Agent Skills: technical-specification

Build validated specifications from discussion documents through collaborative refinement. Third phase of research-discussion-specification-plan-implement-review workflow. Use when: (1) User asks to create/build a specification from discussions, (2) User wants to validate and refine discussion content before planning, (3) Converting discussion documents into standalone specifications, (4) User says 'specify this' or 'create a spec' after discussions, (5) Need to filter hallucinations and enrich gaps before formal planning. Creates specifications in docs/workflow/specification/{topic}.md that technical-planning uses to build implementation plans.