play_list_reviews

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

The description indicates a read-only operation by using 'List', but it does not disclose behavioral details such as pagination, rate limits, or the precise meaning of 'recent.' With no annotations, the description carries the transparency burden but only partially fulfills it.

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 consists of two concise sentences. Every phrase adds value: the first defines the purpose and output, and the second provides platform context. There is no redundancy or filler.

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?

For a simple list operation with one optional parameter and no output schema, the description provides the essential fields (star ratings and text), but it leaves 'recent' undefined and does not mention whether the response includes pagination or other metadata. Given the absence of annotations and output schema, the description is only moderately complete.

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 parameter max_results is neither described nor referenced in the description. With 0% schema description coverage, the description was expected to compensate for the missing parameter explanation. The parameter name and constraints in the schema are self-evident, but the description adds no semantic context about its role in limiting or paginating results.

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 clearly states the tool's action ('List recent user reviews') and the key data returned ('star ratings and text'). It also distinguishes itself from the sibling tool play_reply_review by focusing on reading reviews, and the note about no App Store Connect equivalent adds platform context.

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?

The description implies this is the intended method for fetching reviews on Play, explicitly noting 'Play exposes reviews directly via the API.' However, it does not explicitly state when not to use this tool or mention alternatives like play_reply_review, so it falls short of full explicit guidance.

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