Sara uses the Vault CLI for administrative tasks on the production cluster.

Comprehensive and Detailed In-Depth Explanation:

To view policies attached to her token, Sara needs vault token lookup. This command displays token details, including the policies field (e.g., [default, training]), revealing what permissions she has. vault operator diagnose troubleshoots server issues, not tokens. vault policy list lists all policies in Vault, not those tied to a specific token. vault token capabilities checks capabilities on a path, not policy attachment. The token lookup command, per Vault docs, is the correct tool for inspecting token metadata like policies.