This is a comprehensive documentation lifecycle manager for engineering teams that want structured artifact tracking. It handles eleven artifact types from high-level Vision documents down to Specs, ADRs, Runbooks, and Training docs, each with defined phases and templates. The hierarchy is Vision → Initiative → Epic → Spec, with strict parent-child validation and priority cascading. It enforces session checks before state changes, syncs with repository AGENTS.md files, and chains into swain-do for implementation tracking. The skill includes detailed reference files for each artifact type with lifecycle definitions and frontmatter templates. If you're running a serious agent-driven workflow and need more than a flat task list, this gives you the scaffolding. Opinionated but thorough.
npx skills add https://github.com/cristoslc/swain --skill swain-design