create_book

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

With no annotations, the description fully details behavioral traits: book_type is not validated, registered values listed, registration process for new types, return format, special type excluded from bookshelf, and exclusion of import. No contradictions.

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?

Purpose is front-loaded, but the description is a single dense paragraph. It contains necessary details but could benefit from bullet points or clearer separation of return info and next steps.

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 output schema exists (return {ok, book_id(str)}), the description covers purpose, key parameter behavior, and post-usage guidance. Missing explanations for grade, edition, and subject_id, but overall sufficient for a creation tool with subsequent steps.

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% and description only adds meaning for book_type (enumerated values, registration). Other parameters (grade, title, edition, subject_id) lack any explanation. Baseline 3 is appropriate as description partially compensates.

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 it creates a new empty book (新建一本空书) and distinguishes from siblings by noting that subsequent steps require add_book_node/add_book_item or import. The verb 'create' and resource 'book' are specific.

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 explains what to do after using this tool (use add_book_node/add_book_item or import) and warns about registering new book types. However, it does not explicitly state when NOT to use this tool versus alternatives.

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