Lending Pools - Vanna

Each pool has one Reserve at ["reserve", mint] and one share mint (vTokens) at ["share_mint", mint]. Pools exist for USDC, USDT and SOL. Every other asset is collateral only.

Balances that matter

Field	Meaning
`accounted_liquidity_assets`	Cash credited by measured transfers
`total_borrow_assets`	Outstanding principal plus accrued interest
`total_borrow_shares`	Sum of borrower shares
`total_supply_shares`	Sum of lender shares, counted by the reserve itself
`accrued_protocol_fees`	Reserve-factor slice, not lender equity
`borrow_index_wad`	Cumulative borrow growth

lender_total_assets = accounted_liquidity + total_borrow − protocol_fees
available_cash      = accounted_liquidity − protocol_fees
utilization         = borrows / (cash + borrows)

Unsolicited transfers into the liquidity vault do not increase accounted_liquidity_assets, so they can’t inflate the vToken rate. Because the reserve counts its own shares, vTokens burned outside Vanna don’t change anyone’s claim either.

Caps

supply_cap limits total lender assets. borrow_cap limits total borrows.

Status and modes

Each reserve has a status:

Status	Supply	Redeem	Borrow	Repay
Active	Yes	Yes	Yes	Yes
SupplyOnly	Yes	Yes	No	Yes
RepayOnly	No	Yes	No	Yes
Frozen	No	No	No	Yes

The protocol also has an operating mode (Normal, BorrowPaused, WithdrawOnly, Halted). An action must pass both. Repay is always available. See Interest Rate Model.