appd-mcp

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Get AppDynamics events

appd_get_events

Retrieve up to 600 application events by type and severity within a specified time range. Filter events to monitor application health and errors.

Instructions

Retrieve up to 600 events for an application by type and severity within a time window.

Input Schema

TableJSON Schema

Name	Required	Description
`application`	Yes
`eventTypes`	Yes	AppD event types, e.g. APPLICATION_DEPLOYMENT, APPLICATION_ERROR, DIAGNOSTIC_SESSION, CUSTOM, RESOURCE_POOL_LIMIT_REACHED, etc. At least one required, up to 50.
`severities`	Yes	At least one of INFO, WARN, ERROR.
`timeRange`	No	AppD time range. Defaults to BEFORE_NOW with durationMinutes=30 if omitted by the caller.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`summary`	Yes
`evidence`	No
`entities`	Yes
`timeRange`	No
`sourceEndpoints`	Yes
`pagination`	No
`warnings`	Yes
`truncated`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed6 schema fields changedv0.1.2May 28, 2026

changedInput schema / properties / application / anyOf

Previous value: -[
-  {
-    "description": "Application name",
-    "minLength": 1,
-    "type": "string"
-  },
-  {
-    "description": "Application numeric id",
-    "exclusiveMinimum": 0,
-    "type": "integer"
-  }
-]New value: +[
+  {
+    "description": "Application name (1–255 chars)",
+    "maxLength": 255,
+    "minLength": 1,
+    "type": "string"
+  },
+  {
+    "description": "Application numeric id",
+    "exclusiveMinimum": 0,
+    "type": "integer"
+  }
+]

changedInput schema / properties / eventTypes / description

Previous value: -"AppD event types, e.g. APPLICATION_DEPLOYMENT, APPLICATION_ERROR, DIAGNOSTIC_SESSION, CUSTOM, RESOURCE_POOL_LIMIT_REACHED, etc. At least one required."New value: +"AppD event types, e.g. APPLICATION_DEPLOYMENT, APPLICATION_ERROR, DIAGNOSTIC_SESSION, CUSTOM, RESOURCE_POOL_LIMIT_REACHED, etc. At least one required, up to 50."

addedInput schema / properties / eventTypes / items / maxLength
```
Added value: +64
```
addedInput schema / properties / eventTypes / maxItems
```
Added value: +50
```
addedInput schema / properties / severities / maxItems
```
Added value: +3
```

changedInput schema / properties / timeRange / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "durationMinutes": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "type": {
-        "const": "BEFORE_NOW",
-        "type": "string"
-      }
-    },
-    "required": [
-      "type",
-      "durationMinutes"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "durationMinutes": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "endTimeMs": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "type": {
-        "const": "BEFORE_TIME",
-        "type": "string"
-      }
-    },
-    "required": [
-      "type",
-      "durationMinutes",
-      "endTimeMs"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "durationMinutes": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "startTimeMs": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "type": {
-        "const": "AFTER_TIME",
-        "type": "string"
-      }
-    },
-    "required": [
-      "type",
-      "durationMinutes",
-      "startTimeMs"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "endTimeMs": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "startTimeMs": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "type": {
-        "const": "BETWEEN_TIMES",
-        "type": "string"
-      }
-    },
-    "required": [
-      "type",
-      "startTimeMs",
-      "endTimeMs"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "durationMinutes": {
+        "exclusiveMinimum": 0,
+        "maximum": 525600,
+        "type": "integer"
+      },
+      "type": {
+        "const": "BEFORE_NOW",
+        "type": "string"
+      }
+    },
+    "required": [
+      "type",
+      "durationMinutes"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "durationMinutes": {
+        "$ref": "#/properties/timeRange/anyOf/0/properties/durationMinutes"
+      },
+      "endTimeMs": {
+        "exclusiveMinimum": 0,
+        "maximum": 253402300799000,
+        "type": "integer"
+      },
+      "type": {
+        "const": "BEFORE_TIME",
+        "type": "string"
+      }
+    },
+    "required": [
+      "type",
+      "durationMinutes",
+      "endTimeMs"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "durationMinutes": {
+        "$ref": "#/properties/timeRange/anyOf/0/properties/durationMinutes"
+      },
+      "startTimeMs": {
+        "$ref": "#/properties/timeRange/anyOf/1/properties/endTimeMs"
+      },
+      "type": {
+        "const": "AFTER_TIME",
+        "type": "string"
+      }
+    },
+    "required": [
+      "type",
+      "durationMinutes",
+      "startTimeMs"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "endTimeMs": {
+        "$ref": "#/properties/timeRange/anyOf/1/properties/endTimeMs"
+      },
+      "startTimeMs": {
+        "$ref": "#/properties/timeRange/anyOf/1/properties/endTimeMs"
+      },
+      "type": {
+        "const": "BETWEEN_TIMES",
+        "type": "string"
+      }
+    },
+    "required": [
+      "type",
+      "startTimeMs",
+      "endTimeMs"
+    ],
+    "type": "object"
+  }
+]

First observedv0.1.0May 7, 2026

TDQS

B3.2/5.0

Behavior2/5

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

Without annotations, the description carries the full burden of behavioral disclosure. It mentions the 600-event limit but omits details like pagination behavior, ordering, result format, or read-only nature. A mutation vs read distinction is not clarified.

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

Conciseness5/5

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

The description is a single sentence of 17 words, efficiently front-loading the core action and filters. No redundant or unnecessary information.

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

Completeness2/5

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

Given the complexity of the timeRange parameter (4 variants) and the presence of an output schema, the description lacks detail on how to construct the time range, what severity values mean, or any examples. It is too sparse for a tool with nested objects.

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

Parameters3/5

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

Schema coverage is 75%, and the schema provides descriptions for most parameters. The description adds no additional semantic value beyond summarizing the filter criteria. Baseline of 3 is appropriate as the schema does the heavy lifting.

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

Purpose5/5

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

The description clearly states the verb 'retrieve', the resource 'events', and key filters (application, type, severity, time window). It also specifies a limit of 600 events. This distinguishes it from sibling tools which deal with alerts, violations, metrics, etc.

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?

The description provides no guidance on when to use this tool versus alternatives. It does not mention prerequisites, when not to use, or suggest sibling tools for different use cases.

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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