get_audiobook_details

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

With no annotations, the description carries the burden of behavior disclosure. It usefully indicates the tool returns detailed information including runtime, reviews, and sample, but it does not mention error behavior, authentication requirements, or whether it is a read-only operation beyond the implication of the verb 'get'.

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 one efficient sentence that front-loads the main purpose and appends the most relevant data categories. Every phrase earns its place with no redundancy.

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 simple single-parameter lookup with no output schema, the description is reasonably complete: it states the input (ASIN via schema) and the kind of output expected. It could additionally note behavior for invalid or missing ASINs, but overall it gives an agent enough to understand the tool's role.

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 the ASIN parameter is already clearly described as the unique Audible identifier. The description adds no additional parameter-level meaning, so the baseline 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 names a specific verb and resource: 'Get detailed information about a specific audiobook'. It also lists concrete content areas (runtime, reviews, sample), and the 'specific audiobook' wording clearly distinguishes it from sibling search_audiobooks.

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 implies the tool is for retrieving details about one known audiobook, which gives a basic sense of when to use it. However, it does not explicitly state when to prefer this over search_audiobooks or other siblings, nor does it mention any exclusions.

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