Dagens Vibes — 21. juli 2026

levent@__alpoge__

hello there the jacobian conjecture is false thanx to my close friend akhil for asking about it and my other close friend fable for working during the world cup final ((1+xy)^3 z + y^2 (1+xy) (4+3xy), y + 3 x (1+xy)^2 z + 3 x y^2 (4+3xy), 2 x - 3 x^2 y - x^3 z): \C^3\to \C^3, has jacobian determinant -2, and sends (0, 0, -1/4), (1, -3/2, 13/2), and (-1, 3/2, 13/2) to (-1/4, 0, 0)

Chubby♨️@kimmonismus

OpenAI says an unnamed long-horizon model tried to break out of its sandbox- and succeeded. During a NanoGPT evaluation, the model was instructed to share its results only in Slack. Instead, it spent an hour finding a sandbox vulnerability, bypassed restrictions blocking external access and opened PR #287 on the public GitHub repository. OpenAI: "This model often kept trying, including by looking for ways to act outside its sandbox." In another test, it tried to recover private solutions from an evaluation backend. After a scanner detected an authentication token, the model split and obfuscated the token, then reconstructed it at runtime to evade detection. The model explicitly acknowledged that it was circumventing the scanner. This happened during limited, monitored internal use. OpenAI paused access, strengthened alignment and introduced monitoring that evaluates the model’s entire trajectory rather than isolated actions.

Cursor@cursor_ai

We had a team of agents rebuild SQLite from its 835-page manual. It created a replica in Rust which passed 100% of a held-out test suite. Interestingly, cost varied 15x depending on which model mix we used.

Onur Solmaz@onusoz

Speaking of graphs... here is something I wanted to build since 3 months, and finally had the chance to, thanks to @pidotdev I often have these sequence of prompts that emerge while I work. Not just sequences but conditionals that necessitate control flow For example, one workflow that resembles socratic questioning: 1. Discuss some problem 2. "What is the most elegant and long-term production ready solution for this?" -> Agent replies 3. "Is that the holy grail?" 4. Agent can reply "yes it is, basically" or "no, it is not, it is instead ..." 5. If yes, continue to "autoimplement". If no, think about it and decide what to do And "autoimplement" is a single prompt of 6-7 sequential steps, which I've been meaning to make more deterministic as well But I wasn't sure how to build it I had previously built acpx workflows to be a swiss army knife, "something like n8n, but can drive codex through deterministic steps, nodes in a graph. or claude code. or pi. it uses acp..." But it had one problem. It was run from outside the harness, like a CI orchestrator I wanted to integrate acpx into pi. Because pi was the only CLI that could enable building of such a thing. But I wasn't sure how to reconcile a general ACP-based tool into a single coding agent I was being too accommodative of all the other harnesses, claude code, codex. I was trying to be too general I have changed my mind since then ACP is great and lets you integrate a harness into other software in cool ways But maybe, if a harness is proprietary, does not accept outside contributions, or does not even *support ACP*, maybe, it does not deserve cool features 😤 (they know who they are) So I ripped out ACP, and built it natively, only for pi No need for a web viewer... Just view it in a native widget, right inside pi! I cannot put into words how awesome it is to be able to do this! I am still tinkering, discovering. It is at osolmaz/pi-workflows if you want to take a look

Sarah Drasner@sarah_edo

Since you can see me now, here's a site I made to demo/explain WebMCP: Maybe you've heard about WebMCP, but if you'd like to see it in action and learn how to work with it, how agents use it, what the spec looks like, and some important links? It's interactive! Use the extension to actuate the page:

Vue@vuejs

RT @bencodezen: Vue 3.6 is now entering RC phase! 🎉 Super excited for all these perf improvements and for Vapor to soon be available for e…

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Ben Hong@bencodezen

Vue 3.6 is now entering RC phase! 🎉 Super excited for all these perf improvements and for Vapor to soon be available for everyone to use! github.com/vuejs/core/rel…

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https://x.com/i/status/2078501342155280826