Skill by vellus-ai
11 optional skills layered on top of sdlc-kit core. Adds governance (TRDs, epics, milestones, steering), architecture & domain modeling (C4 diagrams in 3 levels, API contracts in 4 styles, DDD aggregates/events/contracts, design system tokens), and post-delivery analysis (incidents with auto-timestamps, traceability matrix, BFS impact analysis). Requires sdlc-kit core.
/plugin install sdlc-kit-extended@claude-community