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We’re excited to announce today that @mastra has raised a $22M Series A led by Spark Capital.
This brings our total capital raised to $35M:
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Sam Bhagwat
14.5K posts
Sam Bhagwat
@calcsam
building @mastra. author principles of building ai agents, the "most popular book in SF right now". prev cofounder @gatsbyjs
Katılım Ağustos 2012
2.8K Takip Edilen15.6K Takipçiler
@threepointone @swyxio it is an intentional move that we do not maintain our bluesky account
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@calcsam Hard gates before fuzzy judging is the right order for anything touching contracts or financial models.
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Today we're launching a major improvement to Mastra evals: gates and verdicts.
Gates are binary checks that return 0 or 1, great for checking tool calls. Verdicts let you write `assert` tests to pass/fail in CI.
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@calcsam One boundary I’d test: a gate can prove the expected tool-call condition was met; it can’t prove the business decision was correct.
In my local deterministic intake test, 30/30 frozen synthetic cases matched expected CONTINUE/STOP/HANDOFF across two runs. No LLM involved.
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I’m joining @OpenAI to help build the Codex app!
I’ve been using Codex all day, every day for months. It’s where I write every line of code I ship and get just about everything else done.
Can’t wait to help shape what comes next.
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Investors love seeing “hyper growth,” or at least > 2x/year when the company is young, because it’s the only path for the company getting large enough to create outsized returns.
I know, there’s a few exceptions. The fact that you can name them, proves the point.
Whether or not you care about that in particular, it’s still useful to know that if you ever want to 10x your business, you’ll have to do something different than to 2x it.
longform.asmartbear.com/lindy-effect/?…
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@mada299 We literally just rebuilt our demand-gen/revops stack over the weekend so we could take it all in house. Instant follow.
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AI is changing how we do GTM so fast that this is the first issue of something I've wanted to make for a while: The Upside-Down Funnel, a weekend letter about what we've been learning and experimenting with every week, at the edge of GTM. Less news, more of what we're pondering, building, and stealing from. Here we go. open.substack.com/pub/gtmaiengin…
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Big news! Thrilled for the Dagster family to be joining Prefect.
Jeremiah Lowin@jlowin
🎉 I’m very excited to share that @PrefectIO is acquiring @dagster! For years, Prefect and Dagster have raised the bar for each other and our category. That competition produced two exceptional products and two of the strongest open-source communities in the data ecosystem. Today, we’re bringing them together under one profitable company with the scale and financial strength to invest for the long term. Dagster and Dagster+ will continue as distinct products and brands, supported by many of the same people who built them. We’re committed to continued investment in both products and communities, and existing and new customers can keep using them exactly as they do today. The modern orchestration category has a new center of gravity. Our ambition extends far beyond consolidating today’s market. The next generation of automation starts with a fundamental question: how do you automate software that is, itself, autonomous? Agentic orchestration requires both a clear definition of what should be achieved and a runtime capable of following paths that can’t be known in advance. Prefect’s new portfolio gives us a fantastic foundation for that work: 🎯 Dagster brings declarative outcomes and lineage 🚦 Prefect brings flexible, durable execution 🔐 FastMCP brings governed access to the tools and data agents use We’ll draw on all three as we build a new platform for autonomous software. We’re combining two of the best orchestration teams in the world at exactly the moment the problem is becoming much bigger. I can’t wait for you to see what we’re building next. Happy engineering! Read more here: prefect.io/prefect-acquir…
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Sam Bhagwat retweetledi
Incredibly excited to share file-based agents in Mastra 🔥
Write the prompt in instructions.md, add .ts files in tools/ to define tools by filename, and place subagents in subagents/
Need a new capability? Just add another file
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Excited to launch custom signal providers in Mastra!
Now your agent can listen to new signal providers, poll for updates, or handle webhook requests to capture event payloads:
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@calcsam the honest answer is that agentifying your engineering org still leaves you dealing with the judgment problem someone has to tell the agent what to optimize for
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When you agentify your engineering org you ship more
And when you agentify your product org you ship better
We wrote up a blog post with everything we learned over the last few months building product agents
Having great product agents reduces the number of cycles you spend figuring out what to do, increases your confidence you’re shipping high priority customer features, and decreases the time between “launched” and “polished”
But it also requires user feedback data in the form of call recordings and Slack channels for users to raise issues
Here’s the post:
mastra.ai/blog/product-a…
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Sam Bhagwat retweetledi
Can’t get over the shipping pace at @mastra. Bananas.
Sam Bhagwat@calcsam
mastracode desktop coming soon
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@matt_slotnick this is basically a tailor made demo for you personally
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first AI commerce use case that’s ever resonated for me… personally will be very high ROI
Matt Deitke@mattdeitke
From taking a video of your bike and narrating the instructions that you want to sell it with your voice, Muse Spark 1.1 can complete the task with its computer use agent! From the great @xf1280! 😄
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A wallet for your agents
Circle@circle
Circle Agent Stack starter kits are now open source. Developers can add wallets, USDC payments, and onchain actions to AI agents across popular frameworks: → @OpenAI Agents SDK → @claudeai Agent SDK → @LangChain Deep Agents → @mastra → @vercel AI SDK → @GoogleAI ADK Pick your framework. Clone an example. Start building. github.com/circlefin/agen…
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@calcsam Do you think such AI agent wallets should have built in identity solutions? kakunin.ai/blog/kakunin-i…
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