The Agent Skills Directory

[COMMAND_EXECUTION]: Uses curl to perform GET requests against the official Materials Project API endpoint (api.materialsproject.org). These operations are restricted to querying materials properties such as band gaps and crystal structures.
[COMMAND_EXECUTION]: Employs python3 -c to execute a short, inline script for parsing JSON results from the API. The script is static, provided within the skill's instructions, and processes data received via standard input (stdin).
[CREDENTIALS_UNSAFE]: Instructions correctly advise the user to store their API key in an environment variable (MP_API_KEY) rather than hardcoding it, which aligns with security best practices for credential management.
[EXTERNAL_DOWNLOADS]: Fetches materials science data from https://api.materialsproject.org/v3, which is a well-known and legitimate scientific resource managed by the Lawrence Berkeley National Laboratory. No executable code or unverified packages are downloaded.

materials-project