diff --git a/docs/2-handbook/swarm/services.md b/docs/2-handbook/swarm/services.md
index 1ddd6179..c8b54e62 100644
--- a/docs/2-handbook/swarm/services.md
+++ b/docs/2-handbook/swarm/services.md
@@ -212,6 +212,7 @@ kept.
 - `review-classifier`: review requests by outcome, the verdict mix, results per check, retried asks, and run duration p50 and p95.
 - `forge`: the forge, in three tabs. **content** has what the forge holds (repositories, users, issues, releases, discussion volume and the issues by label). **runtime** has the forge process's CPU, memory, goroutines and descriptors. **CI runs** has Actions run time and queue wait per repo and workflow, with a per-PR table; the Repo and Workflow filters apply to that tab.
 - `gateway`: the gateway nginx on each hive's host: requests per second, connections by state, and accepted against handled connections.
+- `host`: the machine under each hive, from the collector's host metrics: CPU by state, load, memory, swap and paging, disk and network throughput, filesystem usage, the Nix store's share and the busiest agent containers. Filter by hive and host.
 - `collector`: what the hive and swarm OTEL collectors accept, refuse, export and queue, with queue depth against capacity.
 - `logstore`, `metricstore`: health of the log store and the metrics store.
 - `grafana`: Grafana itself. Dashboards and data sources, alert instances firing, requests by status and their latency, alert rule evaluations and failures, sign-ins, database connections, memory and goroutines.
diff --git a/nix/host-modules/swarm-grafana.nix b/nix/host-modules/swarm-grafana.nix
index 06a6601a..67677dbf 100644
--- a/nix/host-modules/swarm-grafana.nix
+++ b/nix/host-modules/swarm-grafana.nix
@@ -282,6 +282,7 @@ let
         "forge.json"
         "gateway.json"
         "grafana.json"
+        "host.json"
         "logstore.json"
         "matrix.json"
         "metricstore.json"
diff --git a/nix/host-modules/swarm-grafana/dashboards/host.json b/nix/host-modules/swarm-grafana/dashboards/host.json
new file mode 100644
index 00000000..35e86423
--- /dev/null
+++ b/nix/host-modules/swarm-grafana/dashboards/host.json
@@ -0,0 +1,1003 @@
+{
+  "uid": "hyperhive-host",
+  "title": "hyperhive · host",
+  "description": "CPU, memory, swap, disk, network and filesystem of each hive host.",
+  "tags": ["hyperhive", "host", "system"],
+  "timezone": "utc",
+  "schemaVersion": 39,
+  "version": 1,
+  "editable": true,
+  "refresh": "1m",
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "templating": {
+    "list": [
+      {
+        "name": "hive",
+        "label": "Hive",
+        "type": "query",
+        "datasource": {
+          "type": "prometheus",
+          "uid": "@datasourceUid@"
+        },
+        "query": "label_values({__name__=\"system.memory.usage\"}, hive)",
+        "refresh": 2,
+        "includeAll": true,
+        "allValue": ".*",
+        "multi": true,
+        "current": {
+          "text": "All",
+          "value": "$__all"
+        },
+        "sort": 1
+      },
+      {
+        "name": "host",
+        "label": "Host",
+        "type": "query",
+        "datasource": {
+          "type": "prometheus",
+          "uid": "@datasourceUid@"
+        },
+        "query": "label_values({__name__=\"system.memory.usage\", hive=~\"$hive\"}, \"host.name\")",
+        "refresh": 2,
+        "includeAll": true,
+        "allValue": ".*",
+        "multi": true,
+        "current": {
+          "text": "All",
+          "value": "$__all"
+        },
+        "sort": 1
+      }
+    ]
+  },
+  "panels": [
+    {
+      "id": 1,
+      "type": "timeseries",
+      "title": "CPU utilisation by state",
+      "description": "Share of CPU time per state, all cores of the selected hosts.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 0
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (state) (rate({__name__=\"system.cpu.time\", hive=~\"$hive\", \"host.name\"=~\"$host\"}[5m])) / scalar(sum(rate({__name__=\"system.cpu.time\", hive=~\"$hive\", \"host.name\"=~\"$host\"}[5m])))",
+          "legendFormat": "{{state}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "percentunit",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "max": 1,
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 30,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0,
+            "stacking": {
+              "mode": "normal",
+              "group": "A"
+            }
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 2,
+      "type": "timeseries",
+      "title": "Load average",
+      "description": "Runnable plus uninterruptible tasks averaged over 1, 5 and 15 minutes.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 0
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "max by (\"host.name\") ({__name__=\"system.cpu.load_average.1m\", hive=~\"$hive\", \"host.name\"=~\"$host\"})",
+          "legendFormat": "{{host.name}} 1m"
+        },
+        {
+          "refId": "B",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "max by (\"host.name\") ({__name__=\"system.cpu.load_average.5m\", hive=~\"$hive\", \"host.name\"=~\"$host\"})",
+          "legendFormat": "{{host.name}} 5m"
+        },
+        {
+          "refId": "C",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "max by (\"host.name\") ({__name__=\"system.cpu.load_average.15m\", hive=~\"$hive\", \"host.name\"=~\"$host\"})",
+          "legendFormat": "{{host.name}} 15m"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "short",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 3,
+      "type": "timeseries",
