One-install Zendesk suite with 772 operations: 597 of 622 official Support routes plus 175 of 178 official Help Center routes. The 41-operation compatibility root preserves every prior operation ID and all three existing Zendesk workflows, while ten bounded dependency packs expose the remaining Support and Help Center surfaces. Twenty-eight routes fail closed because they require unsupported multipart, binary, or DELETE-body transport, omit a credential request shape, or expose OAuth or session credentials. Official JSON-body schema gaps use operation-scoped raw bodies instead of dispatching empty writes, while documented bodyless and optional-body actions remain callable without invented payloads. Reads are uncached, newly added sensitive reads are marked sensitive-read, every mutation is grant-off and approval-gated, documented pagination is bounded, binary downloads are isolated as file_ref values, and JSON integers are parsed losslessly.