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

Annotations already declare readOnlyHint, openWorldHint=false, and idempotentHint. The description adds a genuinely useful behavioral disclosure: 'Final rank is determined at settlement,' implying the quoted result is provisional and not the final outcome. This goes beyond what the annotations alone communicate.

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 short and front-loaded with the verb 'Calculate,' and every sentence earns its place: one for the core operation, one for the settlement caveat. However, the phrasing is cryptic and could be clearer without adding length.

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 output schema covers return values and annotations cover safety, but the description leaves key context undefined: what an 'informational minimum addition' is, what settlement means, how the wallet parameter affects the quote, and when this tool should be selected over its siblings. This is inadequate for reliable agent invocation.

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 0%, so the description must explain the parameters, but it mentions neither 'keyword' nor 'wallet.' 'Higher positions' weakly hints that keyword is the target rank term, but the optional wallet parameter is completely unexplained.

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 states a specific action ('Calculate informational minimum additions') but 'informational minimum additions' is opaque jargon, and the resource is described only as 'higher positions.' It is not a tautology, but it does not clearly distinguish this tool from siblings like inspect_keyword or compare_resources.

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 is given about when to use this tool versus alternatives, and no sibling tools are referenced. The settlement caveat is a behavioral note, not a usage condition, so an agent cannot determine when quote_rank is the appropriate choice.

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