diff --git a/agent-node/src/agent_node/core/regex_patterns.py b/agent-node/src/agent_node/core/regex_patterns.py
index 5756ce7..ad4d0dd 100644
--- a/agent-node/src/agent_node/core/regex_patterns.py
+++ b/agent-node/src/agent_node/core/regex_patterns.py
@@ -24,7 +24,7 @@
 
 # Echo Suppression Patterns (M9/M7)
 ECHO_START_PATTERN = re.compile(r'echo \s*\[\[1337;Task\^Start;id=[a-zA-Z0-9-]*\]\]\s*&\s*')
-ECHO_END_PATTERN = re.compile(r'\s*&\s*echo \s*\[\[1337;Task\^End;id=[a-zA-Z0-9-]*;exit=%(__ctx_err|errorlevel)%\]\]')
+ECHO_END_PATTERN = re.compile(r'\s*&\s*echo \s*\[\[1337;Task\^End;id=[a-zA-Z0-9-]*;exit=\d+\]\]')
 ECHO_CLEANUP_ANSI = re.compile(r'echo \x1b]1337;TaskEnd;.*')
 ECHO_CLEANUP_BRACKET = re.compile(r'echo \[\[1337;TaskEnd;.*')
 
@@ -35,8 +35,8 @@
 
 # Windows ConPTY stream noise filters
 # Matches Windows ConHost title-set sequences: "0;...<title>..." lines
-WIN_TITLE_RE  = re.compile(r'^\s*0;.*$', re.MULTILINE)
-# Matches the '@call "...bat"' invocation line echoed by cmd.exe (accounting for optional @)
-BAT_CALL_RE   = re.compile(r'^\s*@?call\s+".+\.bat".*$', re.MULTILINE | re.IGNORECASE)
-# Matches the '@del /Q ...' cleanup echo (accounting for optional @)
-DEL_RE        = re.compile(r'^\s*@?del\s+/Q\s+".+\.bat".*$', re.MULTILINE | re.IGNORECASE)
+WIN_TITLE_RE  = re.compile(r'\x1b]0;.*?\x07', re.MULTILINE)
+# Matches the '@call "...bat"' invocation line echoed by cmd.exe (accounting for optional @ and merges)
+BAT_CALL_RE   = re.compile(r'@?call\s+".+?\.bat".*?(?=\s*&|$)', re.IGNORECASE)
+# Matches the '@del /Q ...' cleanup echo (accounting for optional @ and merges)
+DEL_RE        = re.compile(r'@?del\s+/Q\s+".+?\.bat".*?$', re.IGNORECASE)