Every coding agent has the same problem. Each session starts from amnesia. It forgets what it was doing, drifts off scope, and calls the work done when it simply got tired.

The fix is not a better prompt. The fix is a harness.

A harness is a small set of files inside your project that tells the agent how to start, what done actually means, and where the last session left off.

It has five parts. Instructions, so the agent starts the same way every time. State, so it remembers the work. Verification, a gate that fails when the code is broken. Scope, so nothing stays half finished. And lifecycle, a handoff note so the next session picks up cleanly.

Harness Creator is a skill that builds these for you. Then it audits your project with a one hundred point score and shows you the weakest part.

One rule matters most. The verification gate is the product. If it never fails, the harness is decoration.

Install it with one command on Keys Hub. Point it at a real project. And make your agents accountable.
