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

Annotations already declare this is a non-read-only, open-world, idempotent, non-destructive operation, so the bar is lower. The description still adds real value beyond them: no authentication is required, the crawl is asynchronous with an expected ~1 minute latency, and status_url should be polled for completion.

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 short sentences with zero filler; the core action and the no-account constraint are front-loaded, and the polling instruction is a tight actionable follow-up.

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 two-parameter write tool with an output schema available, the description covers the essentials: action, auth requirement, async timing, and how to check completion. It stops short of describing duplicate-submission behavior or what to do if the crawl never completes.

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 description coverage is 100% for both parameters, so the schema already explains url and the optional claim email. The description only restates that a product URL is submitted and adds no format, normalization, or validation semantics 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?

Specific verb and resource: 'Submit a product URL to be crawled and listed,' which clearly separates it from the read-oriented siblings (get_product, search_products, compare_products). It does not explicitly name an alternative, but no sibling competes for this write action, so confusion risk is low.

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?

Use is implied (you call this when you want a product listed) and the description helpfully says 'No account needed' and to 'poll status_url' afterward. However, it never states when NOT to use it, nor what to do if a listing already exists or if the crawl fails.

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