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adb-device

Manage Android device connections by listing, selecting, waiting, checking properties, or performing health checks.

Instructions

Manage device connections.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
operationYes
deviceIdNo
Behavior2/5

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

Annotations are all false, but the description adds no behavioral context. There is no mention of side effects, read-only nature, or any other behavioral traits beyond the tool name.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely short but achieves conciseness at the cost of clarity. While there is no wasted text, it is under-specified.

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 has 2 parameters, no output schema, and minimal annotations, the description is insufficient. It does not explain the operations or how to use the deviceId parameter.

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

Parameters2/5

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

Schema description coverage is 0%. The description does not explain the 'operation' or 'deviceId' parameters. The enum for operation is implicit but not described, and deviceId is completely undefined.

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

Purpose3/5

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

The description 'Manage device connections' is vague and does not differentiate from siblings like adb-app or adb-shell. The operation enum in the schema provides some clarity, but the description itself lacks specificity.

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 on when to use this tool versus alternatives such as adb-app or adb-logcat. The description does not indicate prerequisites or context for usage.

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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