.@daytonaio wrote a guide for having Claude draw inside a Daytona sandbox.
Good if you learn better from a worked example than from reference docs.
.@browser_use put together a toolset for Claude's new computer use and browser tools.
If you already drive a browser with it, this is the on-ramp to wire it into Claude without writing the glue yourself.
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Play chess against Claude Code while you work
I made this Mod that lets you play chess against Claude while your session keeps running
It opens a sidebar with the board, and you can make moves by typing them or clicking with your mouse.
Every Claude move shows how many tokens it used, with the full move history recorded.
Install it with one command:
npx claude-code-templates@latest --mod games/chess
Everything is open source:
Enjoy the weekend building and playing chess with Claude!
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New Claude Code Mod… it keeps getting more hackable and customizable
This Mod lets you see every subagent running in your session
You won’t lose track of them anymore... they stay visible in the sidebar, where you can review what each one has done and how much context it has used
Install it with one command:
npx claude-code-templates@latest --mod ui/agent-flow
Link:
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hi I helped build this. let's get claude connected to the world! ask me questions!
> This seems compelling, but I don't know much about formal verification. Read Boris's tweet and create a video explaining the concept.
New channel for us to share tips, tricks, and updates for developers:
Claude Opus 5.5 drew each frame of this animation in JavaScript. Here's "how browsers work" in 40 seconds.
how was your first day building with Opus 5.5? :)
🤩 one shot Opus 5.5.
My kids are massive fans of geometry dash style games like this. Especially paired with a banger background track.
I typed one prompt into Claude Opus 5.5.
27 minutes later, this game was playable. 1,087 lines of code. I didn't write a single one.
The exact prompt is in the video.
What should one prompt build next? #vibecoding#
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We’re also launching Claude Sonnet 5.5 and Haiku 5.5 in the coming weeks. These models will come with many of the same improvements to performance, efficiency, and safety.
With that, happy building everyone.
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This looks like a video of the Golden Gate Bridge, but it's actually entirely generated using code by @claudeai Opus 5.5.
From my testing, I think Opus is just as good at building 3D scenes as Astra.
📌 Watch my latest video to see how Opus and Astra compare on this scene and more:
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Reminder: the Admin API is in the SDKs now. client.beta.organization covers invites, workspaces, API key audits, service accounts, and rate limits.
Here's a cookbook to see how to onboard a team end to end:
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We're trying, friends!
I think this was one of the most requested features I've heard.
We're adding support for AGENTS.md to Claude Code.
Starting today in version 2.1.277, if there is no CLAUDE.md in a folder, Claude will check for and use AGENTS.md.
You can toggle this behavior in /config.
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Great use-case for claude managed agents!
Biologists use specialized open-source models for tasks like modeling the structure of molecular systems, designing drug-like molecules, and predicting the effects of genetic mutations. But these models are often expensive to run, potentially limiting their impact.
In our latest Science Blog, we share how Claude was able to optimize inference for more than 30 open-source models, making them 4x faster on average, partly by writing custom software for GPUs. We’re open sourcing all of the optimization code.
Read more:
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I think Claude Managed Agents strikes the right balance here, the sandbox is optional and can be spun up independently of the rest of the agent loop.
I recently ported an old project that was focused on bash tool calling to CMA and it worked well!
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New machine?
brew install anthropics/tap/ant
Using Claude Code to drive the ant CLI to setup and use the API is so nice.
This is really neat! In Stripe's UnseriousT-ShirtShopBench, models were asked to build and run online stores.
They all chose to integrate Stripe. Of the 7 functional shops, 5 were built by Claude, and the 2 finalists that were chosen for production were built by Fable and Opus. But seems like models still have a ways to go!
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Claude Mods are landing now. Someone already built a Tetris-in-Claude mod 🤯
See issue for the latest community update, technical details, and more cool demos
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