fix(lib): resolve B-8 send_keys_safe agy verification bypass and add submission retry test

.agents/skills/lib_py/agents/__main__.py

@@ -18,6 +18,9 @@ def main():
         # Emit shell-eval friendly facts
         print(f"AGENT_NAME={adapter.name}")
         print(f"OWN_KEY={adapter.own_key}")
+        print(f"INPUT_PROMPT={adapter.input_prompt or ''}")
+        print(f"INPUT_PLACEHOLDER={adapter.input_placeholder or ''}")
+        print(f"INPUT_RULE_PATTERN={adapter.input_rule_pattern or ''}")
 
     elif cmd == 'resolve':
         name = sys.argv[2] if len(sys.argv) > 2 else ''
@@ -27,6 +30,18 @@ def main():
             sys.exit(0)
         sys.exit(1)
 
+    elif cmd == 'input-region':
+        agent_name = sys.argv[2] if len(sys.argv) > 2 else ''
+        pane_text = sys.stdin.read()
+        from lib_py.agents.input_region import extract_input_region
+        try:
+            region = extract_input_region(pane_text, agent_name)
+            print(region)
+            sys.exit(0)
+        except Exception as ex:
+            print(f"ERROR: {ex}", file=sys.stderr)
+            sys.exit(5)
+
     else:
         print(f"ERROR: Unknown CLI command {cmd!r}", file=sys.stderr)
         sys.exit(1)