How are you, hacker? 🪐Want to know what's trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. ## Introducing Agentic Postgres, the Database for AI Agents By @tigerdata [ 4 Min read ] Tiger Data launches Agentic Postgres, the database built for agents. Instant database forks, native vector + BM25 search, MCP for AI agents. Start Free. Read More. StudyPro Evolves Into StudyAgent: From AI Writing Tool to Personal AI Study Assistant By @studyagent [ 2 Min read ] StudyPro has officially rebranded to StudyAgent, signaling its evolution into a complete AI-powered study assistant for students, educators, and researchers. Read More. Best AI Visibility Tools for 2025 By @erikronson [ 8 Min read ] An exhaustive guide to AI visibility tools written by someone who has tried all of them. Read More. The Complete Guide to Mega Productivity With Perplexity Comet (100 Shortcuts + 40 Prompts) By @sidsaladi [ 19 Min read ] Perplexity’s Comet browser changed how I work—AI-powered, distraction-free, and built for productivity, not ad clicks. Read More. Tool Calling for Local AI Agents in C# By @lcarrere [ 12 Min read ] LM-Kit .NET SDK now supports tool calling for building AI agents in C#. Read More. Inside X-VPN’s Verification Process: Internal Review of Blind In/On‑Path Risks By @sandramitchell [ 3 Min read ] X-VPN’s internal review finds no user data leaks in Blind In/On-Path tests; Android routing behavior, not VPN flaws, caused observed signals. Read More. Can ChatGPT Outperform the Market? Week 10 By @nathanbsmith729 [ 4 Min read ] New high of 32%… Read More. A Critical Review of Universal Basic Income as a Response to Technological Unemployment By @escholar [ 4 Min read ] UBI promised to protect workers from automation. But real-world experiments reveal its flaws—and point to smarter policy alternatives. Read More. Grokipedia: The Coming War with Wikipedia for the World's Knowledge By @nofacetoolsai [ 4 Min read ] Discover Grokipedia; Elon Musk's bold challenge to Wikipedia. Explore how this open-source knowledge repository could reshape the future of information and AI. Read More. ChatGPT Is Not Just a Tool; It's a Mirror for How You Think By @ujutheanalyst [ 3 Min read ] ChatGPT isn’t magic it’s a mirror for how we think. I have learned that better prompts aren’t about hacks, they are about precision,patience and fine tuning Read More. System Design in a Nutshell By @amanila [ 59 Min read ] Know system design fundamentals: UX components, databases, scaling strategies, security & compliance. Essential guide for developers & system design interviews. Read More. AI Bubble and the Free Market By @id [ 5 Min read ] The dominance of a few large firms exemplifies an oligopolistic market structure. These companies have significant market power, allowing them to set prices Read More. AI Coding Tools (MCP-series) By @neomatrix369 [ 3 Min read ] Complete guide to setting up Model Context Protocol (MCP) servers across Claude Desktop, Claude Code, and Cursor. Commands, comparisons, and best practices. Read More. Designing Production-Ready RAG Pipelines: Tackling Latency, Hallucinations, and Cost at Scale By @nileshbh [ 13 Min read ] Build production-grade RAG: slash latency, reduce hallucinations, and cut costs with hybrid retrieval, caching, LLM-as-judge, and smart model routing. Read More. Weekly AI Startup Funding: October 12-19, 2025 By @aifundingtracker [ 9 Min read ] AI startups raised over $2.4 billion this week across enterprise infrastructure, healthcare innovation, and fintech. Read More. Can ChatGPT Outperform the Market? Week 8 By @nathanbsmith729 [ 4 Min read ] New high of +30%… Read More. Weekly AI Startup Funding: October 5-11, 2025 By @aifundingtracker [ 8 Min read ] AI startups raised over $4.1 billion this week, with watershed moments in open-source AI, legal technology, and energy infrastructure. Read More. Stop the Slop. Start Coding Smarter with AI By @@javar97 [ 10 Min read ] A 7-step checklist for developers to use AI tools effectively—without creating low-quality “slop.” Build, test, and scale with discipline. Read More. The Illusion of Scale: Why LLMs Are Vulnerable to Data Poisoning, Regardless of Size By @hacker-Antho [ 4 Min read ] New research shatters AI security assumptions, showing that poisoning large models is easier than believed and requires a very small number of documents. Read More. Why You Should Stop Writing Tests By @alqemian [ 16 Min read ] A weblog about a different approach to automated testing by a senior dev who does not like writing tests. Read More. 🧑‍💻 What happened in your world this week? It's been said that writing can help consolidate technical knowledge, establish credibility, and contribute to emerging community standards. Feeling stuck? We got you covered ⬇️⬇️⬇️ ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it. See you on Planet Internet! With love, The HackerNoon Team ✌️ How are you, hacker? 