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Sam Bhagwat

@calcsam • 17,702 subscribers

building @mastra. author principles of building ai agents, the "most popular book in SF right now". prev cofounder @gatsbyjs

Shorts

Incredibly excited today to launch file-based agents in Mastra! Add `instructions` as a .md file, a .ts file to `tools/` and the filename becomes the tool name, subagents in `subagents/`:

Incredibly excited today to launch file-based agents in Mastra! Add `instructions` as a .md file, a .ts file to `tools/` and the filename becomes the tool name, subagents in `subagents/`:

35,648 görüntüleme

Today Salesforce rolled out a Mastra harness in its agentic IDE as the default for all non-Anthropic models to its ~100k SFDX devs :

Today Salesforce rolled out a Mastra harness in its agentic IDE as the default for all non-Anthropic models to its ~100k SFDX devs :

25,201 görüntüleme

Starting today, Mastra agents and workflows can publish and subscribe through a built-in event system. Listen for events like workflow step finish, pause, or completion. Subscribe external systems to Mastra events, or vice versa.

Starting today, Mastra agents and workflows can publish and subscribe through a built-in event system. Listen for events like workflow step finish, pause, or completion. Subscribe external systems to Mastra events, or vice versa.

11,942 görüntüleme

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Today we're incredibly excited to launch Trace Intelligence. Teams shipping agents can spend months reviewing traces. So we auto-group traces into clusters and identify common patterns. Watch how your agent is actually doing:

Today we're incredibly excited to launch Trace Intelligence. Teams shipping agents can spend months reviewing traces. So we auto-group traces into clusters and identify common patterns. Watch how your agent is actually doing:

370,061 görüntüleme • 2 ay önce

Software engineering is becoming a hierarchy of loops. So today we're launching Mastra Factory: a system for agents to take software from issue into production. Get started with 𝚗𝚙𝚖 𝚌𝚛𝚎𝚊𝚝𝚎 𝚏𝚊𝚌𝚝𝚘𝚛𝚢:

Software engineering is becoming a hierarchy of loops. So today we're launching Mastra Factory: a system for agents to take software from issue into production. Get started with 𝚗𝚙𝚖 𝚌𝚛𝚎𝚊𝚝𝚎 𝚏𝚊𝚌𝚝𝚘𝚛𝚢:

140,069 görüntüleme • 2 ay önce

We’re excited to announce today that Mastra has raised a $22M Series A led by Spark Capital. This brings our total capital raised to $35M:

We’re excited to announce today that Mastra has raised a $22M Series A led by Spark Capital. This brings our total capital raised to $35M:

240,145 görüntüleme • 6 ay önce

we raised a $13m seed round from 120+ of Silicon Valley’s top investors for , the leading TypeScript agent framework

we raised a $13m seed round from 120+ of Silicon Valley’s top investors for , the leading TypeScript agent framework

354,997 görüntüleme • 1 yıl önce

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

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

111,587 görüntüleme • 4 ay önce

Today we're officially launching Jev in Mastra with the new Classifier primitive. Route requests, score outputs, or gate workflows:

Today we're officially launching Jev in Mastra with the new Classifier primitive. Route requests, score outputs, or gate workflows:

14,547 görüntüleme • 20 gün önce

Today we're launching Mastra `Harness` `Harness` gives you a `Session` with plan/build modes. It lets you manage thread lifecycle, spawn or fork subagents, approve tools per-call or session, ask user questions, queue/steer. With skills, sandbox, browser, heartbeat. channels:

Today we're launching Mastra `Harness` `Harness` gives you a `Session` with plan/build modes. It lets you manage thread lifecycle, spawn or fork subagents, approve tools per-call or session, ask user questions, queue/steer. With skills, sandbox, browser, heartbeat. channels:

59,262 görüntüleme • 4 ay önce

We’re excited to launch iMessage support for Mastra agents! Now your agents get blue chat bubbles and triple dot typing indicators:

We’re excited to launch iMessage support for Mastra agents! Now your agents get blue chat bubbles and triple dot typing indicators:

35,282 görüntüleme • 2 ay önce

We're excited to introduce Claude Code, Cursor, and Codex agents in Mastra. Starting today, Mastra is now a meta-harness:

