Harness Engineering Playbook

Use this skill to operationalize the practices from OpenAI's Harness Engineering guide in a repo that agents can run against repeatedly and safely.

What To Load

• Use references/openai-harness-practices.md for the full practice-to-artifact mapping.
• Use references/rollout-checklist.md for phased adoption in active repos.
• Use assets/templates/ when creating or updating harness files.

Inputs

• Target repository path.
• Existing command surface (make, npm, cargo, pytest, etc.).
• Existing CI workflows and branch protections.

Workflow