List Google Play reviews

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

With no annotations, the description carries the full burden. It does disclose the pagination contract (returns Google Play pagination data, nextPageToken feeds pageToken), which is the key behavioral trait for a paged endpoint. It omits ordering, rate limits, default/maximum result count, and whether replies are included.

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?

Two sentences, front-loaded with the purpose and followed immediately by the pagination mechanic — no filler. Slightly terse for the amount of undocumented surface, but nothing is wasted.

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?

No output schema and no annotations, so the description is the only behavioral source; it covers pagination but not defaults, result size, or translation behavior. Adequate to make a first call, insufficient to call it optimally.

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?

Schema description coverage is 0% across four parameters, so the description must compensate. It only explains pageToken (via the nextPageToken wording); packageName format, maxResults limits/default, and translationLanguage behavior are left entirely to bare JSON-Schema types and patterns.

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?

States a specific verb and resource ("List reviews for an Android app"), which cleanly separates it from the singular sibling get_review. It does not explicitly name the siblings, but the plural-list framing is unambiguous.

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 pagination instruction ("pass nextPageToken as pageToken for the next page") gives operational guidance on continuation. However, there is no explicit statement of when to use this versus get_review for a single review or reply_to_review, so usage is only implied.

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