gplay_similar

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

No annotations are provided, so the description bears full responsibility for behavioral disclosure. It only says 'Get similar apps' without mentioning return format, limitations, language/country effects, or any side effects. This is too sparse for an agent to anticipate tool behavior.

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 a single, front-loaded, clear sentence with no redundant words. It states the core purpose immediately and is appropriately concise for its simplicity.

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?

The tool has no output schema and no annotations, so the description must cover more ground. It omits parameter semantics, result shape, and usage context, making it incomplete for an agent to confidently invoke the tool, despite the simple 3-parameter interface.

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 only 33% (only appId has 'Package name'). The description adds no parameter information, failing to clarify the meaning or role of 'lang' and 'country' or how they affect results. With low schema coverage, the description needed to compensate but did not.

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 uses a specific verb ('Get') and resource ('similar apps from Google Play Store'), clearly distinguishing it from siblings like gplay_search, gplay_app, and especially appstore_similar. It is unambiguous about the platform and action.

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 usage for Google Play similar-app lookups, and the sibling names provide some context, but it does not explicitly state when to use this tool versus alternatives, nor does it mention exclusions or conditions. No alternative tools are referenced.

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