agent-device

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Overview Schema Related Servers Score Discussions

shutdown

Terminate a selected iOS, Android, or desktop simulator or emulator by device name, serial, or UDID. Use it to close sessions and release resources after testing.

Instructions

Shutdown a selected simulator or emulator. Times out after 90s.

Input Schema

TableJSON Schema

Name	Required	Description
`udid`	No	iOS device UDID selector.
`debug`	No	Enable debug diagnostics.
`runId`	No	Lease run identifier.
`device`	No	Device name selector.
`serial`	No	Android device or Vega VVD serial selector.
`target`	No	Alias for deviceTarget on commands without a UI target field. Interaction commands reserve target for the UI element.
`tenant`	No	Remote tenant identifier.
`leaseId`	No	Existing lease identifier.
`session`	No	Agent-device session name.
`platform`	No	Platform selector used to resolve a device.
`includeCost`	No	Include per-command agent-cost (cost.wallClockMs, …) in structuredContent. Defaults to off; the default response shape is unchanged.
`deviceTarget`	No	Device target form. Maps to the CLI --target flag.
`responseLevel`	No	Response verbosity: token-cheap digest / default (today) / full. Defaults to default; the default response shape is unchanged.
`mcpOutputFormat`	No	MCP text content format. Defaults to optimized agent-friendly text; use json for JSON text. Structured content is always returned separately.
`androidDeviceAllowlist`	No	Android serial allowlist used for device resolution.

Output Schema

TableJSON Schema

Name	Required	Description
`id`	Yes	Stable device id.
`kind`	Yes
`device`	Yes	Human-readable device name.
`target`	Yes
`platform`	Yes
`shutdown`	Yes

Schema Changelog

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

Changed8 schema fields changedv0.20.10Aug 26, 2026

removedInput schema / properties / cwd

Removed value: -{
-  "description": "Working directory for command execution.",
-  "type": "string"
-}

removedInput schema / properties / daemonAuthToken

Removed value: -{
-  "description": "Remote daemon auth token.",
-  "type": "string"
-}

removedInput schema / properties / daemonBaseUrl

Removed value: -{
-  "description": "Remote daemon base URL.",
-  "type": "string"
-}

removedInput schema / properties / iosSimulatorDeviceSet

Removed value: -{
-  "description": "iOS simulator device-set path used for device resolution.",
-  "type": "string"
-}

removedInput schema / properties / iosXctestDerivedDataPath

Removed value: -{
-  "description": "Derived data path for external iOS XCTest runner execution.",
-  "type": "string"
-}

removedInput schema / properties / iosXctestEnvDir

Removed value: -{
-  "description": "Writable directory for iOS XCTest runner env overlays.",
-  "type": "string"
-}

removedInput schema / properties / iosXctestrunFile

Removed value: -{
-  "description": "Externally built iOS XCTest runner .xctestrun artifact path.",
-  "type": "string"
-}

removedInput schema / properties / stateDir

Removed value: -{
-  "description": "Agent-device state directory.",
-  "type": "string"
-}

Changed2 schema fields changedv0.20.9Aug 19, 2026

changedInput schema / properties / platform / enum

Previous value: -[
-  "apple",
-  "android",
-  "vega",
-  "linux",
-  "web",
-  "ios",
-  "macos"
-]New value: +[
+  "apple",
+  "android",
+  "harmonyos",
+  "vega",
+  "linux",
+  "web",
+  "ios",
+  "macos"
+]

changedOutput schema / properties / platform / enum

Previous value: -[
-  "ios",
-  "macos",
-  "android",
-  "vega",
-  "linux",
-  "web"
-]New value: +[
+  "ios",
+  "macos",
+  "android",
+  "harmonyos",
+  "vega",
+  "linux",
+  "web"
+]

Changed3 schema fields changedv0.20.2Jul 30, 2026

changedInput schema / properties / platform / enum

Previous value: -[
-  "apple",
-  "android",
-  "linux",
-  "web",
-  "ios",
-  "macos"
-]New value: +[
+  "apple",
+  "android",
+  "vega",
+  "linux",
+  "web",
+  "ios",
+  "macos"
+]

changedInput schema / properties / serial / description

Previous value: -"Android serial selector."New value: +"Android device or Vega VVD serial selector."

