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

Beyond the readOnly and openWorld annotations, the description discloses the detailed return contents, sort behavior, live-auction status, and a precise pricing model: $0.002 in USDC per successful call via x402, with failed calls not charged. This is unusually rich behavioral context for an agent deciding whether and how to call the tool.

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 purpose is front-loaded and the description is compact for the amount of useful information it conveys. The long field-list sentence is dense but earns its place by telling the agent what data comes back.

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 complete parameter schemas and an output schema, the description needs mainly to explain scope and behavior; it does that, including pricing and result fields. The only notable gap is lack of explicit routing guidance relative to sibling tools.

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 the schema already documents q, page, sort, and limit. The description adds some sort wording, but it loosely says 'bid' rather than matching the schema's price_high and price_low values, so it does not add much reliable parameter meaning beyond the 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 clearly identifies a keyword search over live US government surplus auctions on GovDeals and lists the returned asset fields. It is specific about resource and scope, though it does not explicitly distinguish itself from the many sibling government-data tools or name an alternative.

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?

Usage is implied: supply a keyword, optionally sort, page, or limit. The cost model is stated, but there is no explicit when-to-use guidance, no when-not-to-use guidance, and no named alternative such as another government-bids tool.

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