MetaMask/core

This monorepo is a collection of packages used across multiple MetaMask clients

Latest release v1398.0.0 — 1398.0.0 · 5 Nov 2026

2 files for Codex, OpenCode and Claude Code: core AGENTS.md, core CLAUDE.md — 3,122 tokens loaded in every session.

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422Stars on the repository

2Files it configures its agents with

3,122Tokens loaded in every session

3Agents configured

Instructions

core AGENTS.md AGENTS.md A 3,107 tok
core CLAUDE.md CLAUDE.md A 15 tok

These files are MetaMask/core's own configuration — they tell Codex, OpenCode and Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.