# Operation Checklists Note that this refers to non-Illuminate `lend` and `redeem` calls - Illuminate calls are slightly different. ## Lend * [ ] Extract fee * [ ] Transfer underlying to lender contract * [ ] Swap the underlying for PTs * [ ] Verify receipt of PTs * [ ] Mint equivalent amount of Illuminate PTs to the user ## Redeem * [ ] Verify principal * [ ] Verify token has matured * [ ] Transfer PTs for the protocol from the Lender to Redeemer * [ ] Execute the redemption for underlying (if necessary, convert to underlying) * [ ] Update the holdings mapping (which determines how much underlying has been redeemed, necessary in the event of partial redemptions) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.illuminate.finance/smart-contracts/operation-checklists.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.