🪐Want to know what's trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. ## Introducing Agentic Postgres, the Database for AI Agents By @tigerdata [ 4 Min read ] Tiger Data launches Agentic Postgres, the database built for agents. Instant database forks, native vector + BM25 search, MCP for AI agents. Start Free. Read More. StudyPro Evolves Into StudyAgent: From AI Writing Tool to Personal AI Study Assistant By @studyagent [ 2 Min read ] StudyPro has officially rebranded to StudyAgent, signaling its evolution into a complete AI-powered study assistant for students, educators, and researchers. Read More. Best AI Visibility Tools for 2025 By @erikronson [ 8 Min read ] An exhaustive guide to AI visibility tools written by someone who has tried all of them. Read More. The Complete Guide to Mega Productivity With Perplexity Comet (100 Shortcuts + 40 Prompts) By @sidsaladi [ 19 Min read ] Perplexity’s Comet browser changed how I work—AI-powered, distraction-free, and built for productivity, not ad clicks. Read More. Tool Calling for Local AI Agents in C# By @lcarrere [ 12 Min read ] LM-Kit .NET SDK now supports tool calling for building AI agents in C#. Read More. Inside X-VPN’s Verification Process: Internal Review of Blind In/On‑Path Risks By @sandramitchell [ 3 Min read ] X-VPN’s internal review finds no user data leaks in Blind In/On-Path tests; Android routing behavior, not VPN flaws, caused observed signals. Read More. Can ChatGPT Outperform the Market? Week 10 By @nathanbsmith729 [ 4 Min read ] New high of 32%… Read More. A Critical Review of Universal Basic Income as a Response to Technological Unemployment By @escholar [ 4 Min read ] UBI promised to protect workers from automation. But real-world experiments reveal its flaws—and point to smarter policy alternatives. Read More. Grokipedia: The Coming War with Wikipedia for the World's Knowledge By @nofacetoolsai [ 4 Min read ] Discover Grokipedia; Elon Musk's bold challenge to Wikipedia. Explore how this open-source knowledge repository could reshape the future of information and AI. Read More. ChatGPT Is Not Just a Tool; It's a Mirror for How You Think By @ujutheanalyst [ 3 Min read ] ChatGPT isn’t magic it’s a mirror for how we think. I have learned that better prompts aren’t about hacks, they are about precision,patience and fine tuning Read More. System Design in a Nutshell By @amanila [ 59 Min read ] Know system design fundamentals: UX components, databases, scaling strategies, security & compliance. Essential guide for developers & system design interviews. Read More. AI Bubble and the Free Market By @id [ 5 Min read ] The dominance of a few large firms exemplifies an oligopolistic market structure. These companies have significant market power, allowing them to set prices Read More. AI Coding Tools (MCP-series) By @neomatrix369 [ 3 Min read ] Complete guide to setting up Model Context Protocol (MCP) servers across Claude Desktop, Claude Code, and Cursor. Commands, comparisons, and best practices. Read More. Designing Production-Ready RAG Pipelines: Tackling Latency, Hallucinations, and Cost at Scale By @nileshbh [ 13 Min read ] Build production-grade RAG: slash latency, reduce hallucinations, and cut costs with hybrid retrieval, caching, LLM-as-judge, and smart model routing. Read More. Weekly AI Startup Funding: October 12-19, 2025 By @aifundingtracker [ 9 Min read ] AI startups raised over $2.4 billion this week across enterprise infrastructure, healthcare innovation, and fintech. Read More. Can ChatGPT Outperform the Market? Week 8 By @nathanbsmith729 [ 4 Min read ] New high of +30%… Read More. Weekly AI Startup Funding: October 5-11, 2025 By @aifundingtracker [ 8 Min read ] AI startups raised over $4.1 billion this week, with watershed moments in open-source AI, legal technology, and energy infrastructure. Read More. Stop the Slop. Start Coding Smarter with AI By @@javar97 [ 10 Min read ] A 7-step checklist for developers to use AI tools effectively—without creating low-quality “slop.” Build, test, and scale with discipline. Read More. The Illusion of Scale: Why LLMs Are Vulnerable to Data Poisoning, Regardless of Size By @hacker-Antho [ 4 Min read ] New research shatters AI security assumptions, showing that poisoning large models is easier than believed and requires a very small number of documents. Read More. Why You Should Stop Writing Tests By @alqemian [ 16 Min read ] A weblog about a different approach to automated testing by a senior dev who does not like writing tests. Read More. 🧑‍💻 What happened in your world this week? It's been said that writing can help consolidate technical knowledge, establish credibility, and contribute to emerging community standards. Feeling stuck? We got you covered ⬇️⬇️⬇️ ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it. See you on Planet Internet! With love, The HackerNoon Team ✌️