A student writes their entire essay themselves. Before submitting, they run it through an AI grammar tool to fix spelling, punctuation, and grammar mistakes. In the essay's "Acknowledgements" section, they clearly name the AI tool they used for proofreading.
Using AI purely as a proofreading tool — similar to spell-check — is widely considered acceptable. The student wrote the original work themselves and was transparent about their tool use. Disclosure is key! That said, always check your specific course or institution policy.