Use when reading ERC-20 balances, pricing tokens, or hashing Ethereum data in JS/TS/Python/Solidity. Covers per-chain token decimal drift with runtime decimals() lookup and WAD normalization, and the Node sha3-256 vs Keccak-256 mismatch with correct ethers/viem/web3 APIs.
How to install evm-gotchas?
mixard/fable-pack/evm-gotchas
$npx -y skills add mixard/fable-pack --skill evm-gotchasInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/mixard/fable-pack" --skill "mixard/fable-pack/evm-gotchas"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/mixard/fable-pack" that are relevant to the current task. Run `npx skills add "https://github.com/mixard/fable-pack"` and select the relevant skills, then follow their instructions.
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