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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states that no payment is made, which is a useful behavioral trait, but it omits other details such as whether it makes network calls, requires authentication, has side effects, or how results should be handled. The description is too sparse to provide adequate transparency for a tool that appears to return sensitive metadata.

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 sentence, which is concise in length, but its dense jargon ('paid x402 endpoint', '0.50 USDC bundled risk-pack upsell') reduces readability. It does not front-load the core idea clearly; the most important part ('without making a payment') comes at the end. The structure is not poorly organized, but the clarity suffers, making it only adequately concise.

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?

There is no output schema, so the description must explain return values and behavior. It lists three items (x402 endpoint, USDC upsell, ACP contract_risk metadata) but does not describe their structure, format, or how they relate to the input parameters. For a batch tool with only two params and no output schema, this is an incomplete picture, leaving the agent uncertain about what to expect.

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?

The schema describes token_addresses (comma-separated, max 5) but leaves chain undocumented. The description does not mention either parameter by name nor add any detail about how they affect the output. With schema coverage at 50%, the description should compensate for the missing chain parameter, but it fails to do so, leaving a significant gap in parameter meaning.

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 verb 'Return' and resource 'metadata' indicate an output-producing tool, but the phrasing 'paid x402 endpoint, 0.50 USDC bundled risk-pack upsell, and ACP contract_risk checkout metadata' is jargon-heavy and unclear. It does distinguish itself from sibling checkout tools by explicitly noting 'without making a payment', which helps differentiate it from the checkout siblings, but the specific purpose remains ambiguous.

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?

The phrase 'without making a payment' implies this tool is for retrieving checkout metadata without executing payment, giving a clear usage context. However, it does not explicitly state when to use this over siblings like token_safety_free_preview or pre_trade_risk_batch_checkout, nor does it mention any prerequisites or exclusions. This is implied rather than explicit.

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