Voice AI Agents

Confessions from Building 100 AI Agents: What Works (and What Doesn’t)

This is the honest version. No fluff. No hype. Just what actually happens when you embed AI into the messiness of real, everyday business.

April 3, 2025

Confessions from Building 100 AI Agents: What Works (and What Doesn’t)

I Didn’t Start as an AI Guy

I’ll be honest - I'm not a machine learning PhD. I came into this with a background in building tech for real businesses, not writing whitepapers.

My first AI agent? It was cobbled together with duct tape, Zapier, and a very hacky phone integration. It sort of worked, kind of sounded human, and definitely made a few people hang up.

Now? I’ve built agents that book thousands of pounds worth of appointments and operate 24/7 without blinking. But the path from there to here wasn’t smooth - and that’s what this post is about.

AI Isn’t Magic—It’s Logistics

Everyone thinks AI is about writing clever prompts or getting it to sound human.

What no one tells you is that the hardest part is setting up the flow around the AI:

  • Where does the call go if it fails?
  • Who’s notified?
  • How do you make sure the business knows what the AI just said?

Early on, I made the mistake of shipping “cool” AI agents with no proper escalation path. One got stuck in a loop with a frustrated caller for 6 minutes. I learned quickly: the AI is just one part. Everything around it has to work too.

Most Business Owners Don’t Want AI

This was a surprise to me.

They don’t want “AI.” They want fewer missed calls. More bookings. Better service. AI just happens to be the way to get there.

Once, I spent 10 minutes explaining natural language models to a restaurant chain owner. He stopped me and said, “Can this just stop the phone ringing while we serve clients?”

That stuck with me.

Now I skip the jargon and go straight to the outcome.

The Best Agents Are Stupid Simple

I built some really clever agents early on. Multi-step logic trees, fallback prompts, intent switching. And you know what? They broke more than they helped.

The best AI agents I’ve deployed are boring:

  • They have specific task/job-role that they are keenly trained on.
  • They collect and log key data from the caller.
  • They offer 2-3 clear actions to the caller (make a booking, request callback, provide support).
  • They escalate to humans when needed

That’s it.

You can always add complexity later. But early on, simplicity wins.

I’ve Had to Apologize to Customers (A Lot)

This is one of those things no one puts in the pitch deck.

AI messes up. It says the wrong thing. Mishears a booking time. Gets someone’s name wildly wrong.

And if you’re running this as a service (like I am), that’s on you.

So I’ve learned to build systems that:

  • Let humans jump in easily
  • Log everything (every call, every mistake)
  • Let me apologize fast and fix things quicker

It’s not about perfection - it’s about ownership. Like anyone training a new staff member.

Most Wins Come From the Unsexy Stuff

The biggest impact hasn’t come from the fanciest tech. It’s come from:

  • Sending post-call SMS confirmations and/or emails
  • Matching the AI’s tone to the brand's voice
  • Training, testing, adjusting.

It’s boring. But it builds trust.

That’s the key. You’re not building a robot. You’re building a little piece of trust that represents a real person’s livelihood.

I’ve Seen the Real Impact - and That’s Why I’m Hooked

I’ve watched a solo salon owner double her bookings. I’ve helped a family-run restaurant finally stop worrying about missed calls. I’ve seen businesses look bigger, act faster, and sound more professional - all because of a voice on the other end that never sleeps.

Is it perfect? No.

But damn if it isn’t useful!

If you’re building AI agents (or thinking about it), my advice is simple: Make it boring. Make it work. Then make it smart.

You’ll save yourself a lot of stress - and your clients will love you for it.

About the Author

I’m the founder of Megabite—a company that builds real-world AI agents for real-world businesses. We’ve built 100+ AI systems for salons, restaurants, service pros, and beyond. If you want to talk about building smarter, simpler, more reliable AI systems - Try our Live AI Call Demo