WIP: Add RebalancerClient scaffolding for Inventory Management System 2.0 #2826
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… 2.0 This PR is designed to open the discussion on designing an improved inventory manager system that supports the following features: - Allows arbitrary any to any rebalances - Allows user to specify target balances instead of percentages, which are easier to reason about The current system is limited to L1->L2 and L2->L1 flows and it handles them separately with different clients, this makes the code harder to maintain and also difficult to implement L2 to L2 rebalancing.
next up is to place an order in initializeRebalances
…tEstimatedCosts for HL
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The initial feature set of inventory manager 2.0 will support swapping cross chain between USDC and USDT. It should plug in seamlessly into the existing inventory client.
Features
Defines a new module under
src/rebalancerdesigned to be used by the same accounts that run therelayerprograms including the--relayerand--rebalancerprocesses. The new module can be run with the temporary--rebalancer2flag.Requirements
rebalanceris backwards compatible with the existing inventory client logic and its designed to be aware of all pending rebalances sent by the inventory client.Implementation
We will define a new configuration which will be a set of USDC/USDT target balances across all chains supported by Hyperliquid/Binance.
The IM 2.0 will compare those target balances against current balances as returned by the inventoryClient which will include any virtual balance modifications we currently make. This will produce a set of excesses and deficits, which the IM 2.0 will then attempt to reconcile by swapping between Hyperliquid and Binance. If there is no fortunate matching of excesses and deficits then the IM 2.0 will do nothing.
The IM 2.0 will also expose a function getPendingRebalances that can be used by the inventoryClient so that it doesn’t double count any inventory that gets swapped by the IM 2.0.
The initial version of IM 2.0 will not support same asset to same asset bridging, like we currently do with CCTP/OFT, but eventually it should implement this logic and take it away from the inventory client.
Structure
Integration with Inventory Client