This is a project-specific auditor that checks design proposals and code diffs against the architectural invariants governing Exarchos itself, a tool that appears to handle event stores and MCP surfaces. You'd run it during planning phases or PR reviews, especially when touching core infrastructure like the event store or composite tool registry. It's explicitly not for generic code quality (there are other skills for that) but for enforcing the specific constraints that keep Exarchos internally consistent. Each invariant has a stable ID and structured shape, making it machine-readable. Narrow in scope but useful if you're working on Exarchos and want to catch architectural violations before they land.
npx skills add https://github.com/lvlup-sw/exarchos --skill design-invariants