What is PromptDrifter?

PromptDrifter is a command-line tool to test and evaluate Large Language Model (LLM) prompts across different models and providers. It helps catch "prompt drift" when LLM responses change unexpectedly.

By comparing LLM outputs against version-controlled expected responses or predefined patterns, PromptDrifter helps ensure your LLM-powered features behave predictably.

Features

• Automated Guardrails: Integrates LLM response validation directly into your development and CI/CD workflows.
• Early Drift Detection: Catches deviations by comparing LLM outputs against version-controlled expected responses or predefined patterns (like regex).
• Model Agnostic Design: Through a flexible adapter system, PromptDrifter can interact with various LLM providers and models (e.g., OpenAI, Ollama, Gemini).
• Declarative Test Suites: Define your prompt tests in easy-to-understand YAML files, making them simple to create, manage, and version.
• CLI Interface: Simple command-line tool for easy integration and use.
• Response Caching: Speeds up test runs by caching responses from LLMs.

Getting Started

To start using PromptDrifter:

1. Install the package:

   pip install promptdrifter
   

2. Initialize a sample configuration:

   promptdrifter init
   

This will create a promptdrifter.yaml file in your current directory.

3. Edit promptdrifter.yaml to define your prompts and expected outcomes.

4. Run your tests:

   promptdrifter run promptdrifter.yaml
   

License

PromptDrifter is licensed under the MIT License.