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A lot gets said about models. Hardly anything about the surroundings. Yet in daily work the surroundings are what decide. What is described here is not a product and not something we sell. It is the answer to the question we get asked most in conversation, mostly by people who work with AI themselves: how is this set up at your place. The Editor Is The Stage The work happens in a normal code editor, not in a chat window in the browser. That is the single most important difference. A chat window in the browser only sees what you paste into it. An assistant inside the editor sees the files, can run commands, read results and derive the next step from them. The difference between "explain how I change this" and "change it, run the tests and show me the result" is not convenience, it is a different way of working. Two Model Families, On Purpose Assistants from two different houses run side by side. That is not indecision but the most effective quality lever we have found. Models from the same family make similar mistakes. When builder and reviewer come from the same house, the reviewer reliably overlooks exactly what the builder overlooked. They share the blind spots. Run a model from a different family over the same work, with the explicit assignment to refute it, and different findings come back. Not more findings, different ones. That is now our standard route for anything non-trivial: one builds, a second attacks, and it keeps going until nothing substantial comes back. Recipes Instead Of Explaining Again The second layer is recipes for recurring procedures. A deploy, a blog post, a client onboarding, a server check. The point of them is not automation. The point is that each recipe carries the traps we already fell into. For publishing a site, for instance, it holds the order of checks that are due before the switch. Knowledge like that otherwise disappears. It lives in the head of somebody who is not around that day. In a recipe it is written down and gets followe

When you are building something from scratch, speed feels noble. It feels disciplined. Necessary. Mature, even. You tell yourself you are being practical. The customer does not care if the code is beautiful. The market is moving. Cash is finite. Momentum matters. So you make the trade that almost every founder makes at some point: ship now, clean up later. I understand that instinct very well because I have lived inside it. As a founder, you are not operating in the comfort of theory. You are making decisions with incomplete information, limited time, and a product that still needs to prove it deserves to exist. In that stage, a lot of engineering advice sounds suspiciously like it was written by people who have never had to get a real product out before the window closes. So yes, you move fast. You hardcode things that feel temporary. You defer cleanup. You choose the version that works over the version that would make your future self proud. You call it pragmatism, which it often is. The trouble is that pragmatism has a habit of overstaying. And that is the trap. Because some shortcuts buy you speed. Others quietly sell off your future ability to move. It took me time to really understand that distinction. Founding teaches you that speed has layers Before I started building products as a founder, speed felt simple. Ship the feature. Get the customer. Keep going. Later, I learned that there are at least two kinds of speed. The first kind gets you to launch. The second kind lets you keep moving after the launch. The first kind is exciting. It is visible. It gives you demos, momentum, first users, first revenue, first proof that you are not completely hallucinating the opportunity. The second kind is quieter. It shows up months later when the product has more customers, more complexity, and more reasons to break. It is the speed of a system that can still change safely. A team that can still ship without fear. An architecture that has not turned every roadmap discuss

I expected the audit to find broken code. That's what I was bracing for going in — a pile of half-working features, sloppy logic, the kind of mess you'd assume from software built at maximum speed with no human reviewing every line. That's not what I found. Almost everything Claude built actually worked, taken piece by piece. What I found instead was something I didn't expect at all: the agent had made the exact same mistakes I've watched human startup teams make, over and over, when they move fast and nobody's job is to say no. That's the real story here, and it's more interesting than "AI wrote bad code" would have been. The experiment The project is called GetPricePulse — a SaaS pricing intelligence product. It's Claude's entry from The $100 AI Startup Race , the season-long challenge I run where seven AI agents each get $100 and full autonomy to build a real startup from scratch, with no human coding and no product manager in the loop. Each agent picked its own idea and ran with it. Claude picked SaaS pricing intelligence, named it PricePulse, and kept building on it for the entire race. That "no product manager in the loop" part is the thing that made this interesting to watch. Nobody was deciding what PricePulse should be. Nobody was saying "we have enough pricing tiers now" or "this feature doesn't belong here." Claude got to build exactly what its own priorities told it to build, at whatever speed it chose, for the length of the race — optimizing, as far as I could tell from the commit history, for speed, feature creation, shipping, and monetization experiments. Not correctness. Not coherence. Not "does this still make sense in three weeks." I've written before about what all seven agents in this race said, independently, when I asked them what AI agents still can't do — they converged on the same answer without seeing each other's responses. This piece is narrower: a full production audit of Claude's specific build, PricePulse, done after the race, before I

Conclusion first: a free model drafted a working C++17 directory hasher in one pass. The draft compiled, ran, and was still wrong. A differential test against standard system tools found three real bugs before the tool ever touched a production cache. Generation was the cheap part. Verification was the deliverable. Background I needed a deterministic hash of a directory tree. The use case was cache invalidation for a small build pipeline: if any file content, name, or symlink target changes, the cache key must change. If nothing changes, the key must stay identical across machines and across checkouts. Hand-writing the tool is maybe 200 lines of std::filesystem code. The happy path is easy. The risk lives in ordering, symlinks, and metadata leaking into the hash. I turned the task into an experiment. MonkeyCode's free model access and free server option meant the model ran on a remote server while I kept verification on my laptop. Disclosure: This article was prepared as part of MonkeyCode's product outreach. The plan: let the model write the first version, then prove or disprove it against a reference oracle. The Contract The goal was not "a tool that compiles." The goal was a tool that matches a reference implementation on every input I could generate. I wrote the contract in three sentences: Same tree → same hash, on any machine. Different content, name, or symlink target → different hash. File metadata (mtime, inode) must not affect the hash. Implementation Step 1: the prompt. I gave the model the contract, the C++17 standard, and one constraint: a single file with no dependencies beyond the standard library. Step 2: the draft. The model returned one .cpp file in a single response. It compiled on the first try. That is the exact moment where most workflows stop. This one did not. Step 3: the reference oracle. Instead of reviewing the code line by line, I built a harness that compares the tool against a shell pipeline: find " $tree " -printf '%P\0' | sort -z | wh

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The number of cases falls from 1,100 to 437 with increased testing.