deterministic-design

Audit UI layouts for balance and usability failures with annotated feedback.

41|5|Updated Sep 30, 2025
One-click install
npx skills add https://github.com/efekrbas/discord-hypesquad-manager --skill deterministic-design
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: deterministic-design
Source: https://github.com/efekrbas/discord-hypesquad-manager/tree/main/.agents/skills/deterministic-design
Command: npx skills add https://github.com/efekrbas/discord-hypesquad-manager --skill deterministic-design

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill removes guesswork from UI review by turning visual opinions into measurable layout evidence and structured usability feedback.

Core Features & Use Cases

  • Deterministic Layout Audit: Measures centroid, optical center, and pixel-level balance so you can verify whether a screen is visually centered and stable.
  • Annotated Screenshot Review: Produces evidence-backed visual annotations that make spacing, alignment, and composition issues easy to spot and discuss.
  • Usability Heuristic Check: Uses a separate fresh-eyes evaluation to assess the interface against Nielsen-style usability expectations and surface prioritized fixes.
  • Use Case: A product designer can validate a landing page or app screen before release, proving that it is both visually balanced and practically usable.

Quick Start

Ask the deterministic-design skill to audit the attached UI screenshot for balance, alignment, and usability issues.

Frequently Asked Questions about deterministic-design

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I audit a UI screenshot for layout balance and usability issues?

To audit a UI screenshot, the deterministic-design skill measures pixel-level balance, centroid, and optical center, then provides annotated visual feedback alongside a heuristic usability review. This transforms subjective visual opinions into measurable layout evidence and structured usability fixes.

What is the best way to prove a product screen is visually centered and stable?

The best way to prove visual stability is through a deterministic layout audit that measures centroid and optical center at the pixel level. This provides evidence-backed spatial validation, ensuring the interface is mathematically balanced rather than relying on subjective visual assessment.

Can I run a Nielsen heuristics usability check on an attached rendered interface?

Yes, you can run a Nielsen heuristics usability check on a rendered interface. The skill applies a separate fresh-eyes evaluation against usability expectations, surfacing prioritized fixes to ensure the screen is practically usable before release.

Does this layout audit work with annotated screenshots for spacing and alignment feedback?

Yes, the layout audit works with annotated screenshots by producing evidence-backed visual annotations. These annotations make spacing, alignment, and composition issues easy to spot and discuss, turning abstract layout problems into clear, actionable visual evidence.

When do I need deterministic spatial validation for a UI design?

You need deterministic spatial validation when preparing a landing page or app screen for release and needing to prove it is balanced and usable. It removes guesswork from UI review by verifying visual centering and identifying heuristic usability failures before launch.

Why does my UI layout look unbalanced even after manual adjustments?

A UI layout looks unbalanced after manual adjustments because visual opinions lack measurable layout evidence. By measuring pixel-level balance, centroid, and optical center, the audit identifies whether the screen is visually centered and stable, replacing subjective guessing with spatial validation.