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

The annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is clear. The description adds useful context about the returned content categories (tools, probe history, issues, verified-data status), but it does not mention missing-server behavior, auth requirements, or result structure.

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?

A single front-loaded sentence with no filler. It immediately names the verb, the resource, and the key content returned.

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 simple read-only lookup with rich annotations and no output schema, the description gives a reasonable summary of the returned data categories. However, it omits the meaning of the required slug input and does not clarify result shape or not-found behavior, leaving an important gap for correct invocation.

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 only parameter is slug, and schema description coverage is 0%, so the description must explain it but does not. The description gives no indication that the required input is a server slug, leaving the schema to carry the entire parameter burden.

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 states a specific verb and resource: retrieves a financial MCP server listing. It also names the included data categories, but it does not explicitly differentiate this tool from the sibling search_mcp_servers, leaving the singular-vs-search distinction 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 description provides no guidance on when to use this tool versus search_mcp_servers or other MCP-related siblings. It implies retrieval but does not state prerequisites, exclusions, or alternative routing conditions.

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