OpenSpec Plus Design

Mission

Strengthen OpenSpec design with brainstorming patterns. Prevent premature architectural convergence — explore alternatives, compare tradeoffs, recommend, get user selection, build incrementally, validate vs proposal (and any existing spec) before writing design.md.

This skill is RIGID. Do NOT write any design file before all workflow phases complete through Phase 3 section approvals. After writing, reviewer subagent is MANDATORY — skipping review is a skill violation.

Red flags — STOP, you are about to violate this skill: