Eugene Oleinik

Web 4.0 Is Open Databases

Sun, 29 Mar 2026 00:00:00 +0000

I asked my AI agent to plan a family escape from Chiang Mai’s burning season. It reverse-engineered a proprietary air quality encoding, scraped flights, checked fuel costs, and compared 15 cities across 10 years of data. This is what Web 4.0 actually looks like: open databases + agents that query them.

Agent Experience (AX): 10 Principles for CLI Tools AI Agents Can Actually Use

Fri, 27 Feb 2026 00:00:00 +0000

We have UX. We have DX. But AI agents are now the primary users of developer tools, and nobody’s designing for them. Here are 10 principles from watching real agent behavior through usage telemetry.

How We Make Claude Remember: Learnings Over Skills

Mon, 02 Feb 2026 00:00:00 +0000

Skills don’t reliably auto-invoke. We built a three-layer system: searchable learnings files, a curation skill, and a post-commit hook that reminds you to document.

Serve Markdown to AI Agents (10x Smaller Payloads)

Mon, 02 Feb 2026 00:00:00 +0000

An entire infrastructure layer (CSS, JS, frameworks) is becoming optional for a growing class of consumers. Here’s how to serve markdown via HTTP content negotiation.

The AI Data Trap: Why You Can't Opt Out

Wed, 28 Jan 2026 00:00:00 +0000

Your competitor uses Claude or GPT to move faster. If you don’t, you fall behind. That’s the trap.

The Best Agent Architecture Is Already in Your Terminal

Mon, 12 Jan 2026 00:00:00 +0000

The Best Agent Architecture Is Already in Your Terminal

My project’s CLAUDE.md file had grown to 55KB—242 learnings crammed into one massive file.

The problem? Claude prepends this file to every single prompt. A 55KB context file means less room for thinking and acting. Sessions hit context limits faster. Compaction happens sooner.

I noticed the degradation: sessions became noticeably shorter, context compaction triggered more frequently, and the agent seemed to lose track of longer conversations.

Zero-Friction Database Branching with Neon, Git Hooks, and Claude Code

Wed, 07 Jan 2026 00:00:00 +0000

Zero-Friction Database Branching with Neon, Git Hooks, and Claude Code

I’ve been refining my Neon database branching setup over the past few months. Here’s the current state: fully automated branch lifecycle with zero manual cleanup.

The Goal

When I git checkout -b feat/x:

Neon database branch created automatically
.env.local updated with the new connection string
Vercel preview deployment uses the same isolated database

When I merge and delete the branch:

The Iteration Trap: When AI Makes You a Spectator

Sun, 28 Dec 2025 00:00:00 +0000

The iteration trap is really a clarity trap. You iterate because you don’t know what you want.

Adding LLM Polish to a Speech-to-Text App