diff --git a/app/src/main/kotlin/com/google/ai/sample/util/CommandParser.kt b/app/src/main/kotlin/com/google/ai/sample/util/CommandParser.kt
index 79cc0b8..d1c458f 100644
--- a/app/src/main/kotlin/com/google/ai/sample/util/CommandParser.kt
+++ b/app/src/main/kotlin/com/google/ai/sample/util/CommandParser.kt
@@ -47,7 +47,7 @@ object CommandParser {
 
         // Write text patterns
         PatternInfo("writeText1", Regex("(?i)\\bwriteText\\([\"']([^\"']+)[\"']\\)"), { match -> Command.WriteText(match.groupValues[1]) }, CommandTypeEnum.WRITE_TEXT),
-        PatternInfo("termux1", Regex("(?i)\\bTermux\\([\"']([^\"']+)[\"']\\)"), { match -> Command.TermuxCommand(match.groupValues[1]) }, CommandTypeEnum.TERMUX_COMMAND),
+        PatternInfo("termux1", Regex("""(?i)\bTermux\(\s*(["'])((?:\\.|(?!\1\s*\)).)*)\1\s*\)"""), { match -> Command.TermuxCommand(match.groupValues[2]) }, CommandTypeEnum.TERMUX_COMMAND),
 
         // Click (long) button patterns
         PatternInfo("clickBtn1", Regex("(?i)\\bclick\\([\"']([^\"']+)[\"']"), { match -> Command.ClickButton(match.groupValues[1]) }, CommandTypeEnum.CLICK_BUTTON),
diff --git a/app/src/main/kotlin/com/google/ai/sample/util/SystemMessagePreferences.kt b/app/src/main/kotlin/com/google/ai/sample/util/SystemMessagePreferences.kt
index f3e2df9..f816fd8 100644
--- a/app/src/main/kotlin/com/google/ai/sample/util/SystemMessagePreferences.kt
+++ b/app/src/main/kotlin/com/google/ai/sample/util/SystemMessagePreferences.kt
@@ -12,9 +12,30 @@ object SystemMessagePreferences {
     private const val PREFS_NAME = "system_message_prefs"
     private const val KEY_SYSTEM_MESSAGE = "system_message"
     private const val KEY_FIRST_START_COMPLETED = "first_start_completed" // New flag
+    private val DEFAULT_SYSTEM_MESSAGE_ON_FIRST_START = """You are on an App on a Smartphone. Your app is called Screen Operator. You start from this app. Proceed step by step! DON'T USE TOOL CODE!
+You must operate the screen with exactly following commands: "home()" "back()" "recentApps()" "openApp("sample")" for buttons and words: "click("sample")" "longClick("sample")" "tapAtCoordinates(x, y)"  "tapAtCoordinates(x percent of screen%, y percent of screen%)" "scrollDown()" "scrollUp()" "scrollLeft()" "scrollRight()" "scrollDown(x, y, how much pixel to scroll, duration in milliseconds)" "scrollUp(x, y, how much pixel to scroll, duration in milliseconds)" "scrollLeft(x, y, how much pixel to scroll, duration in milliseconds)" "scrollRight(x, y, how much pixel to scroll, duration in milliseconds)" "scrollDown(x percent of screen%, y percent of screen%, how much percent to scroll%, duration in milliseconds)" "scrollUp(x percent of screen%, y percent of screen%, how much percent to scroll, duration in milliseconds)" "scrollLeft(x percent of screen%, y percent of screen%, how much percent to scroll, duration in milliseconds)" "scrollRight(x percent of screen%, y percent of screen%, how much percent to scroll, duration in milliseconds)" scroll status bar down:  "scrollUp(540, 0, 1100, 50)" "Wait(seconds)"
+    
+"Termux("command")"
+1. You don't need to open Termux because a run.command intent is being called.
 
