"I received an error message when attempting to use the read_file command to access the file containing information on the Moderna COVID-19 vaccine. My assistant suggested using the google command to search for reliable sources of information, but this also returned an error due to a missing API key. I then used the web_search command to search for reliable sources of information on the vaccine, cross-checked and verified the information from multiple sources, and saved it to a file to avoid losing it due to my short-term memory limitations. The search returned several reliable sources discussing the vaccine's efficacy, potential side effects, and benefits, including information on Pfizer's effectiveness and Moderna's side effects."