The agent sent Docker's working set (usage less inactive_file), which still counts recently used file cache. A file-heavy container with no limit read 191 GB while its processes held 2.2 GB, and the host's own figure, which already leaves cache out, disagreed with it. Agent 1.23.0 sends mem_used_bytes / mem_used_pct (anon + shmem, so Postgres's shared buffers count; v1: rss + shmem) and mem_cache_bytes apart. The new names keep the two meanings apart in history and in learned normals: docker_013 renames the columns, clears the old values and adds mem_cache_bytes. The Docker page, swarm by-node sums, Busiest Containers, container detail, normals and the MCP tools all read the new figure. File cache is shown only on the container's page and in get_container. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>