appstore_similar

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

No annotations are provided, so the description carries full burden. It states the tool returns related apps, but does not disclose potential limitations (e.g., max results, pagination) or error conditions. Given the simplicity of the tool, this is acceptable but not thorough.

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 extremely concise: two sentences with zero wasted words. The main purpose is front-loaded, and the parameter guidance is provided succinctly. Every word adds value.

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?

Given that there is no output schema and no annotations, the description should hint at the return format or structure. It says 'Returns the related apps shown on the App Store product page', which is vague. For a tool with only 4 input params and no output schema, more detail about what information is returned would improve completeness.

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 100% coverage with descriptions for all parameters. The description adds value by clarifying that either id or app_id should be provided, implying mutual exclusivity and optionality. Country and lang are already explained in schema, but the description reinforces the main parameter choice.

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 it retrieves 'You Might Also Like' apps from the App Store product page. This is a specific verb-resource pair that distinguishes it from sibling tools like appstore_app (single app details) and appstore_search (general search). The reference to the product page adds precise 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 explicitly says 'Provide either id or app_id', giving clear guidance on which parameters to use. However, it does not explicitly contrast with alternatives or state when to choose this tool over others (e.g., appstore_ratings). Still, the instruction is helpful and reduces ambiguity.

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