[beliu]

Actually that’s not quite right. We offer auto-indexing now for some languages with more on the way. If neither auto-indexing nor manual LSIF generation are an option, we fall back to our search-based code navigation, which, similar to GitHub’s implementation, trades off accuracy for zero configuration (GitHub’s approach is parser-based while we use a combo of parsing, search, and heuristics that eliminates the need for an index entirely in some cases). This is all documented here for those curious to learn more: https://docs.sourcegraph.com/code_intelligence.