playstation_deals

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

No annotations are provided, so the description carries the full burden. It discloses that data is credential-free and public, but does not cover rate limits, caching, data freshness, pagination, or other behavioral traits. The description is too brief to fully compensate for the lack of annotations.

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 two sentences with no unnecessary words. The first sentence states the core function, and the second adds relevant details about the return structure and parameters. It is front-loaded and every sentence is concise and purposeful.

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 adequately explains what is returned (shelves with titles and prices, plus a flattened list) and the parameters. However, it lacks details on output format, field names, defaults, or limits, leaving some gaps for a tool with no output schema.

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 coverage is 100% and both parameters have descriptions. The description adds context that 'cc selects the store region (and price currency)' and 'l the text language', which slightly extends the schema descriptions but does not add significant new meaning beyond what is already in the schema.

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 gets PlayStation Store deals shelves, specifying the resource ('deals shelves') and the output structure (list of shelves with titles and per-item price, plus a flattened deduplicated list). It differentiates itself from siblings like playstation_browse and playstation_search by focusing on deals.

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 mentions optional parameters for region and language, and states it is 'credential-free public PlayStation Store data', implying no authentication is needed. However, it does not explicitly state when to use this tool versus alternatives like playstation_browse or playstation_search, nor does it provide exclusions or prerequisites.

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