Skills

nodejs-keccak256

Prevent Ethereum hashing bugs in JavaScript and TypeScript. Node's sha3-256 is NIST SHA3, not Ethereum Keccak-256, and silently breaks selectors, signatures, storage slots, and address derivation.

Score: Unranked
Evidence: No signals yet
Last commit: Not known
Listed: 26 May 2026

Install

Harness

armory install nodejs-keccak256 --cli claude

writes the skill into.claude/skills/nodejs-keccak256/SKILL.mdListed as compatible

Configuration

# fetches the source and writes it to:
.claude/skills/nodejs-keccak256/SKILL.md

Needs the armory CLI · not on npm yet, build it from cli/ in the repository

What it is

Prevent Ethereum hashing bugs in JavaScript and TypeScript. Node's sha3-256 is NIST SHA3, not Ethereum Keccak-256, and silently breaks selectors, signatures, storage slots, and address derivation.

When to use it

Prevent Ethereum hashing bugs in JavaScript and TypeScript. Node's sha3-256 is NIST SHA3, not Ethereum Keccak-256, and silently breaks selectors, signatures, storage slots, and address derivation.

How to install / invoke

Vendored from affaan-m/ecc (skills). See the source: https://github.com/affaan-m/ecc/blob/main/skills/nodejs-keccak256/SKILL.md

Notes

Ingested from the affaan-m/ecc harness library (MIT).