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With Attitude

AI Product Manager turning everyone into AI builders. Substack Bestseller. I run a 10K+ community at https://karozieminski.substack.com/

Location Denmark Joined Joined on  Personal website https://karozieminski.substack.com/
Get AI Recommended. AI Search Brought Me 51 Subscribers in 60 Days. And It Wasn’t LLMs.txt.

Get AI Recommended. AI Search Brought Me 51 Subscribers in 60 Days. And It Wasn’t LLMs.txt.

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1 min read
What Is the CCAR-F Exam, and Is It Worth It? A Decision Guide for Claude Builders

What Is the CCAR-F Exam, and Is It Worth It? A Decision Guide for Claude Builders

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1 min read
Claude Fable 5.1: What Chinese Coverage Says and English Doesn’t

Claude Fable 5.1: What Chinese Coverage Says and English Doesn’t

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1 min read
Claude Fable 5.1: Pricing, Benchmarks, and the Safeguard Tax

Claude Fable 5.1: Pricing, Benchmarks, and the Safeguard Tax

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1 min read
How to Read AI Model Cards Like an AI Product Manager

How to Read AI Model Cards Like an AI Product Manager

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1 min read
Does Pangram Work on Substack? I Ran a 159,002-Word Experiment During Its First Month

Does Pangram Work on Substack? I Ran a 159,002-Word Experiment During Its First Month

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1 min read
GLM-5.3 Was Trained for Cybersecurity. The Overshoot Was the Surprise.

GLM-5.3 Was Trained for Cybersecurity. The Overshoot Was the Surprise.

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1 min read
Stop Letting AI Choose Your Aesthetic: How to Build Stunning Websites When Your Taste Is Clear but Your Vocabulary Isn’t

Stop Letting AI Choose Your Aesthetic: How to Build Stunning Websites When Your Taste Is Clear but Your Vocabulary Isn’t

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1 min read
Skill: Weekly Reader Question Review

Skill: Weekly Reader Question Review

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1 min read
Google Analytics 4 Cluing Agent Instructions + Daily GA4 Analysis Prompt

Google Analytics 4 Cluing Agent Instructions + Daily GA4 Analysis Prompt

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1 min read
This Second Brain Will Change How You Write Your Newsletter: Cluing Review + AI Agents Preview

This Second Brain Will Change How You Write Your Newsletter: Cluing Review + AI Agents Preview

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1 min read
I Build AI Products for a Living. Here Are 5 Things All Model Comparisons Miss.

I Build AI Products for a Living. Here Are 5 Things All Model Comparisons Miss.

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1 min read
AI for Crime Junkies: When ChatGPT Prompts Become Evidence

AI for Crime Junkies: When ChatGPT Prompts Become Evidence

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1 min read
5 Protocols Now Decide How AI Agents Shop. Here's What Each One Does.

5 Protocols Now Decide How AI Agents Shop. Here's What Each One Does.

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1 min read
Human vs AI Agent Shopping Journey Comparison (Infographics)

Human vs AI Agent Shopping Journey Comparison (Infographics)

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1 min read
1 Community, 164 builders, 100 methods, Y Combinator, and OpenAI Build Week 2026.

1 Community, 164 builders, 100 methods, Y Combinator, and OpenAI Build Week 2026.

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1 min read
Don’t Deploy Another AI-built App Without Monitoring Its Dependencies

Don’t Deploy Another AI-built App Without Monitoring Its Dependencies

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1 min read
AI-assisted Craft: A Manifesto

AI-assisted Craft: A Manifesto

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1 min read
What Is Perplexity SPACE? The Sandbox Behind Perplexity Computer

What Is Perplexity SPACE? The Sandbox Behind Perplexity Computer

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1 min read
How to Build Your First Agent. One That Works.

How to Build Your First Agent. One That Works.

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1 min read
Canva Template: Substack Cover Image Safe Zone (1200 630 345 195)

Canva Template: Substack Cover Image Safe Zone (1200 630 345 195)

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1 min read
Figma Template: Substack Cover Image Safe Zone Template (1200 630 345 195)

Figma Template: Substack Cover Image Safe Zone Template (1200 630 345 195)

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1 min read
What Substack Doesn't Tell You About Cover Images

What Substack Doesn't Tell You About Cover Images

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1 min read
Use AI with Attitude, or Become the Product. Critical AI Literacy Series 2026.

Use AI with Attitude, or Become the Product. Critical AI Literacy Series 2026.

