# Eips

> Ethereum Improvement Proposals — process, format, categories, and how to author or look up EIPs.

- Skill: `hairyf/eips` (Agent Skill, multi-file: 11 files)
- Install (CLI): `npx skillmds@latest add hairyf/eips`
- Raw SKILL.md: https://api.skillmd.com/api/skills/hairyf/eips/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: hairyf (https://skillmd.com/u/hairyf)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/hairyf/eips

---


> The skill is based on the Ethereum EIPs repository (ethereum/EIPs), generated at 2026-02-25.

EIPs are design documents that specify features or conventions for Ethereum. This skill covers the **EIP process** (lifecycle, status, editors), **document format** (preamble, sections), **categories**, **validation tooling**, and **best practices** for writing and referencing EIPs. For the content of specific EIPs (e.g. EIP-155, EIP-712), read the source files in sources/eips/EIPS/eip-N.md or eips.ethereum.org.

## Core References

| Topic | Description | Reference |
|-------|-------------|-----------|
| Overview | Repo structure, categories, canonical URLs | [core-overview](references/core-overview.md) |
| Process and Status | Lifecycle, statuses, shepherding, validation | [core-process-and-status](references/core-process-and-status.md) |
| Format and Preamble | Document structure, required headers and sections | [core-format-and-preamble](references/core-format-and-preamble.md) |
| Editors and Validation | EIP Editors (EIP-5069), eipw, CI checks | [core-editors-and-validation](references/core-editors-and-validation.md) |

## Features

| Topic | Description | Reference |
|-------|-------------|-----------|
| Types and Categories | Standards Track, Meta, Informational; Core, Networking, Interface, ERC | [features-categories](references/features-categories.md) |
| ERC / EIP Repo Split | Where ERCs live (ethereum/ercs), impact on this repo | [features-erc-separation](references/features-erc-separation.md) |
| Commonly Referenced EIPs | Short index of EIP-1, 155, 712, 1193 for agents | [features-commonly-referenced-eips](references/features-commonly-referenced-eips.md) |

## Best Practices

| Topic | Description | Reference |
|-------|-------------|-----------|
| Writing EIPs | Style, external links (EIP-5757), tooling, copyright | [best-practices-writing-eips](references/best-practices-writing-eips.md) |
| Referencing EIPs | EIP-N/ERC-N form, links, no backticks; use in docs and code | [best-practices-referencing-eips](references/best-practices-referencing-eips.md) |