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

No annotations are provided, so the description carries the full burden. It does disclose the signing prerequisite implied by the signature flow, which is valuable behavioral context, but it omits permissions, idempotency/reversibility, and what the registration actually mutates.

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?

Two tight sentences, prerequisite front-loaded after the purpose. No filler.

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 annotations, no output schema, and five required parameters with zero documentation in either schema or description. The workflow hint helps but leaves an agent without the parameter meaning needed to actually construct the call.

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 0% and none of the five required parameters (mint, wallet, event_id, issued_at, signature) are explained. Only the signature's origin is loosely implied by the signing-message instruction; mint/event_id/issued_at semantics are entirely undocumented.

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 (link/register) and resource (FOMO thesis to wallet) plus the outcome (+20% bonus), which distinguishes it from the read-only sibling get_fomo_bonus and from register_for_payment. It stops short of explicitly naming a sibling to disambiguate against.

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?

Gives a clear prerequisite: sign get_signing_message(action="fomo_bonus") first, which routes the agent to a specific sibling and action. There is no 'when not to use' or mention of what happens if the signature is missing/expired.

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