We're excited to introduce Claude Code, Cursor, and Codex agents in Mastra. Starting today, Mastra is now a meta-harness:

58,409 görüntüleme • 4 ay önce

Today we're excited to launch dynamic workflows! Define a workflow as JSON, and Mastra will validate, register, and run it (like any other workflow). Now agents can build workflows on-the-fly:

Today we're excited to launch dynamic workflows! Define a workflow as JSON, and Mastra will validate, register, and run it (like any other workflow). Now agents can build workflows on-the-fly:

33,579 görüntüleme • 2 ay önce

Today we're launching skill search for Mastra agents! Give your agents dozens of skills, let it search and load on-the-fly:

Today we're launching skill search for Mastra agents! Give your agents dozens of skills, let it search and load on-the-fly:

21,909 görüntüleme • 1 ay önce

Today we're excited to launch sandbox computer use for Mastra agents! Your agent can now browse, click, type, and take screenshots in a sandbox:

Today we're excited to launch sandbox computer use for Mastra agents! Your agent can now browse, click, type, and take screenshots in a sandbox:

15,428 görüntüleme • 1 ay önce

We’re excited to ship Durable Agents in Mastra. Durable Agents don't just write to storage when an agent turn finishes; they persist the stream in real-time using a server cache. That lets them survive client disconnects, browser refreshes, or network blips:

We’re excited to ship Durable Agents in Mastra. Durable Agents don't just write to storage when an agent turn finishes; they persist the stream in real-time using a server cache. That lets them survive client disconnects, browser refreshes, or network blips:

26,346 görüntüleme • 3 ay önce

We just shipped Managed DBs in Mastra platform. Over the last couple months, a number of folks getting started asked us for off-the-shelf storage So we added support for Postgres (backed by Neon Postgres) and LibSQL/Turso.

We just shipped Managed DBs in Mastra platform. Over the last couple months, a number of folks getting started asked us for off-the-shelf storage So we added support for Postgres (backed by Neon Postgres) and LibSQL/Turso.

27,789 görüntüleme • 4 ay önce

Today we're excited to launch harness channels! Enable multi-user interactions on Slack, iMessage, WhatsApp, and Discord:

Today we're excited to launch harness channels! Enable multi-user interactions on Slack, iMessage, WhatsApp, and Discord:

11,832 görüntüleme • 1 ay önce

Today we're excited to launch rubric scorers in Mastra The LLM-as-judge scores your agent's output as meeting (say) 7 of 11 criteria With failed checks getting fed back to the agent to re-run:

Today we're excited to launch rubric scorers in Mastra The LLM-as-judge scores your agent's output as meeting (say) 7 of 11 criteria With failed checks getting fed back to the agent to re-run:

13,611 görüntüleme • 2 ay önce

Today we're launching sensitive data redaction in Mastra observability! Automatically strip out your users’ PII from agent traces:

Today we're launching sensitive data redaction in Mastra observability! Automatically strip out your users’ PII from agent traces:

11,577 görüntüleme • 2 ay önce

Today we're launching agent feedback! The best way to power agent learning is with real user reactions. Feedback stores thumbs, ratings, and comments next to traces and metrics. Then query them directly or visualize:

Today we're launching agent feedback! The best way to power agent learning is with real user reactions. Feedback stores thumbs, ratings, and comments next to traces and metrics. Then query them directly or visualize:

10,725 görüntüleme • 2 ay önce

Starting today, agents can use Mastra Studio, not just humans We shipped CLI Actions so your Claude Code, Codex, or Cursor agent can run Mastra agents/workflows, search memory, query traces, and turn failures into datasets:

Starting today, agents can use Mastra Studio, not just humans We shipped CLI Actions so your Claude Code, Codex, or Cursor agent can run Mastra agents/workflows, search memory, query traces, and turn failures into datasets:

12,843 görüntüleme • 3 ay önce

Your Mastra agent now has an inbox. Connect external sources like GitHub or Slack, subscribe to emitted events, wake up your agent with `urgent` priority events:

Your Mastra agent now has an inbox. Connect external sources like GitHub or Slack, subscribe to emitted events, wake up your agent with `urgent` priority events:

11,621 görüntüleme • 3 ay önce