Ujjwal Khadka

Overview of MCP: an open protocol to let AI models interact with external tools via a consistent interface; describes client-server architecture, tool selection, JSON-schema validated tool calls and workflow integration.

Documentation and notes covering ALITA, RAG-MCP and insights from AI World's Fair 2025, including agentic systems, MCP registry ideas, observability and multi-model/tool integration topics.

Explains different short-term and long-term memory patterns in LangChain and LangGraph (ConversationBufferMemory, ConversationSummaryMemory, VectorStoreRetrieverMemory, Redis/Mongo histories), tradeoffs and practical considerations.

A step-by-step tutorial on fine-tuning LLMs (using PEFT/LoRA) for the summarization task, covering dataset preprocessing, training setup with Hugging Face Trainer, and evaluation.

A practical tutorial for installing and running Apache Airflow locally on macOS (conda/virtualenv steps, AIRFLOW_HOME setup, initdb, webserver and scheduler commands).