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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so safety is covered. Beyond that the description adds nothing: it doesn't say what the calculation yields, whether it requires specific units/currency, or what the response shape is for what is fundamentally a compute 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?

It's a single short sentence, but it is not front-loaded with useful content: the substantive half ('client and server side from freedailypro') is noise, and the informative half is a bare noun phrase.

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 computation tool with 8 parameters, no output schema, and low schema coverage, the description should explain what is computed and what comes back. It explains neither, so an agent cannot predict the result of calling it.

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 only 38% across 8 parameters (6 required), and the description contributes zero parameter information. Half the parameters (pages, percent, listPrice, upfrontCost, targetRoyalty) are undocumented in both schema and description, leaving the agent to guess at units and semantics.

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?

It identifies the resource as a print cost and royalty calculator, which is slightly more than restating the name, but there's no concrete verb describing what the tool actually returns or does. The trailing phrase 'client and server side from freedailypro' is vendor filler that adds no discriminating information against siblings like publishing_spine_width or publishing_isbn.

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 versus the four other publishing_* tools, and no mention of prerequisites or inputs (e.g., that you need a print method and list price). The agent has to infer everything from the schema alone.

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