System Variables

The following variables are automatically available in all workflows. They are injected at the start of execution and can be used with the ${{name}} syntax.

`aidata` and `terminal` variables

Variable	Type	Description
`aidata.templates_folder`	string	Path to the templates folder. Already includes `\` at the end.
`aidata.task_folder`	string	Path to the tasks folder. Already includes `\` at the end.
`aidata.base_folder`	string	Path to the base folder. Already includes `\` at the end.
`aidata.common_flag`	bool	`true` if `FILE_COMMON` is used, `false` otherwise
`aidata.common_flag_val`	string	`"FILE_COMMON"` if applicable, empty string `""` if not
`terminal.data_path`	string	`::TerminalInfoString(TERMINAL_DATA_PATH)`
`terminal.common_path`	string	`::TerminalInfoString(TERMINAL_COMMONDATA_PATH)`

Usage in yml

- name: "WriteInFile"
  module: "File"
  with:
    file_name: "${{aidata.base_folder}}results.csv"
    content: "hello world"

Note: Since the folders already include \ at the end, when concatenating with a file name you can write it directly without adding extra separators. This only applies to aidata.* variables — for terminal.* folder variables the full path must be constructed manually, e.g. for .data_path you need to append \\MQL5\\Files\\.

Environment variables "env"

Environment variables are defined by the user at the document root as an object, for example:

env:
 main_folder: "EasySbAi"

And they are accessed via env.*, where * is the variable name, for example:

steps:
  - name: "LoadConfigInPlace"
    module: "AiDataTaskRunner"
    with:
      file_name: "${{aidata.task_folder}}Wf\\config.txt"  
      progress_csv: "temp.csv"
      main_folder: "${{env.main_folder}}\\"
      expert_path: "Shared Projects\\EasySbAi\\Ea.ex5"    
      file_name_json_config: "${{env.main_folder}}\\Config\\move_files.json"