feat: add keep assets option

Author: doomsower

package.json

@@ -20,7 +20,7 @@
     "pino-pretty": "^13.0.0"
   },
   "devDependencies": {
-    "@aws-sdk/client-s3": "^3.846.0",
+    "@aws-sdk/client-s3": "^3.848.0",
     "@biomejs/biome": "^2.1.2",
     "@commander-js/extra-typings": "^14.0.0",
     "@commitlint/cli": "^19.8.1",
@@ -29,7 +29,7 @@
     "@gearbox-protocol/cli-utils": "^5.38.4",
     "@gearbox-protocol/liquidator-v2-contracts": "^2.4.0",
     "@gearbox-protocol/next-contracts": "npm:@gearbox-protocol/liquidator-v2-contracts@2.5.0-next.3",
-    "@gearbox-protocol/sdk": "8.7.0",
+    "@gearbox-protocol/sdk": "8.9.0",
     "@gearbox-protocol/types": "^1.14.8",
     "@types/node": "^24.0.14",
     "@uniswap/sdk-core": "^7.7.2",

src/config/schema.ts

@@ -388,6 +388,14 @@ export const ConfigSchema = z.object({
     description: "Flag to enable less eager liquidations for LRT tokens",
     env: "RESTAKING_WORKAROUND",
   }),
+  /**
+   * List of assets to keep on account after liquidation
+   */
+  keepAssets: optionalAddressArrayLike().register(zommandRegistry, {
+    flags: "--keep-assets <assets...>",
+    description: "List of assets to keep on account after liquidation",
+    env: "KEEP_ASSETS",
+  }),
   /**
    * Use this mechanism to swap underlying token to ETH after the liquidation (abandoned feature)
    */

src/services/liquidate/SingularFullLiquidator.ts

@@ -33,11 +33,12 @@ export default class SingularFullLiquidator extends SingularLiquidator<FullLiqui
   public async preview(ca: CreditAccountData): Promise<FullLiquidationPreview> {
     try {
       const { tx, routerCloseResult, calls } =
-        await this.creditAccountService.fullyLiquidate(
-          ca,
-          this.client.address,
-          BigInt(this.config.slippage),
-        );
+        await this.creditAccountService.fullyLiquidate({
+          account: ca,
+          to: this.client.address,
+          slippage: BigInt(this.config.slippage),
+          keepAssets: this.config.keepAssets,
+        });
       return { ...routerCloseResult, calls, rawTx: tx };
     } catch (e) {
       throw new Error("cant preview full liquidation", { cause: e });

src/services/liquidate/partial/v300/constants.ts

@@ -6,4 +6,5 @@ export const V300_PARTIAL_LIQUIDATOR_BOTS: Record<Curator, Address> = {
   "Chaos Labs": "0x0f06c2bD612Ee7D52d4bC76Ce3BD7E95247AF2a9",
   cp0x: ADDRESS_0X0,
   Re7: ADDRESS_0X0,
+  Invariant: ADDRESS_0X0,
 };