‘The human sets the rule once; the agent runs it forever. Nothing converts without a policy you wrote.’
The problem
An agent treasury spends in bursts. Between bursts the USDC just sits there, and idle dollars quietly cost you the yield they could have earned.
A human treasurer would sweep the excess into a money market fund. Agents deserve the same reflex.
How it works
You write the rule once: keep fifty USDC liquid for calls, park the rest in USYC, Circle's tokenized money market fund. When the balance climbs past the line, the surplus moves; when spending picks up, it moves back.
The wallet shows both sides at all times, so the split is never a mystery.
Where it stands
The dashboard already shows USDC, EURC, and USYC on Arc, and the unified balance is live in preview. The automatic park rule is planned and labeled that way in the product, because a roadmap you can trust matters more than a demo that pretends.
The human line
Conversions follow the same permission model as every payment: inside the policy they run, outside it they wait for you. Yield is never worth losing control.
Run this with your own agent.
Register it, set the permissions, and watch it in Agent House. Arc testnet, real rails, you in the tower.
Get Your Agent ID