Product Evals: A Travel Planner Taste Test

A product note on evaluating an AI travel planner: itinerary quality, OOD scenes, long-context consistency, recommendation taste, and user loops.

五月 22, 2026 · 4 分钟 · 664 字 · njx

Context Engineering: The Shape of Evidence

A note on RAG and context engineering: retrieval quality, evidence shape, memory boundaries, and why context is a product surface.

五月 22, 2026 · 3 分钟 · 637 字 · njx

Agentic RL: The Long Shadow of Feedback

A field note on agentic RL: reward design, behavior shaping, credit assignment, online and offline evaluation, and the feedback loops behind agents.

五月 22, 2026 · 4 分钟 · 749 字 · njx

Evals As Instruments: What Demos Hide

A note on evaluation as an instrument: failure cases, metrics, benchmark design, product loops, and the discipline of measuring agents.

五月 22, 2026 · 4 分钟 · 729 字 · njx

Agent Design: Loops, Tools, and Memory

A field note on designing agents as observable loops, with tools, memory, failure recovery, and product boundaries.

五月 22, 2026 · 4 分钟 · 747 字 · njx

Building Njx'Log: Hugo, PaperMod, GitHub Pages

A comprehensive guide on how I built this technical blog using Hugo, the PaperMod theme, and automated deployment via GitHub Actions.

二月 7, 2026 · 2 分钟 · 340 字 · njx

Hello World

Hello World I recently read an interview with my idol Wenli, in which she mentioned how having her own blog helped her learn about AI. I also hope to have a blog where I can continue my ideas and let others see them. I want to keep moving forward on the path of AI. If you are new here, start with the search page or the tags list to find topics you care about.

一月 27, 2026 · 1 分钟 · 74 字 · njx