RCSB Protein Data Bank skill Prerequisites 1. : Read the skill and follow its Setup instructions to ensure is installed and on PATH. 2. User Notification : If .licenses/pdb database LICENSE.txt does not already exist in the workspace root directory then (1) prominently notify the user to check the terms at https://www.rcsb.org/pages/usage-policy, then (2) create the file recording the notification text and timestamp. Core Rules - Always prefer to use the provided scripts . Only as a last resort use , , raw HTTP requests, or any other method to access PDB APIs. The scripts automatically enforc…