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1 min read
The Pre-Build Interrogation Prompt

The Pre-Build Interrogation Prompt

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1 min read
So, Are You Really Vibe Coding? The 2026 Definition, Lexicon, and Decision Framework

So, Are You Really Vibe Coding? The 2026 Definition, Lexicon, and Decision Framework

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1 min read
What I Refuse to Say About AI in 2026

What I Refuse to Say About AI in 2026

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1 min read
Why Your Perplexity Credits Vanish (and How to Make 10K Last)

Why Your Perplexity Credits Vanish (and How to Make 10K Last)

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Anthropic Just Split the Frontier in Two

Anthropic Just Split the Frontier in Two

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1 min read
Claude Skills: Editorial Minimalist UI System

Claude Skills: Editorial Minimalist UI System

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1 min read
12 AI Projects Built by the PwA Community

12 AI Projects Built by the PwA Community

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1 min read
Claude Opus 4.8: What Changed, and How I'll Test It

Claude Opus 4.8: What Changed, and How I'll Test It

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Coding Prompts: The Runaway Subscribe Button Prompt

Coding Prompts: The Runaway Subscribe Button Prompt

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1 min read
Source Code: The Runaway Subscribe Button

Source Code: The Runaway Subscribe Button

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I Built a Runaway Subscribe Button. It Brought 70 New Subscribers in 6 Days. Code + Challenge Inside.

I Built a Runaway Subscribe Button. It Brought 70 New Subscribers in 6 Days. Code + Challenge Inside.

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1 min read
Gemini Omni Flash: Cute Videos, Serious Product Strategy, and the Future of Editable Reality

Gemini Omni Flash: Cute Videos, Serious Product Strategy, and the Future of Editable Reality

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1 min read
Prompt Refiner Template

Prompt Refiner Template

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1 min read
Perplexity Computer in May 2026: 5 Workflows I Run Every Week

Perplexity Computer in May 2026: 5 Workflows I Run Every Week

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1 min read
The Context Pyramid: A PM’s Framework for AI Agent Context Engineering

The Context Pyramid: A PM’s Framework for AI Agent Context Engineering

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1 min read
How I Built Product with Attitude from 0 to Bestseller, without Pretending I Have a Viral Playbook

How I Built Product with Attitude from 0 to Bestseller, without Pretending I Have a Viral Playbook

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1 min read
Anthropic Launches Claude For Small Business

Anthropic Launches Claude For Small Business

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Prompt: The Context Spec Generator

Prompt: The Context Spec Generator

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An Illustrated Guide to Context Engineering, Prompt Engineering, and The Future of Both

An Illustrated Guide to Context Engineering, Prompt Engineering, and The Future of Both

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1 min read
I Asked Perplexity Computer for a Palantir Tearsheet, and 7 Minutes Later I Had a Bloomberg. And a Concern.

I Asked Perplexity Computer for a Palantir Tearsheet, and 7 Minutes Later I Had a Bloomberg. And a Concern.

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1 min read
The Exact Prompt to Fix "My AI Tool Can't Access My Localhost"

The Exact Prompt to Fix "My AI Tool Can't Access My Localhost"

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1 min read
What Is A Sandboxed Virtual Machine?

What Is A Sandboxed Virtual Machine?

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Are You a Vibe Coder? Don’t Ship Straight Into the Provider Trap

Are You a Vibe Coder? Don’t Ship Straight Into the Provider Trap

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1 min read
Is GPT-5.5 Reliable For Citations? No. It’s The Worst Flagship For That Job.

Is GPT-5.5 Reliable For Citations? No. It’s The Worst Flagship For That Job.

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1 min read
Claude Design Review: 48-Hour Builder's Test + Hero Prompts

Claude Design Review: 48-Hour Builder's Test + Hero Prompts

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1 min read
I Mapped the Opus 4.7 Release to Your Role, Goals, and Real Workflows

I Mapped the Opus 4.7 Release to Your Role, Goals, and Real Workflows

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Discounts for Premium Members (Q2 2026)

Discounts for Premium Members (Q2 2026)

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Everything I Can Offer You In Q2.

Everything I Can Offer You In Q2.

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I Tested Atoms, Lovable, and Replit. One of Them Solves the Problem That Kills Most Apps.

I Tested Atoms, Lovable, and Replit. One of Them Solves the Problem That Kills Most Apps.

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1 min read
I Built a Claude Cowork Loop That Improves Itself. Here's the Exact Setup.

I Built a Claude Cowork Loop That Improves Itself. Here's the Exact Setup.

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1 min read
What AI Builders Are Shipping in the PwA Community Right Now

What AI Builders Are Shipping in the PwA Community Right Now

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Save Credits in Perplexity Computer: Advanced Guide, Part 2 (2026)

Save Credits in Perplexity Computer: Advanced Guide, Part 2 (2026)

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Your AI Agents Are Engineers Now. Manage Them Like It.

Your AI Agents Are Engineers Now. Manage Them Like It.

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The Only Prompting Guide That Works On Reasoning Models (And Our Cognition)

The Only Prompting Guide That Works On Reasoning Models (And Our Cognition)

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Perplexity Hub (2026)

Perplexity Hub (2026)

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The Tools I've Built (and What's Coming Next)

The Tools I've Built (and What's Coming Next)

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1 min read
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