AddMask mask a value prevents a string or variable from being printed in the log.

AddPath prepends a directory to the system PATH variable and automatically makes it available to all subsequent actions in the current job the currently running action cannot access the updated path variable.

Debug prints a debug message to the log.

Error creates an error message and prints the message to the log.

Info prints an info message to the log.

NewNoticeProperty create notice property.

NewWarningProperty create warning property.

Notice creates a notice message and prints the message to the log.

SetEnv you can make an environment variable available to any subsequent steps in a workflow job by defining or updating the environment variable.

SetOutput sets a step's output parameter.

SetState you can create environment variables for sharing with your workflow's pre: or post: actions by writing to the file located at GITHUB_STATE.

Start processing workflow commands, pass the same token that you used to stop workflow commands.

StartGroup creates an expandable group in the log.

Stop stops processing any workflow commands.

Summary You can set some custom Markdown for each job so that it will be displayed on the summary page of a workflow run.

Warning creates a warning message and prints the message to the log.