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Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

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Re: Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

#31
Very excited about Mastra! We have a number of Agent-ic things we'll be building at ElectricSQL and Mastra looks like a breath of fresh air.

Also the team is top-notch — Sam was my co-founder at Gatsby and I worked closely with Shane and Abhi and I have a ton of confidence in their product & engineering abilities.

Re: Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

#32
post #19
post #16

Earlier quoted context omitted.

Yeah, this is something we've heard as well. No particular feature right now but we did ship an agent in local dev to help people improve their prompts.

I'm wondering since there seem to be a lot of frameworks/websites that support evals, even OpenAI has evals. Do you think that a lot of these components like observability and evals will eventually be consumed by either providers (like OpenAI) or an orchestration framework like Mastra (when using multiple providers, though even if you're using just one provider for many tasks I can see it belonging to the orchestrati…

I could be wrong but don't think OpenAI wants to be opinionated about that, except maybe the OpenAI solutions engineers :)

Re: Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

#33
post #14

I thought Kyle Matthews was the creator of Gatsby

Kyle started the project, I started helping pretty shortly thereafter, then he and I cofounded the company together. Kyle's working on ElectricSQL now but is using us, we're doing a meetup together next month, etc.

Come along :)

https://lu.ma/sync-sf

Re: Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

#37

This looks awesome! Quick question, are there plans to support SSE MCP servers? I see Stdio [0] are supported and I can always run a proxy but SSE would be awesome. [0] https://mastra.ai/docs/reference/tools/client

Hey! Glad to hear you're excited about it! Yes, we're currently working on improving our MCP support in general - we'll have more to share soon, but part of that is supporting SSE servers directly

Re: Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

#38

By the developers of Gatsby is a minus, not a plus makes me think this is going to be the next abandonware.

gatsby was one of the first static react frameworks, now you have things like nextjs remix astro etc... i dont think abandonware is fair, thats just the way software goes

Re: Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

#39
I don’t really understand agents. I just don’t get why we need to pretend we have multiple personalities, especially when they’re all using the same model.

Can anyone please give me a usecase, that couldn’t be solved with a single API call to a modern LLM (capable of multi-step planning/reasoning) and a proper prompt?

Or is this really just about building the prompt, and giving the LLM closer guidance by splitting into multiple calls?

I’m specifically not asking about function calling.

Re: Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

#40
"You may not provide the software to third parties as a hosted or managed service" - The Elastic v2 license isn't actually open source like your title mentions: "Open-source JS agent framework"

https://github.com/mastra-ai/mastra/blob/main/LICENSE

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