AgentLair published an article on Dev.to yesterday titled "Payment Rails Are Shipping. Trust Rails Aren't. That's the Problem." The thesis is almost word-for-word what we've been saying since April 11: Payment rails verify token validity. They don't assess prior conduct. The payment infrastructure for AI agents is here. An agent can now transact at machine speed across any service that accepts Stripe. What's missing is L4: behavioral trust. We agree with every word. We've been building the L4 layer since launch day. But there's a critical gap in their framing that matters for anyone building in this space. The L1-L4 Model Is Right. The Solution Is Wrong. AgentLair proposes Agent Attestation Tokens (AATs) — "cryptographically verifiable, session-scoped, and behavioral." This is a reasonable approach for enterprise deployments where you control both sides of the transaction. But here's the problem: session-scoped attestation doesn't survive the session.…