Databases

Cloud SQL

• list_cloudsql_instances(project_id) — the Cloud SQL instances in a project, each with its database version, state, and region.

Cloud SQL has no typed Google client library, so this tool goes through the SQL Admin discovery API under your own identity — the same per-user boundary as every other tool.

It is read-only by design. Instance creation, deletion, and configuration changes have a large blast radius and belong behind dedicated, resource-level guardrails rather than a generic approval button — so they’re deliberately absent, in the same spirit as the missing IAM and billing writes. See Guardrails.

Cloud Spanner

• list_spanner_instances(project_id) — the Spanner instances in a project, each with its config, capacity (nodes or processing units), and state.
• list_spanner_databases(instance, project_id) — the databases in an instance, with their state.

Memorystore (Redis)

• list_redis_instances(project_id) — the Memorystore for Redis instances across every region, each with its tier, memory size, and state.

Spanner and Memorystore are read-only here for the same reason as Cloud SQL — provisioning and scaling a managed database is too consequential for a generic Approve/Deny.

Next: Observability.