
-    } as any;
-
-    expect(
-      resolveLineGroupRequireMention({ cfg: lineCfg, groupId: "g123", accountId: "work" }),
-    ).toBe(false);
-  });
-});
diff --git a/src/channels/plugins/group-mentions.ts b/src/channels/plugins/group-mentions.ts
deleted file mode 100644
index c3268496b03..00000000000
--- a/src/channels/plugins/group-mentions.ts
+++ /dev/null
@@ -1,118 +0,0 @@
-import {
-  resolveChannelGroupRequireMention,
-  resolveChannelGroupToolsPolicy,
-} from "../../config/group-policy.js";
-import type { GroupToolPolicyConfig } from "../../config/types.tools.js";
-import { resolveExactLineGroupConfigKey } from "../../line/group-keys.js";
-import type { ChannelGroupContext } from "./types.js";
-
-type GroupMentionParams = ChannelGroupContext;
-
-type ChannelGroupPolicyChannel =
-  | "telegram"
-  | "whatsapp"
-  | "imessage"
-  | "googlechat"
-  | "bluebubbles"
-  | "line";
-
-function resolveChannelRequireMention(
-  params: GroupMentionParams,
-  channel: ChannelGroupPolicyChannel,
-  groupId: string | null | undefined = params.groupId,
-): boolean {
-  return resolveChannelGroupRequireMention({
-    cfg: params.cfg,
-    channel,
-    groupId,
-    accountId: params.accountId,
-  });
-}
-
-function resolveChannelToolPolicyForSender(
-  params: GroupMentionParams,
-  channel: ChannelGroupPolicyChannel,
-  groupId: string | null | undefined = params.groupId,
-): GroupToolPolicyConfig | undefined {
-  return resolveChannelGroupToolsPolicy({
-    cfg: params.cfg,
-    channel,
-    groupId,
-    accountId: params.accountId,
-    senderId: params.senderId,
-    senderName: params.senderName,
-    senderUsername: params.senderUsername,
-    senderE164: params.senderE164,
-  });
-}
-
-export function resolveWhatsAppGroupRequireMention(params: GroupMentionParams): boolean {
-  return resolveChannelRequireMention(params, "whatsapp");
-}
-
-export function resolveIMessageGroupRequireMention(params: GroupMentionParams): boolean {
-  return resolveChannelRequireMention(params, "imessage");
-}
-
-export function resolveGoogleChatGroupRequireMention(params: GroupMentionParams): boolean {
-  return resolveChannelRequireMention(params, "googlechat");
-}
-
-export function resolveGoogleChatGroupToolPolicy(
-  params: GroupMentionParams,
-): GroupToolPolicyConfig | undefined {
-  return resolveChannelToolPolicyForSender(params, "googlechat");
-}
-
-export function resolveBlueBubblesGroupRequireMention(params: GroupMentionParams): boolean {
-  return resolveChannelRequireMention(params, "bluebubbles");
-}
-
-export function resolveWhatsAppGroupToolPolicy(
-  params: GroupMentionParams,
-): GroupToolPolicyConfig | undefined {
-  return resolveChannelToolPolicyForSender(params, "whatsapp");
-}
-
-export function resolveIMessageGroupToolPolicy(
-  params: GroupMentionParams,
-): GroupToolPolicyConfig | undefined {
-  return resolveChannelToolPolicyForSender(params, "imessage");
-}
-
-export function resolveBlueBubblesGroupToolPolicy(
-  params: GroupMentionParams,
-): GroupToolPolicyConfig | undefined {
-  return resolveChannelToolPolicyForSender(params, "bluebubbles");
-}
-
-export function resolveLineGroupRequireMention(params: GroupMentionParams): boolean {
-  const exactGroupId = resolveExactLineGroupConfigKey({
-    cfg: params.cfg,
-    accountId: params.accountId,
-    groupId: params.groupId,
-  });
-  if (exactGroupId) {
-    return resolveChannelGroupRequireMention({
-      cfg: params.cfg,
-      channel: "line",
-      groupId: exactGroupId,
-      accountId: params.accountId,
-    });
-  }
-  return resolveChannelRequireMention(params, "line");
-}
-
-export function resolveLineGroupToolPolicy(
-  params: GroupMentionParams,
-): GroupToolPolicyConfig | undefined {
-  const exactGroupId = resolveExactLineGroupConfigKey({
-    cfg: params.cfg,
-    accountId: params.accountId,
-    groupId: params.groupId,
-  });
-  if (exactGroupId) {
-    return resolveChannelToolPolicyForSender(params, "line", exactGroupId);
-  }
-  return resolveChannelToolPolicyForSender(params, "line");
-}
diff --git a/src/plugin-sdk/line-core.ts b/src/plugin-sdk/line-core.ts
index eef1b3c2b76..04b2950a50d 100644
--- a/src/plugin-sdk/line-core.ts
+++ b/src/plugin-sdk/line-core.ts
@@ -15,5 +15,6 @@ export {
   resolveDefaultLineAccountId,
   resolveLineAccount,
 } from "../line/accounts.js";
+export { resolveExactLineGroupConfigKey } from "../line/group-keys.js";
 export type { ResolvedLineAccount } from "../line/types.js";
 export { LineConfigSchema } from "../line/config-schema.js";