From ea7e86714f7dca5674532875d2fb0d33028caf5c Mon Sep 17 00:00:00 2001
From: 8519mark <113274097+8519mark@users.noreply.github.com>
Date: Sat, 30 Aug 2025 10:09:01 +0900
Subject: [PATCH] add `end of command options` to sanitize user prompt (#130)

The PR should address the issue where user prompt maybe treated as a
option with leading `-`
Assuming `claude` does follow POSIX standard, the `--` option should
solve the issue.

fixes #129
---
 src/claude_code_sdk/_internal/transport/subprocess_cli.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/claude_code_sdk/_internal/transport/subprocess_cli.py b/src/claude_code_sdk/_internal/transport/subprocess_cli.py
index 47bcad7..4d6edce 100644
--- a/src/claude_code_sdk/_internal/transport/subprocess_cli.py
+++ b/src/claude_code_sdk/_internal/transport/subprocess_cli.py
@@ -157,7 +157,7 @@ class SubprocessCLITransport(Transport):
             cmd.extend(["--input-format", "stream-json"])
         else:
             # String mode: use --print with the prompt
-            cmd.extend(["--print", str(self._prompt)])
+            cmd.extend(["--print", "--", str(self._prompt)])
 
         return cmd