Perpetual Position Size Reduction Executor

WHAT IT DOES

This tool enables DeFi traders and perpetual position holders to reduce their position sizes. Reducing a position decreases exposure to market movements and may release excess collateral that can be withdrawn. It is a key risk management action for traders looking to decrease leverage or lock in profits. It connects to your wallet and reads the perpetual contract address, position ID, current position size, collateral amount, entry price, liquidation price, reduction amount, margin ratio, reduction history, and timestamps. The tool signs and submits transactions to reduce perpetual position size, withdraw excess collateral, update position status, record reduction metadata, and emit reduction events.

HOW TO USE

1. Connect your wallet using the wallet bridge (supports MetaMask, WalletConnect, and other EVM-compatible wallets).

2. Select the target network that matches your perpetual contract deployment.

3. Enter the perpetual contract address and the position ID, then click "load contract" to initialize the connection.

4. Click "fetch position status" to retrieve your current position size, collateral amount, entry price, liquidation price, and margin ratio.

5. Review your position details — this helps you understand your current exposure and risk.

6. Enter the reduction amount (the amount of position size you want to reduce).

7. Click "validate reduction" to verify that the reduction amount is valid and does not exceed your current position size.

8. Click "check reduction history" to view past reductions for this position.

9. Review the current size, reduction amount, and new size before executing.

10. Click "reduce position" to sign and submit the transaction that reduces your position size and adjusts your collateral.

TECHNICAL MECHANISM

The tool uses ethers.js v5.7.2 to interact with any EVM-compatible perpetual contract that implements a standard reduction interface (getPosition(uint256) view returns (uint256 size, uint256 collateral, uint256 entryPrice, uint256 liquidationPrice, uint256 marginRatio), reducePosition(uint256, uint256) external, getReductionHistory(uint256) view). The reducePosition function validates that the caller owns the position, the reduction amount does not exceed the current size, and the remaining position meets the minimum size requirements. The function reduces the position size, recalculates the liquidation price based on the new size and collateral, and releases excess collateral that is no longer needed to maintain the position. The contract maintains a history of reductions, storing timestamps and amounts for audit purposes. Transaction handling follows EIP-1559 gas price calculations using receipt.effectiveGasPrice for accurate cost reporting. Reduction metadata is recorded both in the contract's history and locally for the user's reference.

WHAT IT CANNOT SEE

This tool operates purely on-chain and cannot verify off-chain market conditions — it does not assess whether reducing the position is optimal given current market prices, liquidity conditions, or alternative opportunities. It cannot predict price movements — the tool cannot forecast whether reducing the position will prevent losses or miss gains. It cannot ensure optimal reduction timing — the tool does not provide guidance on when to reduce positions. It cannot detect liquidation risk — the tool cannot predict whether the position will be liquidated after reduction. The tool also cannot guarantee that reduction prevents losses — while reducing position size decreases exposure, it does not eliminate the risk of loss entirely.

PLEASE NOTE

This tool works exclusively with EVM-compatible blockchain networks (Ethereum, Polygon, Arbitrum, Optimism, Base, etc.). It requires the perpetual contract to implement the reduction interface described above. All transactions incur gas fees paid by the connected wallet. The tool maintains no persistent storage — all state is refreshed from the blockchain on each session. Reducing a position is a significant risk management decision — ensure you understand the impact on your exposure, margin requirements, and liquidation price before executing. Consider the current market conditions and your risk tolerance when choosing the reduction amount. Always verify the new position size and liquidation price after reduction to ensure your position remains properly managed.