deep-fusion-over-install-for-capability-integration-avoids-skill-sprawl

When integrating external repositories into an existing skill ecosystem, ‘Deep Fusion’ (absorbing intelligence into existing skills) outperforms ‘Plugin Install’ (installing as separate skills). Installing Impeccable as a separate plugin creates competing design intelligence against frontend-taste (both do anti-slop detection), violating Law #2 (Zero Ambiguity) and bloating the context window with overlapping coverage. The correct pattern is to cherry-pick non-overlapping intelligence and merge it into the canonical skill, then wire automation as hooks.