+      "title": "Memory",
+      "description": "Used, cached and free memory.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 8
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (state) ({__name__=\"system.memory.usage\", hive=~\"$hive\", \"host.name\"=~\"$host\", state=~\"used|cached|free\"})",
+          "legendFormat": "{{state}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "bytes",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 30,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0,
+            "stacking": {
+              "mode": "normal",
+              "group": "A"
+            }
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 4,
+      "type": "timeseries",
+      "title": "Swap used",
+      "description": "Swap in use, per swap device.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 6,
+        "x": 12,
+        "y": 8
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (device) ({__name__=\"system.paging.usage\", hive=~\"$hive\", \"host.name\"=~\"$host\", state=\"used\"})",
+          "legendFormat": "{{device}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "bytes",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 5,
+      "type": "timeseries",
+      "title": "Paging in and out",
+      "description": "Pages moved between memory and swap or disk per second.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 6,
+        "x": 18,
+        "y": 8
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (direction, type) (rate({__name__=\"system.paging.operations\", hive=~\"$hive\", \"host.name\"=~\"$host\"}[5m]))",
+          "legendFormat": "{{direction}} {{type}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "ops",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 6,
+      "type": "timeseries",
+      "title": "Disk throughput",
+      "description": "Bytes read and written per second, per device.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 16
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (device, direction) (rate({__name__=\"system.disk.io\", hive=~\"$hive\", \"host.name\"=~\"$host\"}[5m]))",
+          "legendFormat": "{{device}} {{direction}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "Bps",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 7,
+      "type": "timeseries",
+      "title": "Disk operations",
+      "description": "Read and write operations per second, per device.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 16
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (device, direction) (rate({__name__=\"system.disk.operations\", hive=~\"$hive\", \"host.name\"=~\"$host\"}[5m]))",
+          "legendFormat": "{{device}} {{direction}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "iops",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 8,
+      "type": "timeseries",
+      "title": "Network throughput",
+      "description": "Bytes received and transmitted per second, per interface.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 24
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (device, direction) (rate({__name__=\"system.network.io\", hive=~\"$hive\", \"host.name\"=~\"$host\"}[5m]))",
+          "legendFormat": "{{device}} {{direction}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "Bps",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 9,
+      "type": "timeseries",
+      "title": "Network errors",
+      "description": "Packet errors per second, per interface.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 24
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (device, direction) (rate({__name__=\"system.network.errors\", hive=~\"$hive\", \"host.name\"=~\"$host\"}[5m]))",
+          "legendFormat": "{{device}} {{direction}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "pps",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 10,
+      "type": "timeseries",
+      "title": "Filesystem usage",
+      "description": "Used share of each mounted filesystem.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 32
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (mountpoint) ({__name__=\"system.filesystem.usage\", hive=~\"$hive\", \"host.name\"=~\"$host\", state=\"used\"}) / sum by (mountpoint) ({__name__=\"system.filesystem.usage\", hive=~\"$hive\", \"host.name\"=~\"$host\", state=~\"used|free\"})",
+          "legendFormat": "{{mountpoint}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "percentunit",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "max": 1,
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 11,
+      "type": "stat",
+      "title": "Nix store utilisation",
+      "description": "Used share of the filesystem holding the Nix store.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 4,
+        "x": 12,
+        "y": 32
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "max by (\"host.name\") ({__name__=\"hyperhive.hive.nix_store.utilization\", hive=~\"$hive\", \"host.name\"=~\"$host\"})",
+          "legendFormat": "{{host.name}}",
+          "instant": true
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "percentunit",
+          "color": {
+            "mode": "thresholds"
+          },
+          "min": 0,
+          "max": 1,
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "orange",
+                "value": 0.8
+              },
+              {
+                "color": "red",
+                "value": 0.9
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "graphMode": "none",
+        "colorMode": "value",
+        "textMode": "value",
+        "justifyMode": "auto",
