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Building Agentic AI Framework: Architecture & Key Components 

Written by Dr. Jagreet Kaur | 31 July 2025

What is Agentic AI? 

Agentic AI is related to a class of artificial intelligence systems that possess the ability to operate independently in the real world, make decisions, and take actions to achieve a goal, when appropriately commanded to do so.  Agentic AI is not simply reactive, but is capable of progressive thought, assessing environments, setting its own objectives, planning behaviors, and acting independently. An agentic AI in fact has autonomy, perception, reason, and adaptability to act rationally in a changing context. 

The word agentic stems directly from agent which represents a system performing operations on behalf of an individual or organization. Software agents that function independently through environments by collecting input and performing both decision-making and task execution without significant human supervision define agentic AI systems.  

The Evolution from Traditional AI to Agentic Systems and Why They Matters Today 

Feature 

Traditional AI 

Agentic AI 

Decision-making 

Predefined rules or learned patterns 

Goal-oriented, adaptive decision-making 

Reactiveness 

Mostly reactive 

Proactive and autonomous 

Learning Ability 

Limited, retrained models needed 

Continuous learning and adaptation 

Complexity Handling 

Works in structured environments 

Handles dynamic and uncertain environments 

Human Intervention 

Often required 

Minimal to no human input needed 

It is important to understand that the more traditional forms of Artificial Intelligence are based on set rules or on a set model and limited to their scope. These systems are ideal for environments that have known parameters, for example, object detection, sorting data or simple recommendation systems.  

In contrast, agentic AI systems are made to go beyond this restriction. They can deal with the complexities of the real-world environment by being able to undergo dynamic decision-making, experience-based learning, and adaptation to new problems. The distinction appears in its level of autonomy. Traditional AI is mostly reactive (as it reacts to the provided input with programmed logic). Agentic AI is generally pro-active, meaning it can take actions on its own to realize long-term goals.  

The induction of agentic systems to traditional AI represents an induction into increased intelligence, flexibility, and scalability, which leads to more complex applications and advancements through all domains of life such as healthcare, robotics programs, finance, and customer interactions. 

The introduction of agentic AI is at a time when technology is developing rapidly with increased demand for outsourcing and automation. Thus, more and more businesses are in search of practices to optimize processes, make adequate decisions, and increase customer satisfaction – all of which can be achieved by means of deploying intelligent systems capable of operating independently. 

Foundational Principles of Agentic AI 

Fig. 1 Foundational Principles of Agentic AI 

Autonomy and Agency  

The core concept of agentic AI is autonomy- the ability to function without continual human supervision. Autonomy doesn't suggest completeness rather represents the ability to assess objectives, make decisions, and carry out actions while remaining within bounding constraints. Agency suggests intentionally in that the functioning system pursues its actions in alignment with intended objectives.  

Goal-Directed Behavior 

In contrast to reactive AI, which only reacts to inputs, agentic AI seeks goals. For example, logistics software might optimize delivery routes not just based on the present traffic conditions, but it might anticipate delays in traffic and/or customer preferences down the road to expedite completion of the task. To achieve this type of goal, the software will transition from recognizing patterns to strategizing. 

Environment Perception and Interaction 

Agentic systems have to observe their environment, be it digital or physical, through APIs, active (or passive) sensors, or data streams. In addition to mere observation, agentic systems actively interact with their environment: they may send email, modulate a workflow, or even control a hardware actuator.  

Learning and Adaptation Capabilities 

Continuous learning is crucial. Agentic AI self-improves based on experience, responding to new information, user feedback, or unforeseen adversity. Its ability to adapt differentiates it from fixed models, allowing resilience in uncertain environments. 

Core Architectural Components 

Fig. 2 Core Architectural Components  

Perception Modules 

These are represented for obtaining and analyzing information about the environment. This may be video, such as from CCTV cameras, audiovisual from microphones, or even just other sensors, depending on what the system is actually meant to do. 

