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Tag: ia

16
May 08 2026

After the Guardrail That Saved My Infrastructure: My Autonomous Agent Architecture in Production

The autonomous agent incident forced me to redesign everything — from permissions to observability. This is what ended up running in production after the crisis: the real graph, the real numbers, and what still doesn't sit right with me.

May 08 2026 · 9′ · Experiments · TypeScript · produccion

9′
May 05 2026

I Trained My Own LLM from Scratch in 2025: What That Viral HN Tutorial Doesn't Tell You About the Real Cost

I followed the viral 241-point HN tutorial and documented every dollar spent, every GPU hour, and every disappointment. My thesis: training an LLM from scratch in 2025 is a valid technical exercise, but calling it "an alternative to Claude" is lying to yourself.

May 05 2026 · 9′ · Experiments · LLM · ia

9′
May 04 2026

Agentic Coding Is Not a Trap: I Answered the Viral HN Post With My Own Production Logs

367 points on HN say agentic coding is a trap. I have logs that say something more uncomfortable: sometimes it saves 3 hours, sometimes it sends me down a 4-hour rabbit hole. The difference isn't the agent — it's the contract you sign before you send it to work.

May 04 2026 · 8′ · Opinion · produccion · railway

8′
May 02 2026

The gay jailbreak: I ran the viral technique against my own production prompts and here's what I found

524 points on HN about a trending jailbreak technique. Instead of reading the thread, I ran it against my own production prompts. What I found isn't an isolated case — it's a systemic symptom that changes how I think about my LLM guardrails.

May 02 2026 · 9′ · Experiments · TypeScript · LLM

9′
Apr 28 2026

Microsoft and OpenAI Break Their Exclusive Deal: What My API Usage Logs Actually Say About Who Benefits

Microsoft and OpenAI ended their exclusivity agreement. Everyone's got a hot take. I opened my API logs from the last 90 days and found something I didn't see in any of the analyses: the change is basically irrelevant for independent devs — except for one line on the invoice that almost nobody looke

Apr 28 2026 · 8′ · Opinion · ia · arquitectura de software

8′
Apr 18 2026

Claude Design and What It Reveals About How Anthropic Thinks (or Doesn't Think) About Developers

A viral HN post with 1050 points on Claude's design made me confront something I've been feeling for months: there's a massive gap between the Claude Anthropic shows in presentations and the Claude I'm wrestling with at 2AM in the terminal. This isn't a review. It's a political reading of the produc

Apr 18 2026 · 8′ · Opinion · claude code · anthropic

8′
Apr 17 2026

Claude Opus 4.7 and the Beginning of the End of AI Abundance

Two years of models getting cheaper and smarter every quarter trained us to expect that forever. Opus 4.7 trended today alongside a piece about 'the start of AI scarcity.' I put them together and something clicked. Here's what actually changed.

Apr 17 2026 · 9′ · Reflections · anthropic · LLM

9′
Apr 17 2026

CodeBurn and the Problem I Didn't Know I Had: Tokens Per Real Task

CodeBurn dropped on HN and forced me to calculate my real Claude Code numbers for the first time. The result was uncomfortable: on some tasks I'm burning more tokens debugging the agent than solving the actual problem. That's not a cost issue — it's a design signal.

Apr 17 2026 · 8′ · Reflections · claude code · desarrollo

8′
Apr 15 2026

Local MCP Server in 15 Minutes (And What to Do With It After)

I had a local MCP server running in 12 minutes. Minute 13 I just stared at the screen with no idea what to do next. This post is about that moment — and why MCP is the protocol everyone talks about but almost nobody actually understands.

Apr 15 2026 · 7′ · Tutorials · TypeScript · LLM

7′

Series

  • Open Data and Creativity2
  • Awesome Curated: The Tools10
  • Awesome Curated1
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Clusters

  • Software architecture

Categories

  • Experiments98
  • Tutorials67
  • Opinion42
  • Reflections18
  • Technology8
  • History6

Tags

  • #TypeScript
  • #arquitectura
  • #nextjs
  • #railway
  • #java
  • #LLM
  • #postgresql
  • #ia
  • #prisma
  • #software-architecture
  • #firma-digital
  • #AI

Popular

  1. 01pnpm vs npm vs yarn vs bun: The Real Comparison Nobody Gives You in 2025
  2. 02Next.js App Router: The Guide I Wish I Had When I Migrated from Pages Router
  3. 03TypeScript: The Patterns I Actually Use Every Single Day
  4. 04Docker for Node.js Developers: From Zero to Production Without Losing Your Mind
  5. 05Your Digital Signing Cryptography Has an Expiration Date: What NIST Published and How to Migrate Your HSM

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Juanchi.dev is Juan Torchia’s public notebook — architecture, real systems and product decisions. Written and reviewed by hand in Buenos Aires. Built with Next.js, Prisma and PostgreSQL; deployed on Railway. No third-party trackers beyond aggregate analytics.

GitHubRSS© 2026 Juan Torchia · All rights reserved.

Real code. Unfiltered takes.

Architecture, real systems, product decisions and technical lessons. Everything reviewed with my own judgment before it ships.

213 articles published

Series

  • Open Data and Creativity2
  • Awesome Curated: The Tools10
  • Awesome Curated1
See all

Clusters

  • Software architecture

Categories

  • Experiments98
  • Tutorials67
  • Opinion42
  • Reflections18
  • Technology8
  • History6

Tags

  • #TypeScript
  • #arquitectura
  • #nextjs
  • #railway
  • #java
  • #LLM
  • #postgresql
  • #ia
  • #prisma
  • #software-architecture
  • #firma-digital
  • #AI

Popular

  1. 01pnpm vs npm vs yarn vs bun: The Real Comparison Nobody Gives You in 2025
  2. 02Next.js App Router: The Guide I Wish I Had When I Migrated from Pages Router
  3. 03TypeScript: The Patterns I Actually Use Every Single Day
  4. 04Docker for Node.js Developers: From Zero to Production Without Losing Your Mind
  5. 05Your Digital Signing Cryptography Has an Expiration Date: What NIST Published and How to Migrate Your HSM

Newsletter

One email a week. What I'm learning, building, and breaking.

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