Become an AI engineer

How tools connect

How tools connect is a unit of 9 lessons in Rabbithole's Become an AI engineer course, at levels 3 to 4.

Lessons

1. A2A: agent cards and keeping them safeLevel 3
2. JSON Schema for MCP toolsLevel 3
3. MCP Authorization: check the audience, never pass tokens throughLevel 3
4. OpenID Connect: short-lived tokens instead of stored secretsLevel 3
5. Streaming: getting output piece by pieceLevel 3
6. MCP Governance: how changes get proposed, reviewed and testedLevel 4
7. The MCP confused deputy attackLevel 4
8. WebRTC: connecting peers directlyLevel 4
9. WebSockets: connections that drop, move and resumeLevel 4

Sources

These lessons draw on 17 sources. The most used:

• modelcontextprotocol/modelcontextprotocol
• MCP Python SDK
• Lovable documentation
• OpenAPI Specification v3.2.0
• Supabase Documentation
• Agent Development Kit (ADK)
• Modal Guide
• Model Context Protocol Documentation

All units in Become an AI engineer