https://vinayc.me/notes/ Working notes on RAG, agents, LLM fundamentals, and systems design. en https://vinayc.me/notes/zero-token-architecture-ai-engineers-should-always-start-with-this/ https://vinayc.me/notes/zero-token-architecture-ai-engineers-should-always-start-with-this/ Sun, 19 Jul 2026 00:00:00 GMT This weekend I watched this talk on Zero Token Architecture: https://vinayc.me/notes/how-i-would-design-google-drive-at-scale-a-system-design-case-study/ https://vinayc.me/notes/how-i-would-design-google-drive-at-scale-a-system-design-case-study/ Sat, 18 Jul 2026 00:00:00 GMT Google Drive System Design By Vinay C infographic https://vinayc.me/notes/tabular-foundation-models-explained-the-missing-piece-i-didnt-know-existed/ https://vinayc.me/notes/tabular-foundation-models-explained-the-missing-piece-i-didnt-know-existed/ Fri, 17 Jul 2026 00:00:00 GMT Over the last few days, I spent some time reading about Tabular Foundation Models (TFMs). At first, I assumed they were just another machine learning model. Th… https://vinayc.me/notes/irctcs-redesign-what-may-have-changed-behind-the-scenes-to-handle-10x-scale/ https://vinayc.me/notes/irctcs-redesign-what-may-have-changed-behind-the-scenes-to-handle-10x-scale/ Thu, 16 Jul 2026 00:00:00 GMT IRCTC’s recent redesign caught my attention, but not because of the new UI. https://vinayc.me/notes/10-llm-application-patterns-you-must-know/ https://vinayc.me/notes/10-llm-application-patterns-you-must-know/ Wed, 15 Jul 2026 00:00:00 GMT When people talk about LLMs, the first thing that comes to mind is usually a chatbot. https://vinayc.me/notes/10-ai-agent-design-patterns-every-ai-engineer-should-know/ https://vinayc.me/notes/10-ai-agent-design-patterns-every-ai-engineer-should-know/ Tue, 14 Jul 2026 00:00:00 GMT Infographic 10 AI Agent Design Patterns Every AI Engineer Should Know https://vinayc.me/notes/system-design-interview-designing-seat-booking-for-bookmyshow/ https://vinayc.me/notes/system-design-interview-designing-seat-booking-for-bookmyshow/ Mon, 13 Jul 2026 00:00:00 GMT A common system design interview question is: https://vinayc.me/notes/what-is-llm-distillation-a-beginners-guide-with-examples/ https://vinayc.me/notes/what-is-llm-distillation-a-beginners-guide-with-examples/ Wed, 08 Jul 2026 00:00:00 GMT In case you are short on time, check out this infographic for quick summary. https://vinayc.me/notes/faiss-what-ai-engineer-needs-to-know/ https://vinayc.me/notes/faiss-what-ai-engineer-needs-to-know/ Mon, 06 Jul 2026 00:00:00 GMT If you've been paying attention to the AI space recently — especially with the explosion of LLMs and Retrieval-Augmented Generation (RAG) — you've probably hea… https://vinayc.me/notes/honest-guide-google-agent-development-kit-adk-for-beginners/ https://vinayc.me/notes/honest-guide-google-agent-development-kit-adk-for-beginners/ Sat, 04 Jul 2026 00:00:00 GMT A practical, code-first introduction to Google's ADK: what it is, the concepts, the building blocks, and a full runnable program at the end. https://vinayc.me/notes/best-pdf-parser-for-better-llm-and-rag/ https://vinayc.me/notes/best-pdf-parser-for-better-llm-and-rag/ Fri, 03 Jul 2026 00:00:00 GMT Your PDF parser is probably the real problem. https://vinayc.me/notes/okf-and-rag-what-i-learned-while-thinking-through-agentic-knowledge-systems/ https://vinayc.me/notes/okf-and-rag-what-i-learned-while-thinking-through-agentic-knowledge-systems/ Thu, 02 Jul 2026 00:00:00 GMT If you are short on time, go through this infographic, should give you most insights. https://vinayc.me/notes/honest-guide-langgraph-for-beginners/ https://vinayc.me/notes/honest-guide-langgraph-for-beginners/ Wed, 01 Jul 2026 00:00:00 GMT If you read my LangChain for Beginners post, you built your first create_agent and I told you it runs on something called LangGraph "under the hood." This post… https://vinayc.me/notes/honest-guide-langchain-for-intermediate/ https://vinayc.me/notes/honest-guide-langchain-for-intermediate/ Fri, 26 Jun 2026 00:00:00 GMT If you read my LangChain for Beginners post, you've already wired up a chat model, built an LCEL chain, done basic RAG, and stood up your first create_agent. Y… https://vinayc.me/notes/honest-guide-langchain-for-beginners/ https://vinayc.me/notes/honest-guide-langchain-for-beginners/ Thu, 25 Jun 2026 00:00:00 GMT If you've called an LLM API once or twice and thought "okay, but how do real apps wire this together?" — this post is for you. We'll start from the absolute ba… https://vinayc.me/notes/understanding-temperature-top-p-and-top-k-in-large-language-models/ https://vinayc.me/notes/understanding-temperature-top-p-and-top-k-in-large-language-models/ Thu, 18 Jun 2026 00:00:00 