ReadonlyfreeEverything in the query that isn't a recognised mode or type token.
ReadonlymodeSearch mode the view container uses to pick which widget is visible.
ReadonlytypeContribution searchTokens present in the query. Empty means "all contributions are enabled".
Outcome of VSXExtensionsSearchModel.parseQuery: the query, decomposed into the (single) search mode driven by
@installed/@builtin/@recommended, the per-contribution type tokens (e.g.@mcp), and the free-text remainder used as the actual search term.