Skip to main content
Glama
callstack

agent-device

Official
by callstack
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

artifacts

List daemon or cloud provider artifacts for an active or completed session. Times out after 90s.

Instructions

List daemon or cloud provider artifacts for an active or completed session. Times out after 90s.

Input Schema

NameRequiredDescriptionDefault
udidNoApple device or simulator UDID; the selector that pins one device when several share a name.
debugNoEnable debug diagnostics.
runIdNoLease run identifier.
deviceNoDevice name selector (a UDID belongs in udid, a serial in serial).
serialNoAndroid, HarmonyOS, 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.
leaseIdNoExisting lease identifier.
sessionNoAgent-device session name.
platformNoPlatform selector used to resolve a device.
providerNoCloud provider name, for example browserstack, aws-device-farm, or testmu.
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.
providerSessionIdNoCloud provider session id or ARN.
androidDeviceAllowlistNoAndroid serial allowlist used for device resolution.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv0.21.27
    • changedInput schema / properties / provider / description
      Previous value: -"Cloud provider name, for example browserstack or aws-device-farm."New value: +"Cloud provider name, for example browserstack, aws-device-farm, or testmu."
  2. Changed3 schema fields changedv0.21.0
    • changedInput schema / properties / device / description
      Previous value: -"Device name selector."New value: +"Device name selector (a UDID belongs in udid, a serial in serial)."
    • changedInput schema / properties / serial / description
      Previous value: -"Android device or Vega VVD serial selector."New value: +"Android, HarmonyOS, or Vega VVD serial selector."
    • changedInput schema / properties / udid / description
      Previous value: -"iOS device UDID selector."New value: +"Apple device or simulator UDID; the selector that pins one device when several share a name."
  3. 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"
-}
  4. 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"
+]
  5. Changed2 schema fields changedv0.20.2
    • 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."
  6. Addedv0.17.11

TDQS

B3.2/5.0
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It usefully discloses a 90s timeout, which is genuine behavioral context, but says nothing about permissions, whether listing is read-only, pagination, or what an artifact actually is. Partial disclosure only.

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 zero waste; the core action is front-loaded and the timeout caveat follows immediately. Nothing redundant.

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?

For a tool with 17 parameters, no annotations, and no output schema, the description is thin. Because no output schema exists, the description should explain the return shape or artifact types, and it instead only names the timeout, leaving the agent unclear on what it will actually receive.

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% across all 17 parameters, so the schema fully documents selectors (udid, serial, session, providerSessionId, runId, etc.). The description adds no parameter-level meaning beyond that, which is the baseline 3 when the schema does the heavy lifting.

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?

States a specific verb (List) and resource (daemon or cloud provider artifacts) scoped to an active or completed session. It is clear what the tool does, though 'artifacts' is left undefined and it never distinguishes itself from siblings like logs or screenshot that also surface session output.

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 phrase 'for an active or completed session' implies a session prerequisite, but there is no explicit when-to-use, when-not-to-use, or comparison against alternatives such as logs, snapshot, or screenshot. An agent must infer the selection condition entirely.

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

Deploy Server

Other Tools