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get

Retrieve text or attributes of a UI element on a real device using a snapshot reference or selector expression. Enables inspection of app interfaces.

Instructions

Get element text or attributes.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sessionNoAgent-device session name.
platformNoPlatform selector used to resolve a device.
deviceTargetNoDevice target form. Maps to the CLI --target flag.
targetYesUI element target by snapshot ref or selector expression.
deviceNoDevice name selector.
udidNoiOS device UDID selector.
serialNoAndroid serial selector.
iosSimulatorDeviceSetNoiOS simulator device-set path used for device resolution.
androidDeviceAllowlistNoAndroid serial allowlist used for device resolution.
daemonBaseUrlNoRemote daemon base URL.
daemonAuthTokenNoRemote daemon auth token.
tenantNoRemote tenant identifier.
runIdNoLease run identifier.
leaseIdNoExisting lease identifier.
cwdNoWorking directory for command execution.
debugNoEnable debug diagnostics.
formatYes
depthNoSnapshot traversal depth.
scopeNoSnapshot scope selector used before resolution.
rawNoUse raw snapshot data during selector resolution.
stateDirNoAgent-device state directory.
Behavior2/5

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

No annotations are provided, so the description must carry the burden of behavioral disclosure. The description only states the action but doesn't specify if the tool is read-only, requires a prior snapshot, or has any side effects. The agent cannot infer safety or prerequisites from the description alone.

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, concise sentence with no extraneous words. It is front-loaded and efficient, earning its place without waste.

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 tool's complexity (21 parameters, no output schema) and the absence of annotations, the description is too minimal. It does not explain what 'text' or 'attributes' are returned, how to interpret the output, or how the tool interacts with the device. The high schema coverage partially compensates, but the description lacks essential context for an agent to use the tool correctly.

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 95%, so the baseline is 3. The description adds no parameter-specific information beyond what the schema already provides. The parameters are well-documented in the schema, so the description doesn't need to compensate, but it also doesn't add value.

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 'Get element text or attributes' clearly states the verb and resource (element), and it distinguishes itself from sibling tools like 'find' (which locates elements) and 'click'. However, it could be more specific about the scope (UI element) and the exact meaning of 'attributes'.

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?

No guidance is provided on when to use this tool versus alternatives. For example, it doesn't explain when to use 'get' instead of 'find' or 'snapshot'. There are no when-not-to-use or exclusionary conditions.

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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