fix: complete readline prompt coverage

agents/s02_tool_use.py

@@ -23,6 +23,12 @@ import os
 import subprocess
 from pathlib import Path
 
+try:
+    import readline
+    readline.parse_and_bind('set bind-tty-special-chars off')
+except ImportError:
+    pass
+
 from anthropic import Anthropic
 from dotenv import load_dotenv
 
@@ -136,7 +142,8 @@ if __name__ == "__main__":
     history = []
     while True:
         try:
-            query = input("\033[36ms02 >> \033[0m")
+            # \001/\002 tell Readline the ANSI escapes have zero display width.
+            query = input("\001\033[36m\002s02 >> \001\033[0m\002")
         except (EOFError, KeyboardInterrupt):
             break
         if query.strip().lower() in ("q", "exit", ""):