Agent ecosystem missing decentralized discovery and reputation layer

The agent-to-agent economy has its money and networking primitives, but no "Yellow Pages" to route requests reliably.

• –x402 and A2A provide robust rails for machine settlement and communication
• –Existing `/.well-known/agent.json` patterns provide basic discovery but lack reputation metrics or verified track records
• –Building an on-chain index of agent performance could prevent centralization of the discovery layer
• –This gap presents a massive opportunity for developers building infrastructure for the machine economy