Member of Technical Staff @AnthropicAI. Prev eng @Coinbase. 🛠️ Builder and investor. @Purdue alum. Views are mine.
Joined March 2011
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Brock Miller retweeted
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.
Brock Miller retweeted
New on our Engineering blog: Creating in-house source control.
In May, we merged around 2,500 code changes per day. In September, we merged more than 30,000 per day. As a result, we became bottlenecked by developer infrastructure built for human (rather than agent) scale.
Here, we share how we built a new version control system—and fully migrated our monorepo from git—in five months: anthropic.com/engineering/re…
Brock Miller retweeted
I agree with Dario that we need to pace the frontier. This has been a primary topic of discussions we've had at OpenAI in recent weeks.
Committing to having independent evaluators with employee-like access is a great idea, and we will do the same. We'll have more to share soon.
We Must Pace the Frontier: I’ve written a new essay on why the AI industry should slow down, with a three-part plan for doing so.
Anthropic is unilaterally committing to the first of these steps. We’ll provide third-party evaluators with permanent, employee-level access to our systems, so that they can verify adherence to our safety measures, report on incidents, and assess models’ alignment during training.
You can read the full post here: darioamodei.com/post/we-must…
Brock Miller retweeted
35M+ transactions have settled over x402. Until now, none of them touched a corporate ledger.
As of today, Agents can now make payments via x402 on Ramp with attribution and audit trails built in.
This lets Ramp customers:
1. Provision & fund agent wallets
2. Empower agents to buy via x402 on Solana
3. Use the ledgering and spend controls that finance teams expect out of the box
Are you a builder who wants to be in our alpha? Reach out via DM or the link below 👇
Brock Miller retweeted
You can now set Claude Code's output style to Concise.
Claude leads with the result, keeps responses short, and still gives full detail when you ask.
Turn it on in /config → Output style, or set "outputStyle": "Concise" in settings.json.
Brock Miller retweeted
New in Claude Code: your sessions can now message each other.
Instead of having to re-explain yourself in another session, you can now tell Claude to do it. It sends a summary (not your history or files), and the other session picks it up mid-task.
Update: after 8 incredible years at @coinbase, I made the hard decision last month to step back and pursue a new opportunity. I'm beyond grateful to have had the opportunity to work there for so long and with so many great colleagues. 🧵
As for what's next: I'm thrilled to share that I've joined @AnthropicAI as a Member of Technical Staff, helping push the frontiers of AI.
Over the last 12 months, I've watched my own job in software engineering change dramatically due to AI.
Brock Miller retweeted
A few patterns we frequently use with Fable 5:
Use Fable 5 as an "advisor."
An executor (Sonnet 5) calls Fable 5 for guidance.
Most tokens are billed at the lower executor rate.