changedOutput schema / properties / platform / enum

Previous value: -[
-  "apple",
-  "android",
-  "linux",
-  "web"
-]New value: +[
+  "ios",
+  "macos",
+  "android",
+  "vega",
+  "linux",
+  "web"
+]

Changed4 schema fields changedv0.17.11Jul 6, 2026

addedInput schema / properties / includeCost

Added value: +{
+  "description": "Include per-command agent-cost (cost.wallClockMs, …) in structuredContent. Defaults to off; the default response shape is unchanged.",
+  "type": "boolean"
+}

changedInput schema / properties / platform / enum

Previous value: -[
-  "ios",
-  "macos",
-  "android",
-  "linux",
-  "web",
-  "apple"
-]New value: +[
+  "apple",
+  "android",
+  "linux",
+  "web",
+  "ios",
+  "macos"
+]

addedInput schema / properties / responseLevel

Added value: +{
+  "description": "Response verbosity: token-cheap digest / default (today) / full. Defaults to default; the default response shape is unchanged.",
+  "enum": [
+    "digest",
+    "default",
+    "full"
+  ],
+  "type": "string"
+}

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "device": {
+      "description": "Human-readable device name.",
+      "type": "string"
+    },
+    "id": {
+      "description": "Stable device id.",
+      "type": "string"
+    },
+    "kind": {
+      "enum": [
+        "simulator",
+        "emulator",
+        "device"
+      ],
+      "type": "string"
+    },
+    "platform": {
+      "enum": [
+        "apple",
+        "android",
+        "linux",
+        "web"
+      ],
+      "type": "string"
+    },
+    "shutdown": {
+      "properties": {
+        "error": {
+          "additionalProperties": true,
+          "description": "Normalized error detail when shutdown failed.",
+          "type": "object"
+        },
+        "exitCode": {
+          "type": "number"
+        },
+        "stderr": {
+          "type": "string"
+        },
+        "stdout": {
+          "type": "string"
+        },
+        "success": {
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "success",
+        "exitCode",
+        "stdout",
+        "stderr"
+      ],
+      "type": "object"
+    },
+    "target": {
+      "enum": [
+        "mobile",
+        "tv",
+        "desktop"
+      ],
+      "type": "string"
+    }
+  },
+  "required": [
+    "platform",
+    "target",
+    "device",
+    "id",
+    "kind",
+    "shutdown"
+  ],
+  "type": "object"
+}

Changed1 schema field changedv0.17.7Jun 23, 2026

changedInput schema / properties / platform / enum

Previous value: -[
-  "ios",
-  "macos",
-  "android",
-  "linux",
-  "apple"
-]New value: +[
+  "ios",
+  "macos",
+  "android",
+  "linux",
+  "web",
+  "apple"
+]

Addedv0.17.6Jun 18, 2026

TDQS

A3.5/5.0

Behavior3/5

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

With no annotations, the description must disclose behavior itself. It adds a useful operational detail (90s timeout) and the verb clearly indicates a power-off action, but it omits other behavioral context such as whether the shutdown is graceful, whether a running target is required, or what side effects occur on the device/session.

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?

Two short sentences with no filler: the action is front-loaded and the timeout constraint is a separate, relevant operational note. Every word earns its place.

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

Completeness3/5

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

The presence of an output schema and full parameter descriptions reduce the need to explain return values or individual fields. Still, for a tool with 15 optional parameters and no required fields, the description leaves target selection ambiguous ('selected' is not mapped to the selectors).

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 description coverage is 100%, so all 15 parameters already have individual descriptions. The tool description adds no guidance about which selector fields (udid, serial, device, platform, session, etc.) are alternatives or how to construct a valid target, so it does not improve on the schema here.

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

Purpose4/5

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

The description states a specific verb and resource ('Shutdown a selected simulator or emulator'), so the core function is clear. However, it does not explicitly distinguish itself from sibling tools like boot or close; it relies on the tool name to carry that differentiation.

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 use case is implied: call this when a selected simulator or emulator needs to be powered off. It offers no explicit guidance about when not to use it, how it relates to boot/close, or which of the many optional selector parameters should be supplied.

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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