Skill-Exchange Credit Redemption Tool

WHAT IT DOES

Skill-Exchange Credit Redemption Tool is a DeFi tool that enables members of a skill-exchange platform to redeem their credits for rewards. It reads the skill exchange contract address, member credit balances, credit redemption rate (exchange rate for rewards), redemption limits, reward token balance, redemption history, account nonce, gas estimates for redemption, and previous redemption records. The tool then guides you through redeeming your credits for rewards, burning the redeemed credits, transferring reward tokens to your wallet, updating your credit balance, and recording the redemption on-chain.

HOW TO USE

Connect your wallet via the built-in connector. Select the network where the skill exchange contract is deployed. Enter the skill exchange contract address, the number of credits you wish to redeem, and the reward token address (use address(0) for native token). The tool will read on-chain data and display a preview including: skill exchange contract, credits to redeem, reward token, your credit balance, redemption rate, redemption limits, reward balance, the amount you will receive, and estimated gas. Review all details carefully. Click "redeem credits" to execute the redemption. The tool will guide you through three steps: verifying credit balance and redemption rate, burning credits and transferring rewards, and recording the redemption.

TECHNICAL MECHANISM

The tool uses ethers.js v5.7.2 to interact with the skill exchange contract. It reads member credit balances using `getCredits(member)` which returns the current balance. The redemption rate is read via `getRedemptionRate()` which returns the exchange rate between credits and rewards. Redemption limits are read via `getMinRedemption()` and `getMaxRedemption()`. Reward token balance is read via `getRewardBalance()` or `balanceOf()` on the reward token contract. Redemption history is scanned using `eth_getLogs` for `CreditsRedeemed` events, with adaptive chunking (halving chunk size on failure) to handle different RPC limits—the tool walks backward from the current block and continues even if some ranges are rejected. The redemption transaction calls `redeemCredits(amount)` on the contract, which burns the credits, transfers the reward tokens to the user, and updates the credit balance. Gas estimates are calculated using `estimateGas` with EIP-1559 fee data from `feeData`. All transactions are built with EIP-1559 fee data, and the tool uses `effectiveGasPrice` from receipts for accurate cost accounting.

WHAT IT CANNOT SEE

This tool cannot verify that skills were actually exchanged—it only records credit balances. It cannot detect if members are misrepresenting their skill contributions. It cannot guarantee that credits accurately reflect skill value. It cannot prevent front-running of redemptions. It cannot validate that the redemption rate is fair. It cannot detect if the skill exchange contract has been modified. It cannot ensure that rewards are available—the reward balance must be sufficient. It cannot verify that redemption terms are enforced off-chain.

PLEASE NOTE

This tool is EVM-only and supports Ethereum, Polygon, BNB Chain, Arbitrum, Optimism, and Avalanche. The redemption transaction is signed by the connected wallet, and the user pays gas fees. Ensure you have sufficient credits and that the reward token balance is adequate for the redemption. The tool does not store or transmit any member or redemption data.