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

No annotations are provided, and the description discloses no behavior—whether the operation is read-only, requires authentication, makes a network call, or returns processed versus raw data. 'Details' implies retrieval but provides no operational context.

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

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

The description is short, but that is underspecification rather than conciseness. It front-loads a version marker and a restatement of the name, offering no useful substance.

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

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

With no annotations, no output schema, and an unexplained parameter, the description is far from complete. An agent cannot determine what details are returned, what appId should look like, or how this tool relates to its siblings.

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

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

The input schema has one parameter, appId, with no description, and the tool description adds nothing about its format, meaning, or optionality. The schema's 'default: null' is not enough for an agent to supply a correct value.

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

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

The description 'V1 App Gplay Details' is a bare title fragment; it gives no verb or explicit resource scope and mostly restates the tool name. It weakly signals Google Play details as opposed to Apple, but does not meet a clear purpose statement.

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

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

No guidance about when to use this tool versus siblings like app_gplay_reviews or app_apple_details. Since there is no exclusion or context cue, agents are left to infer the choice.

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