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ethskills

Corrects stale LLM knowledge about Ethereum gas costs, L2s, standards, and deployment workflows.

Updated Sep 9, 2026
Search Tags:#smart contracts#solidity#ethereum#defi#web3 development#layer 2#gas costs
One-click install
npx skills add https://github.com/m-faran/genie-markets --skill ethskills-m-faran
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ethskills
Source: https://github.com/m-faran/genie-markets/tree/main/.agent/skills/ethskills
Command: npx skills add https://github.com/m-faran/genie-markets --skill ethskills-m-faran

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? AI agents rely on outdated training data about Ethereum — quoting 10-30 gwei gas prices, hallucinating contract addresses, and missing shipped upgrades like Pectra, Fusaka, EIP-7702, and ERC-8004. This Skill supplies verified, current Ethereum knowledge so agents can build, audit, and deploy onchain applications correctly. ## Core Features & Use Cases - Topic-based knowledge packs: Standalone SKILL.md files covering gas costs, Layer 2s, wallets, security, testing, indexing, frontend UX, DeFi building blocks, and verified contract addresses. - End-to-end shipping guidance: The ship skill routes agents through architecture planning, chain selection, CROPS review, QA, and production deployment. - Audit and QA workflows: A 500+ item smart contract audit checklist across 19 domains plus a pre-ship QA checklist for reviewer agents. - Use Case: Before writing Solidity for a USDC payment dApp, an agent fetches the security and addresses skills to learn that USDC has 6 decimals, requires SafeERC20, and uses verified onchain contract addresses instead of hallucinated ones. ## Quick Start Read https://ethskills.com/SKILL.md and follow it before writing Solidity or shipping anything onchain.

Frequently Asked Questions about ethskills

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I give my AI agent current Ethereum development knowledge?▼

Point your agent at https://ethskills.com/SKILL.md, which acts as a table of contents routing to topic-specific skill files. Each file corrects verified LLM blind spots about gas costs, L2s, standards, and deployment.

What do LLMs get wrong about Ethereum gas costs?▼

LLMs typically quote 10-30 gwei gas prices from 2021-2023 training data. Post-Fusaka reality is under 1 gwei, making mainnet transfers about $0.004 and swaps about $0.04. Verify current values with cast base-fee.

Does ethskills work with Claude Code, Cursor, and Codex?▼

Yes. Claude Code installs it as a plugin via the marketplace, Cursor uses a rule file pointing to the skill URL, and Codex reads it through an AGENTS.md pointer. Any agent that can fetch URLs can use it.

How are the contract addresses in ethskills verified?▼

All 122+ addresses across 7 networks were verified onchain using cast code and cast call with symbol checks, plus live Chainlink price feed queries. The March 2026 audit found zero incorrect addresses.

What is the difference between the security and audit skills?▼

The security skill teaches defensive coding patterns like SafeERC20, CEI, and oracle safety for contracts you write. The audit skill is a systematic 500+ item checklist across 19 domains for reviewing contracts you did not write.

When should I not rely on ethskills gas numbers?▼

Specific prices drift over time, so if the verification date is over 30 days old, check live values with cast base-fee or a Chainlink feed. The durable insight is the order of magnitude, not exact figures.

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