deep-fusion-vs-plugin-install-for-repo-integration

When integrating external repos/tools into an existing skill ecosystem, absorbing their intelligence into existing skills (Deep Fusion) is superior to installing them as standalone plugins. Installing separately creates skill overlap and ambiguity (Law #2 violation), competing design intelligence sources, and context window bloat. Reserve standalone installation only for truly non-overlapping domain skills (e.g. WebGPU — zero overlap with frontend stack).