feat(query): expose hidden QueryEngine APIs#12
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Five methods existed in GraphStore but had no public-facing analogue, forcing skills to reach into private internals (`engine._store`) or drop into Python to compute answers Trailmark already knew: - ancestors_of(name): every function/method that can transitively reach the named node. The dual of callees_of, extended transitively. Upward slicing for audit: "given this sink, who could hit it?" - reachable_from(name): transitive closure of callees_of. - entrypoint_paths_to(name): call paths from any entrypoint to a sink. Answers the canonical attack-surface question; pairs with the recently-added entrypoint detection. - nodes_with_annotation(kind): slice the graph by audit state (e.g. all nodes tagged FINDING). - functions_that_raise(exception_name): consumes the parser-populated but previously-unqueried `exception_types` field on CodeUnit. 12 new tests covering direct/transitive behavior, unknown-node cases, and the module/contains-edge interaction in ancestor queries. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Five methods existed in GraphStore but had no public-facing analogue, forcing skills to reach into private internals (
engine._store) or drop into Python to compute answers Trailmark already knew:exception_typesfield on CodeUnit.12 new tests covering direct/transitive behavior, unknown-node cases, and the module/contains-edge interaction in ancestor queries.