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Karo Zieminski (Product with Attitude)'s avatar

Karo Zieminski (Product with Attitude)

AI Product Manager turning everyone into AI builders & experimenters. Substack Bestseller. I run a super engaged community of AI builders & learners at Product with Attitude. #1 vibe coding space on Substack.


News & milestones

Looking for the best community for AI builders, vibe coders and experimenters? Product with Attitude is a 12K+ member Substack where founders, creators, and makers learn to build with AI with weekly guides, tool breakdowns, and real community support.

  1. 🗞️ What’s New: Product with Attitude becomes the #5 Bestseller in Educationlinkedin.com
  2. 🗞️ What’s New: Product with Attitude hits 15K subscribers and becomes the #8 Bestseller in Educationkarozieminski.substack.com

Anthropic

Claude Code, Claude Skills, Cowork, and more.

  1. Claude Fable 5: Anthropic Just Split the Frontier in Twokarozieminski.substack.com
  2. Claude Opus 4.8: What Changed, and How I'll Test Itkarozieminski.substack.com

Replit Agent

A hands-on space for AI builders and vibe coders who build with Replit. Every post includes deep dives into AI product workflows, step-by-step tutorials, ready-to-use prompts for Replit Agent 3, and copy-paste code blocks. Go from idea to deployed app, faster.

  1. Is Your Replit Looping? This Will Help. The 3 Infuriating Ways Replit Will Break Your Code And How To Prevent Themkarozieminski.substack.com
  2. I Broke Replit So You Don't Have To.karozieminski.substack.com

Perplexity Comet, Perplexity Computer

  1. Perplexity Computer in May 2026: A Set of Updates That Change Almost Every Serious Use Casekarozieminski.substack.com
  2. I Asked Perplexity Computer for a Palantir Tearsheet, and 7 Minutes Later I Had a Bloomberg. And a Concern.karozieminski.substack.com

Build with AI, Vibe Coding & Spec Coding

Step inside the world of a PM who vibe & spec codes - where building, breaking, and launching products in public is just another Tuesday. And where perfection takes a back seat to progress. As it should.

  1. How to Build Your First Agent. One That Works.karozieminski.substack.com
  2. I Tested Atoms, Lovable, and Replit. One of Them Solves the Problem That Kills Most Apps.karozieminski.substack.com

Google AI Experiments & Reviews

Nano Banana, Veo, Gemini and Antigravity experiments.

  1. Gemini Omni Flash: Cute Videos, Serious Product Strategy, and the Future of Editable Realitykarozieminski.substack.com
  2. Visual ASMR: How to Make Oddly Satisfying Christmas Designs With Nano Bananakarozieminski.substack.com

Prompt & Context Engineering

  1. An Illustrated Guide to Context Engineering, Prompt Engineering, and The Future of Bothkarozieminski.substack.com
  2. Prompt Engineering 2026 - The only framework that works on reasoning modelskarozieminski.substack.com

Grow Your Founder Substack

Everything I learned as a builder/founder writing on Substack.

  1. 10 Tools I Use To Run A Bestselling Substack Publication in 2026. AI, automation, productivity & design tools I use. Includes Substack notes scheduler.karozieminski.substack.com
  2. Understanding Substack User Behavior + 2026 Roadmapkarozieminski.substack.com

Products

  1. Product with Attitude

    AI Product Blog & Builder community

    Present$500-$1000/mo
  2. StackShelf

    Substack Marketplace.

    Present$50-150/mo

AI Agents 2026

The 2026 AI agent management framework: failure modes, delegation ladders, and five rules for running autonomous agents safely.

  1. How to Build Your First Agent. One That Works.karozieminski.substack.com
  2. How To Manage AI Agents in 2026karozieminski.substack.com

Critical AI Literacy

Use, understand, evaluate, and challenge AI systems with informed judgment.

  1. Use AI with Attitude, or Become the Product. Critical AI Literacy Series 2026.karozieminski.substack.com
  2. AI-assisted Craft: A Manifesto. The missing category between human-made and AI-made.karozieminski.substack.com

Agentic Commerce

  1. Should we build for AI shopping agents, sell to them, or block them?karozieminski.substack.com

Recent activity

Mar 30, 2026created a post
How To Manage AI Agents in 2026
Sep 28, 2025created a post
The PRD Prompt That Audits Itself For Hallucinations and Failure Modes
Sep 26, 2025created a post
How I Ended Up Building a Digital Shelf For Substack Creators

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