diff --git a/extensions/matrix/src/matrix/monitor/allowlist.ts b/extensions/matrix/src/matrix/monitor/allowlist.ts
index 1a38866b059..e9402c38362 100644
--- a/extensions/matrix/src/matrix/monitor/allowlist.ts
+++ b/extensions/matrix/src/matrix/monitor/allowlist.ts
@@ -1,7 +1,11 @@
-import { resolveAllowlistMatchByCandidates, type AllowlistMatch } from "openclaw/plugin-sdk/matrix";
+import {
+  normalizeStringEntries,
+  resolveAllowlistMatchByCandidates,
+  type AllowlistMatch,
+} from "openclaw/plugin-sdk/matrix";
 
 function normalizeAllowList(list?: Array<string | number>) {
-  return (list ?? []).map((entry) => String(entry).trim()).filter(Boolean);
+  return normalizeStringEntries(list);
 }
 
 function normalizeMatrixUser(raw?: string | null): string {
diff --git a/extensions/msteams/src/probe.ts b/extensions/msteams/src/probe.ts
index 11027033cf0..39bf82841c8 100644
--- a/extensions/msteams/src/probe.ts
+++ b/extensions/msteams/src/probe.ts
@@ -1,4 +1,8 @@
-import type { BaseProbeResult, MSTeamsConfig } from "openclaw/plugin-sdk/msteams";
+import {
+  normalizeStringEntries,
+  type BaseProbeResult,
+  type MSTeamsConfig,
+} from "openclaw/plugin-sdk/msteams";
 import { formatUnknownError } from "./errors.js";
 import { loadMSTeamsSdkWithAuth } from "./sdk.js";
 import { readAccessToken } from "./token-response.js";
@@ -35,7 +39,7 @@ function readStringArray(value: unknown): string[] | undefined {
   if (!Array.isArray(value)) {
     return undefined;
   }
-  const out = value.map((entry) => String(entry).trim()).filter(Boolean);
+  const out = normalizeStringEntries(value);
   return out.length > 0 ? out : undefined;
 }
 
diff --git a/src/plugin-sdk/matrix.ts b/src/plugin-sdk/matrix.ts
index 60ee4c47b79..c1c29a776a1 100644
--- a/src/plugin-sdk/matrix.ts
+++ b/src/plugin-sdk/matrix.ts
@@ -92,6 +92,7 @@ export {
   resolveDmGroupAccessWithLists,
 } from "../security/dm-policy-shared.js";
 export { formatDocsLink } from "../terminal/links.js";
+export { normalizeStringEntries } from "../shared/string-normalization.js";
 export type { WizardPrompter } from "../wizard/prompts.js";
 export {
   evaluateGroupRouteAccessForPolicy,
diff --git a/src/plugin-sdk/msteams.ts b/src/plugin-sdk/msteams.ts
index 2ce1e9eb4a3..bbc1bca3b67 100644
--- a/src/plugin-sdk/msteams.ts
+++ b/src/plugin-sdk/msteams.ts
@@ -117,3 +117,4 @@ export {
   buildRuntimeAccountStatusSnapshot,
   createDefaultChannelRuntimeState,
 } from "./status-helpers.js";
+export { normalizeStringEntries } from "../shared/string-normalization.js";