What to check when a prompt changes

Compare the two texts you already have

A prompt change is easy to skim and easy to get wrong. Paste the last version as A and the new version as B. The studio shows what behavior changed.

Look for a dropped guardrail

The useful question is not "did the wording move." It is "did B lose a constraint that A had" — a citation rule, a refund limit, an approval step. That flag is the regression check.

You put the old text back

If B dropped something you still want, copy A back into your agent yourself. AgentPrompt does not push a rollback into your runtime, and it does not keep a remote history of every prompt you have ever shipped.

What the studio does not do

It does not run a hidden evaluation set, score quality, or tell you the agent is safe. Recent studio runs can stay in this browser. That is the record.

FAQ

What should I paste?

Prompt version A and prompt version B. They can be system text or task text.

What does the check flag?

A guardrail or instruction present in A and missing in B.

Does the app restore the old prompt?

No. The report tells you what B dropped. You copy the older text back yourself.

Does it certify the agent?

No. It is a reading of two pasted texts, not a certificate.

## Disclaimer

AgentPrompt compares two pasted prompt versions and flags a guardrail present in A and missing in B. You copy any older text back yourself. The note is decision-support, not a certificate, and this product does not map a statute.

Paste version A and version B in the studio — open AgentPrompt.