Loading...
Loading...
Found 128 Skills
Current Ethereum development tools, frameworks, libraries, RPCs, and block explorers. What actually works today for building on Ethereum. Includes tool discovery for AI agents — MCPs, abi.ninja, Foundry, Scaffold-ETH 2, Hardhat, and more. Use when setting up a dev environment, choosing tools, or when an agent needs to discover what's available.
Current Ethereum gas prices, transaction costs, and the real economics of building on Ethereum today. Use when estimating costs, choosing between mainnet and L2s, or when a user asks about Ethereum being expensive. Counters the
Wagmi — React/Vue/Solid hooks and Core for Ethereum; config, connectors, read/write contracts, TanStack Query.
Build applications with the Yo Protocol SDK (`@yo-protocol/core`) — an ERC-4626 yield vault protocol supporting Ethereum (1), Base (8453), and Arbitrum (42161). Use when writing code that interacts with Yo Protocol vaults: preparing deposit/redeem transactions, checking positions, querying vault snapshots/yield/TVL, or claiming Merkl rewards. Triggers on mentions of Yo Protocol, yoETH, yoUSD, yoBTC, yoEUR, yoGOLD, yoUSDT, yo-protocol/core, YoClient, createYoClient, PreparedTransaction, or ERC-4626 vault interactions via the Yo gateway.
Buy or sell XAUT (Tether Gold) on Ethereum using Foundry cast. Supports market orders (Uniswap V3) and limit orders (UniswapX). Triggers: buy XAUT, XAUT trade, swap USDT for XAUT, sell XAUT, swap XAUT for USDT, limit order, limit buy XAUT, limit sell XAUT, check limit order, cancel limit order, XAUT when.
Verified contract addresses for major Ethereum protocols across mainnet and L2s. Use this instead of guessing or hallucinating addresses. Includes Uniswap, Aave, Compound, Aerodrome, GMX, Pendle, Velodrome, Camelot, SyncSwap, Lido, Rocket Pool, 1inch, Permit2, MakerDAO/sDAI, EigenLayer, Across, Chainlink CCIP, Yearn V3, USDC, USDT, DAI, ENS, Safe, Chainlink, and more. Always verify addresses against a block explorer before sending transactions.
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.
Stake ETH with Lido liquid staking protocol to receive stETH, manage withdrawals, and track staking rewards. Supports staking, balance queries, withdrawal requests, withdrawal status, and claiming finalized withdrawals on Ethereum mainnet.
Send USDC to an Ethereum address or ENS name. Use when you or the user want to send money, pay someone, transfer USDC, tip, donate, or send funds to a wallet address or .eth name. Covers phrases like "send $5 to", "pay 0x...", or "transfer to vitalik.eth".
Ethereum development knowledge for AI agents — from idea to deployed dApp. Fetch real-time docs on gas costs, Solidity patterns, Scaffold-ETH 2, Layer 2s, DeFi composability, security, testing, and production deployment. Use when: (1) building any Ethereum or EVM dApp, (2) writing or reviewing Solidity contracts, (3) deploying to mainnet or L2s, (4) the user asks about gas, tokens, wallets, or smart contracts, (5) any web3/blockchain/onchain development task. NOT for: trading, price checking, or portfolio management — use a trading skill for those.
Foundry is a Rust-based toolkit for developing, testing, and deploying Ethereum smart contracts using Solidity.
Register AI agents on Ethereum mainnet using ERC-8004 (Trustless Agents). Use when the user wants to register their agent identity on-chain, create an agent profile, claim an agent NFT, set up agent reputation, or make their agent discoverable. Handles bridging ETH to mainnet, IPFS upload, and on-chain registration.