diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index b66d937a..3826cb37 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -1,6 +1,9 @@
 # Changelog
 
 ## [Unreleased]
+### Fixed
+
+- Fixed potential text decoding issues in bash executor by using streaming TextDecoder instead of Buffer.toString()
 
 ## [0.33.0] - 2026-01-04
 
@@ -1298,4 +1301,4 @@ Initial public release.
 - Git branch display in footer
 - Message queueing during streaming responses
 - OAuth integration for Gmail and Google Calendar access
-- HTML export with syntax highlighting and collapsible sections
+- HTML export with syntax highlighting and collapsible sections
\ No newline at end of file
diff --git a/packages/coding-agent/src/core/bash-executor.ts b/packages/coding-agent/src/core/bash-executor.ts
index 0a83d2e5..59ae546f 100644
--- a/packages/coding-agent/src/core/bash-executor.ts
+++ b/packages/coding-agent/src/core/bash-executor.ts
@@ -97,11 +97,13 @@ export function executeBash(command: string, options?: BashExecutorOptions): Pro
 			options.signal.addEventListener("abort", abortHandler, { once: true });
 		}
 
+		const decoder = new TextDecoder();
+
 		const handleData = (data: Buffer) => {
 			totalBytes += data.length;
 
 			// Sanitize once at the source: strip ANSI, replace binary garbage, normalize newlines
-			const text = sanitizeBinaryOutput(stripAnsi(data.toString())).replace(/\r/g, "");
+			const text = sanitizeBinaryOutput(stripAnsi(decoder.decode(data, { stream: true }))).replace(/\r/g, "");
 
 			// Start writing to temp file if exceeds threshold
 			if (totalBytes > DEFAULT_MAX_BYTES && !tempFilePath) {