Cross-Chain Arbitrage

Overview

This skill automates the discovery and execution of cross-chain arbitrage opportunities -- finding price differences for the same token across Uniswap deployments on different chains and profiting from the spread. It handles the entire pipeline: scanning prices across 11 chains, calculating all-in costs, risk assessment, cross-chain execution via ERC-7683, and profit reporting.

Why this is 10x better than doing it manually:

1. Simultaneous multi-chain price scanning: Manually checking ETH prices on Ethereum, Base, Arbitrum, Optimism, Polygon, and 6 other chains takes significant effort. The opportunity-scanner does this across all supported chains in seconds.
2. All-in cost calculation: The most common arbitrage mistake is ignoring costs. This skill itemizes every cost component (source gas, bridge fee, destination gas, slippage on both sides) and only presents opportunities that are profitable after all costs.
3. Time-sensitivity awareness: Arbitrage opportunities are ephemeral -- they can disappear in seconds. The skill warns about this throughout and moves quickly, but honestly flags when an opportunity may have closed by the time the user confirms.
4. Risk-gated execution: Before any capital moves, the risk-assessor evaluates bridge risk, execution risk, and liquidity. A VETO stops the pipeline.
5. Scan-only mode: Not ready to execute? Use scan-only mode to just see what opportunities exist without committing capital.

When to Use

Activate when the user says anything like:

• "Find ETH arbitrage across chains"