fix(auto-reply): use truncateUtf16Safe in bash command and ACP steer output truncation

lsr911 · claude · lsr911 · commit 639951b4a44b · 2026-07-09T16:57:45.000+08:00
Replace naive .slice(0, N) with truncateUtf16Safe() in:
- bash-command.ts: shell command name preview
- lifecycle.ts: ACP steer output text

Co-Authored-By: Claude &lt;noreply@anthropic.com&gt;
diff --git a/src/auto-reply/reply/bash-command.ts b/src/auto-reply/reply/bash-command.ts
@@ -1,4 +1,5 @@
 /** Handles /bash and ! shell command chat shortcuts. */
+import { truncateUtf16Safe } from "@openclaw/normalization-core/utf16-slice";
 import {
   normalizeLowercaseStringOrEmpty,
   normalizeOptionalString,
@@ -54,7 +55,7 @@ function formatSessionSnippet(sessionId: string) {
   if (trimmed.length <= 12) {
     return trimmed;
   }
-  return `${trimmed.slice(0, 8)}…`;
+  return `${truncateUtf16Safe(trimmed, 8)}…`;
 }
 
 function formatOutputBlock(text: string) {
diff --git a/src/auto-reply/reply/commands-acp/lifecycle.ts b/src/auto-reply/reply/commands-acp/lifecycle.ts
@@ -5,6 +5,7 @@ import {
   resolveAcpThreadSessionDetailLines,
 } from "@openclaw/acp-core/runtime/session-identifiers";
 import { normalizeOptionalString } from "@openclaw/normalization-core/string-coerce";
+import { truncateUtf16Safe } from "@openclaw/normalization-core/utf16-slice";
 import { getAcpSessionManager } from "../../../acp/control-plane/manager.js";
 import { resolveAcpSessionResolutionError } from "../../../acp/control-plane/manager.utils.js";
 import {
@@ -787,7 +788,7 @@ async function runAcpSteer(params: {
       if (event.text) {
         output += event.text;
         if (output.length > ACP_STEER_OUTPUT_LIMIT) {
-          output = `${output.slice(0, ACP_STEER_OUTPUT_LIMIT)}…`;
+          output = `${truncateUtf16Safe(output, ACP_STEER_OUTPUT_LIMIT)}…`;
         }
       }
     },

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`/** Handles /bash and ! shell command chat shortcuts. */`
	`2`	`+import { truncateUtf16Safe } from "@openclaw/normalization-core/utf16-slice";`
`2`	`3`	`import {`
`3`	`4`	`normalizeLowercaseStringOrEmpty,`
`4`	`5`	`normalizeOptionalString,`
`@@ -54,7 +55,7 @@ function formatSessionSnippet(sessionId: string) {`
`54`	`55`	`if (trimmed.length <= 12) {`
`55`	`56`	`return trimmed;`
`56`	`57`	`}`
`57`		- return `${trimmed.slice(0, 8)}…`;
	`58`	+ return `${truncateUtf16Safe(trimmed, 8)}…`;
`58`	`59`	`}`
`59`	`60`
`60`	`61`	`function formatOutputBlock(text: string) {`