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callstack

agent-device

Official
by callstack
OverviewSchemaRelated ServersScoreDiscussions
TypeScript
Remote

install

Deploy an app binary from a local path to a selected iOS, Android, desktop, or TV device. Overwrite an existing app when replacement is requested.

Instructions

Install an app binary from a local path. Provide an app identifier with the path when the target needs explicit app selection; use reinstall to replace an already installed app. Times out after 180s.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
appNoOptional app identifier hint.
udidNoiOS device UDID selector.
debugNoEnable debug diagnostics.
runIdNoLease run identifier.
deviceNoDevice name selector.
serialNoAndroid device or Vega VVD serial selector.
targetNoAlias for deviceTarget on commands without a UI target field. Interaction commands reserve target for the UI element.
tenantNoRemote tenant identifier.
appPathYesPath to app binary.
leaseIdNoExisting lease identifier.
sessionNoAgent-device session name.
noRecordNoDo not record this action.
platformNoPlatform selector used to resolve a device.
includeCostNoInclude per-command agent-cost (cost.wallClockMs, …) in structuredContent. Defaults to off; the default response shape is unchanged.
deviceTargetNoDevice target form. Maps to the CLI --target flag.
responseLevelNoResponse verbosity: token-cheap digest / default (today) / full. Defaults to default; the default response shape is unchanged.
mcpOutputFormatNoMCP text content format. Defaults to optimized agent-friendly text; use json for JSON text. Structured content is always returned separately.
androidDeviceAllowlistNoAndroid serial allowlist used for device resolution.

Schema Changelog

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

  1. Changed8 schema fields changedv0.20.10
    • 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"
-}
  2. Changed1 schema field changedv0.20.9
    • changedInput schema / properties / platform / enum
      Previous value: -[
-  "apple",
-  "android",
-  "vega",
-  "linux",
-  "web",
-  "ios",
-  "macos"
-]New value: +[
+  "apple",
+  "android",
+  "harmonyos",
+  "vega",
+  "linux",
+  "web",
+  "ios",
+  "macos"
+]
  3. Changed3 schema fields changedv0.20.2
    • addedInput schema / properties / noRecord
      Added value: +{
+  "description": "Do not record this action.",
+  "type": "boolean"
+}
    • 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."
  4. Changed5 schema fields changedv0.17.11
    • addedInput schema / properties / app / description
      Added value: +"Optional app identifier hint."
    • 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"
+}
    • changedInput schema / required
      Previous value: -[
-  "app",
-  "appPath"
-]New value: +[
+  "appPath"
+]
  5. Changed1 schema field changedv0.17.7
    • changedInput schema / properties / platform / enum
      Previous value: -[
-  "ios",
-  "macos",
-  "android",
-  "linux",
-  "apple"
-]New value: +[
+  "ios",
+  "macos",
+  "android",
+  "linux",
+  "web",
+  "apple"
+]
  6. Changed5 schema fields changedv0.17.6
    • addedInput schema / properties / iosXctestDerivedDataPath
      Added value: +{
+  "description": "Derived data path for external iOS XCTest runner execution.",
+  "type": "string"
+}
    • addedInput schema / properties / iosXctestEnvDir
      Added value: +{
+  "description": "Writable directory for iOS XCTest runner env overlays.",
+  "type": "string"
+}
    • addedInput schema / properties / iosXctestrunFile
      Added value: +{
+  "description": "Externally built iOS XCTest runner .xctestrun artifact path.",
+  "type": "string"
+}
    • addedInput schema / properties / mcpOutputFormat
      Added value: +{
+  "description": "MCP text content format. Defaults to optimized agent-friendly text; use json for JSON text. Structured content is always returned separately.",
+  "enum": [
+    "optimized",
+    "json"
+  ],
+  "type": "string"
+}
    • changedInput schema / properties / platform / enum
      Previous value: -[
-  "ios",
-  "android",
-  "macos",
-  "linux",
-  "apple"
-]New value: +[
+  "ios",
+  "macos",
+  "android",
+  "linux",
+  "apple"
+]
  7. First observedv0.16.9

TDQS

A3.9/5.0
Behavior3/5

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

Annotations are not provided, so the description carries the burden of behavioral disclosure. It discloses a 180-second timeout but does not mention whether the operation is destructive or reversible, what side effects occur (e.g., overwriting), or what the response includes. The description adds some value with the timeout but is not rich on behavioral 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?

Two sentences, no wasted words, front-loaded with the core action and then the key exception (reinstall) and timeout. Each sentence 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 description is complete enough for basic usage but lacks context about behavioral side effects, return values, or resolution semantics across the many platforms/selectors. With 18 parameters and no output schema or annotations, a bit more context about expected behavior or failure modes would help. Still, the core operation is simply stated.

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 the schema already documents all 18 parameters. The description adds the note about providing an app identifier for explicit app selection, which is useful, but it doesn't go beyond that. Baseline 3 is appropriate.

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 states a specific verb and resource ('Install an app binary from a local path') and distinguishes itself from the sibling tool reinstall ('use reinstall to replace an already installed app'). It also mentions explicit app selection, which helps an agent identify the tool's purpose clearly.

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

Usage Guidelines4/5

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

The description provides guidance on when the app identifier is needed and explicitly routes to reinstall for replacing an installed app. It does not discuss other alternatives like install-from-source or broader platform/device selection context, but the core usage context is clear.

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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