Lee Danilek

Building @cursor_ai, formerly @convex, @dropbox, @Yale

[Lee Danilek @LDanilek]

@RyanEls4 Cosmic rays are radioactive, so you need the keyword 'volatile' to enable the computer's built-in cosmic ray detection

[Leonardo @mrloldev]

cursor just launched their GitHub replacement

called origin

[Cursor @cursor_ai]

We're excited to join forces with @SpaceX to advance the frontier of useful AI. Expect significant improvements to Cursor soon.

[Anthropic @AnthropicAI]

The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees.

The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance.

Access to all other Claude models is not affected.

We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible.

Read our full statement: https://t.co/bwn0sximKZ

[Lee Danilek @LDanilek]

@JackRhysider

[Lee Danilek @LDanilek]

@devheb @leerob I pulled seniority 😏

[Lee Danilek @LDanilek]

claim your username before it's taken
https://t.co/zaMPZN8gcA
👨‍💻

[eric zakariasson @ericzakariasson]

introducing cursor profiles!

go claim your handle at https://t.co/6t5lg2jqvg

[Lee Danilek @LDanilek]

@ericzakariasson @fredrikalindh :all-the-agents: !

[Michael Truell @mntruell]

Composer 2.5 is now the most-chosen model in Cursor.

We're giving everyone 10x usage for the rest of the day. Enjoy!

[Lee Danilek @LDanilek]

@aye_aye_kaplan @ericzakariasson @drawitpoorly @drawitpoorly me

[Jon Kaplan @aye_aye_kaplan]

@ericzakariasson cooked up a Twitter version of our fun internal Cursor Automation...

@drawitpoorly me

[Lee Danilek @LDanilek]

For me, bugbot is literally higher signal than the rest of CI

[Jon Kaplan @aye_aye_kaplan]

I am always in awe of how high our resolution rate is. This number is the percent of bugs that end up fixed by the author, as determined by AI at merge time.

You can see your own resolution rate in your cursor dashboard :)

[Jon Kaplan @aye_aye_kaplan]

I am always in awe of how high our resolution rate is. This number is the percent of bugs that end up fixed by the author, as determined by AI at merge time.

You can see your own resolution rate in your cursor dashboard :)

[Jediah Katz @jediahkatz]

Let's talk about why Cursor's agent harness is so good.

There's a misconception that first-party harnesses from the labs will always outperform. For many reasons, that isn't true.

There are roughly 6 layers that go into a good agent harness: orchestration, context, routing, transport, state, and execution (tools). Some of those involve careful context engineering, and others look a lot like the traditional craft of building great software.

Each of these layers needs to be optimized. And if any one of them is degraded, it can severely impact your experience with the agent. This blog post is mostly focused on context and tools, and there's still so much more to talk about there. We also want to spotlight the other (very crucial!) areas soon.

There's a lot more misinformation around the agent harness out there. I'll keep writing about how we build it behind the scenes.

[Michael Truell @mntruell]

Excited to partner with the SpaceX team to scale up Composer. A meaningful step on our path to build the best place to code with AI.

[Michael Feldstein @msfeldstein]

@pwnies @aye_aye_kaplan Do you think im playing fucking games here

[Lee Danilek @LDanilek]

@TheStithLord @sjwhitmore The editor is still available in cursor 3, and yes this feature is currently in editor-window. But the feature is coming soon to an agent window near you 🤫

[Lee Danilek @LDanilek]

You can make a grid of agents in Cursor! No one knows this but everyone should -- it's so good! I usually have 4-6 agents going at once

[Michael Feldstein @msfeldstein]

Glass / Agents Window is the big story of Cursor 3 but there's lots of improvements we made to the standard IDE, its not going anywhere.

My favorite is using standard vscode tabs for our chats so you can easily pull them out side by side and use all the standard VSCode shortcuts to manage them. It makes managing parallel agents a lot easier.

[Lee Danilek @LDanilek]

belt and suspenders: do it with fallbacks & redundancies. You don't need both belt an suspenders to hold your pants up, but with both they're surely not going to fall down.

I have never heard it outside of an LLM describing coding solutions. Had the same question and someone in slack explained it well.

[Lee Danilek @LDanilek]

@WatchNebula @adamhchase @thewheatgerm I hope that's a "wow i see 40 monkeys" face (haven't watched th ep yet)