# Why self-editing is not progress

> Improvement requires a fixed task, valid evidence, one controlled change and a policy outside the Optimizer.

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LLMS index: [llms.txt](/harbor-self-evolving/llms.txt)

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An Agent can rewrite its prompt, tools or Evaluator and still become worse. “It changed” is not “it improved.”

A trustworthy loop fixes the business cases, execution identity and scoring contract before the change. It separates the Optimizer that proposes a change from the Gate that judges promotion.

## You do {#you-do}

Name the business failure and the owner of the final deployment decision.

## Harbor records {#harbor-records}

The identities and evidence chain needed to revisit the claim.

## This does not prove {#does-not-prove}

A quick diagnostic or rewritten Candidate does not prove promotion quality.