Jason Liu
Machine learning engineer and consultant focused on RAG and retrieval systems. He writes about applied AI engineering at jxnl.co and is the author of the instructor library.
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Where they publish
jxnl.coSite His writing on RAG, retrieval systems, coding agents and AI engineering practice.
Recent
- If You Want Taste, You're Gonna Have to Eat 5 Jul 2026
- Two kinds of scheduled work in Codex 28 Jun 2026
- Three Ways Codex Can Use a Computer 16 Jun 2026
Show 17 more
- Six levels of complexity in a Codex morning brief 18 May 2026
- Codex-maxxing 10 May 2026
- What Music Do You Listen To? 2 Apr 2026
- Sunsetting 567 Labs and Open Sourcing the Course Content 2 Feb 2026
- Things 24 Jan 2026
- Do Your Engineers Know How to Leverage AI? 11 Sept 2025
- Coding Agents Speaker Series: Lessons from Industry Leaders 11 Sept 2025
- RAG Master Series: Complete Guide to Retrieval-Augmented Generation 11 Sept 2025
- Domain Experts: The Lever for Vertical AI 11 Sept 2025
- Text Chunking Strategies for RAG Applications 11 Sept 2025
- Why Grep Beat Embeddings in Our SWE-Bench Agent (Lessons from Augment) 11 Sept 2025
- Why Cognition does not use multi-agent systems 11 Sept 2025
- Stop Trusting MTEB Rankings (Kelly Hong, Chroma) 11 Sept 2025
- How Extend Achieves 95%+ Document Automation (Lessons from Eli Badgio) 11 Sept 2025
- The 12% RAG Performance Boost You're Missing (Ayush, LanceDB) 11 Sept 2025
- Why Glean Builds Custom Embedding Models for Every Customer 11 Sept 2025
- Lexical Search in RAG Applications 11 Sept 2025
Link verified 4 Sept 2026. Recent items update automatically from the channel.
github.com/jxnlGitHub His open-source work, including the instructor library and the source of jxnl.co.
Recent
Show 10 more
- instructor-go — structured outputs for llms 7 Jul 2026
- personal-monorepo-template 22 Jun 2026
- tao-te-ching 13 Apr 2026
- book-of-disquiet 12 Apr 2026
- systematically-improving-rag 18 Jan 2026
- presentations 16 Jan 2026
- cursor-cloud-agent-mcp — MCP server that exposes Cursor Cloud Agents API endpoints as tools for AI assistants 25 Nov 2025
- lmsys-query-analysis 27 Oct 2025
- medical-agent 15 Oct 2025
- kura — Kura is a simple reproduction of the CLIO paper which uses language models to label user behaviour before clustering them based on embeddings recursively. This helps us understand user behavio… 10 Sept 2025
Link verified 4 Sept 2026. Recent items update automatically from the channel.
Recommends rcmnd
What they recommendrcmnd 14 things — each backed by an exact quote.
Compiled by rcmnd.app, not by them: the quotes are theirs, and each links to the post it was copied from.
Recent
USM Haller storage Recommends
Muji storage Uses
Milbon Curl Mousse Liked
Show 11 more
Extreme Cashmere Liked
Extreme Cashmere — Dutch brand making oversized, genderless cashmere knits. Their pieces are numbered instead of named.
jxnl.co 2026-01-24
affiliate link
Yohji Yamamoto Loved
Wyatt harness boots Loved
I've worn my Wyatt harness boots for years and they're still pristine.
jxnl.co 2026-01-24
affiliate link
Rimowa luggage Uses
Philips Hue Loved
Kinesis Advantage 360 Uses
Herman Miller Embody Uses
Harman Kardon Aura Studio 3 Loved
the single best speaker I've ever owned, perfect for hosting parties.
jxnl.co 2026-01-24
affiliate link
CeraVe Ultra-Light Gel Liked
lightweight moisturizer with ceramides and hyaluronic acid. After a week, I received compliments on my skin.
jxnl.co 2026-01-24
affiliate link
Manta Sleep eye mask Loved
For travel, Manta Sleep eye mask — they have hot and cold versions which I love.
jxnl.co 2026-01-24
affiliate link
Purple Mattress Uses
Latest
Full feed →Everything, newest firstFeed Repos and posts from the cards above, in one stream.
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- jxnl 29 Jul
- dots 14 Jul
- blog 7 Jul
- instructor-go — structured outputs for llms 7 Jul
- If You Want Taste, You're Gonna Have to Eat 5 Jul
- Two kinds of scheduled work in Codex 28 Jun
Show 22 more
- personal-monorepo-template 22 Jun
- Three Ways Codex Can Use a Computer 16 Jun
- Six levels of complexity in a Codex morning brief 18 May
- Codex-maxxing 10 May
- tao-te-ching 13 Apr
- book-of-disquiet 12 Apr
- What Music Do You Listen To? 2 Apr
- Sunsetting 567 Labs and Open Sourcing the Course Content 2 Feb
- Things 24 Jan
- systematically-improving-rag 18 Jan
- presentations 16 Jan
- cursor-cloud-agent-mcp — MCP server that exposes Cursor Cloud Agents API endpoints as tools for AI assistants 25 Nov 2025
- lmsys-query-analysis 27 Oct 2025
- medical-agent 15 Oct 2025
- Lexical Search in RAG Applications 11 Sept 2025
- Why Glean Builds Custom Embedding Models for Every Customer 11 Sept 2025
- The 12% RAG Performance Boost You're Missing (Ayush, LanceDB) 11 Sept 2025
- How Extend Achieves 95%+ Document Automation (Lessons from Eli Badgio) 11 Sept 2025
- Stop Trusting MTEB Rankings (Kelly Hong, Chroma) 11 Sept 2025
- Why Cognition does not use multi-agent systems 11 Sept 2025
- Why Grep Beat Embeddings in Our SWE-Bench Agent (Lessons from Augment) 11 Sept 2025
- kura — Kura is a simple reproduction of the CLIO paper which uses language models to label user behaviour before clustering them based on embeddings recursively. This helps us understand user behavio… 10 Sept 2025