diff --git a/extensions/browser/src/record-shared.ts b/extensions/browser/src/record-shared.ts
index 52eb5813b91..8f4a0b98703 100644
--- a/extensions/browser/src/record-shared.ts
+++ b/extensions/browser/src/record-shared.ts
@@ -1,10 +1,12 @@
-import { asNullableRecord, isRecord } from "openclaw/plugin-sdk/text-runtime";
+import {
+  asNullableRecord,
+  hasNonEmptyString as sharedHasNonEmptyString,
+  isRecord,
+} from "openclaw/plugin-sdk/text-runtime";
 
 export { asNullableRecord as asRecord, isRecord };
 
-export function hasNonEmptyString(value: unknown): value is string {
-  return typeof value === "string" && value.trim().length > 0;
-}
+export const hasNonEmptyString = sharedHasNonEmptyString;
 
 export function normalizeString(value: unknown): string | undefined {
   if (typeof value === "string") {
diff --git a/extensions/feishu/src/comment-shared.ts b/extensions/feishu/src/comment-shared.ts
index a626cb2fa6e..8d63e32b45b 100644
--- a/extensions/feishu/src/comment-shared.ts
+++ b/extensions/feishu/src/comment-shared.ts
@@ -1,4 +1,8 @@
-import { asOptionalRecord, normalizeOptionalString } from "openclaw/plugin-sdk/text-runtime";
+import {
+  asOptionalRecord,
+  hasNonEmptyString as sharedHasNonEmptyString,
+  normalizeOptionalString,
+} from "openclaw/plugin-sdk/text-runtime";
 
 export function encodeQuery(params: Record<string, string | undefined>): string {
   const query = new URLSearchParams();
@@ -24,9 +28,7 @@ export function isRecord(value: unknown): value is Record<string, unknown> {
 
 export const asRecord = asOptionalRecord;
 
-export function hasNonEmptyString(value: unknown): value is string {
-  return typeof value === "string" && value.trim().length > 0;
-}
+export const hasNonEmptyString = sharedHasNonEmptyString;
 
 export function extractCommentElementText(element: unknown): string | undefined {
   if (!isRecord(element)) {
diff --git a/extensions/memory-core/src/dreaming-shared.ts b/extensions/memory-core/src/dreaming-shared.ts
index 8ae0c9e3292..fa574306a77 100644
--- a/extensions/memory-core/src/dreaming-shared.ts
+++ b/extensions/memory-core/src/dreaming-shared.ts
@@ -1,4 +1,5 @@
 export { asNullableRecord as asRecord } from "openclaw/plugin-sdk/text-runtime";
+export { formatErrorMessage } from "openclaw/plugin-sdk/error-runtime";
 
 export function normalizeTrimmedString(value: unknown): string | undefined {
   if (typeof value !== "string") {
@@ -7,7 +8,3 @@ export function normalizeTrimmedString(value: unknown): string | undefined {
   const trimmed = value.trim();
   return trimmed.length > 0 ? trimmed : undefined;
 }
-
-export function formatErrorMessage(err: unknown): string {
-  return err instanceof Error ? err.message : String(err);
-}
diff --git a/extensions/tlon/src/monitor/utils.ts b/extensions/tlon/src/monitor/utils.ts
index d54903092b8..7868f728456 100644
--- a/extensions/tlon/src/monitor/utils.ts
+++ b/extensions/tlon/src/monitor/utils.ts
@@ -1,3 +1,4 @@
+import { formatErrorMessage as sharedFormatErrorMessage } from "openclaw/plugin-sdk/error-runtime";
 import { asNullableObjectRecord } from "openclaw/plugin-sdk/text-runtime";
 import { normalizeShip } from "../targets.js";
 
@@ -183,10 +184,7 @@ export async function resolveAuthorizedMessageText(params: {
 }
 
 export const asRecord = asNullableObjectRecord;
-
-export function formatErrorMessage(error: unknown): string {
-  return error instanceof Error ? error.message : String(error);
-}
+export const formatErrorMessage = sharedFormatErrorMessage;
 
 export function readString(
   record: Record<string, unknown> | null,
diff --git a/src/infra/outbound/channel-target.ts b/src/infra/outbound/channel-target.ts
index 3df81fd8776..f87f2b8f1b0 100644
--- a/src/infra/outbound/channel-target.ts
+++ b/src/infra/outbound/channel-target.ts
@@ -1,15 +1,14 @@
+import { hasNonEmptyString as sharedHasNonEmptyString } from "../../shared/string-coerce.js";
 import { MESSAGE_ACTION_TARGET_MODE } from "./message-action-spec.js";
 
+export const hasNonEmptyString = sharedHasNonEmptyString;
+
 export const CHANNEL_TARGET_DESCRIPTION =
   "Recipient/channel: E.164 for WhatsApp/Signal, Telegram chat id/@username, Discord/Slack channel/user, or iMessage handle/chat_id";
 
 export const CHANNEL_TARGETS_DESCRIPTION =
   "Recipient/channel targets (same format as --target); accepts ids or names when the directory is available.";
 
-export function hasNonEmptyString(value: unknown): value is string {
-  return typeof value === "string" && value.trim().length > 0;
-}
-
 export function applyTargetToParams(params: {
   action: string;
   args: Record<string, unknown>;
diff --git a/src/shared/string-coerce.ts b/src/shared/string-coerce.ts
index e8f17905ac7..a07ba3b0c4f 100644
--- a/src/shared/string-coerce.ts
+++ b/src/shared/string-coerce.ts
@@ -9,3 +9,7 @@ export function normalizeNullableString(value: unknown): string | null {
 export function normalizeOptionalString(value: unknown): string | undefined {
   return normalizeNullableString(value) ?? undefined;
 }
+
+export function hasNonEmptyString(value: unknown): value is string {
+  return typeof value === "string" && value.trim().length > 0;
+}