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adamamer20-paper-search-mcp-openai

search_arxiv

Search academic papers from arXiv.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
queryYes
max_resultsNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed7 schema fields changed
    • addedInput schema / $schema
      Added value: +"http://json-schema.org/draft-07/schema#"
    • addedInput schema / additionalProperties
      Added value: +false
    • removedInput schema / properties / max_results / title
      Removed value: -"Max Results"
    • changedInput schema / properties / max_results / type
      Previous value: -"integer"New value: +"number"
    • removedInput schema / properties / query / title
      Removed value: -"Query"
    • removedInput schema / title
      Removed value: -"search_arxivArguments"
    • changedOutput schema / (root)
      Previous value: -{
      -  "properties": {
      -    "result": {
      -      "items": {
      -        "additionalProperties": true,
      -        "type": "object"
      -      },
      -      "title": "Result",
      -      "type": "array"
      -    }
      -  },
      -  "required": [
      -    "result"
      -  ],
      -  "title": "search_arxivOutput",
      -  "type": "object"
      -}New value: +null
  2. First observed

TDQS

C2/5.0
Behavior1/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure but fails to mention read-only status, rate limits, query syntax capabilities, pagination behavior, or return value structure. It only states the basic action without any operational context.

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

Conciseness3/5

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

The description is a single efficient sentence with no wasted words, earning high marks for structural efficiency. However, given the lack of annotations, output schema, and presence of numerous siblings, it is inappropriately undersized for the complexity of the tool context.

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

Completeness1/5

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

With no annotations, no output schema, 0% schema coverage, and 16+ sibling tools including alternative search sources, the description should explain arXiv-specific search behavior, query operators, or result formats. It provides none of this necessary context.

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

Parameters1/5

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

Schema description coverage is 0%—neither 'query' nor 'max_results' have schema descriptions. The description completely fails to compensate by providing semantics, query syntax guidance, or constraints (e.g., max_results defaults to 10).

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

Purpose4/5

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

The description clearly states the verb (Search) and resource (academic papers from arXiv), providing specific scope. However, it does not differentiate from sibling search tools like search_biorxiv or search_pubmed in terms of use cases or content types, merely repeating the repository name implied by the tool name.

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

Usage Guidelines1/5

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

The description provides no guidance on when to use this tool versus the generic 'search' tool, other domain-specific search tools (search_biorxiv, etc.), or how it relates to download_arxiv or read_arxiv_paper. No prerequisites or alternative selection criteria are mentioned.

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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