get_cache_stats

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. While it mentions what statistics are retrieved (hit rates for search and detail caches), it doesn't disclose important behavioral traits like whether this requires authentication, rate limits, what format the statistics are returned in, or whether this is a read-only operation. The description is minimal and lacks 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.

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

The description is a single, efficient sentence that states the purpose without unnecessary elaboration. It's appropriately sized for a zero-parameter tool that retrieves statistics, though it could be slightly more structured by explicitly stating it's a read operation.

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 the tool has no parameters, no annotations, and no output schema, the description provides basic purpose information but lacks important context. For a statistics retrieval tool, it should ideally mention the format of returned data, whether it's real-time or cached statistics, and any authentication requirements. The description is minimally adequate but has clear gaps.

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 0 parameters with 100% schema description coverage, so the baseline is 4. The description appropriately doesn't discuss parameters since none exist, and the schema already fully documents this (empty object).

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: '获取缓存统计信息' (get cache statistics) with specific mention of '搜索缓存和详情缓存的命中率等' (hit rates for search cache and detail cache). It uses a specific verb ('获取' - get) and resource ('缓存统计信息' - cache statistics), though it doesn't explicitly distinguish from sibling tools like clear_cache.

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 description provides no guidance on when to use this tool versus alternatives. There's no mention of when this tool should be used, when it shouldn't, or how it relates to sibling tools like clear_cache, get_trial_detail, or search_trials.

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