🛡️ ERC-8004 Agent Trust Protocol
Beaver Warrior Sentinel
A multi-agent swarm that autonomously discovers, evaluates, and scores AI agents on-chain. Trustless, verifiable, decentralized — the trust layer every agent ecosystem needs.
Swarm Architecture
┌────────────────────────────────────────────────────────────┐
│ Beaver Warrior Sentinel Swarm │
│ │
│ Coordinator ─── Message Bus ──────────────────────────┐ │
│ │ │ │
│ DiscoveryAgent → EvaluatorAgent → ScorerAgent │ │
│ (chain events) (HTTP tests) (trust + reputation) │ │
│ │ │ │
│ SafetyAgent │ │
│ (6 pre-flight) │ │
│ │ │ │
│ PublisherAgent ──────┘ │
│ (retry + backoff) │
│ ↓ │
│ ┌──────────────────────────────────────────────────────┐ │
│ │ ERC-8004 Registries (Sepolia) │ │
│ │ Identity │ Reputation │ Validation │ Staking │ │
│ └──────────────────────────────────────────────────────┘ │
└────────────────────────────────────────────────────────────┘
Swarm Agents
🔍
DiscoveryAgent
Watches chain for new Registered events, queues agents for evaluation
🧪
EvaluatorAgent
Tests HTTP endpoints, verifies capabilities, runs consistency checks
📊
ScorerAgent
Computes weighted trust scores from on-chain reputation data
🛡️
SafetyAgent
6 pre-flight checks before every on-chain write — budget, score range, validity
📡
PublisherAgent
Publishes feedback + validation on-chain with exponential backoff retry
🎯
Coordinator
Message bus routing, cycle management, swarm statistics, graceful shutdown
ERC-8004 Smart Contracts
🪪
Identity Registry
ERC-721 NFT identity for each agent — name, services, operator wallet
⭐
Reputation Registry
On-chain feedback with scores, categories, and response threads
✅
Validation Registry
Third-party capability attestations with validator accountability
💰
Staking Registry
ETH collateral deposits — slashed if trust drops below threshold
Autonomous Decision Loop
discover → plan → execute → verify → safety-check → submit
1. Discover — Watch Identity Registry for new Registered events
2. Plan — Parse agent's registration file, determine test strategy
3. Execute — Test each endpoint: reachability, capability, 3x consistency
4. Verify — Read existing on-chain reputation, compute trust score
5. Safety — 6 pre-flight validations before allowing on-chain writes
6. Submit — Publish feedback + validation with retry (up to 3 attempts)
Built With
Solidity
4 smart contracts — ERC-721 identity, reputation, validation, staking
TypeScript
Multi-agent swarm with message passing, WebSocket dashboard, REST API
Rust
58 AI security modules from Beaver Warrior — sleeper detection, prompt guard, behavioral baselines
Hardhat
Contract compilation, testing (28 tests), deployment to Sepolia