Add OUSD harvest

README.md

@@ -17,6 +17,7 @@ Need a bot? Or looking for MEV? You've come to the right place partner 🤠
 | Maker wstETH liquidations        | Liquidations   | Reocurring                 | Liquidate bad wstETH debt positions on Maker to earn liquidation bonus | [Link](/specs/maker-wsteth-liquidations.md)
 | Vesper VUSD Arbitrage        | Arbitrage   | Reocurring                 | Arbitrage between the VUSD and USDC/DAI | [Link](/specs/vusd-arbitrage.md)
 | Liquity             | Liquidations |       Reocurring       | Liquidate undercollateralized Troves to earn liquidation bonus  | [Link](/specs/liquity-liquidations.md)  |
+| OUSD             | Harvest |       Reocurring       | Harvest and sell reward tokens. 1% of proceeds to caller. | [Link](/specs/ousd-harvest.md)  |
 
 ### Want to list your protocol's opportunity?
 

specs/ousd-harvest.md

@@ -0,0 +1,56 @@
+## OUSD Reward Token Harvesting
+
+### Description
+
+The OUSD Harvester contract collects reward tokens earned by the OUSD strategies, sells them, and sends them on to increase protocol yield. Anyone can call the harvest and earn 1% of the resulting USDT for doing so. Chainlink oracles are used to ensure the sale prices are within limits.
+
+### Difficulty
+
+moderate
+
+### Recurring
+
+This opportunity occurs whenever the USDT to be gained from the harvest is greater than the gas cost to execute the transaction.
+
+### Steps to capture MEV
+
+1. Pick the right moment when it will be profitable
+2. Call the harvest
+
+### How to call
+
+To harvest, you call harvester.harvestAndSwap(strategyAddress, rewardTo).
+
+The harvester address and available strategy addresses can be found in the strategy tab of the OUSD [contract registry](https://docs.ousd.com/smart-contracts/registry) docs. There are multiple strategies. Only some strategies may be active at any given time.
+
+The rewardTo address is the account that will receive the USDT funds as a reward for calling the function - use your own address for it.
+
+
+### Harvest ABI
+
+```
+[{
+  "inputs": [
+    {
+      "internalType": "address",
+      "name": "_strategyAddr",
+      "type": "address"
+    },
+    {
+      "internalType": "address",
+      "name": "_rewardTo",
+      "type": "address"
+    }
+  ],
+  "name": "harvestAndSwap",
+  "outputs": [],
+  "stateMutability": "nonpayable",
+  "type": "function"
+}]
+```
+
+### Support
+
+OUSD has a [guide on calling this](https://docs.ousd.com/guides/incentivized-harvesting-guide) in the docs.
+
+If you have a question, feel free to contact a developer in the Orign Dollar discussion channel in the [Origin Protocol Discord](https://discord.gg/w7kEuJs7N2).