AI Explorer
Ruohang Feng @Vonng / Agent, LLM, Database
Everything about AI, agents, LLMs, vibe coding, AI4DB and DB4AI.
Agent OS: We're Building DOS Again
LLM = CPU. Context = RAM. Database = Disk. Agent = App. The mapping is surprisingly clean. And if OS history is any guide, we may know what comes next — and what's still missing.
Claude Code Observability
Export Claude Code's OTEL logs and metrics to Victoria stack, visualize with Grafana dashboards.
Claude Code Quick Start: Using Alternative LLMs at 1/10 the Cost
How to install and use Claude Code? How to achieve similar results at 1/10 of Claude's cost with alternative models? A one-liner to get CC up and running!
Google AI Toolbox: Production-Ready Database MCP is Here?
Google recently launched a database MCP toolbox, perhaps the first production-ready solution.
In the AI Era, Software Starts at the Database
Future software = Agent + Database. No middle tiers, just agents issuing CRUD. Database skills age well, and PostgreSQL is poised to be the agent-era default.
Will AI Have Self-Awareness?
Large models can feel “aware,” but self-awareness is another matter. We explore the term from Buddhism, cognitive psychology, and neural nets, then riff on a possible AI religion after bingeing …
AI Cult Rhapsody
A tongue-in-cheek vision of an AI-worshipping religion: scriptures, sects, philosopher-king machines, and the Book of AGI.
Basic Principles of Neural Networks
Neural networks are inspired by how the brain works and can be used to solve general learning problems. This article introduces the basic principles and practice of neural networks.
Statistics Fundamentals: Descriptive Statistics
Statistical analysis is divided into two fields: descriptive statistics and inferential statistics. Descriptive Statistics is the technology for describing or characterizing existing data and is the …
Inferential Statistics: The Past and Present of p-values
The core of inferential statistics lies in hypothesis testing. The basic logic is based on an important argument from philosophy of science: universal propositions can only be falsified, not proven. …
Basic Concepts of Probability Theory
Basic knowledge notes on probability theory: axiomatic foundations, probability calculus, counting, conditional probability, random variables and distribution functions
Fundamentals of Information Theory: Entropy
Reading notes on 'Elements of Information Theory': What is entropy? Entropy is a measure of the uncertainty of random variables, and also a measure of the information needed to describe random …
Humans, Society, and Neural Networks
Neural networks emerged inspired by the human brain, so the operational mechanisms of human society also have various similarities and connections with neural network training. Some thoughts on …
Fundamental Concepts of Linear Algebra
Connecting all concepts in linear algebra through one main thread
Agent OS: We're Building DOS Again
2025 is the year of the coding agent explosion. Claude Code writes your code, runs your tests, fixes your bugs, and autonomously completes complex engineering tasks. It’s the second seismic shift since ChatGPT dropped. But watch how these agents …
2025 is the year of the coding agent explosion. Claude Code writes your code, runs your tests, fixes your bugs, and autonomously completes complex engineering tasks. It’s the second seismic shift since ChatGPT dropped. But watch how these agents …
Claude Code Observability
Yesterday I tweeted: “Built a Claude Code Grafana dashboard to see how it makes decisions, uses tools, and burns through API credits.” Didn’t expect so much interest. So let’s talk about Claude Code observability. Why Observability? Simple idea: I …
Yesterday I tweeted: “Built a Claude Code Grafana dashboard to see how it makes decisions, uses tools, and burns through API credits.” Didn’t expect so much interest. So let’s talk about Claude Code observability. Why Observability? Simple idea: I …
Claude Code Quick Start: Using Alternative LLMs at 1/10 the Cost
Claude Code Quick Start Guide In my 2025 Year in Review, I mentioned that Claude Code boosted my productivity by 20x over the past year. Some friends asked if I was exaggerating—not at all. If anything, I was being conservative. This thing is …
Claude Code Quick Start Guide In my 2025 Year in Review, I mentioned that Claude Code boosted my productivity by 20x over the past year. Some friends asked if I was exaggerating—not at all. If anything, I was being conservative. This thing is …
Google AI Toolbox: Production-Ready Database MCP is Here?
