Dan Fein @dfeinition

Claude Opus 5 one-shotted this game. EVERYTHING you see in this demo is custom code... not a single external asset was used. AI games are going to be amazing. (sound on)

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And for whatever reason I wanted to slice through a 3D animal cell. Claude gave me a beautiful render. But the best part: it preemptively flagged every place it exaggerated scale, and explained why each made the diagram clearer. youtube.com/watch?v=2eiKnt…

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Dan Fein @dfeinition

a week ago

Pushing Opus 5 to see what it could do is incredibly fun. I've already learned a thing or two about a thing or two. Here's a wind tunnel where we proved once and for all that the Claude Code mascot is not aerodynamic. youtube.com/watch?v=4WQd-8…

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Dan Fein @dfeinition

a week ago

@lydiahallie thank you for updating the skill name from the original "Explain Like I'm Dan"

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Dan Fein @dfeinition

2 weeks ago

@ProfessorRowe @ClaudeDevs Loads of use cases, but one that's super cool is sharing a pre-built page shell that anyone, in your org or not, can populate with their own data. Like a cool little Vercel Ops dashboard connected to Vercel MCP that shows all of your projects and the recent logs for each 😍.

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Dan Fein @dfeinition

2 weeks ago

One thing I've found really helpful as messaging and content change: I tell Claude to archive instead of delete. Unlike traditional version history, this keeps the old messaging available as context. Knowing what outdated looks like helps catch it slipping into new content.

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Dan Fein @dfeinition

3 weeks ago

@nicoalbanese10 @OpenAI Congrats dude!!! They're lucky to have you

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Dan Fein @dfeinition

3 weeks ago

@valleyfaraday If it were more than once-monthly I'd be doomed

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Dan Fein @dfeinition

3 weeks ago

Claude, please show me where to put my plants so I increase their chances of survival

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Dan Fein @dfeinition

3 weeks ago

@sonofalli there's still time!

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Dan Fein @dfeinition

3 weeks ago

@gaspargarcia_ should I correct for whoever ruined this?

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Dan Fein @dfeinition

3 weeks ago

@nickventuri 🏃‍♂️

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Dan Fein @dfeinition

3 weeks ago

I use every Claude surface daily. If I had to explain how I pick, it's basically: what am I trying to do, and do I want to steer it or let it run? Chat's a rally. Quick back and forth for general info, work or not. Cowork gets the knowledge work. Projects mostly, the ones I'm on for days or weeks, and it already has memory built up with my files, tools, and whatever we did last time. I hand Cowork a task, or a few, and it runs with all of it and comes back with the finished work. With Claude Code my hands are on the wheel and we're building together. An app, a site, a feature, a prototype, anything I know I'll want to steer. And Claude Tag is already in the room. I tend to tag Claude in to kick off a task and let the Slack ping bring me back. The work's happening in a channel, and the context, tools, and people are right there so we can co-steer. I don't really think about any of this, I just reach for the surface I know has the right context and access.