Prove Everything.
Reveal Nothing.

// Define a capability attestation circuit in Circom
pragma circom 2.0.0;

template AgentCapabilityProof() {
    // Public inputs
    signal input capability_hash;
    signal input minimum_score;
    
    // Private inputs (hidden)
    signal private input model_hash;
    signal private input test_results[100];
    signal private input secret_nonce;
    
    // Compute average score privately
    signal total_score;
    signal average_score;
    
    total_score <== Sum(test_results);
    average_score <== total_score / 100;
    
    // Assert capability meets minimum requirement
    component gt = GreaterEqualThan(32);
    gt.in[0] <== average_score;
    gt.in[1] <== minimum_score;
    gt.out === 1;
    
    // Verify capability matches claimed hash
    component hasher = Poseidon(3);
    hasher.inputs[0] <== model_hash;
    hasher.inputs[1] <== average_score;
    hasher.inputs[2] <== secret_nonce;
    hasher.out === capability_hash;
}

component main = AgentCapabilityProof();

// Agent using ZKP for capability attestation
class ZKPEnabledAgent:
    async def prove_capability(self, capability: str, min_score: float):
        # Generate proof without revealing model details
        proof_input = {
            "capability_hash": self.hash_capability(capability),
            "minimum_score": int(min_score * 100),
            # Private inputs - never sent to verifier
            "model_hash": self.model_hash,
            "test_results": self.benchmark_results,
            "secret_nonce": self.generate_nonce()
        }
        
        # Generate SNARK proof (~2 seconds)
        proof = await self.zkp_prover.generate_proof(
            circuit="capability_attestation",
            inputs=proof_input
        )
        
        # Proof is only 192 bytes!
        return {
            "proof": proof.serialize(),
            "public_inputs": {
                "capability": capability,
                "min_score": min_score
            }
        }
    
    async def verify_peer_capability(self, peer_did: str, proof_data: dict):
        # Verify in <100ms
        is_valid = await self.zkp_verifier.verify(
            proof=proof_data["proof"],
            public_inputs=proof_data["public_inputs"]
        )
        
        if is_valid:
            # Trust established through mathematics, not reputation!
            await self.delegate_task_to(peer_did)