Introducing Built-in Tools for Mastra Agents

Your Mastra agents can now use five built-in tools for common tasks like: creating a TODO list, or searching the web.

The following tools are included in @mastra/core and can be used with both agents and workflows:

• Keeping a durable task list
• Searching the web
• Fetching a URL
• Asking users questions
• Submitting plans for approval

If you’re prototyping an agent, built-in tools can get you up and running faster, and when you’re ready, you can swap them out for provider-specific tools.

All built-in tools integrate with Studio — task lists render as a live panel, ask-user prompts as a chat pause, and plan approvals as an approve/reject card, making it easier to interact and test your agent during development.