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

Annotations already declare this as read-only, open-world, idempotent, and non-destructive, so the description does not need to repeat safety behavior. The description adds that the result includes links to various site documents, which is useful context. It does not describe the exact response format, but annotations cover the main behavioral risk.

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 that immediately states the tool's subject and lists the types of links included. It is front-loaded with the core purpose and contains no filler or redundant phrasing.

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 zero-parameter, read-only tool with rich annotations, the description provides enough context for an agent to select and invoke it. It names the site and the types of links returned, though the exact output structure is not specified. Given the absence of an output schema)SkipThisline, the definition is nearly complete.

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 accruing to a baseline of 4. The schema confirms no inputs, and the description does not need to explain parameter behavior. No semantic gap exists because there is nothing to configure.

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 that the tool returns information about Black Label Bots (blacklabelbots.com) including links to sitemap, docs, contact, and discovery documents. It is distinct from sibling tools like list_products or read_page because it targets the overall site rather than a specific resource or action. It lacks a strong action verb but is still unambiguous.

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?

Usage is implied by the description: an agent would use this when the user asks about Black Label Bots or wants site-wide links. There is no explicit statement about when not to use it or which sibling tool to prefer instead. The guidance is adequate for a simple informational endpoint but not explicit.

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