Google Cloud gcloud CLI AI Skill Guide (Claude)

Overview & Engine Architecture

gcloud authenticates a principal, scopes work to a project (and often region/zone), and drives Cloud APIs for Compute, GKE, Cloud Run, GCS, Artifact Registry, IAM, and logging. CLI auth (gcloud auth login) is distinct from Application Default Credentials (gcloud auth application-default login)—SDKs use ADC; the CLI uses its own login. Agents treat active configuration + project ID as first-class context: most “wrong resource” bugs are wrong config, not wrong YAML.