AI Knowledge

AI agents in business: what they can and can't do

The term is used for everything. What actually lies behind it and where the line to automation runs.

As of 2026For decision-makers without technical background
In short

The difference from automation is the decision about the next step. Automation follows a fixed workflow. An agent decides what to do next based on the intermediate result, and can call tools in the process.

01

What makes an agent

The difference from automation is the decision about the next step. Automation follows a fixed workflow. An agent decides what to do next based on the intermediate result, and can call tools in the process.

02

Where that's useful

For tasks with many possible paths: processing an inquiry where different systems need to be queried depending on the content. A fixed workflow would have to anticipate all cases.

03

Where it does harm

Everywhere the workflow is fixed. An agent for a task with three possible paths is more expensive, slower, and less predictable than three if-then rules.

04

The control question

Every agent needs boundaries: which tools it may use, how many steps it may take, and when a human decides. Without these boundaries, you create a system whose costs and behavior no one can predict.

05

What an agent costs when nobody has set limits

Without an upper limit on steps, an agent can get stuck in a loop and call the language model again with every attempt — that only becomes visible on the invoice, not in operations itself. A hard upper limit on steps and a time limit therefore belong from the start, not as a retrofit safeguard.

Questions

Frequently asked questions

Does every business need an AI agent?

No, most business tasks are structured enough that classic automation is sufficient — cheaper, faster, more predictable. An agent only makes sense when the workflow itself isn't fixed in advance.

How much does an agent system cost in a business?

Significantly more than simple automation, because every intermediate step means a model call. For most use cases in small businesses, that isn't necessary — a hard-wired workflow with an AI component at the start is almost always enough.

What happens if the agent makes a wrong decision?

That depends on the boundaries you set for it. Without a defined escalation threshold, an error continues unnoticed. That's why every agent needs a point where a human reviews the result before it takes effect.

How do you start with agents without losing focus?

With a single, narrowly limited task and a hard upper limit on steps and tools. Anyone who immediately builds a system that regulates everything autonomously loses control over costs and behavior.

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