Google Books — Get volume

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

No annotations are provided, so the description carries full burden for behavioral disclosure. It does not mention `volumeInfo` structure quirks, whether a missing/unknown ID returns an error or empty result, rate limiting for API calls, or that keywords in an ID could cause false positives. For a single-item GET tool with zero annotations, this is thin.

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?

One short sentence, zero waste, front-loaded with the verb. Efficient but arguably under-specified for the parameters dimension, which the conciseness score doesn't penalize heavily.

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?

With a single required parameter, a simple schema, and no output schema, the tool is simple. However, no output schema exists and there are zero annotations, so the description should explain what the returned volume contains (volumeInfo fields) and error behavior for unknown IDs. The description is too terse for a tool returning a full book record.

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% and the single parameter `id` has no type specifics or format hints in the description beyond 'by id.' The description adds minimal value over the raw schema, not specifying what format the id takes (e.g., alphanumeric Google ID vs ISBN or URL-encoded).

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 'Fetch a single volume by id,' a clear verb+resource combination. It distinguishes from sibling tools like books_google_search (which searches) and books_openlibrary_get_work (which fetches by OpenLibrary work ID rather than Google volume ID).

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 'by id' phrasing implies this is for when you already have a Google volume ID, distinct from searching. However, it does not explicitly say when to use this vs alternatives like books_search_across_all or books_google_search, nor does it note that the ID must be a Google Books volume ID.

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