What is a rule-based chatbot?
A rule-based chatbot follows a script built in advance: it shows buttons or menus, or matches keywords, and gives a fixed answer for each path. It doesn't understand free text, so it only handles the questions its builder thought of.
Also called: scripted chatbot, decision-tree chatbot, button bot.
By Santhul Joseph, AI EngineerUpdated
How a rule-based chatbot works
- Someone draws a flow: a greeting, a few buttons, and branches behind each one.
- Every button or keyword leads to a fixed answer or the next step.
- Free text is matched against a keyword list. If nothing matches, the bot replies with something like "Sorry, I didn't understand".
- Every new question means editing the flow by hand.
Strengths and limits
- In its favour: it is predictable. It says exactly what you wrote, which suits fixed steps like choosing a department or confirming an address.
- Against it: customers rarely type the way the flow expects. "Can I bring my dog to the appointment?" falls straight through.
- Large flows get hard to maintain. A price change can mean updating the same answer in several branches.
Rules and AI together in SimplyBoost
SimplyBoost uses rules where they are the right tool. Instagram comment-to-DM rules fire on keywords you pick, matched as whole words, and handover triggers decide when a person takes over.
The conversation itself is handled by the AI agent. When someone writes back, it answers in their own words from your knowledge, so you don't have to script every question in advance.
Questions people ask
Is a rule-based chatbot better than an AI chatbot?
Neither is better for everything. Rules are reliable for fixed steps, and AI handles the open questions customers actually type. Many businesses use both.
Can a rule-based chatbot make things up?
No. It can only show answers someone wrote. The flip side is that it can't answer anything outside its script.
Can I move from a rule-based bot to an AI agent without starting over?
Usually, yes. The answers in your flows are already knowledge. In SimplyBoost you can add them as Q&A pairs or text snippets, add your website, and the agent answers from all of it.