Observability and Evals @Mastra
London
Joined July 2015
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Alex Booker retweeted
Builds are back up. Our recommendation now: revoke and rotate keys for any env variables stored on Mastra platform.
To reiterate: we have no evidence of impact.
Alex Booker retweeted
Mastra's platform is hosted on Railway and thus Mastra platform users are affected by the ongoing Railway security incident.
Comms here as things evolve.
Alex Booker retweeted
We shipped a new template for monitoring competitor pages.
A page edit doesn't always mean an important update. Use Jev to evaluate each change, and decide if it matters to you.
mastra.ai/templates/competit…
Alex Booker retweeted
Finally recorded the full breakdown on @mastra dynamic workflows.
Covers:
- why they exist
- who this is actually for
- the catch I didn't expect until I started building with it
@mastra just shipped dynamic workflows, this allows you to build reusable workflows by writing JSON instead of code.
Without redeploys. An agent can write the workflow for you.
Here's one being built and run live 👇
Full video on the why, who needs it, and where it actually can't do what you'd expect, coming soon.
Alex Booker retweeted
As of today, any custom agent built on @Mastra can talk to users in iMessage - powered by Photon.
𝚗𝚙𝚖 𝚒𝚗𝚜𝚝𝚊𝚕𝚕 @𝚙𝚑𝚘𝚝𝚘𝚗-𝚊𝚒/𝚌𝚑𝚊𝚝-𝚊𝚍𝚊𝚙𝚝𝚎𝚛-𝚒𝚖𝚎𝚜𝚜𝚊𝚐𝚎
Direct and group chats, two-way, with message deduplication handled for you.
Full technical breakdown ⬇️
Alex Booker retweeted
We’re excited to launch iMessage support for Mastra agents!
Now your agents get blue chat bubbles and triple dot typing indicators:
Alex Booker retweeted
Workshop next week about how to add authoritative context to your agent and reduce hallucinations:
Register here: luma.com/mastra-j17w
Alex Booker retweeted
In July, we shipped 17 features:
- real-time notif.
- browser recording
- custom signal providers
- schedules
- 1st-class skills
- file-based agents
- gates + verdicts
- tool hooks
- goals
- memory extractors
- agent factory
- Trace Intelligence
- Envs
- Regions
- rubric scorers
Alex Booker retweeted
We've all seen the feedback buttons in AI apps. I wanted to know what actually happens after you click one.
Built it with @mastra. Covers the feedback api, the scorers grading every response, and what happens when they disagree.
Alex Booker retweeted
@mastra thank you so much for having us! Had so much fun talking about self-improving apps and listening to really amazing speakers 😃
If anyone wants to chat about the architecture I spoke about, come say hi or shoot us a message @DefangLabs
Alex Booker retweeted
If you’re running @mastra in prod and want Prometheus metrics without adding an analytics DB, this is a great walkthrough from @CharlesGWilson.
He shows how to export agent latency, token, and cost metrics by listening to Mastra’s observability bus and serving /metrics.
imawilson.com/posts/export-m…
Alex Booker retweeted
grok 4.5 is now available in @mastra
Announcing Grok 4.5, our first model trained specifically for coding and agents. It was trained with Cursor and offers frontier intelligence at leading speeds and cost efficiency.
x.ai/news/grok-4-5
Alex Booker retweeted
Today we're introducing Schedules for Mastra agents and workflows.
Wake up your agent every minute, every hour, every day, or any cadence with a `cron` key:
