Users are read-only in the CLI. List all users or get a specific user by ID.
plnk user list
plnk user list --output jsonplnk user get <userId>
plnk user get 88 --output json
plnk user get 88 --full# Find a user's ID for assignee/membership commands
plnk user list --output json
# Get full user details
plnk user get 88 --output json --full