fix(logging): use truncateUtf16Safe in diagnostic stability and session context

lsr911 · claude · lsr911 · commit 7bbd041fd449 · 2026-07-09T16:42:40.000+08:00
Replace naive .slice(0, N) with truncateUtf16Safe() in:
- diagnostic-stability-bundle.ts: error message sanitization
- diagnostic-session-context.ts: quoted field value truncation

Co-Authored-By: Claude &lt;noreply@anthropic.com&gt;
diff --git a/src/logging/diagnostic-session-context.ts b/src/logging/diagnostic-session-context.ts
@@ -1,6 +1,7 @@
 // Diagnostic session context helpers capture session metadata for support bundles.
 import fs from "node:fs";
 import path from "node:path";
+import { truncateUtf16Safe } from "@openclaw/normalization-core/utf16-slice";
 import { resolveStateDir } from "../config/paths.js";
 import { loadCronJobsStoreSync, resolveCronJobsStorePath } from "../cron/store.js";
 
@@ -19,7 +20,7 @@ function quoteLogField(value: string): string {
   const oneLine = value.replace(/\s+/g, " ").trim();
   const truncated =
     oneLine.length > MAX_QUOTED_FIELD_CHARS
-      ? `${oneLine.slice(0, Math.max(0, MAX_QUOTED_FIELD_CHARS - 3))}...`
+      ? `${truncateUtf16Safe(oneLine, Math.max(0, MAX_QUOTED_FIELD_CHARS - 3))}...`
       : oneLine;
   return `"${truncated.replace(/["\\]/g, "\\$&")}"`;
 }
diff --git a/src/logging/diagnostic-stability-bundle.ts b/src/logging/diagnostic-stability-bundle.ts
@@ -1,6 +1,7 @@
 // Diagnostic stability bundle helpers collect stable diagnostic data for comparison.
 import fs from "node:fs";
 import path from "node:path";
+import { truncateUtf16Safe } from "@openclaw/normalization-core/utf16-slice";
 import process from "node:process";
 import v8 from "node:v8";
 import { resolveStateDir } from "../config/paths.js";
@@ -207,7 +208,7 @@ function readErrorMessage(error: unknown): string | undefined {
     return undefined;
   }
   return sanitized.length > MAX_SAFE_ERROR_MESSAGE_LENGTH
-    ? `${sanitized.slice(0, MAX_SAFE_ERROR_MESSAGE_LENGTH)}...`
+    ? `${truncateUtf16Safe(sanitized, MAX_SAFE_ERROR_MESSAGE_LENGTH)}...`
     : sanitized;
 }
 
