Purpose
Judge whether the experience communicates the right thing, in the right order, with a coherent visual system and usable states across real viewports and input modes.
When it fires
- A user-facing surface is new or materially changed.
- A visual system, motion pattern, or generated asset is introduced.
- The user asks for design, taste, accessibility, or anti-slop review.
Inputs
- Product intent, audience, and primary task.
- Existing design system or taste kernel.
- Live preview or runnable surface and supported breakpoints.
- Content, asset provenance, accessibility, and performance constraints.
Workflow
- Verify the primary task and content hierarchy before judging decoration.
- Compare the implementation to its declared design language; do not impose a generic aesthetic.
- Inspect typography, spacing, contrast, alignment, density, and sentence-case labels.
- Exercise keyboard, focus, pointer, loading, empty, error, success, and reduced-motion states.
- Review mobile, tablet, and desktop for overflow, occlusion, and reading order.
- Inspect generated media for provenance, legibility, identity drift, and appropriate placement.
- Report defects by user impact with visual evidence and a precise correction.
Output contract
Return verdict, task/hierarchy assessment, system-coherence findings, accessibility findings, responsive findings, interaction-state findings, media/provenance findings, prioritized corrections, and verification receipts.
Tools & MCP
Use the host-approved browser or design connector and an existing preview when possible. Do not start arbitrary browser binaries or publish assets without authorization.
Quality bar
- No universal font, gradient, glass, grain, or spacing prescription.
- Sentence case is preserved unless official product casing requires otherwise.
- Accessibility and reduced motion are release criteria, not polish.
- Screenshots support findings but do not replace semantic or interaction checks.
Example
Input: “Review the new marketplace on desktop and phone.”
Good output: validate the purchase journey, heading order, focus names, state truth, line length, tracking, overflow, and primary CTA at both viewports, then list only evidence-backed corrections.
Built on SIP — Starlight Intelligence Protocol Vertical: starlight-agent-skills · portable capability layer