Memory Systems (Working, Episodic, Semantic) 

There are additional requirements that need to be satisfied to obtain an acceptable human-like performance, including a type of memory that will allow to emulate some type of human-like cognitive process. Speaking of a memory, you would also need to discuss different types of memory systems in use:  

  1. Working memory: This involves information processing of information that has immediate relevance or importance, before the agent can process more worthwhile, relevant, or suitable information to produce an output.  

  2. Episodic memory: This stores information from events experienced in the past to aid the agent in establishing correct action for the future, because she has learned from what she has experienced in the past.  

  3. Semantic memory: This is the part of memory that offers a general body of information in the world to assist in the formation of abstract ideas or facilitate an overall perspective of the knowledge. 

Reasoning Engines 

The reasoning engines offer the cognitive capability for decision-making in agentic systems. The reasoning engine enables the agent to evaluate different possible actions, understand cause-and-effect, and problem-solve through logical inference. The reasoning engine may use methods from symbolic reasoning, probabilistic reasoning, or other sophisticated cognitive models. 

Planning and Decision-Making Mechanisms 

Planning and decision-making mechanisms enable agentic systems to design a multi-step sequence of moves or actions to achieve a goal. This process involves contemplating multiple possible, potential outcomes, analyzing risk, and ultimately selecting the best course of action. These mechanisms are inextricably linked to machine learning algorithms, as machine learning allows for the agent to continually revise its plan and act while parsing data. 

Action Execution Systems 

After a decision is made, the action implementation mechanism completes the necessary acts. This may include physical acts (as would be seen in moving a robotic arm) or virtual actions (like processing information or sending a message). The mechanism must provide fast and reliable execution of actions to maintain autonomy.  

Key Technical Building Blocks 

Large Language Models as Foundation 

LLMs (i.e., GPT, BERT, T5) have been the backbone of agentic AI, especially for applications that leverage natural language processing. LLMs enable agents to process language inputs that may be sophisticated in nature, converse with systems, and make decisions based on textual information.  

Tool Use and API Integration 

To interact effectively with the world, agentic AI will often need the ability to integrate with external tools and systems. API integrations can facilitate this, allowing an agent to take advantage of services, such as cloud computing, databases, and external software platforms, to accomplish its objectives. 

Prompt Engineering and Chain-of-Thought Processing 

Effective agentic systems often make use of prompt engineering to facilitate their decision-making. Through effective prompt engineering, the agent can be led to reason in a structured, step-by-step manner (i.e. chain-of-thought reasoning). This method improves the model's reasoning performance, particularly when the task is complicated and requires a chain of dependent decisions.  

Retrieval-Augmented Generation (RAG) 

RAG leverages the retrieval capabilities of retrieval-based systems with the generation capabilities of generative models, permitting agents to retrieve information from external sources relevant to the query before generating their response. RAG is very useful for building systems that rely on knowledge or up-to-date data in knowledge-heavy domains. 

Self-Reflection and Error Correction 

A strong agentic system should be able to self-reflect and recognize when it makes a mistake or needs to correct the assumptions. With embedded error correction tools, agents can become more dependable and proficient over time in completing tasks.  

Safety and Control Mechanisms 

Alignment Techniques 

Alignment refers to the action of agentic AI systems and hopefully, it will align with human values and goals. Alignment requires building AI systems that can "see" or "know" what humans want (i.e., human preferences) and then act in ways that align with our values or preferences, in a way that could be broadly characterized as being ethical or socially congruent. 

Guardrails and Constraints 

Boundaries and constraints are mechanisms of safety that prevent AI agents from doing bad things or unwanted outcomes. Boundaries can be used to constrain what the agent can do and/or cannot do. Constraints can even involve having a monitoring system intervene in the event of going astray from expected agent's actions. 

Human-in-the-Loop Supervision 

Human-in-the-loop (HITL) supervision guarantees that people are able to monitor and, if needed, intervene in the decision-making if needed. HITL supervision is important in safety-critical applications, like health care or autonomous driving, where human oversight is needed to avoid significant failures.  

