Juan Cruz Martinez

everyone wants their product to work with AI agents. but no one wants their product to be abused. and let's be honest: AI means more + better "bad bots" we are building a product that can help you, by letting you verify there's a real human behind AI agents. we think it'll be really useful for: - dev products - e-ticketing - agent credit cards - social networks we are starting a private Beta of Human Principal with a few companies that want to integrate and give us feedback. interested? humanprincipal.ai

Thirteen years at Siemens, this was already the frame, just without the venture vocabulary. What's new is which leaders are now being asked to defend their work this way.

"Growth is only valuable relative to what it costs to produce it." (The Founders Corner) The Burn Multiple used to be a founder concept. In 2026 it's the operating ratio inside a lot of public-tech companies too.

Of the 2026 layoffs cluster I've been tracking for 6 weeks (Snap, Meta, ASML, Microsoft, Cloudflare, Coinbase, Fidelity, GitLab), GM is the first non-tech-vertical company and the first to publish the specific skill swap, role by role, in public.

GM laid off ~600 IT workers Monday, >10% of its IT dept, with cuts in Austin and Warren. Same announcement, GM is hiring for AI-native dev, data engineering, agent/model dev, and prompt eng. GM calls it a skills swap. techcrunch.com/2026/05/11/gm-…

The new dev-tool funnel reaches three different readers at once. The senior dev evaluating from experience. The growing share of devs who route research through an agent. And a builder who isn't a developer at all and never enters the funnel. Most companies are built for the first one. New article: newsletter.thelongcommit.com/p/the-gtm-for-…

@jesstemporal @cursor_ai @auth0 @cursor_ai looks a lot different than what I remember. And it’s nice to see auth0 as part of that marketplace 💪 Auth shouldn’t be an issue, and should never be reinvented by agents

Where my @cursor_ai peeps at? The @auth0 plugin is live on the #Cursor Marketplace. If you give it a spin, I want the honest take: what worked, what didn't, what's missing? cursor.com/marketplace/au… #DevTools

Thuan Pham (former Uber CTO) via Pragmatic Engineer: "Your professional reputation is a compounding asset that pays off unpredictably." Bill Gurley recruited him on a read formed a decade earlier. The compounding mechanic is different from personal brand.

@jamesqquick @Cloudflare The onboarding, so many services, I don’t know what I need to deploy my apps. Also why pages are kinda hidden feature. It starts to feel like aws.

What confuses you about @Cloudflare? Going to create some short explainer animations!

@jesstemporal @auth0 @focusotter This will make it much easier to add auth and payments to my projects, the two things that are absolutely needed, but no one wants to build 🤣. Great stuff @auth0 and @stripe

If you are like me and don't like to click through dashboards and copy-paste credentials you'll love this: stripe projects add auth0/client @auth0 tenant creation, credentials in your env, all from your terminal. Check this video by @focusotter 👇 youtu.be/nG3Gxrtn6Uo

"Every company building competitive AI products needs an inference strategy." (@GergelyOrosz) Inference engineering went niche to mandatory in ~3 years. Same shape as DevOps crystallizing in the early 2010s. The vertical specialty is re-asserting while the horizontal AI layer forms. Both at once. newsletter.pragmaticengineer.com/p/what-is-infe…

Two new studies landed in the same window. Faros AI's "Acceleration Whiplash" finds volume up, quality down, gap widening as adoption deepens. Laura Tacho's 121k-dev / 450+ company analysis: nearly every dev uses AI assistants, productivity gains still ~10%. The 10% is the number to sit with. faros.ai/research/ai-ac…

Cloudflare's first mass layoff in 16 years: ~1,100 (20%), with Q1 record revenue +34% YoY and AI usage up 600% in 3 months. Most honest disclosure in the cluster, but doesn't name what specific work the agent sessions unlocked. techcrunch.com/2026/05/08/clo…

Gregor Ojstersek: banning AI in interviews tests for a job that no longer exists. Agreed. The harder half: if your 2024 interview question still works when the candidate runs it through Claude Code, you weren't testing engineering. You were testing whether they could produce the artifact. Test the defense of the choice instead.

Caught myself mid-approval, saying yes to a Claude Code command I hadn't actually read. What stopped me wasn't the command. It was realizing I hadn't read the previous one either. New piece on the drift I didn't see: newsletter.thelongcommit.com/p/i-didnt-know…

PwC's 2026 AI Performance Study: 74% of AI's economic value goes to 20% of companies, who report 7.2x the AI-driven gains. Top performers are about 2x more likely to redesign workflows around AI. The 80% are layering tools onto the workflow they already had.

Today I deployed my first astro website to @Cloudflare. I was very confused as to how exactly do it, the create pages button seems hidden on purpose, but other than that, was easy!

@claudeai Oh no, software engineer will be dead in 6 to 12 months again. @ThePrimeagen be ready to reset the AGI clock

Join us at 1pm PT for a conversation with our co-founders Dario Amodei and Daniela Amodei, moderated by Chief Product Officer Ami Vora. x.com/i/broadcasts/1…

This is really great! @auth0 and @ClaudeDevs are killing it! I’ll try this tonight, on the new site I’m building about smart homes…