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

With no annotations provided, the description carries the full burden of behavioral disclosure. It openly states that settlement is not performed internally, describes the return value as an endpoint+body, and gives an amount range. It also implies the effect on ranking. This is strong transparency for a payment-adjacent tool.

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, front-loaded with the core purpose, and every clause adds value. It avoids fluff and does not repeat schema details unnecessarily. This is excellent conciseness.

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 description is complete enough for a tool with three fully documented parameters and no output schema. It explains the unusual x402 flow, states the amount range and permission model, and differentiates from siblings. Minor missing details like idempotency are not critical given the tool's simplicity.

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 100% and each parameter already includes a clear description. The tool description adds little beyond repeating the amount range and USDC denomination, which are already present. It does not introduce new meaning beyond the schema, so the baseline score of 3 is appropriate.

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 opens with 'Rank a notice higher by attaching USDC', a specific verb+resource pair that clearly distinguishes this from sibling tools like board_post or board_read. It also clarifies the paid boost mechanism via x402, leaving no ambiguity about the tool's function.

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 phrase 'Anyone can boost any notice' indicates broad applicability, and the note 'This tool does NOT settle payment itself' tells users they must complete payment via the returned endpoint. However, it does not explicitly name alternative tools (e.g., board_post for creating notices), so its guidance is clear but lacks explicit exclusions.

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