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online111111

public-apis-mcp-server

by online111111

search_books

Search for books by title or author and retrieve details including publication year and cover images using Open Library's free API.

Instructions

搜索图书信息(标题、作者、出版年份、封面等)。 数据来源: Open Library,完全免费。

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
queryYes搜索关键词(书名、作者等)
limitNo返回结果数,默认 5,最大 20

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are provided, so the description should disclose behavioral traits. It only states the tool searches data from Open Library and is free, but does not explicitly state it is read-only, has no side effects, or any rate limits. The behavioral profile is incomplete.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Description is very concise: two sentences, first covering purpose and fields, second covering data source and cost. Information is front-loaded and every sentence adds value. No wasted words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (2 parameters, required query, default limit), the description covers source and search fields. An output schema exists, so return details need not be in description. However, it lacks mention of the max limit (20) which is in schema, and does not describe pagination or other potential constraints, making it slightly incomplete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so baseline is 3. The description adds the list of searchable fields (title, author, etc.) which are not in the schema but relate to query. However, this does not significantly enhance parameter understanding beyond what the schema already provides.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states the tool searches for book information (title, author, publication year, cover, etc.) and specifies the data source (Open Library) and cost (free). The verb 'search' and resource 'books' are specific and distinct from sibling tools like search_arxiv.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Description provides no guidance on when to use this tool versus alternatives. It does not mention when not to use it or any prerequisites, leaving the agent to infer usage from the tool name alone.

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

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