goodreads_book

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

The description discloses that data is credential-free, public, and parsed from Goodreads' GraphQL cache. This provides useful context beyond the missing annotations, though it omits details like error handling or rate limits.

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 uses two concise sentences: the first states the purpose, the second details return fields and data source, with no redundant information.

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 the simple one-parameter schema and no output schema, the description fully explains returned fields and data source, making it complete for an agent to use.

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?

The input schema already describes the single parameter 'id' as 'Goodreads book id' (100% coverage). The description adds no additional semantic information, meeting the baseline.

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 retrieves a single Goodreads book and lists specific returned fields (description, authors, series, etc.), distinguishing it from sibling tools like goodreads_search or goodreads_author.

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 does not explicitly state when to use this tool versus siblings (e.g., goodreads_search for finding books, goodreads_author for author details). It only implies usage when a book ID is known.

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