Alex Booker @bookercodes
Building @Mastra - teaching you how to build agents along the way booker.codes London Joined July 2015-
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Since we started Mastra, people have asked for an agent builder. Today we’re launching one!! 🚀 Not a generic builder... but one designed for engineer-led teams. Developers define the tools, models, and guardrails in code - everyone else uses a chat-based builder to describe the agent they want, test it, and build on top of the primitives engineering exposes. That means PMs, ops, support, sales, and other teammates can prototype useful agents without waiting on the backlog, while engineering still controls auth, permissions, allowed tools, storage, model defaults, and cost. Anyone can publish to an internal agent library or deploy their agent to Slack with one click (Teams coming soon!) And should an agent outgrow the builder, you can eject it into a TypeScript project and graduate it to an engineering project. This is very unique!
@TotalWorldApps Agents are for everyone!
🔴 Mastra Agent Builder workshop happening now! x.com/i/broadcasts/1…
@HelloFabrik @mastra Excellent! What was your use case for ACP?
@blackgirlbytes Mastra is hosting TypeScript AI Conference on €¡¡July 23 if you want to come!
@marlene_zw Hey Marlene! Sent you a DM here on X - can you check? I have almost to zero confidence X delivered the chat notification properly 😂
The Mastra server is a fundamentally Hono server So you can add middleware Here's a handy one I've been using lately to log the current user's role Handy when debugging auth
We're launching Agent Builder, your internal agent platform: - Devs write tools, select models, build workflows - Non-dev teammates assemble into agents (or vibe code), chat, publish - Includes RBAC, ownership, and visibility controls - Under the hood everything's Mastra agents
New podcast, new format. Three founders join us. Waste Tokens, Save Time 00:00 Three Frontier Founders 01:27 AI Software Factories 04:15 Waste Tokens, Save Time 05:47 Models Instructing Humans 09:30 Is Pure Software Dead? 12:04 You Don't Get Stuck Anymore With @rauchg, @maxhodak_, and @bscholl.
In Mastra too 😉
if you havent yet announced that opus 4.8 is available* in your product youre unfortunately ngmi it was released 1hr ago, what are you even doing *available in raycast
🔴 Live with @wardpeet, Mastra head of open source, teaching you all about A2A and ACP x.com/i/broadcasts/1…
Software went from desktop-first to mobile-first, now going to agent-first.
@fmerian I learned at Clerk how the small design details add up in a big way
Clean cursor tracking effect detail 😮💨
Agents and Money is special I was lucky enough to speak at the inaugural event in SF, and now in London I'll be talking about - prompt caching - right-sizing models -and how to keep a runaway agent from breaking the bank with guardrails Register below
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