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

Annotations declare readOnlyHint and idempotentHint; the description corroborates this with 'Opening it changes nothing' and further discloses that the recipient completes the claim on the page, not the caller. It adds genuine context beyond the annotations rather than repeating them, and introduces no contradictions.

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, front-loaded with what the link is, followed by the side-effect clarification and the critical do-not-open warning last. No filler and no repetition of the schema or annotations.

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 no output schema, the description adequately conveys that the return value is a shareable link and how it behaves downstream, including the already-claimed path. It stops short of stating anything about link expiry, reuse, or permissions, which would matter for a handoff artifact but is a minor gap.

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% and the single org_key parameter is fully documented in the schema, including the fallback that older keys or plain slugs work. The description contributes only indirect framing ('runs a club or store') and adds no format or sourcing detail beyond the schema, which is the expected baseline when the schema does the work.

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 establishes the artifact (a claim link for a club/store's free listing) and its audience (the owner), so an agent can tell this produces a shareable claim URL. It does not explicitly contrast itself with the near-identical siblings create_correction_link and create_shop_link, which is the only thing keeping it from a 5.

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?

It states the intended handoff scenario, covers the edge case where the listing is already claimed (submit anyway, Hat Trick Local reviews), and gives an explicit prohibition: 'Never open the link to submit for the person.' That is when-to-use, what-happens-otherwise, and when-not, all spelled out.

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