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

Annotations cover readOnlyHint and openWorldHint, and the description adds value beyond them: the storefront URL being fixed server-side and the normalized static-page return. No auth, rate-limit, or error semantics are covered, but the additions are meaningful.

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?

Three tight sentences, front-loaded with the core action, then the fixed-URL constraint, then the sibling routing. Every sentence carries distinct, useful information.

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?

With an output schema present, return values need no explanation, and annotations cover the safety profile. The description supplies handle examples and the listing alternative, so it is complete enough for a single-param detail tool.

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?

Schema coverage is 100%, so baseline is 3; the description earns above baseline by enumerating real handle values (nfl, mlb, nba, nhl, nascar) and clarifying handle = URL slug, adding meaning beyond the schema.

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?

States a specific verb and resource ("Returns normalized static page detail for one Pristine Marketplace page handle") and differentiates from siblings by naming pristine_marketplace_pages. Concrete handle examples (nfl, mlb, nba, nhl, nascar) let an agent recognize the target immediately.

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?

Explicitly routes the agent to pristine_marketplace_pages for listing pages, giving clear when-to-use context for this detail tool. It lacks an explicit when-not/no-match condition, but the context is unambiguous.

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