deep-fusion-over-plugin-install-for-capability-upgrades

When integrating external repos into an existing skill ecosystem, cherry-pick intelligence and fuse it into existing skills rather than installing new skills side-by-side. Installing Impeccable as a separate plugin alongside frontend-taste creates ambiguity about which skill governs design quality (Law #2 violation) and doubles context window cost. Deep fusion merges non-overlapping rules into existing skills, wires deterministic tools as hooks, and maintains a single source of truth per capability domain. Approach B (plugin install) was rejected specifically because of skill overlap and context bloat.