audible_search

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

With no annotations, the description must carry the behavioral burden. It usefully discloses that the data is credential-free public catalog data from api.audible.com and that at least one filter is required. However, it does not describe pagination, result shape, or behavior when no filter is supplied, leaving notable gaps.

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, but 'Search Audible's catalog' and 'Searches Audible's audiobook catalog...' are redundant openings. The useful constraints (at least one filter, credential-free) appear after the redundancy. It is efficient overall, but not every sentence earns its place.

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?

Without an output schema or annotations, the description should clarify what the tool returns and any edge cases. It specifies the data source and required-filter rule, but not result format, pagination, or behavior with no filters. This is adequate for a simple search tool but not fully complete.

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 coverage is 100%, so the baseline is 3. The description adds value by introducing the 'at least one filter is required' constraint, which is absent from the schema (all properties optional, required empty). It also maps q/title/author/narrator/category_id to concrete search dimensions.

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 identifies the tool as searching Audible's audiobook catalog by keyword, title, author, narrator, or category id. This is a specific verb+resource with enumerated search dimensions. However, it does not distinguish this tool from nearby siblings like audible_products or audible_categories.

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 statement 'At least one filter is required' gives explicit operational guidance, and listing the searchable fields defines the intended use cases. It does not mention alternatives or exclusions, but the context is clear enough for an agent to know when to invoke it.

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