-    // Content from pasted_content.txt
-    private const val DEFAULT_SYSTEM_MESSAGE_ON_FIRST_START = """You are on an App on a Smartphone. Your app is called Screen Operator. You start from this app. Proceed step by step! DON'T USE TOOL CODE! You must operate the screen with exactly following commands: "home()" "back()" "recentApps()" "openApp("sample")" for buttons and words: "click("sample")" "longClick("sample")" "tapAtCoordinates(x, y)"  "tapAtCoordinates(x percent of screen%, y percent of screen%)" "scrollDown()" "scrollUp()" "scrollLeft()" "scrollRight()" "scrollDown(x, y, how much pixel to scroll, duration in milliseconds)" "scrollUp(x, y, how much pixel to scroll, duration in milliseconds)" "scrollLeft(x, y, how much pixel to scroll, duration in milliseconds)" "scrollRight(x, y, how much pixel to scroll, duration in milliseconds)" "scrollDown(x percent of screen%, y percent of screen%, how much percent to scroll%, duration in milliseconds)" "scrollUp(x percent of screen%, y percent of screen%, how much percent to scroll, duration in milliseconds)" "scrollLeft(x percent of screen%, y percent of screen%, how much percent to scroll, duration in milliseconds)" "scrollRight(x percent of screen%, y percent of screen%, how much percent to scroll, duration in milliseconds)" scroll status bar down:  "scrollUp(540, 0, 1100, 50)" "Wait(seconds)" "Termux("command")" "completed()" To write text, search and click the textfield thereafter: "writeText("sample text")" You need to write the already existing text, if it should continue exist. If the keyboard is displayed, you can press "Enter()". Otherwise, you have to open the keyboard by clicking on the text field. Don't write the commands if you're just planing about it or messaging me. If you have questions, open Screen Operator, ask your question(s), and use completed() until you receive an answer. Retrieve information using "retrieve("sample")" if some is passed to your task. After each message, you will see the screen with additional information about it. Say "completed()" when the task is finished."""
+2. Each call to Termux("command") starts a new session. To prevent this, you must first write Termux("tmux new-session -A -s main") and then pass all subsequent commands with Termux("tmux send-keys -t main "command" Enter").
+
+3.  Do not use wait(seconds) commands when using Termux.
+
+To write text, click the textfield, thereafter: "writeText("sample text")" You need to write the already existing text, if it should continue exist.
+If the keyboard is displayed, you can press "Enter()". Otherwise, you have to open the keyboard by clicking on the text field. 
+
+
+Say "completed()" when the task is finished.
+
+
+Notes:
+1. Don't write the commands if you're just planing about it or messaging me.
+    
+    
+2. If you have questions, open Screen Operator, ask your question(s), and use "completed()" until you receive an human response.
+    
+3. After each message, you will see the screen with additional information about it.""".trimIndent()
     private fun prefs(context: Context) = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
 
     /**
diff --git a/app/src/test/java/com/google/ai/sample/util/CommandParserTest.kt b/app/src/test/java/com/google/ai/sample/util/CommandParserTest.kt
index 4b26399..91fe644 100644
--- a/app/src/test/java/com/google/ai/sample/util/CommandParserTest.kt
+++ b/app/src/test/java/com/google/ai/sample/util/CommandParserTest.kt
@@ -97,4 +97,30 @@ class CommandParserTest {
         assertEquals(1, commands.count { it is Command.Completed })
     }
 
+    @Test
+    fun parseCommands_extractsTermuxCommandWithNestedSingleQuotes() {
+        val commands = CommandParser.parseCommands(
+            """Termux("su -c 'ifconfig'")""",
+            clearBuffer = true
+        )
+
+        assertEquals(1, commands.size)
+        val command = commands.first()
+        assertTrue(command is Command.TermuxCommand)
+        assertEquals("su -c 'ifconfig'", (command as Command.TermuxCommand).command)
+    }
+
+    @Test
+    fun parseCommands_extractsTermuxCommandWithNestedDoubleQuotes() {
+        val commands = CommandParser.parseCommands(
+            """Termux('su -c "ifconfig"')""",
+            clearBuffer = true
+        )
+
+        assertEquals(1, commands.size)
+        val command = commands.first()
+        assertTrue(command is Command.TermuxCommand)
+        assertEquals("su -c \"ifconfig\"", (command as Command.TermuxCommand).command)
+    }
+
 }