Explainer tag | eYssen AI

60 Articles

Explainer ×

MCP: How AI Connects to Your Tools

Krisztian Eyssen, Krisztian Eyssen

MCP: How AI Connects to Your Tools

MCP is the standard agents use today to connect to your systems — and two things happened to it over the past year that most write-ups have not caught up with. **It is no longer one company's protocol**, it now lives under the Linux Foundation, and the summer 2026 specification **rewrote its architecture**. Meanwhile the number of vulnerabilities associated with it has more than doubled in a year.

Intermediate Everyone Explainer MCP Agents & Automation

Sep 13, 2026

Tool Use and Function Calling, Explained

Krisztian Eyssen, Krisztian Eyssen

Tool Use and Function Calling, Explained

The most common misconception about this topic can be refuted in one sentence taken from the vendor documentation: **the model does not call the tool.** It fills in a form and says which one it would like — the call is made by your code. Everything else follows from that: the cost, the error handling, and the reason a single round gets three times more expensive.

Advanced Developer Explainer Agents & Automation

Sep 13, 2026

What an Agent Actually Does, Step by Step

Krisztian Eyssen, Krisztian Eyssen

What an Agent Actually Does, Step by Step

An agent is not magic, it is **a loop**: it asks the model, performs an operation, reads the result back, and starts over. The complete control logic of a production agent that scores above 74% on a benchmark is **roughly a hundred lines of code**. This post walks through one real run — and shows where it breaks.

Beginner Everyone Explainer Agents & Automation

Sep 13, 2026

CVs, Applications and Interviews with AI, Done Honestly

Krisztian Eyssen, Krisztian Eyssen

CVs, Applications and Interviews with AI, Done Honestly

The line is not where most people look for it. AI detectors run at an accuracy of **33% to 81%**, and on **machine-translated human text** their false accusations average 11.1%, while on plain human text seven of them never accused anyone at all — and that is exactly what an applicant who drafts in their own language and then translates into English produces. Meanwhile 13 experiments with more than five thousand participants have shown that owning up to it **cuts trust by 16–20%** — and being found out cuts it further.

Beginner Everyone Explainer Work & Productivity

Sep 12, 2026

How AI Changed Programming

Krisztian Eyssen, Krisztian Eyssen

How AI Changed Programming

One of the most quoted measurements says you got 55.8% faster. Another says 19% slower. Neither is lying — they measured different jobs. And between the two sits the number that matters most: developers were **39 percentage points** wrong about their own speed.

Beginner Developer Explainer Coding & Development

Sep 12, 2026

AI Sales Agents and Outbound: Where It Breaks

Krisztian Eyssen, Krisztian Eyssen

AI Sales Agents and Outbound: Where It Breaks

Platform data covering 53 million cold emails shows that campaigns aimed at target groups under 200 people bring roughly twice the reply rate of those over 500. Which is the exact opposite of what automation promises. And that is only the arithmetic — the legal part is harder.

Intermediate Business owner Explainer Marketing & SEO

Sep 12, 2026

Zero-Click Search: What Happens to Your Traffic

Krisztian Eyssen, Krisztian Eyssen

Zero-Click Search: What Happens to Your Traffic

More than two thirds of searches end without a click. According to an independent behavioural study, one percent of users click a source inside an AI summary. Let's look at the numbers and at what can be done with them.

Beginner Marketer Explainer Marketing & SEO

Sep 12, 2026

What AI Really Changed in Marketing

Krisztian Eyssen, Krisztian Eyssen

What AI Really Changed in Marketing

87 percent of marketers feel more productive. Only 39 percent see their content performing any better. Those two numbers side by side show exactly where this actually stands.

Beginner Marketer Explainer Marketing & SEO

Sep 12, 2026

Labelling AI Video: Platform Rules and EU Duties

Krisztian Eyssen, Krisztian Eyssen

Labelling AI Video: Platform Rules and EU Duties

The EU duty has been in force since August 2026; it is not coming next year. What the fine actually tops out at, and who imposes it, is set country by country. Let's go through what has to be labelled, where, and what is a myth. (This is not legal advice.)

Intermediate Business owner Explainer Video & Audio

Sep 12, 2026

AI Music: What You Can Legally Use

Krisztian Eyssen, Krisztian Eyssen

AI Music: What You Can Legally Use

The biggest music generator replaced every one of its models in September 2026 and trained the new ones on licensed material — but not every rightsholder handed over the catalogue. That difference decides what you may do with the finished track. (This is not legal advice.)

Intermediate Creative Explainer Video & Audio

Sep 12, 2026

Voice Cloning: How It Works and What Is Allowed

Krisztian Eyssen, Krisztian Eyssen

Voice Cloning: How It Works and What Is Allowed

Thirty seconds of recording is enough to make somebody say anything in their own voice. The technology is finished — the rules are only settling now, and the legal hook is not the one most people reach for. (This is not legal advice; a specific case needs a lawyer.)

Intermediate Everyone Explainer Video & Audio

Sep 12, 2026

Native Audio in AI Video: What It Changed

Krisztian Eyssen, Krisztian Eyssen

Native Audio in AI Video: What It Changed

A year ago generated video was silent and you laid the sound under it yourself. On the leading models today the sound comes by default, in sync. That is what made short AI video usable at all — and it is where a new trap opened up.

Beginner Creative Explainer Video & Audio

Sep 12, 2026

1
2
3
4
5

Follow Us

Archives

Tags

Audience

Everyone Office worker Marketer Creative Business owner Developer

Category

AI Basics Safety & Risk Regulation & Policy Infrastructure & Chips Business & Deals Prompting Models & Market Writing & Content Images & Design Video & Audio Marketing & SEO Coding & Development Work & Productivity Agents & Automation Data, RAG & Self-Hosted AI Business, Law & Security

Format

How-To Explainer Comparison Tool review Recipe Template Troubleshooting Case study Glossary News

Level

Beginner Intermediate Advanced

Tool

OpenRouter Perplexity HeyGen ElevenLabs Suno Obsidian MCP n8n Ollama EYAS

Others

Odoo