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hmrdkn-labs

Observability Agent MCP

by hmrdkn-labs
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TypeScript
Hybrid

observability.query_metrics

Read-onlyIdempotent

Execute a bounded metrics query using a named template to retrieve observability data within a specified time window.

Instructions

Run a bounded named metrics query.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
atNo
toNo
fromNo
stepMsNo
queryTemplateYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
dataYes
warningsYes
freshnessYes
truncatedYes
observedAtYes
providerClassYes
schemaVersionYes
redactionsAppliedYes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed6 schema fields changedv0.2.1
    • removedOutput schema / properties / data / additionalProperties
      Removed value: -false
    • addedOutput schema / properties / data / oneOf
      Added value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "queryKind": {
+        "const": "instant",
+        "type": "string"
+      },
+      "queryTemplate": {
+        "maxLength": 64,
+        "minLength": 1,
+        "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
+        "type": "string"
+      },
+      "series": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "labels": {
+              "additionalProperties": {
+                "maxLength": 256,
+                "type": "string"
+              },
+              "propertyNames": {
+                "maxLength": 64,
+                "minLength": 1,
+                "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
+                "type": "string"
+              },
+              "type": "object"
+            },
+            "name": {
+              "maxLength": 64,
+              "minLength": 1,
+              "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
+              "type": "string"
+            },
+            "samples": {
+              "items": {
+                "additionalProperties": false,
+                "properties": {
+                  "timestamp": {
+                    "format": "date-time",
+                    "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+                    "type": "string"
+                  },
+                  "value": {
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "timestamp",
+                  "value"
+                ],
+                "type": "object"
+              },
+              "maxItems": 1440,
+              "minItems": 1,
+              "type": "array"
+            }
+          },
+          "required": [
+            "name",
+            "labels",
+            "samples"
+          ],
+          "type": "object"
+        },
+        "maxItems": 50,
+        "type": "array"
+      }
+    },
+    "required": [
+      "queryTemplate",
+      "series",
+      "queryKind"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "from": {
+        "format": "date-time",
+        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+        "type": "string"
+      },
+      "queryKind": {
+        "const": "range",
+        "type": "string"
+      },
+      "queryTemplate": {
+        "maxLength": 64,
+        "minLength": 1,
+        "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
+        "type": "string"
+      },
+      "series": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "labels": {
+              "additionalProperties": {
+                "maxLength": 256,
+                "type": "string"
+              },
+              "propertyNames": {
+                "maxLength": 64,
+                "minLength": 1,
+                "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
+                "type": "string"
+              },
+              "type": "object"
+            },
+            "name": {
+              "maxLength": 64,
+              "minLength": 1,
+              "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
+              "type": "string"
+            },
+            "samples": {
+              "items": {
+                "additionalProperties": false,
+                "properties": {
+                  "timestamp": {
+                    "format": "date-time",
+                    "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+                    "type": "string"
+                  },
+                  "value": {
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "timestamp",
+                  "value"
+                ],
+                "type": "object"
+              },
+              "maxItems": 1440,
+              "minItems": 1,
+              "type": "array"
+            }
+          },
+          "required": [
+            "name",
+            "labels",
+            "samples"
+          ],
+          "type": "object"
+        },
+        "maxItems": 50,
+        "type": "array"
+      },
+      "stepMs": {
+        "maximum": 3600000,
+        "minimum": 1000,
+        "type": "integer"
+      },
+      "to": {
+        "format": "date-time",
+        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+        "type": "string"
+      }
+    },
+    "required": [
+      "queryTemplate",
+      "series",
+      "queryKind",
+      "from",
+      "to",
+      "stepMs"
+    ],
+    "type": "object"
+  }
+]
    • removedOutput schema / properties / data / properties
      Removed value: -{
-  "from": {
-    "format": "date-time",
-    "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-    "type": "string"
-  },
-  "queryKind": {
-    "enum": [
-      "instant",
-      "range"
-    ],
-    "type": "string"
-  },
-  "queryTemplate": {
-    "maxLength": 64,
-    "minLength": 1,
-    "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
-    "type": "string"
-  },
-  "series": {
-    "items": {
-      "additionalProperties": false,
-      "properties": {
-        "labels": {
-          "additionalProperties": {
-            "maxLength": 256,
-            "type": "string"
-          },
-          "propertyNames": {
-            "maxLength": 64,
-            "minLength": 1,
-            "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
-            "type": "string"
-          },
-          "type": "object"
-        },
-        "name": {
-          "maxLength": 64,
-          "minLength": 1,
-          "pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
-          "type": "string"
-        },
-        "samples": {
-          "items": {
-            "additionalProperties": false,
-            "properties": {
-              "timestamp": {
-                "format": "date-time",
-                "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-                "type": "string"
-              },
-              "value": {
-                "type": "number"
-              }
-            },
-            "required": [
-              "timestamp",
-              "value"
-            ],
-            "type": "object"
-          },
-          "maxItems": 1440,
-          "minItems": 1,
-          "type": "array"
-        }
-      },
-      "required": [
-        "name",
-        "labels",
-        "samples"
-      ],
-      "type": "object"
-    },
-    "maxItems": 50,
-    "type": "array"
-  },
-  "stepMs": {
-    "maximum": 3600000,
-    "minimum": 1000,
-    "type": "integer"
-  },
-  "to": {
-    "format": "date-time",
-    "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-    "type": "string"
-  }
-}
    • removedOutput schema / properties / data / required
      Removed value: -[
-  "queryTemplate",
-  "queryKind",
-  "series"
-]
    • removedOutput schema / properties / data / type
      Removed value: -"object"
    • changedOutput schema / properties / providerClass / enum
      Previous value: -[
-  "fake",
-  "grafana",
-  "prometheus-compatible",
-  "composite"
-]New value: +[
+  "fake",
+  "grafana",
+  "prometheus-compatible",
+  "grafana-alertmanager",
+  "composite"
+]
  2. First observedv0.1.0

TDQS

C2.1/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior. The description adds no further behavioral context, such as time-bounds constraints or result characteristics, beyond what is implied by parameter names.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise (one sentence) but excessively brief. It does not earn its space as it fails to add meaningful information beyond the name and schema.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite having an output schema, the description is too sparse for a tool with five parameters and complex time formats. It lacks essential details about query bounds, template naming, step behavior, and result structure.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must compensate. However, it only says 'bounded named metrics query', which explains none of the five parameters (at, to, from, stepMs, queryTemplate) or their semantics.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'Run a bounded named metrics query' identifies the verb and resource but is vague. 'Bounded' hints at time constraints but doesn't specify the query's scope or differentiate it from sibling tools, which are clearly distinct in purpose.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No usage guidance is provided. The description does not indicate when to use this tool versus alternatives, nor does it mention any prerequisites or context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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