This skill should be used by plugin authors who need to access wicked-search
graph data for symbol dependencies, file references, definitions, or call chains.
Triggered by queries about "graph data", "symbol dependencies", "cross-plugin search",
"file references", "call chain", "blast radius from cache", or "cached graph".
Enables other plugins to query the code graph without direct wicked-search coupling,
using wicked-cache for efficient data sharing.