What happens when content infrastructure meets AI
By Nika KarliuchenkoMulti-agent orchestration just hit public beta. I upgraded the digest from #023. Six subagents, one lead, half the time.
Read full note →Andrej Karpathy drew a line between vibe coding and agentic engineering. Here is why that distinction matters, where I land, and what it means for the software we build.
Claude Managed Agents, a Memory Store, and one email in my inbox every few days. Here is why I built it and what I want it to become.
Plus Mythos Preview, Claude Design, Managed Agents memory, and the Vercel breach. A running log of three weeks I did not post.
A pattern that went viral in April 2026. My instinct is that RAG and LLM Wiki solve different problems. I shared that thought on X and the conversation was interesting.
The RAG search index now updates itself every time I publish a Field Note. One endpoint, one webhook, done.
Semantic search is live on fieldnotes-ai.com. Voyage AI, Supabase pgvector, Claude Sonnet. But the interesting part is what Contentful contributed.
While preparing to build RAG search for fieldnotes-ai.com, I audited 17 Field Notes and found 84 headings written as plain paragraphs. Claude Code fixed all via Contentful MCP.
I'm building RAG-powered semantic search for fieldnotes-ai.com. Before writing any code, here's the two-pipeline architecture and every decision behind it.
I shipped a production app with Row Level Security disabled. Anyone with my project URL could read, edit, and delete everything. I didn't notice. Supabase did.
digest@fieldnotes-ai.com is sending. DKIM verified. SPF verified. I added one DNS record and Resend handled the rest.
It runs at 8 AM. I didn't write the architecture. I didn't pick the tools. I described the problem and Claude.ai figured out the rest.
Claude Code is building a memory consolidation system modeled on human sleep. It's not available yet. Here's what it does and why I'm not waiting.
Next.js 16.2 dropped March 18. The release is titled "AI Improvements." I had it running on fieldnotes-ai.com by March 23. Five days late is still timely enough.
Google could see my articles. It could not confirm I wrote them. Perplexity had no idea who I was. One Claude Code session changed both.
I uploaded mockups, described the stack, and watched Claude.ai plan a 31-step redesign. Claude Code executed it. Vercel deployed it. I was the human in the loop.
I finished the course. Here's every trick I'll use when I redesign this site. And what I'll protect this time.
A few weeks in, I took Anthropic's official Claude Code course. It was excellent. One feature it taught was already deprecated. Nobody is exempt from the pace — not even the people shipping the tools
Three days of waiting for indexing that was never going to happen. One missing www was the reason.
GitGuardian caught what Claude Code didn't. Here's exactly how an MCP config file caused it and what I do differently now.
robots.txt was missing. The homepage had no metadata. The OG image 404'd after what looked like a clean deploy
robots.txt: 404. Sitemap: pointing to a domain I don't own. AI crawlers: couldn't see me. I stopped shipping code and spent a day reading documentation. Best decision all week.
Lists weren't rendering. Social links were hardcoded. The nav had a page nobody needed. Claude Code fixed the code. Contentful fixed the rest. Total cost: $6.82.
v0 built the site in 5 minutes. Claude went down for 4 hours. Vercel deployed and provisioned SSL like magic. Total cost: $2.70.
Zero UI clicks. Claude Code talked to Contentful through MCP and built six content types in 45 minutes. Cost $1.77.