prime-sweep

Prime the calling agent with high-signal context from large source surfaces (multiple files, packages, folders) via parallel delegated sub-agents. Sub-agents absorb the noise; only digested findings + source:line pointers enter the caller's context. Trigger /prime-sweep, chained from /prime-expand when sources are too large, or auto-fire on handoff receipt with listed sources. Iterative with cap 3 / log 4-6 / ask 7…