Implementation Strategies 

  • Selecting the Right Foundation Models - Select a model based on the complexity of the task, a smaller model is preferred for a simple automation task, while large models are preferred for tasks that are more reasoning intensive. There are tradeoffs between open-source options, like LLaMA, and proprietary options, like the GPT series, in terms of cost and performance. 

  • System Integration Approaches - System integration refers to linking the different parts of the agentic AI system such as acquisition, storage of information within memory, analysis and decision-making. 

  • Infrastructure Requirements - An efficient and practical agent AI entails a strong framework that can support substantial computation, model training, and execution of decisions.  

  • Scaling Considerations - One of the great issues when it comes to agentic systems is how to manage and scale them to contain multiple functions and capabilities as well as grow larger in size.  

Performance Evaluation 

  • Metrics for Agentic Systems - Systems Success can be evaluated by the dimensions of accuracy, efficiency, adaptability, and user satisfaction. Additionally, domain-specific metrics—such as profit earned for business agents may also be used. 

  • Benchmarking Methodologies - Furthermore, advances such as the recently prepared BIG-bench benchmarks and other customized simulations can be used to evaluate broad dimensions of reasoning, planning, and robustness if the performance is compared to human-like performance in providing context.  

  • Continuous Improvement Cycles - Finally, there is a continuous improvement cycle where data is collected, models are improved and are redeployed in a sequence that helps emulate the way humans learn and, therefore, improve performance over time. 

Real-World Applications and Case Studies 

  • Enterprise Automation - Agents automate aspects of workflows, ranging from HR onboarding to supply chain optimization, to help reduce costs and errors. 

  • Personal Assistants - Advanced personal assistants are now able to schedule the meeting and research the topic and even negotiate on behalf of the user. What is more astounding is that the agent takes the initiative to do something.  

  • Research and Innovation Agents - Agents accelerate research discovery by hypothesizing, running a simulation, synthesizing experience drug discovery or climate modeling come to mind. 

Future Directions and Challenges 

Emerging Research Areas 

The future of agentic AI is evolving with advances in multi-agent approaches, reinforcement learning, and hybrid decision-making frameworks that blend symbolic reasoning with machine learning paradigms. The aim of these developments is to improve cooperation, decision-making, and logical reasoning across complex situations. Additionally, there is an increased effort to pair AI with robotics to address physical tasks in the real world, allowing agents to physically interact with their environments across a range of scenarios, including the manufacturing industry and day-to-day activities at home.  

Limitations of Current Approaches 

There are obstacles to the current agentic AI systems which include limited generalization ability, ethical issues, and constraints with operation in highly uncertain environments. For example, agentic AI will often fail to apply knowledge learned across a domain outside that specific domain of use, raise concerns of fairness and bias, and ultimately face unknown situations of unpredictability and ambiguity without assistance. Addressing these challenges will be important for both advancing the study of AGI systems and maintaining their go-to applicability and trust level. 

Regulatory and Societal Implications 

As agentic AI becomes integrated into daily life, so too will regulatory and societal questions about privacy, accountability, and safety for the general user. This means governments and organizations will support frameworks to assure privacy for user data, define accountability for autonomous actions, and ensure its safe existence in domains of delivery health care and transportation. 

The Path Towards AGI 

The aim of research into agentic AI is the development of artificial general intelligence (AGI) a form of AI that can actually learn and understand knowledge and apply that knowledge across a wide variety of problems. Reaching this goal will take a number of different advances. 

  • Cross-Domain Knowledge Transfer: AGI will allow agents to transfer knowledge between unrelated domains, such as using physics reasoning in economics. The current systems employed do not provide the flexibility to apply for diverse epistemological challenges.  

  • Self-Supervised Learning Development: Progress toward AGI will also depend on self-supervised learning, where agents start identifying patterns and goals with little human labeled data and agentic AI would continue to grow their understanding and capacity in an ongoing, human-like fashion.