
Staff AI Engineer @brexhq. I like to build cool shit and ride bikes šļø Leading our new AI Assistant to help customers automate their work
Sao Paulo, Brazil
Joined March 2016
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Since everyone is complaining that iPhone Duo lacks great apps, here's a skill to migrate your app today: github.com/MarceloPrado/skilā¦
It learns what the app is for, audits your screens, proposes a layout following Apple's HIGs and builds it, proving it works with before and after screenshots.
Enjoy! Feel free to contribute
My new workout app MCP is sooo good. It fetches your latest workout from iPhone/Watch, read your avg/max BPM + notes and help you adjust it automatically.
It's like having a superstar personal trainer. Getting close to launch, waiting for Apple, Anthropic and OpenAI reviews
One of the thing I love most about @poteto's pstack is the fact it names the principles shaping its response.
It gives me a higher confidence certain task is trending on the right trajectory.
I vibed an explainer video about the key @Cloudflare primitives. I knew very little about the company beyond their CDN offering and the video helped me realize all the cool things I was missing.
I hope it's helpful to you too, let me know!
I'm trying the "Be more ambitious" approach from
@felixrieseberg and asked Opus + Fable to act like a professional game designer.
It rigged the crap out of my models, and built many verification tools (deterministic and judge-like). But my simulated world is not fully there yet.
After LOTS of turns, it finally got the dumbbell curl in a good spot. But it doesn't generalize to other exercises like I expected - 2nd video shows what it outputs during the first few passes.
It's also really token hungry. My end-goal is a skill where I can ask it "record a muscle-up in 3 angles, female model" and produce production-quality artifacts ready for my app.
Long way ahead!
Building a new workout tracker app with Opus. Current milestone: rigging my 3D character models to record the exercise poses.
I have no idea if this will work lol
What I love about Opus 5.5: I can finally build the wedding website of my dreams.
Inspired by Shopify Renaissance's release - to me, the most beautiful website ever published.
I think my fiancĆ©e will š¤Æ
Thanks @AnthropicAI
I think I've never been more frustrated with a vendor than Twilio. @zenorocha / @vcapretz you guys need to dominate this market seriously
Thanks Peter! no drops in coverage either! amazing.
OpenClaw deleted around 400k LOC of its own tests without much change in code coverage. Modern models just love writing tests for every tiny change, even if they aren't useful. This skill helped. github.com/openclaw/openclawā¦
nat.org is full of gems. Hereās one that resonated with how my team has been operating our product:
ā¢Smaller teams are better
ā¦Faster decisions, fewer meetings, more fun
ā¦No need to chop up work for political reasons
ā¦No room for mediocre people (can pay more, too!)
ā¦Large-scale engineering projects are more soluble in IQ than they appear
ā¦Many tech companies are 2-10x overstaffed
Iāll die on this hill: thereās nothing better than a small team with large ownership
Luna ā¤ļø
Please welcome GPT-6 Sol and GPT-6 Luna to the GPT-6 universe.
GPT-6 Sol and Luna build on the advances behind GPT-6 Astra, bringing much of its strengths into faster and more affordable models to support work at scale.
Weāve also made caching and inference more efficient, and weāre passing the savings directly to you: 50% lower API prices for Sol and Luna compared with GPTā5.6 promotional pricing.
One of the things Iām most excited about Jev is using it in CI. You can now enforce all your team and agentās conventions as prose and feed into Jev checkers
Will make it impossible to commit code out-of-spec. Style guides will become style linters.
Somewhat of a different approach than @VictorTaelin Bend2, which tries to make bad/faulty code impossible at the compiler level.
Excited about both directions honestly
Tobi sounds like an awesome boss
Yep. Except:
1. This was about important internal tools. The team was stuck in some architecture nightmare of their own doing (writing it in rails but headless, with graphql api, and a SPA react app, constantly needing frontend engineers for changes). I call this kind of thing 'cosplaying an enterprise production app'. All that complexity was in the way and using straight rails was perfect in that case.
2. I make calls like this all the time. Usually someone on the team asks me to. They see what needs to happen but donāt want to be the bad guy. Iām happy to just make the call if I agree with the premise. Saves enormous amounts of meetings and change management etc. Sometimes this is jokingly referred to as Founder-mode-as-a-service here.
3. For ten years Iāve also run an internal podcast called Context, where I revisit decisions like these and explain the reasoning so everyone can learn from them. This is helpful to give people all the variables that were considered and why this was the choice made given the information available at the time. I want to teach how to make such decisions effectively without needing me. Sunk cost fallacy is a problem.
4. Any notions that Shopify is succcessful despite of me doing this, instead of because of it, will have a hard time making their argument come together I think š
the part of 'two weeks later tobi learns about...' is nonsese and the pivot of that project up there happens one of the more successful examples of interventions. But getting the company to work effectively with great architecture and low technical debt baggage into the right direction is literally the job, so guilty as charged I suppose.
But there are always cope stories floating around like this because they are more fun, than saying 'somehow we needed tobi to stop doing silly architecture astronautics'. I can totally see that.











