Founding Engineer @mastra, formerly staff+ engineer @netlify and @gatsbyjs

Victoria, BC, Canada
Joined May 2016
🚨We shipped a new context engineering primitive @mastra today, Agent Signals! (alpha) πŸ”“Unlocks: multiplayer steering, dynamic cacheable system prompts, agent notifications (gh/email/etc), and automatic behavior guidance 🧡
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Tyler Barnes retweeted
We’ve worked with hundreds of teams shipping Mastra agents into production. Now, it's your turn. We're introducing Mastra Launch and offering hands-on FDE support to get your agent live within 90 days. Let's chat: calendly.com/mastra-team/lau…
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Tyler Barnes retweeted
21 months later same restaurant
okay the gatsby gang was back together this week in SF for a @mastra onsite so this week's changelog is pretty epic πŸ‘‡
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Tyler Barnes retweeted
Incredibly stoked to launch Thread View for traces in the Mastra studio. Zoom in to see a single chat turn and its associated span. Zoom out to see the whole conversation and underlying trace:
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Over the last year, we've met some incredible folks building agents for clients. So today, we're launching the Mastra agency program: A small list of agencies certified by our FDEs, with a direct line to us and visibility into our roadmap. mastra.ai/blog/mastra-agency…
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Mastra Connect:
Agents need to get knowledge and take actions. So today we're launching Mastra Connect! Run πš–πšŠπšœπšπš›πšŠ πšŒπš˜πš—πš—πšŽπšŒπš 𝚊𝚍𝚍 from the CLI to give your agent Slack, Linear, Notion and 20 other services with 900+ tools:
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Tyler Barnes retweeted
Agents need to get knowledge and take actions. So today we're launching Mastra Connect! Run πš–πšŠπšœπšπš›πšŠ πšŒπš˜πš—πš—πšŽπšŒπš 𝚊𝚍𝚍 from the CLI to give your agent Slack, Linear, Notion and 20 other services with 900+ tools:
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Tyler Barnes retweeted
Today we shipped our #1 feature request for Mastra Factory: it now connects to Jira, GitLab and Incident.io Connect your backlog and start churning through tickets:
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Today we're launching memory hooks! Lifecycle hooks (πš˜πš—π™Ύπš‹πšœπšŽπš›πšŸπšŠπšπš’πš˜πš—πš‚πšπšŠπš›πš, πš˜πš—πšπšŽπšπš•πšŽπšŒπšπš’πš˜πš—π™΄πš—πš, etc) to trigger external events Transform hooks (πš‹πšŽπšπš˜πš›πšŽπ™Ύπš‹πšœπšŽπš›πšŸπšŠπšπš’πš˜πš—, πšŠπšπšπšŽπš›πšπšŽπšπš•πšŽπšŒπšπš’πš˜πš—, etc) to alter how memory is stored:
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Tyler Barnes retweeted
took us 20 months to hit 1M less than 4 months later, we hit 2M
2M DOWNLOADS BABY πŸ“ˆπŸ“ˆπŸ“ˆ
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Tyler Barnes retweeted
*deep breath* people think I'm joking when I tell them that to develop taste for software they need to have brunch with their friends, watch old movies and find old records, walk around metropolitan cities and observe how the building styles lend to the personality of the people around them, but I'm so fkin dead serious. where else is this mythical "taste" going to come from? what are you doing to parse the human condition? mf you can barely decide what discomfort you're subjecting yourself to in finding out what you like/dislike, and I'm supposed to trust you to make decisions for millions of people? go do some pottery and come back to me and describe the joy you felt without faffing about curves or whatever, I need you to feel the clay under your fingernails and fall in love with mud. even steve had the decency to drop acid on a sweaty beach in goa to find himself, the least you can do is listen to your friends talk about their lives over a meal without getting distracted by your phone. *exhale*
Interviewing a staff engineer in 2026
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Making our components beautiful πŸ˜ƒ
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the integration I didn't realize I needed πŸ”₯ so sick
Today we're excited to launch our Vitest integration! Catch agent regressions with your favorite testing library:
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Tyler Barnes retweeted
Mastra for civic engagement:
I have spent most of the day working on my Milwaukee Budget Decoder web app. It takes the Mayor's proposed 2027 budget and turns it into a civic engagement tool that helps Milwaukeeans understand what's in the budget and how it affects them. I built it with Claude Code using their latest model, Opus 5.5. I built a RAG system for the budget documents, which is hosted by Neon in a vector database. I included a feature for Milwaukeeans to provide a 'tax receipt' based on where you live (connected to MPROP data from the city). I also built an agent powered by the Mastra agent framework that integrates with a generative UI chat interface powered by @CopilotKit and OpenUI. Frontend hosted on @Vercel. The site will be live soon. The code will be open-source and available on GitHub. It also works on smartphones! #civictech
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Tyler Barnes retweeted
In the 72 hours after Jev dropped, we shipped a workflows classifier, tool approval classifier checks, classifier as judge scorers, and a classifier as a processor. Thinking about a model router too. Come hang out and chat w/ us about it on Th: luma.com/mastra-dwi3
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Tyler Barnes retweeted
Listen along with the Mastra team: radio.mastra.ai/
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Tyler Barnes retweeted
Today we're excited to launch error diagnosis! Every failed deploy now comes with an explanation that you can copy/paste into Claude Code or Codex to solve:
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Tyler Barnes retweeted
We launched Mastra Factory yesterday. It connects GitHub, Linear, and Slack to configurable boards. For us, that's Intake β†’ Triage β†’ Planning β†’ Build β†’ Review β†’ Done, but you can configure your own. πš—πš™πš– πšŒπš›πšŽπšŠπšπšŽ πšπšŠπšŒπšπš˜πš›πš’
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Tyler Barnes retweeted
why rent a software factory when you can own it? npm create factory
Today we're launching Mastra Factory. When we started building a factory, we weren't sure what to expect. But over the last few weeks it's has been writing 30% of our PRs, closing 60% of issues. Factory is free + open-source, now you can try it too: producthunt.com/products/mas…
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