Hook

Their other posts in the index, biggest breakout first.
Microsoft just made GPT. 5.5's accuracy jumped from 41% to 80% without touching a single parameter. By editing one small text file. And I know that sounds strange, but let me explain. See, the way everyone thinks about making AI better is you go in, you retrain the model, you update the weights, you spend millions of dollars and months of compute. That's the default assumption. But Microsoft just published a paper that says, forget retraining. Let's just update the skills stock instead. If you're not familiar with the skills stock, it's basically a small text file that tells an AI agent exactly how to behave, what steps to follow, how to use its tools, how to format its answers. It's basically an SOP for that agent. In this paper, Microsoft built something called SkillOpt, which is a system that automatically rewrites and improves that skill document over time without anyone touching the model itself. So when the agent goes out and does a bunch of tasks, there's a second AI that watches it. It can see where it failed, where it succeeded, and propose tiny edits to that skills doc. For example, we're gonna add this new rule here, or delete that other one. We're gonna replace this vague instruction with the sharper one. Then it observes the new versions. If it's better, we keep it. If not, we throw it away and remember why it failed. Which means the agent is getting smarter from its own mistakes. And this paper is getting a lot of attention because the results are pretty good across 52 different models and task combinations. SkillOpt won every single one on GPT. 5.5 spreadsheet accuracy went from 41% to 80%. Document task went up from 33% to 72%. And most of those gains came from just one to four edits to that skills doc. Now, I will say this, this only works when the AI agent has a clear right or wrong answer to check itself against. So things like spreadsheets, documents, math, search, the loop works perfectly there. But the second you move into something creative or strategic, it doesn't really work because there's nothing solid to grade against. I mean, the paper admits this themselves. Is it groundbreaking? Absolutely. But is it the full picture? Not yet. Follow and I'll keep you posted.