Apple Notes MCP Server

Instructions

Args:
    note_name: Name of the note to update
    new_content: New content for the note
    account: Optional account name where the note is located

Implementation Reference

• apple_notes.py:301-347 (handler)

  The @mcp.tool() decorator registers and defines the handler for the 'update_note' tool. It escapes the note name and content, constructs an AppleScript to find and update the note's body (searching all accounts if no account specified), executes it via subprocess, and returns success/error messages.

  @mcp.tool()
  async def update_note(note_name: str, new_content: str, account: Optional[str] = None) -> str:
      """Update the content of an existing note.
      
      Args:
          note_name: Name of the note to update
          new_content: New content for the note
          account: Optional account name where the note is located
      """
      escaped_name = escape_applescript_string(note_name)
      escaped_content = escape_applescript_string(new_content)
      
      if account:
          script = f'''
          tell application "Notes"
              set accountName to "{escape_applescript_string(account)}"
              set noteName to "{escaped_name}"
              try
                  set targetAccount to account accountName
                  set targetNote to note noteName of targetAccount
                  set body of targetNote to "{escaped_content}"
                  return "SUCCESS"
              on error errMsg
                  return "ERROR: " & errMsg
              end try
          end tell
          '''
      else:
          script = f'''
          tell application "Notes"
              set noteName to "{escaped_name}"
              repeat with anAccount in accounts
                  try
                      set targetNote to note noteName of anAccount
                      set body of targetNote to "{escaped_content}"
                      return "SUCCESS"
                  end try
              end repeat
              return "ERROR: Note not found"
          end tell
          '''
      
      output, success = run_applescript(script)
      if not success or "ERROR" in output:
          return output if output else f"Failed to update note '{note_name}'."
      
      return f"Successfully updated note '{note_name}'."

• apple_notes.py:17-34 (helper)

  Helper function used by update_note to execute AppleScript commands via subprocess and handle errors/timeouts.

  def run_applescript(script: str) -> tuple[str, bool]:
      """Run an AppleScript command and return the output."""
      try:
          result = subprocess.run(
              ["osascript", "-e", script],
              capture_output=True,
              text=True,
              timeout=30
          )
          if result.returncode == 0:
              return result.stdout.strip(), True
          else:
              error_msg = result.stderr.strip() or result.stdout.strip()
              return f"Error: {error_msg}", False
      except subprocess.TimeoutExpired:
          return "Error: AppleScript execution timed out", False
      except Exception as e:
          return f"Error: {str(e)}", False

• apple_notes.py:37-43 (helper)

  Helper function used by update_note to properly escape strings for safe insertion into AppleScript.

  def escape_applescript_string(text: str) -> str:
      """Escape special characters for AppleScript strings."""
      # Replace backslashes, quotes, and newlines
      text = text.replace("\\", "\\\\")
      text = text.replace('"', '\\"')
      text = text.replace("\n", "\\n")
      return text