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The strategy engine is the brain of the yield agent. It evaluates every potential rebalance for net profitability before executing.

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Decision Criteria

Every rebalance must pass all of the following checks:

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1. APY Threshold

Move TypeMinimum ΔAPY
Same-chain>= 1%
Cross-chain>= 3%
Same-chain moves have no bridge fee, so a lower threshold is acceptable. Cross-chain moves must justify the CCTP cost.

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2. Net Gain Validation

The engine simulates the move over a 2-day holding period to ensure the APY improvement produces a meaningful net gain after any fees.

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3. Anti-Oscillation

If the agent recently moved away from a vault, it won’t move back unless the original vault is now >= 3% better than the current position. This prevents ping-pong behavior between vaults.

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4. Cooldown

A minimum of 15 minutes between consecutive cross-chain moves prevents rapid-fire transactions.

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Transfer Mode Selection

For cross-chain moves, the engine calculates the optimal CCTP transfer mode: 
breakeven = (fee% / ΔAPY) * 8760 hours
BreakevenModeFee
< 6 hoursFast Transfer0.01%
>= 6 hoursStandard Transfer0%
When the APY gain is large, the Fast Transfer fee is recovered quickly — so speed is prioritized. When the gain is modest, the Standard Transfer saves the fee.

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Monitoring Cycle

  • The agent checks all vault APYs every 10 minutes
  • Rankings are computed globally across all chains
  • Decisions include detailed logging with vault rankings and reasoning
  • Each cycle produces a strategy summary visible in the agent logs

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Example Decision

Current: Morpho USDC Core on Base at 4.2% APY Best available: Euler USDC Prime on Arbitrum at 8.1% APY ΔAPY = 3.9% (above 3% cross-chain threshold) Breakeven for Fast Transfer: (0.01% / 3.9%) * 8760 = 22.5 hours -> Standard Transfer selected Net gain over 2 days validated -> Execute rebalance