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40 ChatGPT-5.5 Prompts for UX Designers: User Journey Mapping, Wireframe Descriptions, Usability Testing Scripts, and Design System Documentation
ByMarkos Symeonides July 6, 2026 Reading Time: 22 minutes

40 ChatGPT-5.5 Prompts for UX Designers: User Journey Mapping, Wireframe Descriptions, Usability Testing Scripts, and Design System Documentation Welcome to the Prompts Masterclass: a field-tested set of 40 production-ready prompts engineered for UX designers who want to accelerate discovery, define flows with clarity, test with rigor, and document design systems…

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The Complete GPT-4.5 to GPT-5.5 Migration Checklist: What Changed, What Broke, and How to Update Your Prompts
ByMarkos Symeonides July 6, 2026 Reading Time: 24 minutes

The Complete GPT-4.5 to GPT-5.5 Migration Checklist: What Changed, What Broke, and How to Update Your Prompts GPT-4.5’s deprecation on June 26, 2026 put a firm deadline on a move most teams were already planning: upgrade to GPT-5.5 and refresh the surrounding prompt, tooling, and evaluation stack to match the…

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How to Use MCP Tool Search in OpenAI Codex: Setting Up Dynamic Tool Discovery for AI Agents
ByMarkos Symeonides July 6, 2026 Reading Time: 26 minutes

How to Use MCP Tool Search in OpenAI Codex: Setting Up Dynamic Tool Discovery for AI Agents The July 2026 Codex update introduces a major shift in how AI agents find and use capabilities at runtime: Model Context Protocol (MCP) tools now use tool search by default. Instead of registering…

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Codex Becomes OpenAI’s Desktop Work OS: How the Unified Workspace Changes Developer Workflows in 2026
ByMarkos Symeonides July 6, 2026 Reading Time: 21 minutes

Codex Becomes OpenAI’s Desktop Work OS: How the Unified Workspace Changes Developer Workflows in 2026 OpenAI’s developer story has reached a turning point in 2026: the company is converging ChatGPT, Codex, and its agent tooling into a unified desktop workspace that treats the machine on your desk as the primary…

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Ship Your First AI Feature in 30 Days: Startup Playbook
ByMarkos Symeonides July 4, 2026July 5, 2026 Reading Time: 20 minutes

Ship Your First AI Feature in 30 Days: Startup Playbook A founder-friendly, day-by-day guide to select, design, evaluate, and launch a high-impact AI feature on a 30-day clock—complete with model selection frameworks, evals-as-CI, guardrails, and a 40-item launch checklist. Optimized for startups who need real customer impact, strong unit economics,…

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GPT-5.1 vs Cursor (2026): Which Workflow Wins for Indie Shipping?
ByMarkos Symeonides July 4, 2026 Reading Time: 13 minutes

[IMAGE_PLACEHOLDER_HEADER] ⚡ TL;DR — Quick decision guide Top-line: GPT-5.1 = models & token billing. Cursor = IDE harness + subscription. They solve different parts of the shipping problem. When to pick Cursor: you want IDE-native velocity (file indexing, diff applier, Composer), ship >2 features/week, accept a seat/subscription for convenience. When…

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How to Build a a Code Review Bot with GPT-5 Pro in 2026: Step-by-Step
ByMarkos Symeonides July 4, 2026 Reading Time: 22 minutes

How to Build a Code Review Bot with GPT-5 Pro in 2026: Step-by-Step [IMAGE_PLACEHOLDER_HEADER] ⚡ TL;DR — Key Takeaways What it is: A step-by-step guide to building a production-ready GitHub code review bot using the GPT-5-Pro API, covering webhook ingestion, diff parsing, prompt engineering, structured outputs, and inline PR comment…

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July 2026 AI Industry Report: Models, Funding, and Breakthroughs
ByMarkos Symeonides July 4, 2026 Reading Time: 18 minutes

July 2026 AI Industry Report: Models, Funding, and Breakthroughs [IMAGE_PLACEHOLDER_HEADER] ⚡ TL;DR — Key Takeaways What it is: A data-driven mid-year review of the AI industry covering Q2 2026 model releases, funding rounds, pricing shifts, and benchmark movements across frontier labs including OpenAI, Anthropic, Google, xAI, and Mistral. Who it’s…

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7 Battle-Tested Prompts for marketers in 2026
ByMarkos Symeonides July 4, 2026 Reading Time: 22 minutes

7 Battle-Tested Prompts for marketers in 2026 [IMAGE_PLACEHOLDER_HEADER] ⚡ TL;DR — Key Takeaways What it is: A curated set of seven battle-tested AI prompts engineered for marketers using GPT-5.5, Claude Opus 4.7, and Gemini 3.1 Pro in 2026, each built on role framing, structured output schemas, and chain-of-thought scaffolding. Who…

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Deep Dive: Claude Opus 4.7 Complete Guide u2014 Every Feature, Benchmark, and Use Case in 2026
ByMarkos Symeonides July 4, 2026 Reading Time: 20 minutes

[IMAGE_PLACEHOLDER_HEADER] ⚡ TL;DR — Key Takeaways What it is: Claude Opus 4.7 is Anthropic’s highest-tier production model as of 2026, featuring a 200k context window, extended thinking mode, parallel tool use, and a 79.4% SWE-bench Verified resolved rate — the highest achieved by any single model without agentic scaffolding. Who…

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