GMT When you ask a language model to write an answer, it does not simply “know” the next word. Instead, it predicts many possible next tokens and assigns each one… https://vinayc.me/notes/rag-pipeline-explained-how-retrieval-augmented-generation-makes-ai-answers-more-useful/ https://vinayc.me/notes/rag-pipeline-explained-how-retrieval-augmented-generation-makes-ai-answers-more-useful/ Wed, 17 Jun 2026 00:00:00 GMT Large language models are impressive, but they have a simple problem: they do not automatically know your private documents, your latest product specs, your in… https://vinayc.me/notes/what-is-an-ai-harness-and-why-does-it-matter-more-than-your-model-choice/ https://vinayc.me/notes/what-is-an-ai-harness-and-why-does-it-matter-more-than-your-model-choice/ Tue, 16 Jun 2026 00:00:00 GMT For a while, I thought picking an AI product came down to one question: which model is underneath? GPT, Claude, Gemini. Smarter model, better product. It seeme… https://vinayc.me/notes/mcp-architecture/ https://vinayc.me/notes/mcp-architecture/ Mon, 15 Jun 2026 00:00:00 GMT Most AI integrations today are custom builds. Your Claude instance needs access to your database? You write a connector. Your IDE needs the same data? You writ… https://vinayc.me/notes/fast-or-accurate-why-does-good-retrieval-use-two-models/ https://vinayc.me/notes/fast-or-accurate-why-does-good-retrieval-use-two-models/ Fri, 12 Jun 2026 00:00:00 GMT Let's say you ship a semantic search feature. Someone types "reset my password" and the top result is a doc about changing email settings. Are they related? Su… https://vinayc.me/notes/your-llm-has-no-memory-embeddings-are-the-fix/ https://vinayc.me/notes/your-llm-has-no-memory-embeddings-are-the-fix/ Thu, 11 Jun 2026 00:00:00 GMT Ask ChatGPT something today, and it only knows what fits inside its context window. So how does it "remember" your past chats, pull the right doc from a knowle… https://vinayc.me/notes/my-6-learnings-about-embedding-models-and-why-many-rag-systems-struggle/ https://vinayc.me/notes/my-6-learnings-about-embedding-models-and-why-many-rag-systems-struggle/ Fri, 23 Jan 2026 00:00:00 GMT Over the past few days, I’ve been spending time reading about embedding models—not just which ones rank highest, but how they actually behave in real systems l… https://vinayc.me/notes/llms-introduction/ https://vinayc.me/notes/llms-introduction/ Thu, 15 Jan 2026 00:00:00 GMT A comprehensive guide to understanding what LLMs are, how they work, and why they matter. https://vinayc.me/notes/rag-systems/ https://vinayc.me/notes/rag-systems/ Thu, 15 Jan 2026 00:00:00 GMT Key patterns and pitfalls when building retrieval-augmented generation systems at scale. https://vinayc.me/notes/3-common-llm-myths-which-was-surprising/ https://vinayc.me/notes/3-common-llm-myths-which-was-surprising/ Tue, 22 Jul 2025 00:00:00 GMT Large Language Models (LLMs) have truly transformed how we interact with technology and information. It's an exciting time, but with all this rapid progress, i… https://vinayc.me/notes/what-satya-nadella-taught-me-about-ai-and-developer-jobs/ https://vinayc.me/notes/what-satya-nadella-taught-me-about-ai-and-developer-jobs/ Tue, 22 Apr 2025 00:00:00 GMT In today’s fast-paced tech world, it’s easy to get caught in the hype or fear around artificial intelligence. But after lately watching a bunch of videos of ou… https://vinayc.me/notes/demystifying-aws-messaging-sns-vs-sqs/ https://vinayc.me/notes/demystifying-aws-messaging-sns-vs-sqs/ Wed, 15 Nov 2023 00:00:00 GMT In the ever-expanding world of cloud computing, Amazon Web Services (AWS) provides a suite of services to build scalable and resilient applications. Two key pl… https://vinayc.me/notes/battle-for-serverless-supremacy-google-cloud-run-vs-google-cloud-functions/ https://vinayc.me/notes/battle-for-serverless-supremacy-google-cloud-run-vs-google-cloud-functions/ Fri, 10 Nov 2023 00:00:00 GMT In the rapidly evolving landscape of cloud computing, Google Cloud Platform (GCP) stands out with a diverse array of services tailored to meet the needs of dev… https://vinayc.me/notes/making-movie-magic-how-netflix-uses-amazon-web-services/ https://vinayc.me/notes/making-movie-magic-how-netflix-uses-amazon-web-services/ Thu, 02 Nov 2023 00:00:00 GMT Picture this: you're curled up on the couch, about to dive into your favourite show on Netflix. https://vinayc.me/notes/bloom-filters-a-space-efficient-data-structure/ https://vinayc.me/notes/bloom-filters-a-space-efficient-data-structure/ Thu, 19 Oct 2023 00:00:00 GMT In the world of data management, efficiency is key. Whether it's minimizing memory usage or optimizing search operations, every bit and byte counts. Enter the…