From 1dcf0a4cbdee249fd9a20c67b9b718563353773b Mon Sep 17 00:00:00 2001
From: Olcan <olcans@gmail.com>
Date: Mon, 2 Jun 2025 14:50:12 -0700
Subject: strip ansi from shell output (#699)

---
 packages/core/src/tools/shell.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'packages/core/src')

diff --git a/packages/core/src/tools/shell.ts b/packages/core/src/tools/shell.ts
index d0cad218..53e2bbf3 100644
--- a/packages/core/src/tools/shell.ts
+++ b/packages/core/src/tools/shell.ts
@@ -18,6 +18,8 @@ import {
 } from './tools.js';
 import { SchemaValidator } from '../utils/schemaValidator.js';
 import { getErrorMessage } from '../utils/errors.js';
+import stripAnsi from 'strip-ansi';
+
 export interface ShellToolParams {
   command: string;
   description?: string;
@@ -177,7 +179,7 @@ export class ShellTool extends BaseTool<ShellToolParams, ToolResult> {
       // removing listeners can overflow OS buffer and block subprocesses
       // destroying (e.g. shell.stdout.destroy()) can terminate subprocesses via SIGPIPE
       if (!exited) {
-        const str = data.toString();
+        const str = stripAnsi(data.toString());
         stdout += str;
         appendOutput(str);
       }
@@ -186,7 +188,7 @@ export class ShellTool extends BaseTool<ShellToolParams, ToolResult> {
     let stderr = '';
     shell.stderr.on('data', (data: Buffer) => {
       if (!exited) {
-        const str = data.toString();
+        const str = stripAnsi(data.toString());
         stderr += str;
         appendOutput(str);
       }
-- 
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