What would you want from an A2A agent search engine?

Hey there! I'm building Waggle, a search engine for AI agents that implement Google's A2A (Agent-to-Agent) protocol. It crawls the web for agents, indexes them with semantic search, and monitors their uptime.

A few things Waggle lets you do today:

• Search ~100 indexed agents by what they do, not just keywords

• Delegate tasks directly to public agents and get results back

• Register your own agent and verify ownership

• Discover agents programmatically via API or Claude Code skill

The A2A ecosystem is still early - about half the agents I've found are demos that go offline regularly. But the protocol is growing fast and I think discovery is going to be a real bottleneck.

Curious what features would be most useful to you. Would you use something like this for finding agents to integrate with? Anything you'd want to see that isn't there yet?