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

With no annotations, the description carries the transparency burden. It does disclose that the tool reports on server health and API connectivity, implying a live status check, and mentions additional static configuration data. However, it does not state whether the operation is read-only, whether authentication is required, or if any rate limits apply, leaving some behavioral ambiguity.

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 consisting of a comma-separated list. It contains no fluff or redundancy, front-loads the core information (server health and connectivity), and earns its place by clearly conveying the tool's scope in minimal space.

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 adequately covers the main categories of information it returns. It is not exhaustive—for instance, it doesn't specify the response format—but it is sufficient for an agent to understand the tool's purpose and decide to call it.

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 zero parameters and an empty schema, so there is nothing to explain. Per the rubric, a no-parameter tool is a baseline 4. The description appropriately focuses on what the tool returns instead of parameter details.

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 enumerates the tool's outputs: server health, API connectivity status, supported sources and countries, tool list, and pricing info. Although there is no explicit verb, the resource scope is specific and distinct from the sibling pricing-focused tools, which all deal with product or price data.

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 usage guidance is provided. The description does not indicate when to use this tool versus others, nor does it mention prerequisites, alternatives, or exclusions. It simply lists what information the tool returns, leaving the agent without direction on when to invoke it.

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