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Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs

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Re: Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs

#11

Post by calcsam »

pancomplex wrote: post #4

We use typescript for all our entire stack and it's super dope to see a production-grade framework (with no vendor lock in) launch!

Thanks! That's a lot of why we built Mastra. We wanted something that felt like it was made for us.

Re: Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs

#14

Post by mrcwinn »

You’re not locked into a model, but you likely are locked in to a platform. This DX and convenience just shifts within the stack where the lock in occurs. Not criticizing - just a choice people should be conscious of.

Another useful question to ask: since you’re likely using 1 of 3 frontier models anyway, do you believe Claude Agent SDK will increasingly become the workflow and runtime of agentic work? Or if not Claude itself, will that set the pattern for how the work is executed? If you do, why use a wrapper?

Re: Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs

#17

Post by swyx »

> That last one took a bit of time, we went down the ESM/CJS bundling rabbithole, ran into lots of monorepo issues, and ultimately opted for a more explicit approach.

shudders in vietnam war flashbacks congrats on launch guys!!!

for those who want an independent third party endorsement, here's Brex CTO talking about Mastra in their AI engineering stack http://latent.space/p/brex

Re: Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs

#18

Post by calcsam »

mrcwinn wrote: post #14

You’re not locked into a model, but you likely are locked in to a platform. This DX and convenience just shifts within the stack where the lock in occurs. Not criticizing - just a choice people should be conscious of. Another useful question to ask: since you’re likely using 1 of 3 frontier models anyway, do you believe Claude Agent SDK will increasingly become the workflow and runtime of agentic work? Or if not Clau…

Re: lessons from coding agents, we're building some of the key abstractions like sandboxes, filesystem, skills/knowledge as Mastra primitives in over the next month.

For any agent you're shipped to production though you probably want a harness that's open-source so you more fully control / can customize the experience.

Re: Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs

#19

Post by mrcwinn »

calcsam wrote: post #18
mrcwinn wrote: post #14

You’re not locked into a model, but you likely are locked in to a platform. This DX and convenience just shifts within the stack where the lock in occurs. Not criticizing - just a choice people should be conscious of. Another useful question to ask: since you’re likely using 1 of 3 frontier models anyway, do you believe Claude Agent SDK will increasingly become the workflow and runtime of agentic work? Or if not Clau…

Re: lessons from coding agents, we're building some of the key abstractions like sandboxes, filesystem, skills/knowledge as Mastra primitives in over the next month. For any agent you're shipped to production though you probably want a harness that's open-source so you more fully control / can customize the experience.

I think that’s fair, totally, but I also think a Skill would be considered a primitive in and of itself by Anthropic. So to me it’s still wrapping an open primitive. Anyway, trade offs.

Re: Show HN: Mastra 1.0, open-source JavaScript agent framework from the Gatsby devs

#20

Post by calcsam »

swyx wrote: post #17

> That last one took a bit of time, we went down the ESM/CJS bundling rabbithole, ran into lots of monorepo issues, and ultimately opted for a more explicit approach. shudders in vietnam war flashbacks congrats on launch guys!!! for those who want an independent third party endorsement, here's Brex CTO talking about Mastra in their AI engineering stack http://latent.space/p/brex

LOL thanks swyx. Yeah we realized although we _could_ fight that war again...it would be better for everyone if we didn't...
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