What are the parts of an AI agent?
| Part | What it does |
|---|---|
| Model | Understands language and decides the next step (for example GPT, Claude or Gemini). |
| Instructions | The agent's role, goals, tone and rules. |
| Tools | Actions it can take: search, read a database, create a ticket, send a message, book a meeting. |
| Knowledge | Approved information it can look up, often through retrieval (RAG). |
| Memory | What has happened so far in the conversation or task. |
| Guardrails | Limits, approvals, logging and hand-off to people. |
What types of AI agents are there?
- Conversational agents — talk with customers or staff on a website, WhatsApp or by voice.
- Task agents — complete a defined job such as processing an invoice or updating records.
- Research agents — collect and summarise information from approved sources.
- Multi-agent systems — several specialised agents that work together (see multi-agent AI).
How do businesses use AI agents?
Common uses are lead qualification and follow-up, customer support, intake and triage, document processing, internal knowledge assistants and operations tasks that move data between systems. More examples are in how businesses use AI agents.
Example: NOVA, the AI agent on this website
NOVA, the agent on agenticaitechhub.com, understands what a visitor wants to build, asks follow-up questions, recommends services from approved company information, estimates a project from our price bands and — only after the visitor confirms — passes the request to our team. It does not invent facts or claim actions it has not taken.
Frequently asked questions
Is ChatGPT an AI agent?
A chat assistant answers in conversation. When it is given tools and allowed to take multi-step actions toward a goal, it behaves as an agent.
Can an AI agent work with my existing software?
Yes, usually through the APIs of the tools you already use, such as CRMs, databases, email, WhatsApp or internal systems.
How long does it take to build an AI agent?
A focused agent with one or two integrations often takes one to two months; agents with several integrations usually take three to four months. A discovery call sets the real timeline.