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

No annotations are provided, so the description carries the full behavioral burden. It implies a seller-only mutation ('link') but does not disclose permissions, side effects, reversibility, idempotency, or error behavior. Only the actor role hint adds minimal value.

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 front-loaded sentence with no filler, and the actor qualifier is placed first. It may be too terse for the tool's complexity, but that is more a completeness issue than a conciseness flaw.

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?

This is a 2-parameter mutation tool with no annotations, no output schema, and 0% schema description coverage. The description does not say what happens on success, what the return value is, whether the link can be undone, or what constraints apply. It is not complete enough for the agent to invoke confidently.

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 0%, so the description should compensate. It semantically mentions a 'listing' and a 'wish', but does not map these to listing_id and wish_id, nor explain their formats, sources, or constraints. It adds only slight meaning over the bare 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?

The description states a specific verb ('link') and the two resources involved ('listing' and 'wish'), plus the intended actor ('Seller'). It does not explicitly differentiate from siblings like vote_wish or list_wishes, but the core action is clear.

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 identifies the seller as the intended user, but gives no conditions for when to use this tool, no prerequisites, and no alternatives or exclusions. The agent must infer usage entirely from the tool name and description.

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