# Clip ### **Purpose** Handles collateral auctions, where liquidated collateral is sold to cover bad debt. CLIP ensures auctions operate fairly and efficiently using a Dutch auction mechanism. ### Key Responsibilities * Conducts auctions for liquidated collateral. * Ensures participants receive fair prices. ### Key Methods * `kick(tab, lot, usr, kpr)`\ Starts an auction with a debt amount (`tab`), collateral amount (`lot`), and Vault owner (`usr`). * Example Use: Kicking off an auction for a liquidated Vault. * `redo(id, kpr)`\ Allows keepers to reinitialize a stale auction, ensuring auction prices remain relevant. * `take(id, amt, max, who data)`\ Users can participate in an auction by calling this function.yank(id)\ Cancels an auction when debt is repaid or resolved through other means. * `file(what, data)`\ Configures auction parameters such as price decay rates or auction durations. * Example Parameters: * `tip`: Fixed incentive for starting an auction. * `cut`: Price decay factor per second. --- # 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.usdd.io/developers/core-contracts/clip.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.