MASTRA

One agent run crashes mid tool call, waits two days for approval, then retries a charge. How LangGraph, Mastra, Pydantic AI and OpenAI Agents SDK handle it.

On June 17, 2026, attackers hijacked a dormant Mastra contributor account and pushed malicious versions of 140+ packages. The payload steals crypto wallets, browser data, and cloud credentials. Here is what happened, how to check your lockfile, and what to do if you installed an affected version.

Both Mastra and LangGraph.js are serious TypeScript agent frameworks - but they start from opposite philosophies. Here is what that means for your next project.

Four mature, production-ready TypeScript frameworks have made building agents genuinely enjoyable. Here is how to pick the right one - and how they fit together.

Mastra is the strongest fit when a TypeScript product needs agents, workflows, memory, tools, MCP, evals, and traces in one backend layer. It is not the right answer for every chat feature.

A practical field note on where Mastra, CopilotKit, and LangGraph fit when you are building the same agent-native product interface.

CopilotKit is strongest when you treat it as the product-facing agent UI layer: chat surfaces, frontend tools, shared state, generative UI, and human approval around a backend agent.

Deep comparison of the top AI agent frameworks - LangGraph, CrewAI, Mastra, CopilotKit, AutoGen, and Claude Code.