Diagnose Cluster Health Triage a non-green Elasticsearch cluster read-only: localize the problem, classify the allocation decider, and report the single most likely cause with remediation. Never mutate cluster state — surface findings and let the operator act. <!-- begin-partial: preamble -- Environment Configuration This skill executes Elasticsearch operations through the CLI. If the CLI is not installed, tell the user what it is needed for. Do not guess credentials, call the HTTP API directly, or attempt other workarounds. This skill references operations in HTTP-shorthand form (e.g., , , ,…