Dan Fein (@dfeinition) header
Dan Fein (@dfeinition) profile picture

Dan Fein

@dfeinition

Tinkering with Claude @ Anthropic

 NYC
Joined June 2017
  • Tweets2.1K
  • Following200
  • Followers4.1K
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Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)Photo by Dan Fein (@dfeinition)
You can just ask Claude to brighten the timeline
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"We’re also removing the 5-hour limit for verified Ultra accounts..." 🥹
Claude (@claudeai) profile pictureClaude
@claudeaiOct 30
We’re renaming our Max plans: Max 5x → Max Max 20x → Ultra Max is still $100/month, and Ultra is still $200. If you’re a subscriber, there’s nothing you need to do. We’re also removing the 5-hour limit for verified Ultra accounts, starting today with most existing subscribers. Newer accounts keep a temporary limit until they’re verified, which helps us prevent fraud and abuse. You'll get an email when it's removed. Weekly limits remain unchanged. View our plans here: claude.com/pricing
Image from Claude (@claudeai)
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Keyboards can quietly resize their keys while you type, you just can't see it. I keep building little videos to understand how things work. This one is a simplified look at how a keyboard might tell "hrllo" meant "hello." Made with Claude Opus 5.5 👇
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In Claude Projects you can now drag a thread from the side panel into the message box to point Claude at it. Typing @ works too. Usually you can just ask and Claude finds the right thread, but this is great for when you need to be exact.
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shoutout @pranathiperii
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Sometimes you want every stat on one screen. Other times, a nice trick I found: “...let’s try a more progressive disclosure of complexity...” Everything’s still there, it just shows up when I need it.
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Happy iPhone Duo Day to all who celebrate!
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Claude Duet asks before things go out. I say yes a lot. Join the waitlist here: claude.com/product/claude-du…
Claude Duet | Your personal AI assistant

Claude Duet | Your personal AI assistant

Claude Duet is a personal AI agent you message. It handles your inbox, calendar and follow-ups and messages you when something needs you. Join the waitlist.

claude.com
Claude (@claudeai) profile pictureClaude
@claudeaiOct 21
We’re opening a research preview of Claude Duet, a new app where Claude works as a proactive agent. It comes to you with what needs your attention, completes tasks you ask of it, keeps working when you step away, and checks with you before it acts on your behalf.
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Opus 5.5 x 🥞 x two dozen worlds
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I've posted about a dozen films and demos that Opus 5.5 made entirely in code. People keep asking what I typed. So I wrote it all down. The prompts, the steering, and what I learned along the way.
The prompts behind my Opus 5.5 films

The prompts behind my Opus 5.5 films

Article · @dfeinition
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thanks for the feedback on the Claude Code Desktop launch this week. we'll continue to iterate based on feedback (yes, group by folder is coming back). our small team is grateful to be building for so many of you!
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Does this work with Claude posts?
Image from Dan Fein (@dfeinition)
Steve Ruiz (@steveruizok) profile pictureSteve Ruiz
@steveruizokOct 15
Free engagement rn for screenshots of anthropic posts with text highlighted
Image from Steve Ruiz (@steveruizok)
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Dan Fein retweeted
R (@wheresryan22) profile picture
R
@wheresryan22Oct 10
Introducing Anatomy Describe a machine in one line. Claude brings it to life. - Interactive isometric wireframes you can rotate, inspect and explore - WebGL shaders for fire, water, plasma and more - Real 3D motion, with individual parts that rotate and move Install it as an agent skill. Fully open source.
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Dan Fein retweeted
shadcn (@shadcn) profile picture
shadcn
@shadcnOct 10
Most of what I do in Claude Code now are in Projects.
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Pro/Max? ✅ On Claude Projects waitlist? ✅ You're in!
ClaudeDevs (@ClaudeDevs) profile pictureClaudeDevs
@ClaudeDevsOct 9
We just let in every Pro and Max user from the Claude Code Projects waitlist! If you're new to Claude Code Projects, here's a 4 minute walkthrough to get you started:
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I’ve found that just by chatting and working naturally with Claude Projects, I end up teaching them. Now it feels like I’m "prompting" less and talking more. 🧵 Here’s how:
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The more my Projects know, the more a short "prompt" gets me. Because Claude's learning with me here I just get further, faster.
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I’m excited for the new Claude Projects to continue rolling out. To be the first to know when it’s more broadly available, join the waitlist here: claude.com/form/projects
Projects are becoming a conversation with Claude

Projects are becoming a conversation with Claude

Meet your AI thinking partner. Tackle complex problems, analyze data, write code, and collaborate on challenging projects.

claude.com
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