Control Plane

Query Workload Metrics (PromQL)

query_metrics

Read-onlyIdempotent

Run a PromQL query over Control Plane metrics. Default: a range query over the last hour at a 60s step; resolution "instant" for one point, and since, from, to, and step to adjust. Prose shows the first 50 series; the full response is attached as JSON. Gauges (cpu_used, mem_used, replica_count) and the pre-rated egress and requests_per_second are queried bare; counters need rate(), e.g. sum by (workload) (rate(container_restarts[5m])); latency is histogram_quantile(0.95, sum by (le) (request_duration_ms_bucket)). Without query, lists the metrics instead: the documented defaults with a PromQL template each, plus every metric present in the org now (custom, mk8s). mk8s clusters with the metrics add-on label their series cluster_name and node, e.g. sum by (node) (rate(node_cpu_seconds_total{cluster_name="prod",mode!="idle"}[5m])). List first when a name or label is uncertain or a query returns no series. Measure before changing autoscaling.

Input Schema

Name	Required	Description
`to`	No	End of range — RFC3339 or epoch seconds. Default: now.
`org`	No	Organization slug.
`from`	No	Start of range — RFC3339 or epoch seconds. Overrides `since` when set.
`step`	No	Step (range queries only). Examples: "15s", "60s", "5m". Default: "60s".
`limit`	No	Without `query`: most documented metrics to list (default: all).
`query`	No	PromQL, scoped to the org (no org label). Real metric names only; omit `query` to list them if unsure. Pre-rated egress, cross_zone_traffic, and requests_per_second are queried bare, never in rate().
`since`	No	Relative lookback (e.g., "5m", "1h", "24h"). Used when `from` is not provided. Default: "1h".
`filter`	No	Without `query`: a case-insensitive substring that narrows the listed names, e.g. "cpu".
`metric`	No	Without `query`: a metric name, custom ones too; returns its live labels and their values.
`resolution`	No	`instant` for /query — a single sample at `to` (defaults to now); `from`/`since`/`step` are ignored. `range` for /query_range (default).

Output Schema

Name	Required	Description
`ok`	Yes
`data`	No	The full result. Read this, not only the summary.
`details`	No
`summary`	Yes
`nextSteps`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 28, 2026

changedInput schema / properties / metric / description

Previous value: -"Without `query`: a metric name, custom ones too; returns its live label values (workload, gvc, location)."New value: +"Without `query`: a metric name, custom ones too; returns its live labels and their values."

Changed5 schema fields changedOct 22, 2026

addedInput schema / properties / filter

Added value: +{
+  "description": "Without `query`: a case-insensitive substring that narrows the listed names, e.g. \"cpu\".",
+  "type": "string"
+}

addedInput schema / properties / limit

Added value: +{
+  "description": "Without `query`: most documented metrics to list (default: all).",
+  "maximum": 500,
+  "minimum": 1,
+  "type": "integer"
+}

addedInput schema / properties / metric

Added value: +{
+  "description": "Without `query`: a metric name, custom ones too; returns its live label values (workload, gvc, location).",
+  "type": "string"
+}

changedInput schema / properties / query / description

Previous value: -"PromQL, scoped to the org (no org label). Real metric names only; list_metrics if unsure. Pre-rated egress, cross_zone_traffic, and requests_per_second are queried bare, never in rate()."New value: +"PromQL, scoped to the org (no org label). Real metric names only; omit `query` to list them if unsure. Pre-rated egress, cross_zone_traffic, and requests_per_second are queried bare, never in rate()."

removedInput schema / required
```
Removed value: -[
-  "query"
-]
```

Changed21 schema fields changedSep 30, 2026

removedInput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

removedInput schema / additionalProperties
```
Removed value: -false
```
removedInput schema / properties / from / maxLength
```
Removed value: -40
```

changedInput schema / properties / org / description

Previous value: -"Organization slug (lowercase kebab-case). NEVER guess — if the user has not named one, ask. On org-not-found, stop and ask; do not retry variants."New value: +"Organization slug."

removedInput schema / properties / org / maxLength
```
Removed value: -63
```
removedInput schema / properties / org / minLength
```
Removed value: -1
```

removedInput schema / properties / org / pattern

Removed value: -"^[a-z0-9]([a-z0-9-]{0,61}[a-z0-9])?$"

changedInput schema / properties / query / description

Previous value: -"PromQL query, scoped automatically to the org in the request path (no `org=` label needed). Use REAL Control Plane metric names — call list_metrics if unsure. Examples with actual metrics: `avg by (workload) (cpu_used)` (gauge), `sum by (workload) (rate(container_restarts[5m]))` (counter), `histogram_quantile(0.95, sum by (le) (request_duration_ms_bucket))` (latency histogram). Pre-rated series — `egress`, `cross_zone_traffic`, `requests_per_second` — are queried bare, never wrapped in rate()."New value: +"PromQL, scoped to the org (no org label). Real metric names only; list_metrics if unsure. Pre-rated egress, cross_zone_traffic, and requests_per_second are queried bare, never in rate()."

removedInput schema / properties / query / maxLength
```
Removed value: -4000
```
removedInput schema / properties / query / minLength
```
Removed value: -1
```
removedInput schema / properties / since / maxLength
```
Removed value: -40
```
removedInput schema / properties / step / maxLength
```
Removed value: -20
```
removedInput schema / properties / to / maxLength
```
Removed value: -40
```

changedInput schema / required

Previous value: -[
-  "org",
-  "query"
-]New value: +[
+  "query"
+]

removedOutput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

removedOutput schema / additionalProperties
```
Removed value: -false
```

changedOutput schema / properties / data / description

Previous value: -"The full machine-readable result — list rows, the resource object, query results. Read THIS, not just the summary."New value: +"The full result. Read this, not only the summary."

addedOutput schema / properties / details
```
Added value: +{
+  "type": "string"
+}
```

removedOutput schema / properties / nextSteps / description

Removed value: -"Recommended follow-up actions for this task, in order."

removedOutput schema / properties / ok / description
```
Removed value: -"Whether the call succeeded."
```
removedOutput schema / properties / summary / description
```
Removed value: -"One-line summary of the result."
```

First observedJun 28, 2026

TDQS

Score is being calculated.

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