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google-play-developer-mcp

by devinwang

device_tier_configs_create

Create a new device-tier configuration for your Android app to manage device-specific settings and behaviors.

Instructions

Create a new device-tier config.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
packageNameYesAndroid application package name, e.g. com.example.app
deviceTierConfigYes
allowUnknownDevicesNo
Behavior1/5

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

With no annotations provided, the description carries full burden for behavioral disclosure. It only states 'Create a new device-tier config' with no information on success/failure behavior, idempotency, side effects, permissions required, or response format. This is critically insufficient for a mutation tool.

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

Conciseness2/5

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

The description is extremely concise (one sentence), but it is under-informative for the tool's complexity (3 parameters, free-form object). Conciseness should not sacrifice necessary detail; here it does.

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

Completeness1/5

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

The description lacks essential context: no explanation of what a device-tier config is, no example, no output expectations, and no interaction with other entities. Given the complexity (nested object, no annotations, no output schema), the description is woefully incomplete.

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

Parameters1/5

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

Schema description coverage is only 33% (only packageName described). The tool description adds no parameter-level information. The deviceTierConfig object is free-form (additionalProperties: true) with no hint about expected keys or structure, leaving the agent with no guidance beyond the schema.

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 clearly states the action ('Create') and the resource ('device-tier config'), making the basic purpose obvious. However, it does not explicitly distinguish from sibling tools (get, list), though the name implies creation. A more explicit differentiation would be beneficial.

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. There is no mention of prerequisites, contexts where creation is appropriate, or exclusions. The agent receives no help in deciding between this and sibling get/list tools.

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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