A reference for engineering leaders who already run agents in production. It defines the four components of a self-improving harness, the instrumentation and evaluation discipline that keeps improvement honest, and the promotion gate that stops a system from getting worse while it gets faster.

In this white paper, you'll discover:

• The Harness Is the Product: It is worth being precise about the term.
• What Self-Improvement Actually Means: Self-improvement is a specific mechanism, not a mood.
• The Four Components of a Self-Improving Harness: A self-improving harness is not one program.
• Instrumentation: Trajectories Worth Learning From: Everything downstream depends on whether the trajectory you stored is specific enough to reason about a month later.
• Evaluation: A Score That Does Not Drift: An evaluation set is useful only if the same harness revision scores the same way next month as it did this month.

Download the full white paper below for the complete analysis, architecture detail, and implementation guidance.