series_books

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

No annotations provided, so description carries the full burden. It discloses that the tool returns placement, is_primary, and book details, and that limit is capped at 40. However, it does not mention error handling, authentication needs, or what happens if the book is not in a series.

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?

Two sentences: first establishes purpose, second adds detail on output and constraint. Every sentence is necessary and efficient, no filler.

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 a simple list tool with 2 params and no annotations, the description covers key aspects: input requirement, output fields, and a constraint. Minor gaps include lack of error info and explicit mention that the book must belong to a series, but overall it is sufficiently 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 0%, so description adds value by explaining book_id as 'given any book in that series' and stating limit cap at 40 with default 20. However, it does not specify format, validation, or constraints for book_id, leaving some ambiguity.

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?

Description clearly states 'List the books in a series (with reading-order placement)', using specific verb and resource. Uniquely identifies the tool's function among siblings like author_books and get_book.

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?

Description implies usage by providing any book in the series, and mentions limit cap of 40. Lacks explicit when-to-use or when-not-to-use guidance, but context is sufficient for an informed agent.

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