The flow

Clicking Eruption on an ITM option triggers a single transaction that:

• ▸1. Flash-borrow the strike cost (USDC for a call, underlying for a put) from Mantle or a fallback source.
• ▸2. Exercise the option at the vault — pay the strike, receive the underlying (for a call) or sell the underlying (for a put).
• ▸3. Swap the received asset back to the borrowed one via Uniswap v3.
• ▸4. Repay the flash loan plus fee.
• ▸5. Transfer the net profit to you.

When it's profitable

The post-exercise swap must cover: flash loan fee + protocol fee + any swap slippage. Eruption only enables when the projected net is positive. If your option is ITM but only barely, the button shows the projected shortfall so you know to wait or exercise manually.