GCP Idle Resources Skill

Detect unused and idle GCP resources with anti-hallucination guardrails and cost waste estimation.

Relationship to other GCP skills:

• gcp-idle-resources/ -> "What is wasting money" (idle detection rules, cost estimation, protection label checks)
• gcp/ -> "How to execute" (parallel patterns, filtering, monitoring aligners, billing/pricing scripts)
• gcp-rightsizing/ -> "What is oversized" (utilization thresholds, downsize recommendations)

CRITICAL: Idle Resource Detection Rules (Anti-Hallucination)

These rules are MANDATORY when detecting idle resources. Violating them produces recommendations that can cause data loss or outages.

Rule 1: Unattached Persistent Disk != Always Deletable

Detached PDs (no users field) may be intentional (warm standby, manual backups, data archives). Report but NEVER auto-recommend deletion without user context.