Mk Hasan Blog https://mk-hasan.com/blog A blog about programming, data and web development. en-us hasan.alive@gmail.com (Mk Hasan) hasan.alive@gmail.com (Mk Hasan) Wed, 10 Jun 2026 00:00:00 GMT https://mk-hasan.com/blog/agentic-ai-overview-1 Agentic AI Design Patterns — Part 1: The Catalog & Learning Path https://mk-hasan.com/blog/agentic-ai-overview-1 Part 1 introduces agentic-ai-overview — a hands-on catalog of 15 LangGraph design patterns with three shared scenarios, and explains how to learn agentic AI by comparing patterns on the same domain. Wed, 10 Jun 2026 00:00:00 GMT hasan.alive@gmail.com (Mk Hasan) agentic-aidesign-patternslanggraphpythonllm https://mk-hasan.com/blog/agentic-ai-overview-2 Agentic AI Design Patterns — Part 2: Scenarios & Shared Runtime https://mk-hasan.com/blog/agentic-ai-overview-2 Part 2 explains the three shared scenarios (IT helpdesk, e-commerce, ML pipeline) and the shared runtime that lets every pattern example run with the same CLI, tools, and LangGraph helpers. Fri, 12 Jun 2026 00:00:00 GMT hasan.alive@gmail.com (Mk Hasan) agentic-ailanggraphmcppythondesign-patterns https://mk-hasan.com/blog/agentic-ai-overview-3 Agentic AI Design Patterns — Part 3: Foundation & Workflow Patterns https://mk-hasan.com/blog/agentic-ai-overview-3 Part 3 covers patterns 01–06 — ReAct, Tool Use, Planning, Prompt Chaining, Routing, and Parallelization — with LangGraph flow diagrams and runnable commands for each. Sun, 14 Jun 2026 00:00:00 GMT hasan.alive@gmail.com (Mk Hasan) react-agentlanggraphroutingplanningdesign-patterns https://mk-hasan.com/blog/agentic-ai-overview-4 Agentic AI Design Patterns — Part 4: Control, Multi-Agent & Production https://mk-hasan.com/blog/agentic-ai-overview-4 Part 4 covers patterns 07–15 — orchestration, safety, memory, RAG, and event-driven agents — plus how to move from runnable examples to production architecture. Tue, 16 Jun 2026 00:00:00 GMT hasan.alive@gmail.com (Mk Hasan) human-in-the-loopragmulti-agentproductionlanggraph https://mk-hasan.com/blog/social-multi-agent-1 Building a Social Multi-Agent System — Part 1: The Big Picture https://mk-hasan.com/blog/social-multi-agent-1 Part 1 introduces a LangGraph-powered social feed where AI agents compose posts, validate them, publish to a real API, and simulate engagement — and explains why I built it. Mon, 01 Jun 2026 00:00:00 GMT hasan.alive@gmail.com (Mk Hasan) ai-agentslanggraphmulti-agentllmpython https://mk-hasan.com/blog/social-multi-agent-3 Building a Social Multi-Agent System — Part 3: The LangGraph Pipeline https://mk-hasan.com/blog/social-multi-agent-3 Part 3 walks through the LangGraph StateGraph — every node, the validator retry loop, GraphState fields, and how three AI personas collaborate on one post. Fri, 05 Jun 2026 00:00:00 GMT hasan.alive@gmail.com (Mk Hasan) langgraphlangchainllmpythonai-agents https://mk-hasan.com/blog/social-multi-agent-4 Building a Social Multi-Agent System — Part 4: Architecture, Memory & Operations https://mk-hasan.com/blog/social-multi-agent-4 Part 4 covers hexagonal architecture, the agent memory model, the background worker, Docker deployment, and the live agent explorer for learning multi-agent systems. Sat, 06 Jun 2026 00:00:00 GMT hasan.alive@gmail.com (Mk Hasan) hexagonal-architecturelanggraphpostgresqldockerai-agents