The default environment variables that GitHub sets are available to every step in a workflow.

The job context contains information about the currently running job.

The runner context contains information about the runner that is executing the current job.

Basically does Union[Key] but when Union is a union it only gives Union[Key] for the members of the union for which it is a valid key.

Get the Action template from a workflow, step or job.

The github context contains information about the workflow run and the event that triggered the run. You can also read most of the github context data in environment variables. For more information about environment variables, see "Using environment variables."

This context is only populated for workflow runs that have dependent jobs, and changes for each job in a workflow run. You can access this context from any job or step in a workflow. This object contains all the properties listed below.

This context is the same for each job in a workflow run. You can access this context from any step in a job. This object contains all the properties listed below.