UniFi Protect MCP

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protect_list_sirens

Read-only

List all UniFi Protect sirens with current state, volume, LED settings, and activation status to monitor and manage siren devices.

Instructions

List all sirens managed by UniFi Protect. Returns array; each siren includes: id, modelKey, name, mac, state, type, guid, volume, ledSettings (isEnabled), sirenStatus (isActive, activatedAt, duration), connectionType, wirelessConnectionState (7.3.47 docs).

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Output Schema

TableJSON Schema

Name	Required	Description	Default
`result`	Yes	Array of items returned by the list endpoint

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedv2.13.0Sep 20, 2026

addedOutput schema / properties / result / items / properties / guid

Added value: +{
+  "description": "Hardware MODEL GUID, shared by every unit of the same model. NOT a per-device identifier — use `id` to identify a device.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

addedOutput schema / properties / result / items / properties / type

Added value: +{
+  "description": "Hardware model name, e.g. \"UVC G6 Turret\", \"UP Chime PoE\", \"UNVR-PRO\"",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Changed10 schema fields changedv2.11.5Sep 13, 2026
- removedOutput schema / properties / result / items / properties / connectionType / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / result / items / properties / connectionType / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / result / items / properties / mac / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / result / items / properties / mac / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / result / items / properties / modelKey / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / result / items / properties / modelKey / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / result / items / properties / name / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / result / items / properties / name / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / result / items / properties / state / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / result / items / properties / state / type
```
Added value: +[
+  "string",
+  "null"
+]
```

Changed5 schema fields changedv2.7.5Jun 21, 2026

addedOutput schema / properties / result / items / properties / connectionType

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ],
+  "description": "Connection type, e.g. \"lora\""
+}

addedOutput schema / properties / result / items / properties / ledSettings
```
Added value: +{
+  "description": "LED settings (object: isEnabled)"
+}
```

addedOutput schema / properties / result / items / properties / sirenStatus

Added value: +{
+  "description": "Current siren status (object: isActive, activatedAt, duration)"
+}

addedOutput schema / properties / result / items / properties / volume
```
Added value: +{
+  "description": "Siren volume (number)"
+}
```
addedOutput schema / properties / result / items / properties / wirelessConnectionState
```
Added value: +{
+  "description": "Wireless link state (object)"
+}
```

First observedv2.7.4Jun 11, 2026

TDQS

A4.3/5.0

Behavior4/5

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

The annotations already establish that this is read-only and non-destructive; the description adds meaningful behavioral detail by specifying the return type (array) and enumerating the exact fields available. It also notes a version-dependent field, which is useful context.

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 compact: two sentences with no filler. It front-loads the core purpose and then succinctly lists the return fields, including a useful version note.

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

Completeness5/5

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

For a zero-parameter, read-only list operation, the description is complete. An agent can invoke the tool without additional info and knows exactly what fields will be returned.

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

Parameters4/5

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

The tool has no parameters, so the schema covers everything and the description does not need to explain inputs. The returned fields are described, adding value beyond the empty input schema.

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 that the tool lists all sirens managed by UniFi Protect, which is a specific verb and resource. It also includes the return structure, making it easy to distinguish from the get_siren and other sibling tools.

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

Usage Guidelines3/5

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

The intended use is implied: call this when you need a list of all sirens rather than a single siren. However, there is no explicit guidance about when to prefer this over protect_get_siren or other list tools.

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