market_report

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

Discloses the cost ($1.00 USDC) as a behavioral trait, which is important for agent decision-making. However, no annotations exist to provide safety or mutability hints, and the description does not mention rate limits, return format, or what happens on failure.

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?

Single, well-structured sentence that front-loads the purpose and includes all key information (content and cost) without superfluous words.

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 tool with no parameters and no output schema, the description gives a clear idea of what the report contains and the cost. It could mention the output format explicitly, but the overall context is sufficient for a simple report tool.

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?

Input schema has no parameters (0 parameters), so baseline is 4. The description adds no parameter information, but none is needed.

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?

Description clearly states it provides a market report with categories, pricing trends, and opportunities, and mentions a cost. However, it does not explicitly differentiate from sibling tools like 'market_opportunity' or 'prices', though the scope suggests comprehensiveness.

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?

No guidance on when to use this tool versus siblings such as 'market_opportunity', 'prices', or 'trends'. The cost is mentioned but not how to handle the payment or prerequisites.

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