No code ai agent builder tools that actually connect to real workflows, not just toy examples?

So I just spent the better part of a Friday afternoon trying to get a no code ai agent builder working for our HR onboarding process. The tool had a slick interface and the demo video made it look like anyone could set it up in an hour. Three hours later I had an agent that could answer a single pre-baked question about company holidays and nothing else. Every time I tried to connect it to our actual systems, either the integration was missing or it required a webhook setup that clearly assumed I had an eng