+        "reduceOptions": {
+          "calcs": ["lastNotNull"],
+          "fields": "",
+          "values": false
+        }
+      }
+    },
+    {
+      "id": 12,
+      "type": "stat",
+      "title": "Uptime",
+      "description": "Time since the host booted.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 4,
+        "x": 16,
+        "y": 32
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "max by (\"host.name\") ({__name__=\"system.uptime\", hive=~\"$hive\", \"host.name\"=~\"$host\"})",
+          "legendFormat": "{{host.name}}",
+          "instant": true
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "s",
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "graphMode": "none",
+        "colorMode": "value",
+        "textMode": "value",
+        "justifyMode": "auto",
+        "reduceOptions": {
+          "calcs": ["lastNotNull"],
+          "fields": "",
+          "values": false
+        }
+      }
+    },
+    {
+      "id": 13,
+      "type": "stat",
+      "title": "Processes",
+      "description": "Processes on the host in any state.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 4,
+        "x": 20,
+        "y": 32
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (\"host.name\") ({__name__=\"system.processes.count\", hive=~\"$hive\", \"host.name\"=~\"$host\"})",
+          "legendFormat": "{{host.name}}",
+          "instant": true
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "short",
+          "color": {
+            "mode": "thresholds"
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "graphMode": "none",
+        "colorMode": "value",
+        "textMode": "value",
+        "justifyMode": "auto",
+        "reduceOptions": {
+          "calcs": ["lastNotNull"],
+          "fields": "",
+          "values": false
+        }
+      }
+    },
+    {
+      "id": 14,
+      "type": "timeseries",
+      "title": "Processes by status",
+      "description": "Process count per status.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 8,
+        "x": 16,
+        "y": 36
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "sum by (status) ({__name__=\"system.processes.count\", hive=~\"$hive\", \"host.name\"=~\"$host\"})",
+          "legendFormat": "{{status}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "short",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 30,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0,
+            "stacking": {
+              "mode": "normal",
+              "group": "A"
+            }
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 15,
+      "type": "timeseries",
+      "title": "Top 10 containers by memory",
+      "description": "Agent containers using the most memory.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 40
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "topk(10, sum by (agent) ({__name__=\"container.memory.usage\", hive=~\"$hive\", \"host.name\"=~\"$host\"}))",
+          "legendFormat": "{{agent}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "bytes",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    },
+    {
+      "id": 16,
+      "type": "timeseries",
+      "title": "Top 10 containers by CPU",
+      "description": "Agent containers using the most CPU, in cores.",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "@datasourceUid@"
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 40
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "datasource": {
+            "type": "prometheus",
+            "uid": "@datasourceUid@"
+          },
+          "expr": "topk(10, sum by (agent) (rate({__name__=\"container.cpu.time\", hive=~\"$hive\", \"host.name\"=~\"$host\"}[5m])))",
+          "legendFormat": "{{agent}}"
+        }
+      ],
+      "fieldConfig": {
+        "defaults": {
+          "unit": "none",
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "drawStyle": "line",
+            "lineWidth": 1,
+            "fillOpacity": 10,
+            "showPoints": "never",
+            "spanNulls": false,
+            "axisSoftMin": 0
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true,
+          "calcs": []
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      }
+    }
+  ]
+}
diff --git a/nix/module-eval/grafana.nix b/nix/module-eval/grafana.nix
index 7aed754e..1dab6b43 100644
--- a/nix/module-eval/grafana.nix
+++ b/nix/module-eval/grafana.nix
@@ -624,6 +624,23 @@ let
           ]
         ) tables;
     }
+    {
+      # The host board ships, and every query filters on both template
+      # variables: a panel missing one shows another hive's or host's numbers
+      # under this selection.
+      name = "the host dashboard ships, and every panel query filters on hive and host";
+      ok =
+        let
+          provider = lib.head grafanaWithAuthelia.containers.swarm-grafana.config.services.grafana.provision.dashboards.settings.providers;
+          shipped = lib.attrNames provider.options.path.entries;
+          board = builtins.fromJSON (builtins.readFile ../host-modules/swarm-grafana/dashboards/host.json);
+          exprs = lib.concatMap (p: map (t: t.expr) p.targets) board.panels;
+        in
+        lib.elem "host.json" shipped
+        && lib.length exprs > 0
+        && lib.all (e: lib.hasInfix "hive=~\"$hive\"" e && lib.hasInfix "\"host.name\"=~\"$host\"" e) exprs
+        && lib.any (e: lib.hasInfix "system.cpu.time" e) exprs;
+    }
     {
       # The egress board ships, and its queries read the two squid log lines as
       # squid writes them: the would_deny line's field layout, and the default