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

Annotations only declare readOnly=false, destructive=false and openWorld=true; the description adds genuinely non-obvious behavior — nothing is published, a claim link is returned for immediate handoff, and free launches also yield a badge snippet. It leaves the return contract for paid tiers implicit, so not a 5.

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?

Four short sentences, front-loaded with the action, then the non-publication caveat, then the return value, then the prerequisite. Every sentence carries information an agent would otherwise have to guess.

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 and nine parameters, the description does the important work of disclosing the return payload (claim link and badge snippet) and the sequencing requirement. It stops short of explaining outcomes for the two bundle plans or what errors look like, which keeps it off a 5.

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 all nine parameters (including the plan enum values and the 'never guess' website_url rule) are already documented in the schema. The description adds only a faint hint about plan tiers via 'for free launches'; 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?

States a specific verb and resource ('Submit a product to Noonlaunch') and immediately qualifies what the call actually does ('Nothing is published by this call'). No sibling tool competes for this action, so an agent can select it unambiguously.

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 an explicit ordering prerequisite: 'Call check_product first', which names a real sibling and links two calls. It does not cover when-not-to-use cases (e.g. duplicate product already claimed), so it stops short of the top band.

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