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

With no annotations, the description carries the full burden. It does disclose useful behavioral context: results name an exact version and are kept separate from journal articles, DOI registration, preservation and verification. It says nothing about pagination behavior (the cursor param), result volume, or rate limits, leaving real gaps.

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 front-loaded sentences with almost no waste; the scope constraint leads and the result-semantics note follows. Slightly dense in the second sentence but appropriately sized.

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?

For a search tool with no output schema and no annotations, the description covers purpose and what results represent, but omits pagination guidance and any parameter meaning. An agent can call it, yet cannot confidently interpret cursor-based paging or query semantics.

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% across three parameters (limit, query, cursor), and the description adds no meaning for any of them. The cursor's opaque pattern and the query/limit semantics are left entirely unexplained, so the description fails to compensate for the coverage gap.

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?

States a specific verb (search) and resource (public preprint snapshots) and scopes it to 'completed, currently accessible' items, which is more precise than the name alone. It does not explicitly name sibling search tools (e.g. search_resources) to differentiate itself, so sibling distinction is only implicit.

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 'only completed, currently accessible' phrasing implies a filter context, but there is no explicit when-to-use guidance and no mention of alternatives such as get_public_preprint for direct retrieval or search_resources for broader queries. Usage is inferable but not stated.

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