The Agent Skills Directory

[EXTERNAL_DOWNLOADS]: The skill requires the cclib Python package to perform its core parsing tasks. This is a legitimate, well-known scientific library hosted on standard repositories like PyPI and GitHub.
[COMMAND_EXECUTION]: The test file tests/test_cclib_skill.py uses subprocess.run to execute the parsing script with the current Python interpreter. This is a standard unit testing pattern and does not utilize a shell or process untrusted user input.
[SAFE]: The skill script scripts/parse_output.py reads user-specified local files (output_path) to extract chemical data. This file access is limited to the parsing logic of the library and is consistent with the skill's stated purpose.

cclib