For the complete documentation index, see llms.txt. This page is also available as Markdown.
File exists
This action helps the tool check whether a file already exists on the computer. The result returned is very simple: True (if the file is found) or False (if not found).
Purpose: Used in conjunction with the If block for smarter handling, avoiding situations where the tool encounters errors or stops abruptly when you request it to open a file that does not actually exist.
File Path: The absolute path to the file to check on the computer (e.g., D:\data\accounts.txt).
Output variable: The name of the variable to store the check result (True or False).
Practical example: Check configuration file before running the script
Suppose you write a script to automatically fill in information and require the script to read data from the file D:\GPM\config.json. If the user forgets to create this file or enters the wrong path, the script will encounter a system error when it reaches the file reading command.
To handle this safely, you configure the script as follows:
Step 1: Call the File exists action, enter the path D:\GPM\config.json, and name the output variable $isFileReady.
Step 2: Use the If block to check: If $isFileReady = False.
Step 3: Inside this If block, call the Throw action with the content: "Error: You have not created the config.json file on drive D, please check again!".
Result: The script will automatically check first. If the file does not exist, it will proactively stop the flow and trigger a visually red warning to let you know, instead of trying to continue and crashing the script.
