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constitutional-ai

Category: ml-evaluation-and-safety · License: MIT · Version: 1.0.0 Tags: Safety Alignment, Constitutional AI, RLAIF, Self-Critique, Harmlessness, Anthropic, AI Safety, RL From AI Feedback, Claude

When to use it

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.

Example requests

Ask your agent in plain language, for example:
  • “How do I get a model to critique and revise its own harmful answers?”
  • “I’m training a 7B Llama model with TRL and want to cut harmful outputs without paying for human red-team labels. I’ve got a 16-principle constitution in constitution.yaml and red-team prompts in redteam.jsonl. Set up the pipeline, including the preference stage, and tell me what GPUs I need. My AI-generated preference labels look noisy between runs.”
  • “We want our assistant to follow a written set of ethical principles, and to stop giving evasive non-answers to borderline questions, with an AI model rather than crowd workers providing the training signal. What approach should we use and how do we tune it?”

Install

In Claude Code you can also add the marketplace with /plugin marketplace add KalarisLabs/research-agent-skills and install the whole ml-evaluation-and-safety category with /plugin install ml-evaluation-and-safety@research-agent-skills.

Full playbook

Read SKILL.md for the complete workflow, references and any scripts. The agent installer copies the full skill folder.
Last modified on October 19, 2026