AI AGENTS
When a workflow does not need AI
Most business workflows do not need AI. They need a rule. NEVDEV in Phuket explains how to tell the difference, with examples of where a plain automation beats an AI agent and where it does not.
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Most of the workflows businesses ask us to automate with AI do not need AI. They need a rule. A rule does the same thing every time, costs almost nothing to run, and never makes something up. AI is for the part of the job where the input is messy and a human would have to read it and decide.
NEVDEV builds both, for businesses in Phuket and abroad, and we will tell a client when a workflow does not need a model. This is how we decide.
The test
Ask one question: could you write down exactly what should happen, for every case, on one page?
If yes, it is a rule. "When a booking is paid, send the confirmation and add it to the calendar" is a rule. "When an invoice is ten days overdue, send reminder one" is a rule. No AI needed, and adding one makes it slower, more expensive and less predictable.
If no, because the input is a message written by a person, or a photo, or a document that comes in a hundred different shapes, that is where AI earns its place.
Things that should be rules
- Sending confirmations, receipts and reminders
- Moving a lead from one stage to the next when something happens
- Copying data from the website form into the CRM
- Posting the morning summary of yesterday's numbers
- Flagging anything over a set amount for approval
Things that need AI
- Reading an enquiry and working out what the person is actually asking
- Drafting a reply in the business's voice from its own information
- Sorting a messy inbox into what needs a person and what does not
- Pulling the details out of a document that arrives in a different format every time
- Answering questions on a website at 11pm from a knowledge base
Why this matters for the bill
A rule runs for fractions of a cent. A model call costs more, takes longer, and once in a while gets it wrong in a way a rule never would. If a workflow runs a thousand times a day, the difference is real money and real risk. Putting AI where a rule would do is the most common way we see businesses overpay for automation.
Most real workflows are both
The usual shape is: a rule notices something happened, AI reads the messy part, and a rule does what comes next. An enquiry arrives (rule). The agent works out what they want and drafts a reply (AI). If it is a price question the draft goes straight out; if it is a complaint it goes to a person first (rule).
NEVDEV designs the workflow first and only then decides which steps get a model. It is cheaper, it is easier to trust, and when something goes wrong the team can see exactly which step did it.