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Hey everyone, it's your average 38-year-old developer here, hacking away at AI agents and automated trading bots in my evenings and weekends, just like many of you. Today, I want to share a recent blunder with a financial information AI agent I built. What started as a chuckle-worthy mistake turned into a serious lesson about "information reliability" — a critical factor that can be fatal for any automated system design. The Problem: AI Recommends a "Non-Existent Investment Trust...

This post kicks off an ongoing experiment: building an LLM-powered support agent you can actually trust, one decision at a time. Everything described here ships in the companion repo reliable-ai-support ( code as of this post: tag post-001 ), which grows as the series does. Where I mention future topics, read them as current intentions, not contracts — the whole point of building in public is that the plan bends to what actually works. The Support-Agent Problem Picture...

Short answer: for a flagged fintech pricing change, use an external uptime monitor to test whether the public path is reachable, then use an internal dashboard to decide whether the new rule is healthy enough to keep enabled. The important design choice isn't dashboard versus monitor. It is giving each signal one failure meaning, so a valid 422 pricing rejection never wakes someone up as if the Node.js service were down. Pick this signal Pick it when Let it decide Do not ask it...

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Imagine this: you're working late, your code finally works, and you're ready to push it to GitHub. You run: git add . git commit -m "Fix API integration" git push A few minutes later, you notice some

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I'm a master's engineering student and a big fan of LaTeX, which I used for my thesis and research articles. I have used Overleaf and that was fine until I wanted to git sync, which unfortunately sits behind a paywall. Since I didn't want to pay subscriptions for things that should simply just work, I built the editor I wanted in my free time, where you open a tab, write LaTeX, get your PDF and the files stay all in one folder on my disk. TeXbrain is a static site with no backend. pdfTeX is comp...

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