The Brief

Build a dapp where a user connects a wallet, then 'births' an AI agent that controls its own smart account. The owner grants the agent a scoped session key (daily spend cap, token allowlist, expiry) and chats with it in plain language: 'send 5 USDC to vitalik.eth', 'what's my balance?'. Every action the agent proposes is shown as a readable transaction preview before it executes.

Vibe Aesthetic

Clean-room lab, first light, onboarding ritual

Key Features

• Smart account per agent (ERC-4337 or EIP-7702 delegation)
• Session keys with spend caps, allowlists, and expiry
• Natural-language chat that maps to typed tool calls
• Human-readable transaction previews and a revoke button
• Jev (System One) approve/reject gate on proposed transactions and policy-fit scores before session keys act
• Jev model-routing middleware: fast pass routes simple chat to a small LLM vs complex tasks to a larger LLM
• Calibrated escalation: when Jev confidence is below threshold, require human co-sign before execution

Suggested Stack

Swap in whatever you like. Ship on a testnet first, and keep agent spending limits enforced onchain, not just in the prompt.