What is the logic for multiple suggestion api? (multiple autocomplete extensions)

[softmarshmallow]

I'm planning to develop a suggestion extension something like github copilot, but more focused on front-end code.

What happens if user has multiple extensions doing the suggestion? can i force vscode to suggest my code first?
What is the priority and how is it handled?

[jrieken]

see

vscode/src/vscode-dts/vscode.d.ts

Lines 11436 to 11441 in ab80dae

	* Multiple providers can be registered for a language. In that case providers are sorted
	* by their {@link languages.match score} and groups of equal score are sequentially asked for
	* completion items. The process stops when one or many providers of a group return a
	* result. A failing provider (rejected promise or exception) will not fail the whole
	* operation.
	*

[jrieken]

and

vscode/src/vscode-dts/vscode.d.ts

Lines 4117 to 4129 in ab80dae

	/**
	* A string that should be used when comparing this item
	* with other items. When `falsy` the {@link CompletionItem.label label}
	* is used.
	*
	* Note that `sortText` is only used for the initial ordering of completion
	* items. When having a leading word (prefix) ordering is based on how
	* well completions match that prefix and the initial ordering is only used
	* when completions match equally well. The prefix is defined by the
	* {@linkcode CompletionItem.range range}-property and can therefore be different
	* for each completion.
	*/
	sortText?: string;