Smart Prompt Engine is a free Chrome add-on that enhances the quality of prompts for AI tools like ChatGPT, Claude, and Gemini. This tool provides instant feedback on the clarity, completeness, and intent of your prompts, making it easier to achieve better responses. With features such as prompt scoring, one-click rewrites, and missing-info detection, users can significantly improve their input before sending it to AI applications.

The add-on operates seamlessly within supported chat boxes, automatically analyzing text, code, and various data formats as you type or paste prompts. It also includes a Token Saver feature, which is particularly beneficial for managing larger texts and logs. Smart Prompt Engine is lightweight, fast, and requires no account setup, making it an ideal choice for developers, students, and researchers looking to enhance their interaction with AI tools.