> For the complete documentation index, see [llms.txt](https://yield-finance.gitbook.io/yield-finance-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol.md).

# The Protocol

- [Vaults Architecture](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol/vaults-architecture.md)
- [Vault Lifecycle](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol/vault-lifecycle.md)
- [Smart Contract Architecture](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol/smart-contract-architecture.md)
- [Smart Contract Addresses](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol/smart-contract-addresses.md)
- [Strike Price Selection for Options](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol/strike-price-selection-for-options.md)
- [Options Settlement](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol/options-settlement.md)
- [Cross-Chain Execution](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol/cross-chain-execution.md)
- [Protocol Fees](https://yield-finance.gitbook.io/yield-finance-docs/the-protocol/protocol-fees.md)