anthropics

Claude Constitution — Development skill for Claude Code

Development community

The foundational document describing Claude's values and behavior.

How to install Claude Constitution

This entry records only its repository, not the path inside it, so there is no exact command to give. Open anthropics/claude-constitution and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Claude Constitution does

The foundational document describing Claude's values and behavior.

Alternatives in Development

Product Name — Brainstorm 5 memorable product names aligned to brand values 7.8k ★
Claude Skills Project Configuration — This file governs Claude's behavior when working on the claude-skills repository 6.8k ★
Speckit.Constitution 2.3k ★

README

Claude's Constitution

This repository contains Claude's Constitution—the foundational document that describes the values we want Claude to embody and the reasoning behind them. It covers what it means for Claude to be helpful while remaining safe and ethical, and provides guidance for navigating difficult tradeoffs.

We're releasing it to provide transparency into how we guide Claude's development. The current version is from January 2026. We'll update this repository as the constitution evolves and archive prior versions here.

For more context, see our blog post: [Claude's New Constitution](https://www.anthropic.com/news/claude-new-constitution). The constitution can also be read at: [Claude's Constitution](http://anthropic.com/constitution).

Released under [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/).