SAGE: A tool for constraining the impacts of stellar activity on transmission spectroscopy H. Chakraborty, M. Lendl, B. Akinsanmi, D. J. M. Petit dit de la Roche and A. Deline A&A, 685 (2024) A173 Published online: 23 May 2024 DOI: 10.1051/0004-6361/202347727