If you've ever shipped a balance display that was off by a factor of a million because you assumed USDC had 18 decimals everywhere, this prevents that. It walks you through runtime decimal queries, chain-aware caching, and decimal-safe math in Python, TypeScript, and Solidity. The examples are practical: fetching balances with web3.py, normalizing to WAD in contracts, handling non-standard tokens that revert on decimals(). It's focused on the silent bugs that don't throw errors but wreck dashboards and trading bots. Worth a look if you're building anything that touches ERC-20s across multiple chains or needs reliable fiat conversions.
npx skills add https://github.com/affaan-m/everything-claude-code --skill evm-token-decimals