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

With no annotations provided, the description carries full responsibility for behavioral disclosure but offers minimal context. It does not explain what data is searched (titles vs abstracts), what the fetch_details parameter controls (critical given default true), expected response format, or rate limiting. The agent lacks information to predict side effects or output structure.

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 consists of a single, efficient sentence with no redundant or filler text. While appropriately brief, it arguably errs on the side of under-specification given the complexity of the tool and lack of schema documentation.

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 three parameters with zero schema coverage, no annotations, no output schema, and a specialized academic domain (cryptography), the description is inadequate. It lacks explanation of IACR scope, pagination behavior, result metadata fields, or the impact of fetch_details on response size and latency.

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 description coverage is 0%, requiring the description to compensate for undocumented parameters. It fails to explain the query parameter format (keywords? Boolean operators?), max_results constraints, or the critical fetch_details boolean (what 'details' are fetched?). The agent has no semantic guidance beyond the property names themselves.

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 action ('Search') and resource ('academic papers from IACR ePrint Archive'), and specifies the unique repository to distinguish from sibling search tools like search_arxiv. However, it fails to differentiate from read_iacr_paper or download_iacr, leaving ambiguity about whether this returns metadata or full text.

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?

No guidance provided on when to use this tool versus alternatives like read_iacr_paper (which likely retrieves full text) or the generic search tool. No mention of prerequisites, rate limits, or query syntax requirements.

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