Gist a quick history ArgumentCompleter

HistoryCompleter.ps1

# A function without a [CmdletBinding] attribute or [Parameter] attributes is freeform.
# Let's declare a little function that just outputs the name and arguments
function I {
    param()
    @($MyInvocation.InvocationName) + $args    
}

# We can use Register-ArgumentCompleter to register the completer for a named command.
# This simple completer will show any matching history items
Register-ArgumentCompleter -CommandName I -ScriptBlock {
    param($wordToComplete, $commandAst, $cursorPosition)
    
    # Whenever we find a match, we need all elements except the one being completed    
    $upTilNow = foreach ($element in $commandAst.CommandElements) {
        if ($element.Extent.EndOffset -ge $cursorPosition) {
            break
        }
        $element
    }
    
    # Now, to find any matching history entries, we Get-History
    foreach ($historyItem in Get-History) {
        # looking for things that are _like_ the entire ast
        if ($historyItem.CommandLine -like "$commandAst*") {
            # and returning the current word(s) to complete
            # replacing any leading whitespaces, so we don't tab too much.
            $historyItem.CommandLine.Substring("$upTilNow".Length) -replace '^\s+'
        }
    }
}

# Give it a try