Ask what is actually true about a codebase before changing it. Index the repository once, then ask what calls a symbol, what a change would break, or how the system is organised — answered from a resolved call graph rather than a text search.
Answers carry the index's own limits. The unresolved-reference count, the truncated-row count, and the traversal horizon are reported rather than rounded away, so a blast radius reads as a floor instead of a total.