Tranche Vault Senior Deposit Tool

WHAT IT DOES

This tool enables DeFi users to deposit into the senior tranche of tranche vaults. Tranche vaults split deposits into senior and junior tranches with different risk and return profiles. Senior tranche deposits have priority claim on the vault's assets and yield, offering lower risk but potentially lower returns. Junior tranche deposits are subordinated — they take losses first but offer higher potential yields. It connects to your wallet and reads the tranche vault contract address, deposit amount, senior tranche share, junior tranche share, yield rate, lock period, deposit status, deposit history, and timestamps. The tool signs and submits transactions to deposit into senior tranche, update tranche allocation, record deposit metadata, and emit deposit 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 tranche vault contract deployment.

3. Enter the tranche vault contract address and click "load contract" to initialize the connection.

4. Click "fetch vault status" to retrieve the senior and junior tranche shares, yield rate, lock period, deposit status, and deposit history.

5. Review the tranche shares — this shows the allocation between senior and junior tranches in the vault.

6. Enter the deposit amount (in native token) to deposit into the senior tranche.

7. Click "validate deposit" to verify that the deposit amount is valid and the vault is accepting deposits.

8. Click "check deposit history" to view your past deposits.

9. Review the deposit amount, senior share, junior share, yield rate, and lock period before executing.

10. Click "deposit senior" to sign and submit the transaction that deposits your funds into the senior tranche.

TECHNICAL MECHANISM

The tool uses ethers.js v5.7.2 to interact with any EVM-compatible tranche vault contract that implements a standard interface (getTrancheShares() view returns (uint256, uint256), getYieldRate() view returns (uint256), getLockPeriod() view returns (uint256), getDepositStatus(address) view returns (uint8), depositSenior(uint256) external payable, getDepositHistory(address) view). The depositSenior function accepts the deposit amount, validates that the caller has not already deposited, and allocates the deposit to the senior tranche. The contract calculates the yield based on the senior tranche's share of the vault's total yield. The getTrancheShares view returns the current allocation between senior and junior tranches, allowing users to see the vault's risk profile. The getLockPeriod view returns the time period during which the deposit is locked. The contract maintains a history of deposits, storing timestamps and amounts for audit purposes. Transaction handling follows EIP-1559 gas price calculations using receipt.effectiveGasPrice for accurate cost reporting. Deposit 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 yield accuracy — it does not check whether the yield rate is accurate or generated from reliable strategies. It cannot validate tranche risk assessment — the tool cannot confirm that the risk assessment for the senior and junior tranches is correct. It cannot detect vault risks — the tool cannot identify vulnerabilities in the vault's strategy, smart contract risks, or external dependencies. It cannot ensure senior protection — the tool relies on the contract's implementation and does not independently verify that the senior tranche is fully protected. The tool also cannot guarantee that senior tranche is fully protected — while the senior tranche has priority, there is no guarantee of full protection under all circumstances.

PLEASE NOTE

This tool works exclusively with EVM-compatible blockchain networks (Ethereum, Polygon, Arbitrum, Optimism, Base, etc.). It requires the tranche vault contract to implement the 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. Senior tranche deposits offer lower risk but also lower potential returns compared to junior tranches. Understanding the trade-off between risk and return is important when choosing which tranche to deposit into. Always review the vault's strategy, lock period, and fee structure before depositing. Consider your risk tolerance and investment goals when choosing the senior tranche.