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Keep on, keeping on
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Keep on, keeping on
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arez-xd/README.md

👋 Hi, I’m Adam Reznik

Senior product designer and design engineer with 8+ years of experience: B2B and B2C SaaS, 3D/AR visualization, FinTech, AI-native and e-commerce products, reaching a collective audience of nearly a million users a month.

My background spans design and engineering, which helps me balance user needs, visual clarity and technical constraints. I've led design teams, shipped products internationally and helped shape their growth strategies.

Figma Framer Webflow React TypeScript Storybook Claude Code Cursor

My products. Specsure keeps code within the design system with open-source tools: a token diff, a GitHub Action and an MCP server. Mockplate makes device mockups and product videos in the browser.

Open tools from my agentic workflow. Product Design Harness runs a product design team in Claude Code, and Design Taste gives agents that write UI a designer's judgment.

Case studies LinkedIn Email

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  1. product-design-harness product-design-harness Public

    A product design team for Claude Code: brief, states, copy, screens in code and a blind review, with gates between the steps

    JavaScript

  2. ux-ui-design-taste ux-ui-design-taste Public

    Product designer judgment for AI coding agents. Works with Claude Code, Cursor, and Codex. Battle-tested principles that separate intentional UI from generated slop.

    JavaScript 1

  3. under-the-hood under-the-hood Public

    Check an AI service before you pay: claims, the model underneath, your results, the markup and the terms. An agent skill

    JavaScript

  4. blind-test blind-test Public

    Prove that a skill, harness, rule file or MCP server changes what your agent does: a hidden key written first, traps for false alarms, runs with and without it, graded blind

    JavaScript

  5. what-breaks-in-ai-code what-breaks-in-ai-code Public

    Code review for apps built with AI agents: finds what breaks when real users arrive, ranks it by what it costs and gives a fix for every finding. On request, what could be simpler. Claude Code, Cod…

    HTML

  6. specsure/specsure specsure/specsure Public

    Design-system graph, token diff and design QA. DTCG 2025.10 tokens → snapshots, diffs, semver and rules. Runs locally, in CI or in the browser, with no server

    TypeScript