Produces a single, portable HTML prototype for a feature or flow so stakeholders can review UI, states, and interactions before planning or development. The skill reads existing UX/spec documents when available and renders a fidelity-appropriate prototype (low/mid/high) saved to a standard OUT_DIR/prototypes path. It enforces portability rules: inline SVGs, CSS tokens, no external images, and non-happy states for every screen.
Use this skill to make ambiguous requirements visible: prior to detailed planning, when validating UX decisions, or when a quick visual artifact is needed to align stakeholders. It supports post-ux rendering (high-fi) and synthesis from scope docs or descriptions (mid/low-fi).
This skill is implementation-agnostic; it is useful for agents that can write files and run simple scripts (Copilot/Codex/Gemini CLI/Claude Code). It expects access to the repository workspace and basic shell tools.
This skill has not been reviewed by our automated audit pipeline yet.