Get Cache Statistics

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

With no annotations, the description carries full responsibility for behavioral disclosure. It implies a read-only operation ('get') but does not explicitly state side effects, permissions, rate limits, or what specific statistics are included. The description adds some context by naming 'local PhilArchive cache' and 'cross-reference mappings,' but fails to disclose important behavioral details.

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 is a single, front-loaded sentence that clearly states the purpose. There is no wasted text, and every word contributes to the meaning. It is appropriately concise for a simple tool.

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?

The tool has no output schema, so the description must explain what the returned statistics contain. It only says 'statistics about the local PhilArchive cache and cross-reference mappings' without specifying what those statistics are (counts, sizes, timestamps, mapping details). Given its simplicity, it is missing needed details for the agent to correctly interpret the results.

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?

The tool has no parameters, so the schema coverage is trivially 100%. The description does not need to explain parameter semantics. Per the rubric, a zero-parameter tool only needs a baseline of 4, which is met.

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 the tool's purpose: to get statistics about the local PhilArchive cache and cross-reference mappings. The verb 'get' and resource are specific, and it distinguishes from sibling tools which focus on papers, citations, and searches rather than cache internals.

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 is provided on when to use this tool versus alternatives. It does not mention prerequisites, typical use cases, or when not to use it (e.g., when needing paper data). The description only states what it does, leaving the agent to infer usage context.

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