Jarxi

After the Hexo Skill, a Plugin for Tone

My first Claude Code skill has 700+ downloads on ClawHub, which surprised me enough to write another. This one holds the voices I post in, and it will keep growing.

The first Claude Code skill I wrote was a selfish one. I publish this blog with Hexo, the workflow has enough sharp edges that I kept re-explaining it, so I wrote it down once: front matter templat......

Posted by Jessie Jia on 2026-08-13

What Actually Gets Tokenized in SFT

The model never sees your messages list, only the rendered string. Once that clicks, add_generation_prompt, loss masks and the double-BOS bug all line up behind it.

tok.apply_chat_template(msgs, add_generation_prompt=True) I have copied that line more times than I can count without thinking about what any of it does. The official example writes it that way, th......

Posted by Jessie Jia on 2026-08-12

Technical AI SFT Tokenizer HuggingFace

Multi-level Account and User Design: One User, One Account

A three-level account and user model — legal entity, account, user. Why we rejected this design, then shipped it two months later when one rule changed.

Most billing bugs are not arithmetic. They are identity: whose balance pays for this request. Get the identity model wrong and every table downstream grows a second nullable column and an if. This ......

Posted by Jessie Jia on 2026-08-11

Technical Database Architecture Postgres Billing

Reddit Growth Strategy: Warm-Up, Targeting, and Auto-Fix

How we keep daily Reddit ops on track without tripping moderator wires or API restrictions

Why Reddit still matters for startup storytellingIf you build in public, Reddit is one of the few places where startup founders and marketers actually trade notes in real time. Our current Reddit g......

Posted by Jessie Jia on 2026-03-16

Reddit Startups Marketing Agent Ops

How I Plan to Build in Public

Playbook for shipping an autonomous personal finance assistant in public

Why build in public?Sharing the journey of my personal finance assistant is the best way to attract the right audience: people who want trustworthy AI companions and engineers who care about solid ......

Posted by Jessie Jia on 2026-03-03

Using the blog-hexo skill

Draft + publish workflow in one place

OverviewThe blog-hexo skill merges the drafting and publishing flows so you can go from first idea to deployed post without context switching. This note explains how to use each mode and what to wa......

Posted by Jessie Jia on 2026-03-03

hexo OpenClaw Agent Technical

Organization of OpenClaw Memory

OpenClaw Memory: How the System RemembersOpenClaw’s memory layer is the difference between a forgetful agent and one that wakes up ready to work. This post walks through how OpenClaw structures lon......

Posted by Jessie Jia on 2026-03-02

OpenClaw Memory

[Amazon] How to update brand name

How to update brand name Click “Help” on right upper corner at Amazon Seller Central Click “Get Support” under “Need more help?” Click “Selling on Amazon” -> “Or, browse for your issue in the me......

Posted by Jessie Jia on 2021-03-03

Amazon