All about Agentic AI


🧠 What is an AI Agent?
At its core, an agent is an AI system that can:
Perceive information from its environment (inputs, data, or context).
Decide what action to take based on its goal.
Act by carrying out that decision in the environment.
Unlike traditional AI models that simply predict outputs for a given input, agents go a step further: they reason, plan, and act iteratively.
For example:
A chatbot is a passive model that only responds to prompts.
An AI agent, on the other hand, could receive a prompt like “Book me a flight to Delhi next Monday”, then:
Search flight APIs,
Compare prices,
Book the ticket,
Send you the confirmation.
This shift from static responses to dynamic actions is the essence of Agentic AI.
⚒️ How Do AI Agents Work?
AI agents follow a general cycle often described as Perception → Reasoning → Action.
Input / Observation – The agent gathers data from the user, sensors, or APIs.
Reasoning / Planning – The agent uses a Large Language Model (LLM) or reasoning engine to decide the next steps. This often involves breaking down a big task into smaller actions.
Action / Execution – The agent performs tasks, which could be calling an external tool, writing code, fetching data, or interacting with another service.
Feedback Loop – The agent evaluates results and repeats the cycle until the goal is achieved.
This process makes AI feel more autonomous, as it can operate without step-by-step human guidance.
What are the advantages of agentic AI?
Agentic systems have many advantages over their generative predecessors, which are limited by the information contained in the datasets upon which models are trained.
Autonomous
Proactive
Specialized
Adaptable
Intuitive
The Role of Tools in Agentic AI
LLMs like GPT-4 or Gemini are powerful at reasoning and generating text, but they have limitations. They can’t directly:
Access the internet in real-time,
Run code securely,
Retrieve information from databases,
Control devices or APIs.
This is where tools come in.
What are AI Tools?
Tools are external capabilities that extend what an AI agent can do. Think of them as the agent’s hands and eyes.
Examples:
Search API → lets the agent look up real-time information.
Calculator → enables precise math (instead of text-based guessing).
Database connector → retrieves and stores structured data.
Code Interpreter → allows the agent to run Python code and analyze results.
When combined with reasoning, tools make AI agents much more practical and powerful.
Challenges for agentic AI systems
Agentic AI systems have massive potential for the enterprise. Their autonomy is their primary benefit, but this autonomous nature can bring serious consequences if agentic systems go “off the rails.” The usual AI risks apply, but can be magnified in agentic systems.
Many agentic AI systems use reinforcement learning, which involves maximizing a reward function. If the reward system is poorly designed, the AI might exploit loopholes to achieve “high scores” in unintended ways.
Consider a few examples:
An agent tasked with maximizing social media engagement that prioritizes sensational or misleading content, inadvertently spreading misinformation
A warehouse robot optimizing for speed that damages products to move faster.
A financial trading AI meant o maximize profits that engages in risky or unethical trading practices, triggering market instability.
A content moderation AI designed to reduce harmful speech over censors legitimate discussions.
Some agentic AI system can become self-reinforcing, escalating behaviors in an unintended direction. This issue happens when the AI optimizes too aggressively for a particular metric without safeguards. And because agentic systems are often composed of multiple autonomous agents working together, there are opportunities for failure. Traffic jams, bottlenecks, resource conflicts—all of these errors have the potential to cascade.
Agentic AI 🆚 Generative AI 🆚 Traditional AI
The wave of generative ai, exemplified by large language models and natural language processing, marked a significant leap forward, allowing machines to generate various forms of content, including code and text generation.
Feature | Agentic AI | Generative AI | Traditional AI |
Primary Function | Goal-oriented action & decision-making | Content generation (text, code, images, etc.) | Focused on automating repetitive tasks |
Autonomy | High – Operates with minimal human oversight | Variable – May require user prompts or guidance | Low – Relies on specific algorithms and set rules |
Learning | Reinforced Learning – Improves through experience | Data-driven learning – Learns from existing data | Relies on predefined rules and human intervention |
🤔 Why Agentic AI Matters
Agentic AI isn’t just about making chatbots smarter. It represents a step toward AI systems that collaborate with humans like co-workers.
Some real-world applications include:
Personal assistants → Managing emails, calendars, and bookings automatically.
Research agents → Reading papers, summarizing insights, and citing sources.
Developer agents → Writing, debugging, and deploying code.
Business automation → Handling repetitive workflows like report generation or CRM updates.
As we give agents access to more tools and better reasoning capabilities, they will increasingly function as autonomous problem solvers.
🤨 Final Thoughts
Agentic AI is not just a buzzword—it’s the next phase of AI evolution. By combining reasoning (from LLMs) with tools and autonomy, agents can perform complex multi-step tasks, saving time and enabling entirely new possibilities.
We’re entering an era where AI will act less like a calculator and more like a teammate. Understanding the concepts of agents, their working cycle, and the importance of tools is key for developers, researchers, and businesses aiming to harness the true potential of AI.
Subscribe to my newsletter
Read articles from Dipanjan Roy directly inside your inbox. Subscribe to the newsletter, and don't miss out.
Written by
