Top all-time · #2929
Jason Liu
Personal blog · jxnl.co/writingaicareer
Jason Liu's personal blog at jxnl.co covers ai and career. Since 2024, 26 different Hacker News readers have linked it 39 times, most often “Predictions for the Future of RAG”. It is still writing: the last post was on 2026-07-05, and you can follow it by feed.
Too few sampled comments (8) to say how often HN recommends it.?
Why HN links it
Linked for posts on context engineering and using subagents to manage coding-agent context, plus RAG posts drawn from consulting work. Commenters call the context-engineering pieces excellent and a good read.
Summarised by Claude from a sample of 8 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Notes on AI systems, open source, personal work, and the occasional life update from Jason Liu.
Most-linked posts?
- Predictions for the Future of RAG4 people · 4 mentions · first linked 2024-10-28
- How to build a terrible RAG system3 people · 3 mentions · first linked 2024-05-25
- /writing/2025/08/29/context-engineering-slash-commands-subagents/2 people · 3 mentions · first linked 2025-09-13
- Context Engineering: Rapid Agent Prototyping – Jason Liu2 people · 2 mentions · first linked 2025-09-05
- Advice to young people, the lies I tell myself2 people · 2 mentions · first linked 2024-04-04
- Best Tools for Indie Tech Consultants2 people · 2 mentions · first linked 2024-09-09
- How to use codex to get the most out of it2 people · 2 mentions · first linked 2026-05-18
- /services/2 people · 2 mentions · first linked 2024-06-02
What Hacker News says?
Totally agree. The CLI agents (or whatever) lower the barrier of entry to building a custom agent all the way down to basically just writing markdown. Excellent article in this vein: https://jxnl.co/writing/2025/09/04/context-engineering-rapid...
Comment linking /writing/2025/09/04/context-engineering-rapid-agent-prototyping/
on “Claude Code 2.0”Submitted Cautionary tale on using Chase bank for indie business as a story · 295 points
HN discussionSubagents are a critical feature that GH Copilot still lacks. They allow your main agent to use another agent as a tool, meaning the main agent's context doesn't get nearly as polluted. Good read on the benefits of this pattern: https://jxnl.co/writing/2025/08/29/context-engineering-slash...
Comment linking /writing/2025/08/29/context-engineering-slash-commands-subagents/
on “Superpowers: How I'm using coding agents in October 2025”Submitted Systematically Improving Your RAG as a story · 176 points
HN discussionHi, Hamel here. I'm one of the co-authors. I'm an independent consultant and not all clients allow me to talk about their work. However, I have two that do, which I've discussed in the article. These are two production use cases that I have supported (which again, are explicitly mentioned in the article): 1. https://www.honeycomb.io/blog/introducing-query-assistant 2. https://www.youtube.com/watch?v=B_DMMlDuJB0 Othe…
Comment linking /services/
on “What we've learned from a year of building with LLMs”Submitted Advice to young people, the lies I tell myself as a story · 155 points
HN discussionHi, Hamel here. I'm one of the co-authors. I'm an independent consultant and not all clients allow me to talk about their work. However, I have two that do, which I've discussed in the article. These are two production use cases that I have supported (which again, are explicitly mentioned in the article): 1. https://www.honeycomb.io/blog/introducing-query-assistant 2. https://www.youtube.com/watch?v=B_DMMlDuJB0 Othe…
Comment linking /services/
on “What we've learned from a year of building with LLMs”Submitted Losing My Hands as a story · 61 points
HN discussionAlso why is there a post dated 2025? https://jxnl.co/writing/2025/06/15/my-self-reflection-on-suc...
Comment linking /writing/2025/06/15/my-self-reflection-on-success-and-growth/
on “Cautionary tale on using Chase bank for indie business”Submitted How to build a terrible RAG system as a story · 7 points
HN discussion> Subagents do not work well for coding at all Subagents can work very well, especially for larger projects. Based on this statement, I think you're experiencing how I felt in my early experience with them, and that your mental model for how to use them effectively is still embryonic. I've found that the primary benefit for subagents is context/focus management. For example, I'm doing auth using Stytch. What I absol…
Comment linking /writing/2025/08/29/context-engineering-slash-commands-subagents/
on “How to use Claude Code subagents to parallelize development”Submitted How to use codex to get the most out of it as a story · 4 points
HN discussionThis! Subagents open all the new metaphorical tabs to get to some answer, then close those tabs so the main agent can proceed with the main task. Excellent article on this pattern: https://jxnl.co/writing/2025/08/29/context-engineering-slash...
Comment linking /writing/2025/08/29/context-engineering-slash-commands-subagents/
on “How to use Claude Code subagents to parallelize development”Submitted How to Build a Terrible RAG System as a story · 3 points
HN discussioncheck out the other rag stuff https://jxnl.co/writing/category/rag/ all based on consulting calls and advisory work (i sell the implementation so sorry i don't post one click deploys)
Comment linking /writing/category/rag/
on “Systematically Improving Your RAG”Submitted Everything I Learned from AI Consulting as a story · 3 points
HN discussionSubmitted Codex-Maxxing as a story · 2 points
HN discussionSubmitted Advice to Young People, the Lies I Tell Myself (2024) as a story · 2 points
HN discussionSubmitted RAG Anti-Patterns as a story · 2 points
HN discussionSubmitted How to Invest in AI with MCPS and Data Analytics as a story · 2 points
HN discussionSubmitted Predictions for the Future of RAG as a story · 2 points
HN discussionSubmitted Predictions for the Future of RAG as a story · 2 points
HN discussionSubmitted Predictions for the Future of RAG as a story · 2 points
HN discussionSubmitted Low-Hanging Fruit for RAG Search as a story · 2 points
HN discussionSubmitted Everything I Learned from AI Consulting as a story · 2 points
HN discussionSubmitted Best Tools for Indie Tech Consultants as a story · 2 points
HN discussionSubmitted Implementing Naturalistic Dialogue in AI Companions as a story · 2 points
HN discussionSubmitted How to build a terrible RAG system as a story · 2 points
HN discussionSubmitted How to Be Data Illiterate (and How to Avoid Them) as a story · 2 points
HN discussionSubmitted If You Want Taste, You're Gonna Have to Eat as a story · 1 points
HN discussion
