get_cache_health

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

No annotations are provided, so the description carries the full burden. It indicates a read-only status check without destructive effects. However, it does not specify the return type (e.g., boolean) or behavior under different cache states (e.g., ready vs. not ready).

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, concise sentence of 14 words that communicates the purpose immediately. It is well-structured and front-loaded, with no wasted words.

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's simplicity (no parameters, no output schema), the description covers the essential purpose and a key condition (post-install state). However, it lacks information about the return value or how the result is communicated, which would improve completeness.

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 input schema has no parameters, so the description does not need to explain them. The description adds no parameter information, but with zero parameters, the baseline is 4, and no further detail is necessary.

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 check if the docs cache is ready to use, specifically mentioning it's empty after pip install without clone/sync. This distinguishes it from sibling tools like check_doc_page or get_doc_status, which focus on specific aspects of documentation rather than cache readiness.

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 context that the cache may be empty after pip install, implying the tool is useful for checking readiness before using other doc tools. However, it does not explicitly state when to use this tool versus alternatives (e.g., check_doc_page) or provide a clear usage scenario.

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