Prompt Versioning and Release Gates for LLM Apps

Description and use

<p>The fastest way I know to break a working LLM feature is to "just tweak the prompt" on a Friday. Nothing crashes. The output simply gets a little worse, and nobody notices until a customer does.</p> <p>So I've stopped treating prompts as config strings. They're code. They get versions, tests, and a gate in CI that can say no.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Fo37lptxmrxswbnpl8hpl.png" class="article-body-image-wrapper"><img src="h

Problem

<p>The fastest way I know to break a working LLM feature is to "just tweak the prompt" on a Friday. Nothing crashes. The output simply gets a little worse, and nobody notices until a customer does.</p> <p>So I've stopped treating prompts as config strings. They're code. They get versions, tests, and a gate in CI that can say no.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Fo37lptxmrxswbnpl8hpl.png" class="article-body-image-wrapper"><img src="h

Outcome

<p>The fastest way I know to break a working LLM feature is to "just tweak the prompt" on a Friday. Nothing crashes. The output simply gets a little worse, and nobody notices until a customer does.</p> <p>So I've stopped treating prompts as config strings. They're code. They get versions, tests, and a gate in CI that can say no.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Fo37lptxmrxswbnpl8hpl.png" class="article-body-image-wrapper"><img src="h

Evidence

Prompt Versioning and Release Gates for LLM Apps

Source