Make a product you operate, and specifically **the MCP server it exposes**, discoverable and connectable **by other AI agents**. This is the **publish / register** side of agent discovery: you own an endpoint and you want third-party agents (and the humans directing them) to find it, trust it, and complete an auth handshake against it. It is product-agnostic; `customdomain.ai` is used only as a worked example (its MCP at `https://app.customdomain.ai/mcp`, its docs at `app.customdomain.ai`).
