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A Step-by-Step Guide for Developing Your Personal Agentic System.

A complete guide to learn how to set up and create your own agentic LLM system with local databases and specialized for your task.

36 min readJun 12, 2026

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Your new agentic team is ready for you. (image by author)

The use of agentic systems is becoming the go-to when automating complex tasks. As a data scientist, you need to keep up and learn the new paradigm of automation, one in which natural language becomes the primary interface for computation. Once you have seen this new concept, you will realize that the real challenge is an engineering problem: creating reliable, structured, and reproducible systems around probabilistic models. The goal is to learn how to design agentic systems that can reduce repetitive cognitive workload and assist with human tasks more efficiently and consistently.

Throughout this blog, you will learn about the emerging concept of the LLM Operating System (LLMos), in which the language model serves as the central reasoning engine, orchestrating tools, memory, retrieval, and multiple specialized agents. Then you will dive into the real, practical designs to build trustworthy agentic pipelines. By the end, you will have built your own lightweight multi‑agent system using the Python library LLMlight that runs locally and…

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Erdogan T
Erdogan T

Written by Erdogan T

Machine Learning | Statistics | Bayesian Causality | D3js | Data Science | Ph.D | erdogant.github.io

Data Science Collective
Data Science Collective

Published in Data Science Collective

Advice, insights, and ideas from the Medium data science community