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

Annotations already cover the safety profile (readOnly, idempotent, openWorld), so the description correctly focuses on what annotations cannot express: per-call pricing (0.015 USDC, subscription-included) and the 50-mint batch ceiling. It omits partial-failure or per-mint error behavior, which is a real gap for a batch tool but a minor one.

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 sentences that both earn their place: the first defines scope and the sibling relationship, the second delivers cost. Front-loaded and waste-free.

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?

For a read-only batch tool with annotations carrying safety, a named list of the checks performed, pricing, and the batch limit, the description is close to complete. Only batch-level failure semantics are unaddressed, and with no output schema present that is a modest 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 0%, so the description must compensate, and it does: it clarifies that mints are Solana token mints the caller already holds and that up to 50 may be passed in one call. It adds no format or ordering detail beyond that, but for a single param it is sufficient.

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 ('launch checks ... for up to 50 Solana token mints') and explicitly anchors to the sibling new_launches, with the batch distinction made clear by 'in one call'. An agent can differentiate it from new_launches and other siblings without opening a schema.

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?

'Mints you already know about' implicitly signals the selection condition versus new_launches, which is presumably for discovery, and the 50-mint cap frames batch use. It gives clear context but stops short of an explicit when-to-use-this-instead-of-new_launches statement.

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