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

Annotations cover the safety profile (non-read-only, open-world, idempotent, non-destructive), so the bar is lower, and the description still adds real context: a token is required, and the tool is a multi-step pipeline (read, draft, detect, file) rather than a single write. It also concretizes the idempotency hint by stating the duplicate case returns the existing listing.

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 sentences, front-loaded with the action and scope, followed by the auth prerequisite and duplicate behavior. No padding or restatement of the title.

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?

No output schema exists, and the description only partially compensates by describing the duplicate-case return; it doesn't say what a successful new submission returns (listing id, URL, review status). Given the annotations already cover safety and the parameters are fully documented, this is a minor gap rather than a blocking omission.

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%, so the schema already documents url, note, and maker fully. The description adds no parameter-level meaning, and 'Requires a token' refers to auth rather than a declared input. Baseline 3 applies.

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 names a specific verb and resource (submit a website/product), then details the internal pipeline: read site, draft listing, detect product vs agent skill, file for review. This scope statement distinguishes it from siblings like preview_product (which presumably stops at drafting) without needing to name them.

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 context is implied rather than stated: an agent can infer this is the action endpoint and preview_product is the read-only alternative, but the description never names alternatives or says when not to use this tool. The duplicate-handling sentence is behavioral, not guidance. No explicit when/when-not.

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