In “SaaS is Dead? In the AI Era, Software Starts with Databases”, Microsoft CEO Nadella once stated that in the Agent era, SaaS is Dead, and the future form of software will be Agent + Database. That is, Agents directly performing CRUD operations on …
In “SaaS is Dead? In the AI Era, Software Starts with Databases”, Microsoft CEO Nadella once stated that in the Agent era, SaaS is Dead, and the future form of software will be Agent + Database. That is, Agents directly performing CRUD operations on …
In the AI Era, Software Starts at the Database
WeChat The future stack is “Agent + Database.” No front-end/back-end toll booths—agents talk CRUD straight to storage. Database skills hold their value, and PostgreSQL is the database of the agent era. SaaS is dead? Software begins with the DB GenAI …
WeChat The future stack is “Agent + Database.” No front-end/back-end toll booths—agents talk CRUD straight to storage. Database skills hold their value, and PostgreSQL is the database of the agent era. SaaS is dead? Software begins with the DB GenAI …
Will AI Have Self-Awareness?
WeChat original Large models can appear conscious, but self-awareness is optional—and maybe dangerous before ethics catch up. Pantheon sparked these thoughts. What is self-awareness? When we say “self-awareness,” what do we actually mean? Let’s …
WeChat original Large models can appear conscious, but self-awareness is optional—and maybe dangerous before ethics catch up. Pantheon sparked these thoughts. What is self-awareness? When we say “self-awareness,” what do we actually mean? Let’s …
AI Cult Rhapsody
WeChat original “Humans are the bootloader for silicon life.” —Elon Musk Maybe we’re about to witness an AI-worshipping religion. Imagine this: Humans are lumps of negative entropy, hard-coded to reproduce via clumsy genetics. In digital space, with …
WeChat original “Humans are the bootloader for silicon life.” —Elon Musk Maybe we’re about to witness an AI-worshipping religion. Imagine this: Humans are lumps of negative entropy, hard-coded to reproduce via clumsy genetics. In digital space, with …
Basic Principles of Neural Networks
Neural networks are inspired by how the brain works and can be used to solve general learning problems. This article introduces the basic principles and practice of neural networks. Neural Network Representation Neuron Model Neural networks are …
Neural networks are inspired by how the brain works and can be used to solve general learning problems. This article introduces the basic principles and practice of neural networks. Neural Network Representation Neuron Model Neural networks are …
Statistics Fundamentals: Descriptive Statistics
Statistical analysis is divided into two fields: descriptive statistics and inferential statistics. Descriptive Statistics is the technology for describing or characterizing existing data and is the most fundamental part of statistics. 1. Statistics …
Statistical analysis is divided into two fields: descriptive statistics and inferential statistics. Descriptive Statistics is the technology for describing or characterizing existing data and is the most fundamental part of statistics. 1. Statistics …
Inferential Statistics: The Past and Present of p-values
The core of inferential statistics lies in hypothesis testing. The basic logic is based on an important argument from philosophy of science: universal propositions can only be falsified, not proven. The reasoning is simple: individual cases cannot …
The core of inferential statistics lies in hypothesis testing. The basic logic is based on an important argument from philosophy of science: universal propositions can only be falsified, not proven. The reasoning is simple: individual cases cannot …
Basic Concepts of Probability Theory
1. Set Theory Sample space and sample points are undefined basic concepts in probability theory, like the concepts of points and lines in geometry. Definition: Event Event: An event is a set of sample points. $A=0$ means event A contains no sample …
1. Set Theory Sample space and sample points are undefined basic concepts in probability theory, like the concepts of points and lines in geometry. Definition: Event Event: An event is a set of sample points. $A=0$ means event A contains no sample …
Fundamentals of Information Theory: Entropy
Information theory answers two fundamental questions in communication theory: The critical value for data compression: entropy HHH The critical value for communication transmission rate: channel capacity CCC But information theory’s content extends …
Information theory answers two fundamental questions in communication theory: The critical value for data compression: entropy HHH The critical value for communication transmission rate: channel capacity CCC But information theory’s content extends …
Humans, Society, and Neural Networks
Neural networks emerged inspired by the human brain, so the operational mechanisms of human society also have various similarities and connections with neural network training. This year, I dabbled in many other disciplines. Most were superficial …
Neural networks emerged inspired by the human brain, so the operational mechanisms of human society also have various similarities and connections with neural network training. This year, I dabbled in many other disciplines. Most were superficial …
Fundamental Concepts of Linear Algebra
Connecting all concepts in linear algebra through one main thread Vectors There are three perspectives on vectors: Physics perspective: A vector is an arrow with direction and magnitude Computer perspective: A vector is an ordered list Mathematical …
Connecting all concepts in linear algebra through one main thread Vectors There are three perspectives on vectors: Physics perspective: A vector is an arrow with direction and magnitude Computer perspective: A vector is an ordered list Mathematical …