Overview
constitutional-ai is an open-source data skill for Claude Code and compatible agents, published by Orchestra-Research. Its author describes it as: “Anthropic's method for training harmless AI through self-improvement. Two-phase approach - supervised learning with self-critique/revision, then RLAIF (RL from AI Feedback). Use for safety alignment, reducing harmful…”. The project has 12k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add Orchestra-Research/AI-Research-SKILLs`.
What constitutional-ai does
Constitutional AI (CAI) trains models to be harmless through self-critique and AI feedback, without requiring human labels for harmful outputs.
What’s inside
The SKILL.md for constitutional-ai is organised into these sections:
- Quick start
- Common workflows
- Workflow 1: Supervised learning phase (self-critique + revision)
- Workflow 2: RL phase (RLAIF - RL from AI Feedback)
- Workflow 3: Chain-of-thought critique
- When to use vs alternatives
- Common issues
- Advanced topics
- Hardware requirements
- Resources
Installation
Add constitutional-ai to your agent with:
/plugin marketplace add Orchestra-Research/AI-Research-SKILLsReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
- Codex — declared in the repository topics
License
constitutional-ai is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in Orchestra-Research/AI-Research-SKILLs, an established project with 11,807 GitHub stars
- Works with Claude Code, Codex
Author
Topics
Frequently asked questions
- What does constitutional-ai do?
- Anthropic's method for training harmless AI through self-improvement. Two-phase approach - supervised learning with self-critique/revision, then RLAIF (RL from AI Feedback). Use for safety alignment, reducing harmful outputs without human labels. Powers Claude's safety system.
- How do I install constitutional-ai?
- Run /plugin marketplace add Orchestra-Research/AI-Research-SKILLs in your agent, then reload your skills. Review the source at https://github.com/Orchestra-Research/AI-Research-SKILLs before installing.
- Is constitutional-ai free to use?
- Yes. constitutional-ai is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does constitutional-ai work with?
- constitutional-ai lists Claude Code and Codex — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does constitutional-ai come from?
- constitutional-ai ships inside Orchestra-Research/AI-Research-SKILLs, a repository that contains 41 catalogued skills in total. The repository's 11,807 GitHub stars apply to that whole collection, not to this skill on its own.
